]> git.sesse.net Git - ffmpeg/blobdiff - libavcodec/mpegvideo.c
flash video (flv) support patch by (Garrick Meeker <gmeeker at theoryllc dot com>)
[ffmpeg] / libavcodec / mpegvideo.c
index 5ca2727c8b0f7db7505e6d6caf8dbb5608e92448..8b9caaf802bc97d390b79a6c1d8e8824ce680917 100644 (file)
  * 4MV & hq & b-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
  */
  
+/**
+ * @file mpegvideo.c
+ * The simplest mpeg encoder (well, it was the simplest!).
+ */ 
 #include <ctype.h>
+#include <limits.h>
 #include "avcodec.h"
 #include "dsputil.h"
 #include "mpegvideo.h"
-#include "simple_idct.h"
 
 #ifdef USE_FASTMEMCPY
 #include "fastmemcpy.h"
 //#undef NDEBUG
 //#include <assert.h>
 
+#ifdef CONFIG_ENCODERS
 static void encode_picture(MpegEncContext *s, int picture_number);
+#endif //CONFIG_ENCODERS
 static void dct_unquantize_mpeg1_c(MpegEncContext *s, 
                                    DCTELEM *block, int n, int qscale);
 static void dct_unquantize_mpeg2_c(MpegEncContext *s,
                                    DCTELEM *block, int n, int qscale);
 static void dct_unquantize_h263_c(MpegEncContext *s, 
                                   DCTELEM *block, int n, int qscale);
-static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w);
+static void draw_edges_c(uint8_t *buf, int wrap, int width, int height, int w);
+#ifdef CONFIG_ENCODERS
 static int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
+static int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
+#endif //CONFIG_ENCODERS
 
-void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w)= draw_edges_c;
-static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h, 
-                                    int src_x, int src_y, int w, int h);
+void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w)= draw_edges_c;
 
-#define EDGE_WIDTH 16
 
 /* enable all paranoid tests for rounding, overflows, etc... */
 //#define PARANOID
@@ -57,7 +64,7 @@ static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int bl
 /* for jpeg fast DCT */
 #define CONST_BITS 14
 
-static const unsigned short aanscales[64] = {
+static const uint16_t aanscales[64] = {
     /* precomputed values scaled up by 14 bits */
     16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
     22725, 31521, 29692, 26722, 22725, 17855, 12299,  6270,
@@ -65,70 +72,60 @@ static const unsigned short aanscales[64] = {
     19266, 26722, 25172, 22654, 19266, 15137, 10426,  5315,
     16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
     12873, 17855, 16819, 15137, 12873, 10114,  6967,  3552,
-    8867, 12299, 11585, 10426,  8867,  6967,  4799,  2446,
-    4520,  6270,  5906,  5315,  4520,  3552,  2446,  1247
+    8867 , 12299, 11585, 10426,  8867,  6967,  4799,  2446,
+    4520 ,  6270,  5906,  5315,  4520,  3552,  2446,  1247
 };
 
-/* Input permutation for the simple_idct_mmx */
-static const UINT8 simple_mmx_permutation[64]={
-       0x00, 0x08, 0x04, 0x09, 0x01, 0x0C, 0x05, 0x0D, 
-       0x10, 0x18, 0x14, 0x19, 0x11, 0x1C, 0x15, 0x1D, 
-       0x20, 0x28, 0x24, 0x29, 0x21, 0x2C, 0x25, 0x2D, 
-       0x12, 0x1A, 0x16, 0x1B, 0x13, 0x1E, 0x17, 0x1F, 
-       0x02, 0x0A, 0x06, 0x0B, 0x03, 0x0E, 0x07, 0x0F, 
-       0x30, 0x38, 0x34, 0x39, 0x31, 0x3C, 0x35, 0x3D, 
-       0x22, 0x2A, 0x26, 0x2B, 0x23, 0x2E, 0x27, 0x2F, 
-       0x32, 0x3A, 0x36, 0x3B, 0x33, 0x3E, 0x37, 0x3F,
-};
-
-static UINT8 h263_chroma_roundtab[16] = {
+static const uint8_t h263_chroma_roundtab[16] = {
+//  0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
     0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
 };
 
-static UINT16 (*default_mv_penalty)[MAX_MV*2+1]=NULL;
-static UINT8 default_fcode_tab[MAX_MV*2+1];
+#ifdef CONFIG_ENCODERS
+static uint8_t (*default_mv_penalty)[MAX_MV*2+1]=NULL;
+static uint8_t default_fcode_tab[MAX_MV*2+1];
 
-/* default motion estimation */
-int motion_estimation_method = ME_EPZS;
+enum PixelFormat ff_yuv420p_list[2]= {PIX_FMT_YUV420P, -1};
 
 static void convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16)[64], uint16_t (*qmat16_bias)[64],
-                           const UINT16 *quant_matrix, int bias, int qmin, int qmax)
+                           const uint16_t *quant_matrix, int bias, int qmin, int qmax)
 {
     int qscale;
 
     for(qscale=qmin; qscale<=qmax; qscale++){
         int i;
-        if (s->fdct == ff_jpeg_fdct_islow) {
+        if (s->dsp.fdct == ff_jpeg_fdct_islow) {
             for(i=0;i<64;i++) {
-                const int j= s->idct_permutation[i];
+                const int j= s->dsp.idct_permutation[i];
                 /* 16 <= qscale * quant_matrix[i] <= 7905 */
                 /* 19952         <= aanscales[i] * qscale * quant_matrix[i]           <= 249205026 */
                 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
                 /* 3444240       >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
                 
-                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / 
+                qmat[qscale][i] = (int)((uint64_t_C(1) << QMAT_SHIFT) / 
                                 (qscale * quant_matrix[j]));
             }
-        } else if (s->fdct == fdct_ifast) {
+        } else if (s->dsp.fdct == fdct_ifast) {
             for(i=0;i<64;i++) {
-                const int j= s->idct_permutation[i];
+                const int j= s->dsp.idct_permutation[i];
                 /* 16 <= qscale * quant_matrix[i] <= 7905 */
                 /* 19952         <= aanscales[i] * qscale * quant_matrix[i]           <= 249205026 */
                 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
                 /* 3444240       >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
                 
-                qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) / 
+                qmat[qscale][i] = (int)((uint64_t_C(1) << (QMAT_SHIFT + 14)) / 
                                 (aanscales[i] * qscale * quant_matrix[j]));
             }
         } else {
             for(i=0;i<64;i++) {
-                const int j= s->idct_permutation[i];
+                const int j= s->dsp.idct_permutation[i];
                 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
                    So 16           <= qscale * quant_matrix[i]             <= 7905
                    so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
                    so 32768        >= (1<<19) / (qscale * quant_matrix[i]) >= 67
                 */
-                qmat  [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
+                qmat[qscale][i] = (int)((uint64_t_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
+//                qmat  [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
                 qmat16[qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
 
                 if(qmat16[qscale][i]==0 || qmat16[qscale][i]==128*256) qmat16[qscale][i]=128*256-1;
@@ -137,17 +134,9 @@ static void convert_matrix(MpegEncContext *s, int (*qmat)[64], uint16_t (*qmat16
         }
     }
 }
-// move into common.c perhaps 
-#define CHECKED_ALLOCZ(p, size)\
-{\
-    p= av_mallocz(size);\
-    if(p==NULL){\
-        perror("malloc");\
-        goto fail;\
-    }\
-}
+#endif //CONFIG_ENCODERS
 
-void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scantable){
+void ff_init_scantable(uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable){
     int i;
     int end;
     
@@ -156,7 +145,7 @@ void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scanta
     for(i=0; i<64; i++){
         int j;
         j = src_scantable[i];
-        st->permutated[i] = s->idct_permutation[j];
+        st->permutated[i] = permutation[j];
 #ifdef ARCH_POWERPC
         st->inverse[j] = i;
 #endif
@@ -171,43 +160,16 @@ void ff_init_scantable(MpegEncContext *s, ScanTable *st, const UINT8 *src_scanta
     }
 }
 
-/* XXX: those functions should be suppressed ASAP when all IDCTs are
-   converted */
-static void ff_jref_idct_put(UINT8 *dest, int line_size, DCTELEM *block)
-{
-    j_rev_dct (block);
-    put_pixels_clamped(block, dest, line_size);
-}
-static void ff_jref_idct_add(UINT8 *dest, int line_size, DCTELEM *block)
-{
-    j_rev_dct (block);
-    add_pixels_clamped(block, dest, line_size);
-}
-
 /* init common dct for both encoder and decoder */
 int DCT_common_init(MpegEncContext *s)
 {
-    int i;
-
     s->dct_unquantize_h263 = dct_unquantize_h263_c;
     s->dct_unquantize_mpeg1 = dct_unquantize_mpeg1_c;
     s->dct_unquantize_mpeg2 = dct_unquantize_mpeg2_c;
-    s->dct_quantize= dct_quantize_c;
 
-    if(s->avctx->dct_algo==FF_DCT_FASTINT)
-        s->fdct = fdct_ifast;
-    else
-        s->fdct = ff_jpeg_fdct_islow; //slow/accurate/default
-
-    if(s->avctx->idct_algo==FF_IDCT_INT){
-        s->idct_put= ff_jref_idct_put;
-        s->idct_add= ff_jref_idct_add;
-        s->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;
-    }else{ //accurate/default
-        s->idct_put= simple_idct_put;
-        s->idct_add= simple_idct_add;
-        s->idct_permutation_type= FF_NO_IDCT_PERM;
-    }
+#ifdef CONFIG_ENCODERS
+    s->dct_quantize= dct_quantize_c;
+#endif
         
 #ifdef HAVE_MMX
     MPV_common_init_mmx(s);
@@ -222,151 +184,210 @@ int DCT_common_init(MpegEncContext *s)
     MPV_common_init_mmi(s);
 #endif
 #ifdef ARCH_ARMV4L
-    MPV_common_init_armv4l();
+    MPV_common_init_armv4l(s);
 #endif
 #ifdef ARCH_POWERPC
     MPV_common_init_ppc(s);
 #endif
 
-    switch(s->idct_permutation_type){
-    case FF_NO_IDCT_PERM:
-        for(i=0; i<64; i++)
-            s->idct_permutation[i]= i;
-        break;
-    case FF_LIBMPEG2_IDCT_PERM:
-        for(i=0; i<64; i++)
-            s->idct_permutation[i]= (i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2);
-        break;
-    case FF_SIMPLE_IDCT_PERM:
-        for(i=0; i<64; i++)
-            s->idct_permutation[i]= simple_mmx_permutation[i];
-        break;
-    case FF_TRANSPOSE_IDCT_PERM:
-        for(i=0; i<64; i++)
-            s->idct_permutation[i]= ((i&7)<<3) | (i>>3);
-        break;
-    default:
-        fprintf(stderr, "Internal error, IDCT permutation not set\n");
-        return -1;
+#ifdef CONFIG_ENCODERS
+    s->fast_dct_quantize= s->dct_quantize;
+
+    if(s->flags&CODEC_FLAG_TRELLIS_QUANT){
+        s->dct_quantize= dct_quantize_trellis_c; //move before MPV_common_init_*
     }
 
+#endif //CONFIG_ENCODERS
 
     /* load & permutate scantables
        note: only wmv uses differnt ones 
     */
-    ff_init_scantable(s, &s->inter_scantable  , ff_zigzag_direct);
-    ff_init_scantable(s, &s->intra_scantable  , ff_zigzag_direct);
-    ff_init_scantable(s, &s->intra_h_scantable, ff_alternate_horizontal_scan);
-    ff_init_scantable(s, &s->intra_v_scantable, ff_alternate_vertical_scan);
+    ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable  , ff_zigzag_direct);
+    ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable  , ff_zigzag_direct);
+    ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
+    ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
+
+    s->picture_structure= PICT_FRAME;
+    
+    return 0;
+}
+
+/**
+ * allocates a Picture
+ * The pixels are allocated/set by calling get_buffer() if shared=0
+ */
+static int alloc_picture(MpegEncContext *s, Picture *pic, int shared){
+    const int big_mb_num= s->mb_stride*(s->mb_height+1) + 1; //the +1 is needed so memset(,,stride*height) doesnt sig11
+    const int mb_array_size= s->mb_stride*s->mb_height;
+    int i;
+    
+    if(shared){
+        assert(pic->data[0]);
+        assert(pic->type == 0 || pic->type == FF_BUFFER_TYPE_SHARED);
+        pic->type= FF_BUFFER_TYPE_SHARED;
+    }else{
+        int r;
+        
+        assert(!pic->data[0]);
+        
+        r= s->avctx->get_buffer(s->avctx, (AVFrame*)pic);
+        
+        if(r<0 || !pic->age || !pic->type || !pic->data[0]){
+            fprintf(stderr, "get_buffer() failed (%d %d %d %p)\n", r, pic->age, pic->type, pic->data[0]);
+            return -1;
+        }
+
+        if(s->linesize && (s->linesize != pic->linesize[0] || s->uvlinesize != pic->linesize[1])){
+            fprintf(stderr, "get_buffer() failed (stride changed)\n");
+            return -1;
+        }
 
+        if(pic->linesize[1] != pic->linesize[2]){
+            fprintf(stderr, "get_buffer() failed (uv stride missmatch)\n");
+            return -1;
+        }
+
+        s->linesize  = pic->linesize[0];
+        s->uvlinesize= pic->linesize[1];
+    }
+    
+    if(pic->qscale_table==NULL){
+        if (s->encoding) {        
+            CHECKED_ALLOCZ(pic->mb_var   , mb_array_size * sizeof(int16_t))
+            CHECKED_ALLOCZ(pic->mc_mb_var, mb_array_size * sizeof(int16_t))
+            CHECKED_ALLOCZ(pic->mb_mean  , mb_array_size * sizeof(int8_t))
+            CHECKED_ALLOCZ(pic->mb_cmp_score, mb_array_size * sizeof(int32_t))
+        }
+
+        CHECKED_ALLOCZ(pic->mbskip_table , mb_array_size * sizeof(uint8_t)+2) //the +2 is for the slice end check
+        CHECKED_ALLOCZ(pic->qscale_table , mb_array_size * sizeof(uint8_t))
+        CHECKED_ALLOCZ(pic->mb_type_base , big_mb_num    * sizeof(int))
+        pic->mb_type= pic->mb_type_base + s->mb_stride+1;
+        if(s->out_format == FMT_H264){
+            for(i=0; i<2; i++){
+                CHECKED_ALLOCZ(pic->motion_val[i], 2 * 16 * s->mb_num * sizeof(uint16_t))
+                CHECKED_ALLOCZ(pic->ref_index[i] , 4 * s->mb_num * sizeof(uint8_t))
+            }
+        }
+        pic->qstride= s->mb_stride;
+    }
+
+    //it might be nicer if the application would keep track of these but it would require a API change
+    memmove(s->prev_pict_types+1, s->prev_pict_types, PREV_PICT_TYPES_BUFFER_SIZE-1);
+    s->prev_pict_types[0]= s->pict_type;
+    if(pic->age < PREV_PICT_TYPES_BUFFER_SIZE && s->prev_pict_types[pic->age] == B_TYPE)
+        pic->age= INT_MAX; // skiped MBs in b frames are quite rare in mpeg1/2 and its a bit tricky to skip them anyway
+    
     return 0;
+fail: //for the CHECKED_ALLOCZ macro
+    return -1;
+}
+
+/**
+ * deallocates a picture
+ */
+static void free_picture(MpegEncContext *s, Picture *pic){
+    int i;
+
+    if(pic->data[0] && pic->type!=FF_BUFFER_TYPE_SHARED){
+        s->avctx->release_buffer(s->avctx, (AVFrame*)pic);
+    }
+
+    av_freep(&pic->mb_var);
+    av_freep(&pic->mc_mb_var);
+    av_freep(&pic->mb_mean);
+    av_freep(&pic->mb_cmp_score);
+    av_freep(&pic->mbskip_table);
+    av_freep(&pic->qscale_table);
+    av_freep(&pic->mb_type_base);
+    pic->mb_type= NULL;
+    for(i=0; i<2; i++){
+        av_freep(&pic->motion_val[i]);
+        av_freep(&pic->ref_index[i]);
+    }
+    
+    if(pic->type == FF_BUFFER_TYPE_SHARED){
+        for(i=0; i<4; i++){
+            pic->base[i]=
+            pic->data[i]= NULL;
+        }
+        pic->type= 0;        
+    }
 }
 
 /* init common structure for both encoder and decoder */
 int MPV_common_init(MpegEncContext *s)
 {
-    UINT8 *pict;
-    int y_size, c_size, yc_size, i;
+    int y_size, c_size, yc_size, i, mb_array_size, x, y;
 
+    dsputil_init(&s->dsp, s->avctx);
     DCT_common_init(s);
-    
+
     s->flags= s->avctx->flags;
 
-    s->mb_width = (s->width + 15) / 16;
+    s->mb_width  = (s->width  + 15) / 16;
     s->mb_height = (s->height + 15) / 16;
-    
-    y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
-    c_size = (s->mb_width + 2) * (s->mb_height + 2);
-    yc_size = y_size + 2 * c_size;
-    
+    s->mb_stride = s->mb_width + 1;
+    mb_array_size= s->mb_height * s->mb_stride;
+
     /* set default edge pos, will be overriden in decode_header if needed */
     s->h_edge_pos= s->mb_width*16;
     s->v_edge_pos= s->mb_height*16;
-    
-    /* convert fourcc to upper case */
-    s->avctx->fourcc=   toupper( s->avctx->fourcc     &0xFF)          
-                     + (toupper((s->avctx->fourcc>>8 )&0xFF)<<8 )
-                     + (toupper((s->avctx->fourcc>>16)&0xFF)<<16) 
-                     + (toupper((s->avctx->fourcc>>24)&0xFF)<<24);
 
     s->mb_num = s->mb_width * s->mb_height;
     
-    if(!(s->flags&CODEC_FLAG_DR1)){
-      s->linesize   = s->mb_width * 16 + 2 * EDGE_WIDTH;
-      s->uvlinesize = s->mb_width * 8  +     EDGE_WIDTH;
+    s->block_wrap[0]=
+    s->block_wrap[1]=
+    s->block_wrap[2]=
+    s->block_wrap[3]= s->mb_width*2 + 2;
+    s->block_wrap[4]=
+    s->block_wrap[5]= s->mb_width + 2;
 
-      for(i=0;i<3;i++) {
-        int w, h, shift, pict_start, size;
+    y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
+    c_size = (s->mb_width + 2) * (s->mb_height + 2);
+    yc_size = y_size + 2 * c_size;
 
-        w = s->linesize;
-        h = s->mb_height * 16 + 2 * EDGE_WIDTH;
-        shift = (i == 0) ? 0 : 1;
-        size = (s->linesize>>shift) * (h >> shift);
-        pict_start = (s->linesize>>shift) * (EDGE_WIDTH >> shift) + (EDGE_WIDTH >> shift);
+    /* convert fourcc to upper case */
+    s->avctx->codec_tag=   toupper( s->avctx->codec_tag     &0xFF)          
+                        + (toupper((s->avctx->codec_tag>>8 )&0xFF)<<8 )
+                        + (toupper((s->avctx->codec_tag>>16)&0xFF)<<16) 
+                        + (toupper((s->avctx->codec_tag>>24)&0xFF)<<24);
 
-        CHECKED_ALLOCZ(pict, size)
-        s->last_picture_base[i] = pict;
-        s->last_picture[i] = pict + pict_start;
-        if(i>0) memset(s->last_picture_base[i], 128, size);
-    
-        CHECKED_ALLOCZ(pict, size)
-        s->next_picture_base[i] = pict;
-        s->next_picture[i] = pict + pict_start;
-        if(i>0) memset(s->next_picture_base[i], 128, size);
-        
-        if (s->has_b_frames || s->codec_id==CODEC_ID_MPEG4) {
-        /* Note the MPEG4 stuff is here cuz of buggy encoders which dont set the low_delay flag but 
-           do low-delay encoding, so we cant allways distinguish b-frame containing streams from low_delay streams */
-            CHECKED_ALLOCZ(pict, size)
-            s->aux_picture_base[i] = pict;
-            s->aux_picture[i] = pict + pict_start;
-            if(i>0) memset(s->aux_picture_base[i], 128, size);
+    CHECKED_ALLOCZ(s->allocated_edge_emu_buffer, (s->width+64)*2*17*2); //(width + edge + align)*interlaced*MBsize*tolerance
+    s->edge_emu_buffer= s->allocated_edge_emu_buffer + (s->width+64)*2*17;
+
+    s->avctx->coded_frame= (AVFrame*)&s->current_picture;
+
+    CHECKED_ALLOCZ(s->mb_index2xy, (s->mb_num+1)*sizeof(int)) //error ressilience code looks cleaner with this
+    for(y=0; y<s->mb_height; y++){
+        for(x=0; x<s->mb_width; x++){
+            s->mb_index2xy[ x + y*s->mb_width ] = x + y*s->mb_stride;
         }
-      }
-      s->ip_buffer_count= 2;
     }
-    
-    CHECKED_ALLOCZ(s->edge_emu_buffer, (s->width+64)*2*17*2); //(width + edge + align)*interlaced*MBsize*tolerance
+    s->mb_index2xy[ s->mb_height*s->mb_width ] = (s->mb_height-1)*s->mb_stride + s->mb_width; //FIXME really needed?
     
     if (s->encoding) {
-        int j;
-        int mv_table_size= (s->mb_width+2)*(s->mb_height+2);
-        
-        CHECKED_ALLOCZ(s->mb_var   , s->mb_num * sizeof(INT16))
-        CHECKED_ALLOCZ(s->mc_mb_var, s->mb_num * sizeof(INT16))
-        CHECKED_ALLOCZ(s->mb_mean  , s->mb_num * sizeof(INT8))
+        int mv_table_size= s->mb_stride * (s->mb_height+2) + 1;
 
         /* Allocate MV tables */
-        CHECKED_ALLOCZ(s->p_mv_table            , mv_table_size * 2 * sizeof(INT16))
-        CHECKED_ALLOCZ(s->b_forw_mv_table       , mv_table_size * 2 * sizeof(INT16))
-        CHECKED_ALLOCZ(s->b_back_mv_table       , mv_table_size * 2 * sizeof(INT16))
-        CHECKED_ALLOCZ(s->b_bidir_forw_mv_table , mv_table_size * 2 * sizeof(INT16))
-        CHECKED_ALLOCZ(s->b_bidir_back_mv_table , mv_table_size * 2 * sizeof(INT16))
-        CHECKED_ALLOCZ(s->b_direct_forw_mv_table, mv_table_size * 2 * sizeof(INT16))
-        CHECKED_ALLOCZ(s->b_direct_back_mv_table, mv_table_size * 2 * sizeof(INT16))
-        CHECKED_ALLOCZ(s->b_direct_mv_table     , mv_table_size * 2 * sizeof(INT16))
-
-        CHECKED_ALLOCZ(s->me_scratchpad,  s->linesize*16*3*sizeof(uint8_t))
+        CHECKED_ALLOCZ(s->p_mv_table_base            , mv_table_size * 2 * sizeof(int16_t))
+        CHECKED_ALLOCZ(s->b_forw_mv_table_base       , mv_table_size * 2 * sizeof(int16_t))
+        CHECKED_ALLOCZ(s->b_back_mv_table_base       , mv_table_size * 2 * sizeof(int16_t))
+        CHECKED_ALLOCZ(s->b_bidir_forw_mv_table_base , mv_table_size * 2 * sizeof(int16_t))
+        CHECKED_ALLOCZ(s->b_bidir_back_mv_table_base , mv_table_size * 2 * sizeof(int16_t))
+        CHECKED_ALLOCZ(s->b_direct_mv_table_base     , mv_table_size * 2 * sizeof(int16_t))
+        s->p_mv_table           = s->p_mv_table_base            + s->mb_stride + 1;
+        s->b_forw_mv_table      = s->b_forw_mv_table_base       + s->mb_stride + 1;
+        s->b_back_mv_table      = s->b_back_mv_table_base       + s->mb_stride + 1;
+        s->b_bidir_forw_mv_table= s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
+        s->b_bidir_back_mv_table= s->b_bidir_back_mv_table_base + s->mb_stride + 1;
+        s->b_direct_mv_table    = s->b_direct_mv_table_base     + s->mb_stride + 1;
+
+        //FIXME should be linesize instead of s->width*2 but that isnt known before get_buffer()
+        CHECKED_ALLOCZ(s->me.scratchpad,  s->width*2*16*3*sizeof(uint8_t)) 
         
-        CHECKED_ALLOCZ(s->me_map      , ME_MAP_SIZE*sizeof(uint32_t))
-        CHECKED_ALLOCZ(s->me_score_map, ME_MAP_SIZE*sizeof(uint16_t))
-
-        if(s->max_b_frames){
-            for(j=0; j<REORDER_BUFFER_SIZE; j++){
-                int i;
-                for(i=0;i<3;i++) {
-                    int w, h, shift, size;
-
-                    w = s->linesize;
-                    h = s->mb_height * 16;
-                    shift = (i == 0) ? 0 : 1;
-                    size = (w >> shift) * (h >> shift);
-
-                    CHECKED_ALLOCZ(pict, size);
-                    s->picture_buffer[j][i] = pict;
-                }
-            }
-        }
+        CHECKED_ALLOCZ(s->me.map      , ME_MAP_SIZE*sizeof(uint32_t))
+        CHECKED_ALLOCZ(s->me.score_map, ME_MAP_SIZE*sizeof(uint32_t))
 
         if(s->codec_id==CODEC_ID_MPEG4){
             CHECKED_ALLOCZ(s->tex_pb_buffer, PB_BUFFER_SIZE);
@@ -377,31 +398,29 @@ int MPV_common_init(MpegEncContext *s)
             CHECKED_ALLOCZ(s->ac_stats, 2*2*(MAX_LEVEL+1)*(MAX_RUN+1)*2*sizeof(int));
         }
         CHECKED_ALLOCZ(s->avctx->stats_out, 256);
+
+        /* Allocate MB type table */
+        CHECKED_ALLOCZ(s->mb_type  , mb_array_size * sizeof(uint8_t)) //needed for encoding
     }
         
-    CHECKED_ALLOCZ(s->error_status_table, s->mb_num*sizeof(UINT8))
+    CHECKED_ALLOCZ(s->error_status_table, mb_array_size*sizeof(uint8_t))
     
     if (s->out_format == FMT_H263 || s->encoding) {
         int size;
-        /* Allocate MB type table */
-        CHECKED_ALLOCZ(s->mb_type  , s->mb_num * sizeof(UINT8))
 
         /* MV prediction */
         size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
-        CHECKED_ALLOCZ(s->motion_val, size * 2 * sizeof(INT16));
+        CHECKED_ALLOCZ(s->motion_val, size * 2 * sizeof(int16_t));
     }
 
     if(s->codec_id==CODEC_ID_MPEG4){
         /* interlaced direct mode decoding tables */
-        CHECKED_ALLOCZ(s->field_mv_table, s->mb_num*2*2 * sizeof(INT16))
-        CHECKED_ALLOCZ(s->field_select_table, s->mb_num*2* sizeof(INT8))
+        CHECKED_ALLOCZ(s->field_mv_table, mb_array_size*2*2 * sizeof(int16_t))
+        CHECKED_ALLOCZ(s->field_select_table, mb_array_size*2* sizeof(int8_t))
     }
-    /* 4mv b frame decoding table */
-    //note this is needed for h263 without b frames too (segfault on damaged streams otherwise)
-    CHECKED_ALLOCZ(s->co_located_type_table, s->mb_num * sizeof(UINT8))
     if (s->out_format == FMT_H263) {
         /* ac values */
-        CHECKED_ALLOCZ(s->ac_val[0], yc_size * sizeof(INT16) * 16);
+        CHECKED_ALLOCZ(s->ac_val[0], yc_size * sizeof(int16_t) * 16);
         s->ac_val[1] = s->ac_val[0] + y_size;
         s->ac_val[2] = s->ac_val[1] + c_size;
         
@@ -410,38 +429,33 @@ int MPV_common_init(MpegEncContext *s)
         
         /* divx501 bitstream reorder buffer */
         CHECKED_ALLOCZ(s->bitstream_buffer, BITSTREAM_BUFFER_SIZE);
-        
+
         /* cbp, ac_pred, pred_dir */
-        CHECKED_ALLOCZ(s->cbp_table  , s->mb_num * sizeof(UINT8))
-        CHECKED_ALLOCZ(s->pred_dir_table, s->mb_num * sizeof(UINT8))
+        CHECKED_ALLOCZ(s->cbp_table  , mb_array_size * sizeof(uint8_t))
+        CHECKED_ALLOCZ(s->pred_dir_table, mb_array_size * sizeof(uint8_t))
     }
     
     if (s->h263_pred || s->h263_plus || !s->encoding) {
         /* dc values */
         //MN: we need these for error resilience of intra-frames
-        CHECKED_ALLOCZ(s->dc_val[0], yc_size * sizeof(INT16));
+        CHECKED_ALLOCZ(s->dc_val[0], yc_size * sizeof(int16_t));
         s->dc_val[1] = s->dc_val[0] + y_size;
         s->dc_val[2] = s->dc_val[1] + c_size;
         for(i=0;i<yc_size;i++)
             s->dc_val[0][i] = 1024;
     }
 
-    CHECKED_ALLOCZ(s->next_qscale_table  , s->mb_num * sizeof(UINT8))
-    CHECKED_ALLOCZ(s->last_qscale_table  , s->mb_num * sizeof(UINT8))
-    CHECKED_ALLOCZ(s->aux_qscale_table   , s->mb_num * sizeof(UINT8))
-    s->qscale_table= s->next_qscale_table;
-    s->avctx->qstride= s->mb_width;
-    
     /* which mb is a intra block */
-    CHECKED_ALLOCZ(s->mbintra_table, s->mb_num);
-    memset(s->mbintra_table, 1, s->mb_num);
+    CHECKED_ALLOCZ(s->mbintra_table, mb_array_size);
+    memset(s->mbintra_table, 1, mb_array_size);
     
     /* default structure is frame */
     s->picture_structure = PICT_FRAME;
     
     /* init macroblock skip table */
-    CHECKED_ALLOCZ(s->mbskip_table, s->mb_num+1);
+    CHECKED_ALLOCZ(s->mbskip_table, mb_array_size+2);
     //Note the +1 is for a quicker mpeg4 slice_end detection
+    CHECKED_ALLOCZ(s->prev_pict_types, PREV_PICT_TYPES_BUFFER_SIZE);
     
     s->block= s->blocks[0];
 
@@ -462,18 +476,23 @@ void MPV_common_end(MpegEncContext *s)
 {
     int i;
 
+    av_freep(&s->parse_context.buffer);
+    s->parse_context.buffer_size=0;
+
     av_freep(&s->mb_type);
-    av_freep(&s->mb_var);
-    av_freep(&s->mc_mb_var);
-    av_freep(&s->mb_mean);
-    av_freep(&s->p_mv_table);
-    av_freep(&s->b_forw_mv_table);
-    av_freep(&s->b_back_mv_table);
-    av_freep(&s->b_bidir_forw_mv_table);
-    av_freep(&s->b_bidir_back_mv_table);
-    av_freep(&s->b_direct_forw_mv_table);
-    av_freep(&s->b_direct_back_mv_table);
-    av_freep(&s->b_direct_mv_table);
+    av_freep(&s->p_mv_table_base);
+    av_freep(&s->b_forw_mv_table_base);
+    av_freep(&s->b_back_mv_table_base);
+    av_freep(&s->b_bidir_forw_mv_table_base);
+    av_freep(&s->b_bidir_back_mv_table_base);
+    av_freep(&s->b_direct_mv_table_base);
+    s->p_mv_table= NULL;
+    s->b_forw_mv_table= NULL;
+    s->b_back_mv_table= NULL;
+    s->b_bidir_forw_mv_table= NULL;
+    s->b_bidir_back_mv_table= NULL;
+    s->b_direct_mv_table= NULL;
+    
     av_freep(&s->motion_val);
     av_freep(&s->dc_val[0]);
     av_freep(&s->ac_val[0]);
@@ -481,57 +500,41 @@ void MPV_common_end(MpegEncContext *s)
     av_freep(&s->mbintra_table);
     av_freep(&s->cbp_table);
     av_freep(&s->pred_dir_table);
-    av_freep(&s->next_qscale_table);
-    av_freep(&s->last_qscale_table);
-    av_freep(&s->aux_qscale_table);
-    av_freep(&s->me_scratchpad);
-    av_freep(&s->me_map);
-    av_freep(&s->me_score_map);
+    av_freep(&s->me.scratchpad);
+    av_freep(&s->me.map);
+    av_freep(&s->me.score_map);
     
     av_freep(&s->mbskip_table);
+    av_freep(&s->prev_pict_types);
     av_freep(&s->bitstream_buffer);
     av_freep(&s->tex_pb_buffer);
     av_freep(&s->pb2_buffer);
-    av_freep(&s->edge_emu_buffer);
-    av_freep(&s->co_located_type_table);
+    av_freep(&s->allocated_edge_emu_buffer); s->edge_emu_buffer= NULL;
     av_freep(&s->field_mv_table);
     av_freep(&s->field_select_table);
     av_freep(&s->avctx->stats_out);
     av_freep(&s->ac_stats);
     av_freep(&s->error_status_table);
-    
-    for(i=0;i<3;i++) {
-        int j;
-        if(!(s->flags&CODEC_FLAG_DR1)){
-            av_freep(&s->last_picture_base[i]);
-            av_freep(&s->next_picture_base[i]);
-            av_freep(&s->aux_picture_base[i]);
-        }
-        s->last_picture_base[i]=
-        s->next_picture_base[i]=
-        s->aux_picture_base [i] = NULL;
-        s->last_picture[i]=
-        s->next_picture[i]=
-        s->aux_picture [i] = NULL;
+    av_freep(&s->mb_index2xy);
 
-        for(j=0; j<REORDER_BUFFER_SIZE; j++){
-            av_freep(&s->picture_buffer[j][i]);
-        }
+    for(i=0; i<MAX_PICTURE_COUNT; i++){
+        free_picture(s, &s->picture[i]);
     }
+    avcodec_default_free_buffers(s->avctx);
     s->context_initialized = 0;
 }
 
+#ifdef CONFIG_ENCODERS
+
 /* init video encoder */
 int MPV_encode_init(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
     int i;
-
-    avctx->pix_fmt = PIX_FMT_YUV420P;
+    int chroma_h_shift, chroma_v_shift;
 
     s->bit_rate = avctx->bit_rate;
     s->bit_rate_tolerance = avctx->bit_rate_tolerance;
-    s->frame_rate = avctx->frame_rate;
     s->width = avctx->width;
     s->height = avctx->height;
     if(avctx->gop_size > 600){
@@ -543,18 +546,10 @@ int MPV_encode_init(AVCodecContext *avctx)
     s->rtp_payload_size = avctx->rtp_payload_size;
     if (avctx->rtp_callback)
         s->rtp_callback = avctx->rtp_callback;
-    s->qmin= avctx->qmin;
-    s->qmax= avctx->qmax;
     s->max_qdiff= avctx->max_qdiff;
     s->qcompress= avctx->qcompress;
     s->qblur= avctx->qblur;
     s->avctx = avctx;
-    s->aspect_ratio_info= avctx->aspect_ratio_info;
-    if (avctx->aspect_ratio_info == FF_ASPECT_EXTENDED)
-    {
-       s->aspected_width = avctx->aspected_width;
-       s->aspected_height = avctx->aspected_height;
-    }
     s->flags= avctx->flags;
     s->max_b_frames= avctx->max_b_frames;
     s->b_frame_strategy= avctx->b_frame_strategy;
@@ -563,6 +558,7 @@ int MPV_encode_init(AVCodecContext *avctx)
     s->chroma_elim_threshold= avctx->chroma_elim_threshold;
     s->strict_std_compliance= avctx->strict_std_compliance;
     s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
+    s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
     s->mpeg_quant= avctx->mpeg_quant;
 
     if (s->gop_size <= 1) {
@@ -572,12 +568,7 @@ int MPV_encode_init(AVCodecContext *avctx)
         s->intra_only = 0;
     }
 
-    /* ME algorithm */
-    if (avctx->me_method == 0)
-        /* For compatibility */
-        s->me_method = motion_estimation_method;
-    else
-        s->me_method = avctx->me_method;
+    s->me_method = avctx->me_method;
 
     /* Fixed QSCALE */
     s->fixed_qscale = (avctx->flags & CODEC_FLAG_QSCALE);
@@ -591,26 +582,73 @@ int MPV_encode_init(AVCodecContext *avctx)
     
     s->progressive_sequence= !(avctx->flags & CODEC_FLAG_INTERLACED_DCT);
 
+    if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4){
+        fprintf(stderr, "4MV not supporetd by codec\n");
+        return -1;
+    }
+    
+    if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
+        fprintf(stderr, "qpel not supporetd by codec\n");
+        return -1;
+    }
+
+    if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
+        fprintf(stderr, "data partitioning not supporetd by codec\n");
+        return -1;
+    }
+    
+    if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO){
+        fprintf(stderr, "b frames not supporetd by codec\n");
+        return -1;
+    }
+    
+    if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
+        fprintf(stderr, "mpeg2 style quantization not supporetd by codec\n");
+        return -1;
+    }
+        
+    if(s->codec_id==CODEC_ID_MJPEG){
+        s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
+        s->inter_quant_bias= 0;
+    }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO){
+        s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
+        s->inter_quant_bias= 0;
+    }else{
+        s->intra_quant_bias=0;
+        s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
+    }
+    
+    if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
+        s->intra_quant_bias= avctx->intra_quant_bias;
+    if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
+        s->inter_quant_bias= avctx->inter_quant_bias;
+        
+    avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
+
     switch(avctx->codec->id) {
     case CODEC_ID_MPEG1VIDEO:
         s->out_format = FMT_MPEG1;
-        avctx->delay=0; //FIXME not sure, should check the spec
+        s->low_delay= 0; //s->max_b_frames ? 0 : 1;
+        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
         break;
+    case CODEC_ID_LJPEG:
     case CODEC_ID_MJPEG:
         s->out_format = FMT_MJPEG;
         s->intra_only = 1; /* force intra only for jpeg */
         s->mjpeg_write_tables = 1; /* write all tables */
        s->mjpeg_data_only_frames = 0; /* write all the needed headers */
-        s->mjpeg_vsample[0] = 2; /* set up default sampling factors */
-        s->mjpeg_vsample[1] = 1; /* the only currently supported values */
+        s->mjpeg_vsample[0] = 1<<chroma_v_shift;
+        s->mjpeg_vsample[1] = 1;
         s->mjpeg_vsample[2] = 1; 
-        s->mjpeg_hsample[0] = 2;
+        s->mjpeg_hsample[0] = 1<<chroma_h_shift;
         s->mjpeg_hsample[1] = 1; 
         s->mjpeg_hsample[2] = 1; 
         if (mjpeg_init(s) < 0)
             return -1;
         avctx->delay=0;
+        s->low_delay=1;
         break;
+#ifdef CONFIG_RISKY
     case CODEC_ID_H263:
         if (h263_get_picture_format(s->width, s->height) == 7) {
             printf("Input picture size isn't suitable for h263 codec! try h263+\n");
@@ -618,29 +656,39 @@ int MPV_encode_init(AVCodecContext *avctx)
         }
         s->out_format = FMT_H263;
         avctx->delay=0;
+        s->low_delay=1;
         break;
     case CODEC_ID_H263P:
         s->out_format = FMT_H263;
         s->h263_plus = 1;
-        s->unrestricted_mv = 1;
-        s->h263_aic = 1;
-        
+       /* Fx */
+       s->unrestricted_mv=(avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
+       s->h263_aic= (avctx->flags & CODEC_FLAG_H263P_AIC) ? 1:0;
+       /* /Fx */
         /* These are just to be sure */
-        s->umvplus = 0;
-        s->umvplus_dec = 0;
+        s->umvplus = 1;
+        avctx->delay=0;
+        s->low_delay=1;
+        break;
+    case CODEC_ID_FLV1:
+        s->out_format = FMT_H263;
+        s->h263_flv = 2; /* format = 1; 11-bit codes */
+        s->unrestricted_mv = 1;
+        s->rtp_mode=0; /* don't allow GOB */
         avctx->delay=0;
+        s->low_delay=1;
         break;
     case CODEC_ID_RV10:
         s->out_format = FMT_H263;
         s->h263_rv10 = 1;
         avctx->delay=0;
+        s->low_delay=1;
         break;
     case CODEC_ID_MPEG4:
         s->out_format = FMT_H263;
         s->h263_pred = 1;
         s->unrestricted_mv = 1;
-        s->has_b_frames= s->max_b_frames ? 1 : 0;
-        s->low_delay= !s->has_b_frames;
+        s->low_delay= s->max_b_frames ? 0 : 1;
         avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
         break;
     case CODEC_ID_MSMPEG4V1:
@@ -650,6 +698,7 @@ int MPV_encode_init(AVCodecContext *avctx)
         s->unrestricted_mv = 1;
         s->msmpeg4_version= 1;
         avctx->delay=0;
+        s->low_delay=1;
         break;
     case CODEC_ID_MSMPEG4V2:
         s->out_format = FMT_H263;
@@ -658,6 +707,7 @@ int MPV_encode_init(AVCodecContext *avctx)
         s->unrestricted_mv = 1;
         s->msmpeg4_version= 2;
         avctx->delay=0;
+        s->low_delay=1;
         break;
     case CODEC_ID_MSMPEG4V3:
         s->out_format = FMT_H263;
@@ -665,7 +715,9 @@ int MPV_encode_init(AVCodecContext *avctx)
         s->h263_pred = 1;
         s->unrestricted_mv = 1;
         s->msmpeg4_version= 3;
+        s->flipflop_rounding=1;
         avctx->delay=0;
+        s->low_delay=1;
         break;
     case CODEC_ID_WMV1:
         s->out_format = FMT_H263;
@@ -673,7 +725,9 @@ int MPV_encode_init(AVCodecContext *avctx)
         s->h263_pred = 1;
         s->unrestricted_mv = 1;
         s->msmpeg4_version= 4;
+        s->flipflop_rounding=1;
         avctx->delay=0;
+        s->low_delay=1;
         break;
     case CODEC_ID_WMV2:
         s->out_format = FMT_H263;
@@ -681,8 +735,11 @@ int MPV_encode_init(AVCodecContext *avctx)
         s->h263_pred = 1;
         s->unrestricted_mv = 1;
         s->msmpeg4_version= 5;
+        s->flipflop_rounding=1;
         avctx->delay=0;
+        s->low_delay=1;
         break;
+#endif
     default:
         return -1;
     }
@@ -693,22 +750,23 @@ int MPV_encode_init(AVCodecContext *avctx)
             int i;
             done=1;
 
-            default_mv_penalty= av_mallocz( sizeof(UINT16)*(MAX_FCODE+1)*(2*MAX_MV+1) );
-            memset(default_mv_penalty, 0, sizeof(UINT16)*(MAX_FCODE+1)*(2*MAX_MV+1));
-            memset(default_fcode_tab , 0, sizeof(UINT8)*(2*MAX_MV+1));
+            default_mv_penalty= av_mallocz( sizeof(uint8_t)*(MAX_FCODE+1)*(2*MAX_MV+1) );
+            memset(default_mv_penalty, 0, sizeof(uint8_t)*(MAX_FCODE+1)*(2*MAX_MV+1));
+            memset(default_fcode_tab , 0, sizeof(uint8_t)*(2*MAX_MV+1));
 
             for(i=-16; i<16; i++){
                 default_fcode_tab[i + MAX_MV]= 1;
             }
         }
     }
-    s->mv_penalty= default_mv_penalty;
+    s->me.mv_penalty= default_mv_penalty;
     s->fcode_tab= default_fcode_tab;
     s->y_dc_scale_table=
     s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
  
     /* dont use mv_penalty table for crap MV as it would be confused */
-    if (s->me_method < ME_EPZS) s->mv_penalty = default_mv_penalty;
+    //FIXME remove after fixing / removing old ME
+    if (s->me_method < ME_EPZS) s->me.mv_penalty = default_mv_penalty;
 
     s->encoding = 1;
 
@@ -716,25 +774,32 @@ int MPV_encode_init(AVCodecContext *avctx)
     if (MPV_common_init(s) < 0)
         return -1;
     
+    ff_init_me(s);
+
 #ifdef CONFIG_ENCODERS
+#ifdef CONFIG_RISKY
     if (s->out_format == FMT_H263)
         h263_encode_init(s);
-    else if (s->out_format == FMT_MPEG1)
-        ff_mpeg1_encode_init(s);
     if(s->msmpeg4_version)
         ff_msmpeg4_encode_init(s);
 #endif
+    if (s->out_format == FMT_MPEG1)
+        ff_mpeg1_encode_init(s);
+#endif
 
     /* init default q matrix */
     for(i=0;i<64;i++) {
-        int j= s->idct_permutation[i];
+        int j= s->dsp.idct_permutation[i];
+#ifdef CONFIG_RISKY
         if(s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
             s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
             s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
         }else if(s->out_format == FMT_H263){
             s->intra_matrix[j] =
             s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
-        }else{ /* mpeg1 */
+        }else
+#endif
+        { /* mpeg1 */
             s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
             s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
         }
@@ -779,11 +844,51 @@ int MPV_encode_end(AVCodecContext *avctx)
     return 0;
 }
 
+#endif //CONFIG_ENCODERS
+
+void init_rl(RLTable *rl)
+{
+    int8_t max_level[MAX_RUN+1], max_run[MAX_LEVEL+1];
+    uint8_t index_run[MAX_RUN+1];
+    int last, run, level, start, end, i;
+
+    /* compute max_level[], max_run[] and index_run[] */
+    for(last=0;last<2;last++) {
+        if (last == 0) {
+            start = 0;
+            end = rl->last;
+        } else {
+            start = rl->last;
+            end = rl->n;
+        }
+
+        memset(max_level, 0, MAX_RUN + 1);
+        memset(max_run, 0, MAX_LEVEL + 1);
+        memset(index_run, rl->n, MAX_RUN + 1);
+        for(i=start;i<end;i++) {
+            run = rl->table_run[i];
+            level = rl->table_level[i];
+            if (index_run[run] == rl->n)
+                index_run[run] = i;
+            if (level > max_level[run])
+                max_level[run] = level;
+            if (run > max_run[level])
+                max_run[level] = run;
+        }
+        rl->max_level[last] = av_malloc(MAX_RUN + 1);
+        memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
+        rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
+        memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
+        rl->index_run[last] = av_malloc(MAX_RUN + 1);
+        memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
+    }
+}
+
 /* draw the edges of width 'w' of an image of size width, height */
 //FIXME check that this is ok for mpeg4 interlaced
-static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w)
+static void draw_edges_c(uint8_t *buf, int wrap, int width, int height, int w)
 {
-    UINT8 *ptr, *last_line;
+    uint8_t *ptr, *last_line;
     int i;
 
     last_line = buf + (height - 1) * wrap;
@@ -808,70 +913,111 @@ static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w)
     }
 }
 
+static int find_unused_picture(MpegEncContext *s, int shared){
+    int i;
+    
+    if(shared){
+        for(i=0; i<MAX_PICTURE_COUNT; i++){
+            if(s->picture[i].data[0]==NULL && s->picture[i].type==0) break;
+        }
+    }else{
+        for(i=0; i<MAX_PICTURE_COUNT; i++){
+            if(s->picture[i].data[0]==NULL && s->picture[i].type!=0) break; //FIXME
+        }
+        for(i=0; i<MAX_PICTURE_COUNT; i++){
+            if(s->picture[i].data[0]==NULL) break;
+        }
+    }
+
+    assert(i<MAX_PICTURE_COUNT);
+    return i;
+}
+
 /* generic function for encode/decode called before a frame is coded/decoded */
 int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
 {
     int i;
-    UINT8 *tmp;
+    AVFrame *pic;
 
     s->mb_skiped = 0;
-    avctx->mbskip_table= s->mbskip_table;
 
-    if(avctx->flags&CODEC_FLAG_DR1){
-        if(avctx->get_buffer_callback(avctx, s->width, s->height, s->pict_type) < 0){
-            fprintf(stderr, "get_buffer() failed\n");
-            return -1;
-        }
+    assert(s->last_picture_ptr==NULL || s->out_format != FMT_H264 || s->codec_id == CODEC_ID_SVQ3);
 
-        s->linesize  = avctx->dr_stride;
-        s->uvlinesize= avctx->dr_uvstride;
-        s->ip_buffer_count= avctx->dr_ip_buffer_count;
-    }
-    avctx->dr_ip_buffer_count= s->ip_buffer_count;
-    
-    if (s->pict_type == B_TYPE) {
-        for(i=0;i<3;i++) {
-            if(avctx->flags&CODEC_FLAG_DR1)
-                s->aux_picture[i]= avctx->dr_buffer[i];
-            
-            //FIXME the following should never be needed, the decoder should drop b frames if no reference is available
-            if(s->next_picture[i]==NULL)
-                s->next_picture[i]= s->aux_picture[i];
-            if(s->last_picture[i]==NULL)
-                s->last_picture[i]= s->next_picture[i];
+    /* mark&release old frames */
+    if (s->pict_type != B_TYPE && s->last_picture_ptr) {
+        avctx->release_buffer(avctx, (AVFrame*)s->last_picture_ptr);
 
-            s->current_picture[i] = s->aux_picture[i];
+        /* release forgotten pictures */
+        /* if(mpeg124/h263) */
+        if(!s->encoding){
+            for(i=0; i<MAX_PICTURE_COUNT; i++){
+                if(s->picture[i].data[0] && &s->picture[i] != s->next_picture_ptr && s->picture[i].reference){
+                    fprintf(stderr, "releasing zombie picture\n");
+                    avctx->release_buffer(avctx, (AVFrame*)&s->picture[i]);                
+                }
+            }
         }
-        s->avctx->display_qscale_table=
-        s->avctx->current_qscale_table= 
-        s->qscale_table= s->aux_qscale_table;
-    } else {
-        for(i=0;i<3;i++) {
-            /* swap next and last */
-            if(avctx->flags&CODEC_FLAG_DR1)
-                tmp= avctx->dr_buffer[i];
-            else
-                tmp = s->last_picture[i];
+    }
+alloc:
+    if(!s->encoding){
+        /* release non refernce frames */
+        for(i=0; i<MAX_PICTURE_COUNT; i++){
+            if(s->picture[i].data[0] && !s->picture[i].reference /*&& s->picture[i].type!=FF_BUFFER_TYPE_SHARED*/){
+                s->avctx->release_buffer(s->avctx, (AVFrame*)&s->picture[i]);
+            }
+        }
+
+        i= find_unused_picture(s, 0);
+    
+        pic= (AVFrame*)&s->picture[i];
+        pic->reference= s->pict_type != B_TYPE ? 3 : 0;
 
-            s->last_picture[i] = s->next_picture[i];
-            s->next_picture[i] = tmp;
-            s->current_picture[i] = tmp;
+        if(s->current_picture_ptr)
+            pic->coded_picture_number= s->current_picture_ptr->coded_picture_number+1;
+        
+        alloc_picture(s, (Picture*)pic, 0);
 
-            if(s->last_picture[i]==NULL)
-                s->last_picture[i]= s->next_picture[i];
+        s->current_picture_ptr= &s->picture[i];
+    }
 
-            s->last_dr_opaque= s->next_dr_opaque;
-            s->next_dr_opaque= avctx->dr_opaque_frame;
+    s->current_picture_ptr->pict_type= s->pict_type;
+    s->current_picture_ptr->quality= s->qscale;
+    s->current_picture_ptr->key_frame= s->pict_type == I_TYPE;
 
-            if(s->has_b_frames && s->last_dr_opaque && s->codec_id!=CODEC_ID_SVQ1)
-                avctx->dr_opaque_frame= s->last_dr_opaque;
-            else
-                avctx->dr_opaque_frame= s->next_dr_opaque;
+    s->current_picture= *s->current_picture_ptr;
+  
+  if(s->out_format != FMT_H264 || s->codec_id == CODEC_ID_SVQ3){
+    if (s->pict_type != B_TYPE) {
+        s->last_picture_ptr= s->next_picture_ptr;
+        s->next_picture_ptr= s->current_picture_ptr;
+    }
+    
+    if(s->last_picture_ptr) s->last_picture= *s->last_picture_ptr;
+    if(s->next_picture_ptr) s->next_picture= *s->next_picture_ptr;
+    if(s->new_picture_ptr ) s->new_picture = *s->new_picture_ptr;
+    
+    if(s->picture_structure!=PICT_FRAME){
+        int i;
+        for(i=0; i<4; i++){
+            if(s->picture_structure == PICT_BOTTOM_FIELD){
+                 s->current_picture.data[i] += s->current_picture.linesize[i];
+            } 
+            s->current_picture.linesize[i] *= 2;
+            s->last_picture.linesize[i] *=2;
+            s->next_picture.linesize[i] *=2;
         }
-        s->avctx->current_qscale_table= s->qscale_table      = s->last_qscale_table;
-        s->avctx->display_qscale_table= s->last_qscale_table = s->next_qscale_table;
-        s->next_qscale_table= s->qscale_table;
     }
+    
+    if(s->pict_type != I_TYPE && s->last_picture_ptr==NULL){
+        fprintf(stderr, "warning: first frame is no keyframe\n");
+        assert(s->pict_type != B_TYPE); //these should have been dropped if we dont have a reference
+        goto alloc;
+    }
+  }
+   
+    s->hurry_up= s->avctx->hurry_up;
+    s->error_resilience= avctx->error_resilience;
+
     /* set dequantizer, we cant do it during init as it might change for mpeg4
        and we cant do it in the header decode as init isnt called for mpeg4 there yet */
     if(s->out_format == FMT_H263){
@@ -888,154 +1034,514 @@ int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
 /* generic function for encode/decode called after a frame has been coded/decoded */
 void MPV_frame_end(MpegEncContext *s)
 {
-    s->avctx->key_frame   = (s->pict_type == I_TYPE);
-    s->avctx->pict_type   = s->pict_type;
-
+    int i;
     /* draw edge for correct motion prediction if outside */
-    if (s->pict_type != B_TYPE && !s->intra_only && !(s->flags&CODEC_FLAG_EMU_EDGE)) {
-        draw_edges(s->current_picture[0], s->linesize  , s->h_edge_pos   , s->v_edge_pos   , EDGE_WIDTH  );
-        draw_edges(s->current_picture[1], s->uvlinesize, s->h_edge_pos>>1, s->v_edge_pos>>1, EDGE_WIDTH/2);
-        draw_edges(s->current_picture[2], s->uvlinesize, s->h_edge_pos>>1, s->v_edge_pos>>1, EDGE_WIDTH/2);
+    if(s->codec_id!=CODEC_ID_SVQ1 && s->codec_id != CODEC_ID_MPEG1VIDEO){
+        if (s->pict_type != B_TYPE && !s->intra_only && !(s->flags&CODEC_FLAG_EMU_EDGE)) {
+            draw_edges(s->current_picture.data[0], s->linesize  , s->h_edge_pos   , s->v_edge_pos   , EDGE_WIDTH  );
+            draw_edges(s->current_picture.data[1], s->uvlinesize, s->h_edge_pos>>1, s->v_edge_pos>>1, EDGE_WIDTH/2);
+            draw_edges(s->current_picture.data[2], s->uvlinesize, s->h_edge_pos>>1, s->v_edge_pos>>1, EDGE_WIDTH/2);
+        }
     }
     emms_c();
     
     s->last_pict_type    = s->pict_type;
     if(s->pict_type!=B_TYPE){
         s->last_non_b_pict_type= s->pict_type;
-        s->num_available_buffers++;
-        if(s->num_available_buffers>2) s->num_available_buffers= 2;
     }
+#if 0
+        /* copy back current_picture variables */
+    for(i=0; i<MAX_PICTURE_COUNT; i++){
+        if(s->picture[i].data[0] == s->current_picture.data[0]){
+            s->picture[i]= s->current_picture;
+            break;
+        }    
+    }
+    assert(i<MAX_PICTURE_COUNT);
+#endif    
+
+    if(s->encoding){
+        /* release non refernce frames */
+        for(i=0; i<MAX_PICTURE_COUNT; i++){
+            if(s->picture[i].data[0] && !s->picture[i].reference /*&& s->picture[i].type!=FF_BUFFER_TYPE_SHARED*/){
+                s->avctx->release_buffer(s->avctx, (AVFrame*)&s->picture[i]);
+            }
+        }
+    }
+    // clear copies, to avoid confusion
+#if 0
+    memset(&s->last_picture, 0, sizeof(Picture));
+    memset(&s->next_picture, 0, sizeof(Picture));
+    memset(&s->current_picture, 0, sizeof(Picture));
+#endif
 }
 
-/* reorder input for encoding */
-void reorder_input(MpegEncContext *s, AVPicture *pict)
-{
-    int i, j, index;
-            
-    if(s->max_b_frames > FF_MAX_B_FRAMES) s->max_b_frames= FF_MAX_B_FRAMES;
-
-//        delay= s->max_b_frames+1; (or 0 if no b frames cuz decoder diff)
-
-    for(j=0; j<REORDER_BUFFER_SIZE-1; j++){
-        s->coded_order[j]= s->coded_order[j+1];
-    }
-    s->coded_order[j].picture[0]= s->coded_order[j].picture[1]= s->coded_order[j].picture[2]= NULL; //catch uninitalized buffers
-    s->coded_order[j].pict_type=0;
-
-    switch(s->input_pict_type){
-    default: 
-    case I_TYPE:
-    case S_TYPE:
-    case P_TYPE:
-        index= s->max_b_frames - s->b_frames_since_non_b;
-        s->b_frames_since_non_b=0;
-        break;            
-    case B_TYPE:
-        index= s->max_b_frames + 1;
-        s->b_frames_since_non_b++;
-        break;          
-    }
-//printf("index:%d type:%d strides: %d %d\n", index, s->input_pict_type, pict->linesize[0], s->linesize);
-    if(   (index==0 || (s->flags&CODEC_FLAG_INPUT_PRESERVED))
-       && pict->linesize[0] == s->linesize
-       && pict->linesize[1] == s->uvlinesize
-       && pict->linesize[2] == s->uvlinesize){
-//printf("ptr\n");
-        for(i=0; i<3; i++){
-            s->coded_order[index].picture[i]= pict->data[i];
+/**
+ * draws an line from (ex, ey) -> (sx, sy).
+ * @param w width of the image
+ * @param h height of the image
+ * @param stride stride/linesize of the image
+ * @param color color of the arrow
+ */
+static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color){
+    int t, x, y, f;
+    
+    sx= clip(sx, 0, w-1);
+    sy= clip(sy, 0, h-1);
+    ex= clip(ex, 0, w-1);
+    ey= clip(ey, 0, h-1);
+    
+    buf[sy*stride + sx]+= color;
+    
+    if(ABS(ex - sx) > ABS(ey - sy)){
+        if(sx > ex){
+            t=sx; sx=ex; ex=t;
+            t=sy; sy=ey; ey=t;
+        }
+        buf+= sx + sy*stride;
+        ex-= sx;
+        f= ((ey-sy)<<16)/ex;
+        for(x= 0; x <= ex; x++){
+            y= ((x*f) + (1<<15))>>16;
+            buf[y*stride + x]+= color;
         }
     }else{
-//printf("copy\n");
-        for(i=0; i<3; i++){
-            uint8_t *src = pict->data[i];
-            uint8_t *dest;
-            int src_wrap = pict->linesize[i];
-            int dest_wrap = s->linesize;
-            int w = s->width;
-            int h = s->height;
-
-            if(index==0) dest= s->last_picture[i]+16; //is current_picture indeed but the switch hapens after reordering
-            else         dest= s->picture_buffer[s->picture_buffer_index][i];
-
-            if (i >= 1) {
-                dest_wrap >>= 1;
-                w >>= 1;
-                h >>= 1;
-            }
+        if(sy > ey){
+            t=sx; sx=ex; ex=t;
+            t=sy; sy=ey; ey=t;
+        }
+        buf+= sx + sy*stride;
+        ey-= sy;
+        if(ey) f= ((ex-sx)<<16)/ey;
+        else   f= 0;
+        for(y= 0; y <= ey; y++){
+            x= ((y*f) + (1<<15))>>16;
+            buf[y*stride + x]+= color;
+        }
+    }
+}
+
+/**
+ * draws an arrow from (ex, ey) -> (sx, sy).
+ * @param w width of the image
+ * @param h height of the image
+ * @param stride stride/linesize of the image
+ * @param color color of the arrow
+ */
+static void draw_arrow(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color){ 
+    int dx,dy;
+
+    sx= clip(sx, -100, w+100);
+    sy= clip(sy, -100, h+100);
+    ex= clip(ex, -100, w+100);
+    ey= clip(ey, -100, h+100);
+    
+    dx= ex - sx;
+    dy= ey - sy;
+    
+    if(dx*dx + dy*dy > 3*3){
+        int rx=  dx + dy;
+        int ry= -dx + dy;
+        int length= ff_sqrt((rx*rx + ry*ry)<<8);
+        
+        //FIXME subpixel accuracy
+        rx= ROUNDED_DIV(rx*3<<4, length);
+        ry= ROUNDED_DIV(ry*3<<4, length);
+        
+        draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color);
+        draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color);
+    }
+    draw_line(buf, sx, sy, ex, ey, w, h, stride, color);
+}
+
+/**
+ * prints debuging info for the given picture.
+ */
+void ff_print_debug_info(MpegEncContext *s, Picture *pict){
+
+    if(!pict || !pict->mb_type) return;
 
-            s->coded_order[index].picture[i]= dest;
-            for(j=0;j<h;j++) {
-                memcpy(dest, src, w);
-                dest += dest_wrap;
-                src += src_wrap;
+    if(s->avctx->debug&(FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)){
+        int x,y;
+
+        for(y=0; y<s->mb_height; y++){
+            for(x=0; x<s->mb_width; x++){
+                if(s->avctx->debug&FF_DEBUG_SKIP){
+                    int count= s->mbskip_table[x + y*s->mb_stride];
+                    if(count>9) count=9;
+                    printf("%1d", count);
+                }
+                if(s->avctx->debug&FF_DEBUG_QP){
+                    printf("%2d", pict->qscale_table[x + y*s->mb_stride]);
+                }
+                if(s->avctx->debug&FF_DEBUG_MB_TYPE){
+                    int mb_type= pict->mb_type[x + y*s->mb_stride];
+                    
+                    //Type & MV direction
+                    if(IS_PCM(mb_type))
+                        printf("P");
+                    else if(IS_INTRA(mb_type) && IS_ACPRED(mb_type))
+                        printf("A");
+                    else if(IS_INTRA4x4(mb_type))
+                        printf("i");
+                    else if(IS_INTRA16x16(mb_type))
+                        printf("I");
+                    else if(IS_DIRECT(mb_type) && IS_SKIP(mb_type))
+                        printf("d");
+                    else if(IS_DIRECT(mb_type))
+                        printf("D");
+                    else if(IS_GMC(mb_type) && IS_SKIP(mb_type))
+                        printf("g");
+                    else if(IS_GMC(mb_type))
+                        printf("G");
+                    else if(IS_SKIP(mb_type))
+                        printf("S");
+                    else if(!USES_LIST(mb_type, 1))
+                        printf(">");
+                    else if(!USES_LIST(mb_type, 0))
+                        printf("<");
+                    else{
+                        assert(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
+                        printf("X");
+                    }
+                    
+                    //segmentation
+                    if(IS_8X8(mb_type))
+                        printf("+");
+                    else if(IS_16X8(mb_type))
+                        printf("-");
+                    else if(IS_8X16(mb_type))
+                        printf("¦");
+                    else if(IS_INTRA(mb_type) || IS_16X16(mb_type))
+                        printf(" ");
+                    else
+                        printf("?");
+                    
+                        
+                    if(IS_INTERLACED(mb_type) && s->codec_id == CODEC_ID_H264)
+                        printf("=");
+                    else
+                        printf(" ");
+                }
+//                printf(" ");
             }
+            printf("\n");
         }
-        if(index!=0){
-            s->picture_buffer_index++;
-            if(s->picture_buffer_index >= REORDER_BUFFER_SIZE) s->picture_buffer_index=0;
+    }
+    
+    if((s->avctx->debug&FF_DEBUG_VIS_MV) && s->motion_val){
+        const int shift= 1 + s->quarter_sample;
+        int mb_y;
+        uint8_t *ptr= pict->data[0];
+        s->low_delay=0; //needed to see the vectors without trashing the buffers
+
+        for(mb_y=0; mb_y<s->mb_height; mb_y++){
+            int mb_x;
+            for(mb_x=0; mb_x<s->mb_width; mb_x++){
+                const int mb_index= mb_x + mb_y*s->mb_stride;
+                if(IS_8X8(s->current_picture.mb_type[mb_index])){
+                    int i;
+                    for(i=0; i<4; i++){
+                        int sx= mb_x*16 + 4 + 8*(i&1);
+                        int sy= mb_y*16 + 4 + 8*(i>>1);
+                        int xy= 1 + mb_x*2 + (i&1) + (mb_y*2 + 1 + (i>>1))*(s->mb_width*2 + 2);
+                        int mx= (s->motion_val[xy][0]>>shift) + sx;
+                        int my= (s->motion_val[xy][1]>>shift) + sy;
+                        draw_arrow(ptr, sx, sy, mx, my, s->width, s->height, s->linesize, 100);
+                    }
+                }else{
+                    int sx= mb_x*16 + 8;
+                    int sy= mb_y*16 + 8;
+                    int xy= 1 + mb_x*2 + (mb_y*2 + 1)*(s->mb_width*2 + 2);
+                    int mx= (s->motion_val[xy][0]>>shift) + sx;
+                    int my= (s->motion_val[xy][1]>>shift) + sy;
+                    draw_arrow(ptr, sx, sy, mx, my, s->width, s->height, s->linesize, 100);
+                }
+                s->mbskip_table[mb_index]=0;
+            }
         }
     }
-    s->coded_order[index].pict_type = s->input_pict_type;
-    s->coded_order[index].qscale    = s->input_qscale;
-    s->coded_order[index].force_type= s->force_input_type;
-    s->coded_order[index].picture_in_gop_number= s->input_picture_in_gop_number;
-    s->coded_order[index].picture_number= s->input_picture_number;
+}
 
-    for(i=0; i<3; i++){
-        s->new_picture[i]= s->coded_order[0].picture[i];
+#ifdef CONFIG_ENCODERS
+
+static int get_sae(uint8_t *src, int ref, int stride){
+    int x,y;
+    int acc=0;
+    
+    for(y=0; y<16; y++){
+        for(x=0; x<16; x++){
+            acc+= ABS(src[x+y*stride] - ref);
+        }
     }
+    
+    return acc;
 }
 
-int MPV_encode_picture(AVCodecContext *avctx,
-                       unsigned char *buf, int buf_size, void *data)
-{
-    MpegEncContext *s = avctx->priv_data;
-    AVPicture *pict = data;
+static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
+    int x, y, w, h;
+    int acc=0;
+    
+    w= s->width &~15;
+    h= s->height&~15;
+    
+    for(y=0; y<h; y+=16){
+        for(x=0; x<w; x+=16){
+            int offset= x + y*stride;
+            int sad = s->dsp.pix_abs16x16(src + offset, ref + offset, stride);
+            int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
+            int sae = get_sae(src + offset, mean, stride);
+            
+            acc+= sae + 500 < sad;
+        }
+    }
+    return acc;
+}
 
-    s->input_qscale = avctx->quality;
 
-    init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
+static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
+    AVFrame *pic;
+    int i;
+    const int encoding_delay= s->max_b_frames;
+    int direct=1;
+
+    if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
+    if(pic_arg->linesize[0] != s->linesize) direct=0;
+    if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
+    if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
+  
+//    printf("%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
+    
+    if(direct){
+        i= find_unused_picture(s, 1);
 
-    if(avctx->flags&CODEC_FLAG_TYPE){
-        s->input_pict_type=
-        s->force_input_type= avctx->key_frame ? I_TYPE : P_TYPE;
-    }else if(s->flags&CODEC_FLAG_PASS2){
-        s->input_pict_type=
-        s->force_input_type= s->rc_context.entry[s->input_picture_number].new_pict_type;
+        pic= (AVFrame*)&s->picture[i];
+        pic->reference= 3;
+    
+        for(i=0; i<4; i++){
+            pic->data[i]= pic_arg->data[i];
+            pic->linesize[i]= pic_arg->linesize[i];
+        }
+        alloc_picture(s, (Picture*)pic, 1);
     }else{
-        s->force_input_type=0;
-        if (!s->intra_only) {
-            /* first picture of GOP is intra */
-            if (s->input_picture_in_gop_number % s->gop_size==0){
-                s->input_pict_type = I_TYPE;
-            }else if(s->max_b_frames==0){
-                s->input_pict_type = P_TYPE;
+        i= find_unused_picture(s, 0);
+
+        pic= (AVFrame*)&s->picture[i];
+        pic->reference= 3;
+
+        alloc_picture(s, (Picture*)pic, 0);
+        for(i=0; i<4; i++){
+            /* the input will be 16 pixels to the right relative to the actual buffer start
+             * and the current_pic, so the buffer can be reused, yes its not beatifull 
+             */
+            pic->data[i]+= 16; 
+        }
+
+        if(   pic->data[0] == pic_arg->data[0] 
+           && pic->data[1] == pic_arg->data[1]
+           && pic->data[2] == pic_arg->data[2]){
+       // empty
+        }else{
+            int h_chroma_shift, v_chroma_shift;
+        
+            avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
+        
+            for(i=0; i<3; i++){
+                int src_stride= pic_arg->linesize[i];
+                int dst_stride= i ? s->uvlinesize : s->linesize;
+                int h_shift= i ? h_chroma_shift : 0;
+                int v_shift= i ? v_chroma_shift : 0;
+                int w= s->width >>h_shift;
+                int h= s->height>>v_shift;
+                uint8_t *src= pic_arg->data[i];
+                uint8_t *dst= pic->data[i];
+            
+                if(src_stride==dst_stride)
+                    memcpy(dst, src, src_stride*h);
+                else{
+                    while(h--){
+                        memcpy(dst, src, w);
+                        dst += dst_stride;
+                        src += src_stride;
+                    }
+                }
+            }
+        }
+    }
+    pic->quality= pic_arg->quality;
+    pic->pict_type= pic_arg->pict_type;
+    pic->pts = pic_arg->pts;
+    
+    if(s->input_picture[encoding_delay])
+        pic->display_picture_number= s->input_picture[encoding_delay]->display_picture_number + 1;
+
+    /* shift buffer entries */
+    for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
+        s->input_picture[i-1]= s->input_picture[i];
+        
+    s->input_picture[encoding_delay]= (Picture*)pic;
+
+    return 0;
+}
+
+static void select_input_picture(MpegEncContext *s){
+    int i;
+    const int encoding_delay= s->max_b_frames;
+    int coded_pic_num=0;    
+
+    if(s->reordered_input_picture[0])
+        coded_pic_num= s->reordered_input_picture[0]->coded_picture_number + 1;
+
+    for(i=1; i<MAX_PICTURE_COUNT; i++)
+        s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
+    s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
+
+    /* set next picture types & ordering */
+    if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
+        if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
+            s->reordered_input_picture[0]= s->input_picture[0];
+            s->reordered_input_picture[0]->pict_type= I_TYPE;
+            s->reordered_input_picture[0]->coded_picture_number= coded_pic_num;
+        }else{
+            int b_frames;
+            
+            if(s->flags&CODEC_FLAG_PASS2){
+                for(i=0; i<s->max_b_frames+1; i++){
+                    int pict_num= s->input_picture[0]->display_picture_number + i;
+                    int pict_type= s->rc_context.entry[pict_num].new_pict_type;
+                    s->input_picture[i]->pict_type= pict_type;
+                    
+                    if(i + 1 >= s->rc_context.num_entries) break;
+                }
+            }
+
+            if(s->input_picture[0]->pict_type){
+                /* user selected pict_type */
+                for(b_frames=0; b_frames<s->max_b_frames+1; b_frames++){
+                    if(s->input_picture[b_frames]->pict_type!=B_TYPE) break;
+                }
+            
+                if(b_frames > s->max_b_frames){
+                    fprintf(stderr, "warning, too many bframes in a row\n");
+                    b_frames = s->max_b_frames;
+                }
+            }else if(s->b_frame_strategy==0){
+                b_frames= s->max_b_frames;
+            }else if(s->b_frame_strategy==1){
+                for(i=1; i<s->max_b_frames+1; i++){
+                    if(s->input_picture[i]->b_frame_score==0){
+                        s->input_picture[i]->b_frame_score= 
+                            get_intra_count(s, s->input_picture[i  ]->data[0], 
+                                               s->input_picture[i-1]->data[0], s->linesize) + 1;
+                    }
+                }
+                for(i=0; i<s->max_b_frames; i++){
+                    if(s->input_picture[i]->b_frame_score - 1 > s->mb_num/40) break;
+                }
+                                
+                b_frames= FFMAX(0, i-1);
+                
+                /* reset scores */
+                for(i=0; i<b_frames+1; i++){
+                    s->input_picture[i]->b_frame_score=0;
+                }
             }else{
-                if(s->b_frames_since_non_b < s->max_b_frames) //FIXME more IQ
-                    s->input_pict_type = B_TYPE;
-                else
-                    s->input_pict_type = P_TYPE;
+                fprintf(stderr, "illegal b frame strategy\n");
+                b_frames=0;
+            }
+
+            emms_c();
+//static int b_count=0;
+//b_count+= b_frames;
+//printf("b_frames: %d\n", b_count);
+                        
+            s->reordered_input_picture[0]= s->input_picture[b_frames];
+            if(   s->picture_in_gop_number + b_frames >= s->gop_size 
+               || s->reordered_input_picture[0]->pict_type== I_TYPE)
+                s->reordered_input_picture[0]->pict_type= I_TYPE;
+            else
+                s->reordered_input_picture[0]->pict_type= P_TYPE;
+            s->reordered_input_picture[0]->coded_picture_number= coded_pic_num;
+            for(i=0; i<b_frames; i++){
+                coded_pic_num++;
+                s->reordered_input_picture[i+1]= s->input_picture[i];
+                s->reordered_input_picture[i+1]->pict_type= B_TYPE;
+                s->reordered_input_picture[i+1]->coded_picture_number= coded_pic_num;
+            }
+        }
+    }
+    
+    if(s->reordered_input_picture[0]){
+        s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=B_TYPE ? 3 : 0;
+
+        s->new_picture= *s->reordered_input_picture[0];
+
+        if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
+            // input is a shared pix, so we cant modifiy it -> alloc a new one & ensure that the shared one is reuseable
+        
+            int i= find_unused_picture(s, 0);
+            Picture *pic= &s->picture[i];
+
+            /* mark us unused / free shared pic */
+            for(i=0; i<4; i++)
+                s->reordered_input_picture[0]->data[i]= NULL;
+            s->reordered_input_picture[0]->type= 0;
+            
+            //FIXME bad, copy * except
+            pic->pict_type = s->reordered_input_picture[0]->pict_type;
+            pic->quality   = s->reordered_input_picture[0]->quality;
+            pic->coded_picture_number = s->reordered_input_picture[0]->coded_picture_number;
+            pic->reference = s->reordered_input_picture[0]->reference;
+            
+            alloc_picture(s, pic, 0);
+
+            s->current_picture_ptr= pic;
+        }else{
+            // input is not a shared pix -> reuse buffer for current_pix
+
+            assert(   s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER 
+                   || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
+            
+            s->current_picture_ptr= s->reordered_input_picture[0];
+            for(i=0; i<4; i++){
+                //reverse the +16 we did before storing the input
+                s->current_picture_ptr->data[i]-=16;
             }
-        } else {
-            s->input_pict_type = I_TYPE;
         }
+        s->current_picture= *s->current_picture_ptr;
+    
+        s->picture_number= s->new_picture.display_picture_number;
+//printf("dpn:%d\n", s->picture_number);
+    }else{
+       memset(&s->new_picture, 0, sizeof(Picture));
     }
+}
+
+int MPV_encode_picture(AVCodecContext *avctx,
+                       unsigned char *buf, int buf_size, void *data)
+{
+    MpegEncContext *s = avctx->priv_data;
+    AVFrame *pic_arg = data;
+    int i;
+
+    init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
+
+    s->picture_in_gop_number++;
 
-    if(s->input_pict_type==I_TYPE)
-        s->input_picture_in_gop_number=0;
+    load_input_picture(s, pic_arg);
     
-    reorder_input(s, pict);
+    select_input_picture(s);
     
     /* output? */
-    if(s->coded_order[0].picture[0]){
-
-        s->pict_type= s->coded_order[0].pict_type;
-        if (s->fixed_qscale) /* the ratecontrol needs the last qscale so we dont touch it for CBR */
-            s->qscale= s->coded_order[0].qscale;
-        s->force_type= s->coded_order[0].force_type;
-        s->picture_in_gop_number= s->coded_order[0].picture_in_gop_number;
-        s->picture_number= s->coded_order[0].picture_number;
+    if(s->new_picture.data[0]){
 
+        s->pict_type= s->new_picture.pict_type;
+        if (s->fixed_qscale){ /* the ratecontrol needs the last qscale so we dont touch it for CBR */
+            s->qscale= (int)(s->new_picture.quality+0.5);
+            assert(s->qscale);
+        }
+//emms_c();
+//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
         MPV_frame_start(s, avctx);
 
         encode_picture(s, s->picture_number);
@@ -1054,52 +1560,34 @@ int MPV_encode_picture(AVCodecContext *avctx,
 
         if (s->out_format == FMT_MJPEG)
             mjpeg_picture_trailer(s);
-
-        if(!s->fixed_qscale)
-            avctx->quality = s->qscale;
         
         if(s->flags&CODEC_FLAG_PASS1)
             ff_write_pass1_stats(s);
-    
+
+        for(i=0; i<4; i++){
+            avctx->error[i] += s->current_picture_ptr->error[i];
+        }
     }
 
     s->input_picture_number++;
-    s->input_picture_in_gop_number++;
 
     flush_put_bits(&s->pb);
     s->frame_bits  = (pbBufPtr(&s->pb) - s->pb.buf) * 8;
     
     s->total_bits += s->frame_bits;
     avctx->frame_bits  = s->frame_bits;
-//printf("fcode: %d, type: %d, head: %d, mv: %d, misc: %d, frame: %d, itex: %d, ptex: %d\n", 
-//s->f_code, avctx->key_frame, s->header_bits, s->mv_bits, s->misc_bits, s->frame_bits, s->i_tex_bits, s->p_tex_bits);
-#if 0 //dump some stats to stats.txt for testing/debuging
-if(s->max_b_frames==0)
-{
-    static FILE *f=NULL;
-    if(!f) f= fopen("stats.txt", "wb");
-    get_psnr(pict->data, s->current_picture,
-             pict->linesize, s->linesize, avctx);
-    fprintf(f, "%7d, %7d, %2.4f\n", pbBufPtr(&s->pb) - s->pb.buf, s->qscale, avctx->psnr_y);
-}
-#endif
-
-    if (avctx->get_psnr) {
-        /* At this point pict->data should have the original frame   */
-        /* an s->current_picture should have the coded/decoded frame */
-        get_psnr(pict->data, s->current_picture,
-                 pict->linesize, s->linesize, avctx);
-//        printf("%f\n", avctx->psnr_y);
-    }
+    
     return pbBufPtr(&s->pb) - s->pb.buf;
 }
 
+#endif //CONFIG_ENCODERS
+
 static inline void gmc1_motion(MpegEncContext *s,
-                               UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
+                               uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
                                int dest_offset,
-                               UINT8 **ref_picture, int src_offset)
+                               uint8_t **ref_picture, int src_offset)
 {
-    UINT8 *ptr;
+    uint8_t *ptr;
     int offset, src_x, src_y, linesize, uvlinesize;
     int motion_x, motion_y;
     int emu=0;
@@ -1124,26 +1612,25 @@ static inline void gmc1_motion(MpegEncContext *s,
 
     dest_y+=dest_offset;
     if(s->flags&CODEC_FLAG_EMU_EDGE){
-        if(src_x<0 || src_y<0 || src_x + (motion_x&15) + 16 > s->h_edge_pos
-                              || src_y + (motion_y&15) + 16 > s->v_edge_pos){
-            emulated_edge_mc(s, ptr, linesize, 17, 17, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
+        if(src_x<0 || src_y<0 || src_x + 17 >= s->h_edge_pos
+                              || src_y + 17 >= s->v_edge_pos){
+            ff_emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, 17, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
             ptr= s->edge_emu_buffer;
-            emu=1;
         }
     }
     
     if((motion_x|motion_y)&7){
-        ff_gmc1(dest_y  , ptr  , linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
-        ff_gmc1(dest_y+8, ptr+8, linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
+        s->dsp.gmc1(dest_y  , ptr  , linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
+        s->dsp.gmc1(dest_y+8, ptr+8, linesize, 16, motion_x&15, motion_y&15, 128 - s->no_rounding);
     }else{
         int dxy;
         
         dxy= ((motion_x>>3)&1) | ((motion_y>>2)&2);
         if (s->no_rounding){
-            put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
+           s->dsp.put_no_rnd_pixels_tab[0][dxy](dest_y, ptr, linesize, 16);
         }else{
-            put_pixels_tab       [0][dxy](dest_y, ptr, linesize, 16);
-        }        
+            s->dsp.put_pixels_tab       [0][dxy](dest_y, ptr, linesize, 16);
+        }
     }
     
     if(s->flags&CODEC_FLAG_GRAY) return;
@@ -1163,28 +1650,32 @@ static inline void gmc1_motion(MpegEncContext *s,
 
     offset = (src_y * uvlinesize) + src_x + (src_offset>>1);
     ptr = ref_picture[1] + offset;
-    if(emu){
-        emulated_edge_mc(s, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
-        ptr= s->edge_emu_buffer;
+    if(s->flags&CODEC_FLAG_EMU_EDGE){
+        if(src_x<0 || src_y<0 || src_x + 9 >= s->h_edge_pos>>1
+                              || src_y + 9 >= s->v_edge_pos>>1){
+            ff_emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
+            ptr= s->edge_emu_buffer;
+            emu=1;
+        }
     }
-    ff_gmc1(dest_cb + (dest_offset>>1), ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
+    s->dsp.gmc1(dest_cb + (dest_offset>>1), ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
     
     ptr = ref_picture[2] + offset;
     if(emu){
-        emulated_edge_mc(s, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
+        ff_emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
         ptr= s->edge_emu_buffer;
     }
-    ff_gmc1(dest_cr + (dest_offset>>1), ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
+    s->dsp.gmc1(dest_cr + (dest_offset>>1), ptr, uvlinesize, 8, motion_x&15, motion_y&15, 128 - s->no_rounding);
     
     return;
 }
 
 static inline void gmc_motion(MpegEncContext *s,
-                               UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
+                               uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
                                int dest_offset,
-                               UINT8 **ref_picture, int src_offset)
+                               uint8_t **ref_picture, int src_offset)
 {
-    UINT8 *ptr;
+    uint8_t *ptr;
     int linesize, uvlinesize;
     const int a= s->sprite_warping_accuracy;
     int ox, oy;
@@ -1199,14 +1690,14 @@ static inline void gmc_motion(MpegEncContext *s,
     ox= s->sprite_offset[0][0] + s->sprite_delta[0][0]*s->mb_x*16 + s->sprite_delta[0][1]*s->mb_y*16;
     oy= s->sprite_offset[0][1] + s->sprite_delta[1][0]*s->mb_x*16 + s->sprite_delta[1][1]*s->mb_y*16;
 
-    ff_gmc(dest_y, ptr, linesize, 16, 
+    s->dsp.gmc(dest_y, ptr, linesize, 16,
            ox, 
            oy, 
            s->sprite_delta[0][0], s->sprite_delta[0][1],
            s->sprite_delta[1][0], s->sprite_delta[1][1], 
            a+1, (1<<(2*a+1)) - s->no_rounding,
            s->h_edge_pos, s->v_edge_pos);
-    ff_gmc(dest_y+8, ptr, linesize, 16, 
+    s->dsp.gmc(dest_y+8, ptr, linesize, 16,
            ox + s->sprite_delta[0][0]*8, 
            oy + s->sprite_delta[1][0]*8, 
            s->sprite_delta[0][0], s->sprite_delta[0][1],
@@ -1224,7 +1715,7 @@ static inline void gmc_motion(MpegEncContext *s,
     oy= s->sprite_offset[1][1] + s->sprite_delta[1][0]*s->mb_x*8 + s->sprite_delta[1][1]*s->mb_y*8;
 
     ptr = ref_picture[1] + (src_offset>>1);
-    ff_gmc(dest_cb, ptr, uvlinesize, 8, 
+    s->dsp.gmc(dest_cb, ptr, uvlinesize, 8,
            ox, 
            oy, 
            s->sprite_delta[0][0], s->sprite_delta[0][1],
@@ -1233,7 +1724,7 @@ static inline void gmc_motion(MpegEncContext *s,
            s->h_edge_pos>>1, s->v_edge_pos>>1);
     
     ptr = ref_picture[2] + (src_offset>>1);
-    ff_gmc(dest_cr, ptr, uvlinesize, 8, 
+    s->dsp.gmc(dest_cr, ptr, uvlinesize, 8,
            ox, 
            oy, 
            s->sprite_delta[0][0], s->sprite_delta[0][1],
@@ -1242,13 +1733,23 @@ static inline void gmc_motion(MpegEncContext *s,
            s->h_edge_pos>>1, s->v_edge_pos>>1);
 }
 
-
-static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h, 
+/**
+ * Copies a rectangular area of samples to a temporary buffer and replicates the boarder samples.
+ * @param buf destination buffer
+ * @param src source buffer
+ * @param linesize number of bytes between 2 vertically adjacent samples in both the source and destination buffers
+ * @param block_w width of block
+ * @param block_h height of block
+ * @param src_x x coordinate of the top left sample of the block in the source buffer
+ * @param src_y y coordinate of the top left sample of the block in the source buffer
+ * @param w width of the source buffer
+ * @param h height of the source buffer
+ */
+void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize, int block_w, int block_h, 
                                     int src_x, int src_y, int w, int h){
     int x, y;
     int start_y, start_x, end_y, end_x;
-    UINT8 *buf= s->edge_emu_buffer;
-    
+
     if(src_y>= h){
         src+= (h-1-src_y)*linesize;
         src_y=h-1;
@@ -1264,10 +1765,10 @@ static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int bl
         src_x=1-block_w;
     }
 
-    start_y= MAX(0, -src_y);
-    start_x= MAX(0, -src_x);
-    end_y= MIN(block_h, h-src_y);
-    end_x= MIN(block_w, w-src_x);
+    start_y= FFMAX(0, -src_y);
+    start_x= FFMAX(0, -src_x);
+    end_y= FFMIN(block_h, h-src_y);
+    end_x= FFMIN(block_w, w-src_x);
 
     // copy existing part
     for(y=start_y; y<end_y; y++){
@@ -1306,13 +1807,13 @@ static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int bl
 
 /* apply one mpeg motion vector to the three components */
 static inline void mpeg_motion(MpegEncContext *s,
-                               UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
+                               uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
                                int dest_offset,
-                               UINT8 **ref_picture, int src_offset,
+                               uint8_t **ref_picture, int src_offset,
                                int field_based, op_pixels_func (*pix_op)[4],
                                int motion_x, int motion_y, int h)
 {
-    UINT8 *ptr;
+    uint8_t *ptr;
     int dxy, offset, mx, my, src_x, src_y, height, v_edge_pos, linesize, uvlinesize;
     int emu=0;
 #if 0    
@@ -1335,15 +1836,15 @@ if(s->quarter_sample)
     src_y = clip(src_y, -16, height);
     if (src_y == height)
         dxy &= ~2;
-    linesize   = s->linesize << field_based;
-    uvlinesize = s->uvlinesize << field_based;
+    linesize   = s->current_picture.linesize[0] << field_based;
+    uvlinesize = s->current_picture.linesize[1] << field_based;
     ptr = ref_picture[0] + (src_y * linesize) + (src_x) + src_offset;
     dest_y += dest_offset;
 
     if(s->flags&CODEC_FLAG_EMU_EDGE){
         if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 16 > s->h_edge_pos
                               || src_y + (motion_y&1) + h  > v_edge_pos){
-            emulated_edge_mc(s, ptr - src_offset, s->linesize, 17, 17+field_based, 
+            ff_emulated_edge_mc(s->edge_emu_buffer, ptr - src_offset, s->linesize, 17, 17+field_based,  //FIXME linesize? and uv below
                              src_x, src_y<<field_based, s->h_edge_pos, s->v_edge_pos);
             ptr= s->edge_emu_buffer + src_offset;
             emu=1;
@@ -1380,7 +1881,7 @@ if(s->quarter_sample)
     offset = (src_y * uvlinesize) + src_x + (src_offset >> 1);
     ptr = ref_picture[1] + offset;
     if(emu){
-        emulated_edge_mc(s, ptr - (src_offset >> 1), s->uvlinesize, 9, 9+field_based, 
+        ff_emulated_edge_mc(s->edge_emu_buffer, ptr - (src_offset >> 1), s->uvlinesize, 9, 9+field_based, 
                          src_x, src_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
         ptr= s->edge_emu_buffer + (src_offset >> 1);
     }
@@ -1388,7 +1889,7 @@ if(s->quarter_sample)
 
     ptr = ref_picture[2] + offset;
     if(emu){
-        emulated_edge_mc(s, ptr - (src_offset >> 1), s->uvlinesize, 9, 9+field_based, 
+        ff_emulated_edge_mc(s->edge_emu_buffer, ptr - (src_offset >> 1), s->uvlinesize, 9, 9+field_based, 
                          src_x, src_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
         ptr= s->edge_emu_buffer + (src_offset >> 1);
     }
@@ -1396,14 +1897,14 @@ if(s->quarter_sample)
 }
 
 static inline void qpel_motion(MpegEncContext *s,
-                               UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
+                               uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
                                int dest_offset,
-                               UINT8 **ref_picture, int src_offset,
+                               uint8_t **ref_picture, int src_offset,
                                int field_based, op_pixels_func (*pix_op)[4],
                                qpel_mc_func (*qpix_op)[16],
                                int motion_x, int motion_y, int h)
 {
-    UINT8 *ptr;
+    uint8_t *ptr;
     int dxy, offset, mx, my, src_x, src_y, height, v_edge_pos, linesize, uvlinesize;
     int emu=0;
 
@@ -1428,7 +1929,7 @@ static inline void qpel_motion(MpegEncContext *s,
     if(s->flags&CODEC_FLAG_EMU_EDGE){
         if(src_x<0 || src_y<0 || src_x + (motion_x&3) + 16 > s->h_edge_pos
                               || src_y + (motion_y&3) + h  > v_edge_pos){
-            emulated_edge_mc(s, ptr - src_offset, s->linesize, 17, 17+field_based, 
+            ff_emulated_edge_mc(s->edge_emu_buffer, ptr - src_offset, s->linesize, 17, 17+field_based, 
                              src_x, src_y<<field_based, s->h_edge_pos, s->v_edge_pos);
             ptr= s->edge_emu_buffer + src_offset;
             emu=1;
@@ -1448,6 +1949,10 @@ static inline void qpel_motion(MpegEncContext *s,
     if(field_based){
         mx= motion_x/2;
         my= motion_y>>1;
+    }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA2){
+        static const int rtab[8]= {0,0,1,1,0,0,0,1};
+        mx= (motion_x>>1) + rtab[motion_x&7];
+        my= (motion_y>>1) + rtab[motion_y&7];
     }else if(s->workaround_bugs&FF_BUG_QPEL_CHROMA){
         mx= (motion_x>>1)|(motion_x&1);
         my= (motion_y>>1)|(motion_y&1);
@@ -1457,6 +1962,7 @@ static inline void qpel_motion(MpegEncContext *s,
     }
     mx= (mx>>1)|(mx&1);
     my= (my>>1)|(my&1);
+
     dxy= (mx&1) | ((my&1)<<1);
     mx>>=1;
     my>>=1;
@@ -1473,7 +1979,7 @@ static inline void qpel_motion(MpegEncContext *s,
     offset = (src_y * uvlinesize) + src_x + (src_offset >> 1);
     ptr = ref_picture[1] + offset;
     if(emu){
-        emulated_edge_mc(s, ptr - (src_offset >> 1), s->uvlinesize, 9, 9 + field_based, 
+        ff_emulated_edge_mc(s->edge_emu_buffer, ptr - (src_offset >> 1), s->uvlinesize, 9, 9 + field_based, 
                          src_x, src_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
         ptr= s->edge_emu_buffer + (src_offset >> 1);
     }
@@ -1481,22 +1987,42 @@ static inline void qpel_motion(MpegEncContext *s,
     
     ptr = ref_picture[2] + offset;
     if(emu){
-        emulated_edge_mc(s, ptr - (src_offset >> 1), s->uvlinesize, 9, 9 + field_based, 
+        ff_emulated_edge_mc(s->edge_emu_buffer, ptr - (src_offset >> 1), s->uvlinesize, 9, 9 + field_based, 
                          src_x, src_y<<field_based, s->h_edge_pos>>1, s->v_edge_pos>>1);
         ptr= s->edge_emu_buffer + (src_offset >> 1);
     }
     pix_op[1][dxy](dest_cr + (dest_offset >> 1), ptr,  uvlinesize, h >> 1);
 }
 
+inline int ff_h263_round_chroma(int x){
+    if (x >= 0)
+        return  (h263_chroma_roundtab[x & 0xf] + ((x >> 3) & ~1));
+    else {
+        x = -x;
+        return -(h263_chroma_roundtab[x & 0xf] + ((x >> 3) & ~1));
+    }
+}
 
+/**
+ * motion compesation of a single macroblock
+ * @param s context
+ * @param dest_y luma destination pointer
+ * @param dest_cb chroma cb/u destination pointer
+ * @param dest_cr chroma cr/v destination pointer
+ * @param dir direction (0->forward, 1->backward)
+ * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
+ * @param pic_op halfpel motion compensation function (average or put normally)
+ * @param pic_op qpel motion compensation function (average or put normally)
+ * the motion vectors are taken from s->mv and the MV type from s->mv_type
+ */
 static inline void MPV_motion(MpegEncContext *s, 
-                              UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
-                              int dir, UINT8 **ref_picture, 
+                              uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
+                              int dir, uint8_t **ref_picture, 
                               op_pixels_func (*pix_op)[4], qpel_mc_func (*qpix_op)[16])
 {
     int dxy, offset, mx, my, src_x, src_y, motion_x, motion_y;
     int mb_x, mb_y, i;
-    UINT8 *ptr, *dest;
+    uint8_t *ptr, *dest;
     int emu=0;
 
     mb_x = s->mb_x;
@@ -1504,6 +2030,7 @@ static inline void MPV_motion(MpegEncContext *s,
 
     switch(s->mv_type) {
     case MV_TYPE_16X16:
+#ifdef CONFIG_RISKY
         if(s->mcsel){
             if(s->real_sprite_warping_points==1){
                 gmc1_motion(s, dest_y, dest_cb, dest_cr, 0,
@@ -1517,7 +2044,13 @@ static inline void MPV_motion(MpegEncContext *s,
                         ref_picture, 0,
                         0, pix_op, qpix_op,
                         s->mv[dir][0][0], s->mv[dir][0][1], 16);
-        }else{
+        }else if(s->mspel){
+            ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
+                        ref_picture, pix_op,
+                        s->mv[dir][0][0], s->mv[dir][0][1], 16);
+        }else
+#endif
+        {
             mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
                         ref_picture, 0,
                         0, pix_op,
@@ -1548,7 +2081,7 @@ static inline void MPV_motion(MpegEncContext *s,
                 if(s->flags&CODEC_FLAG_EMU_EDGE){
                     if(src_x<0 || src_y<0 || src_x + (motion_x&3) + 8 > s->h_edge_pos
                                           || src_y + (motion_y&3) + 8 > s->v_edge_pos){
-                        emulated_edge_mc(s, ptr, s->linesize, 9, 9, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
+                        ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->linesize, 9, 9, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
                         ptr= s->edge_emu_buffer;
                     }
                 }
@@ -1579,7 +2112,7 @@ static inline void MPV_motion(MpegEncContext *s,
                 if(s->flags&CODEC_FLAG_EMU_EDGE){
                     if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 8 > s->h_edge_pos
                                           || src_y + (motion_y&1) + 8 > s->v_edge_pos){
-                        emulated_edge_mc(s, ptr, s->linesize, 9, 9, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
+                        ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->linesize, 9, 9, src_x, src_y, s->h_edge_pos, s->v_edge_pos);
                         ptr= s->edge_emu_buffer;
                     }
                 }
@@ -1594,20 +2127,8 @@ static inline void MPV_motion(MpegEncContext *s,
         if(s->flags&CODEC_FLAG_GRAY) break;
         /* In case of 8X8, we construct a single chroma motion vector
            with a special rounding */
-        for(i=0;i<4;i++) {
-        }
-        if (mx >= 0)
-            mx = (h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
-        else {
-            mx = -mx;
-            mx = -(h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
-        }
-        if (my >= 0)
-            my = (h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
-        else {
-            my = -my;
-            my = -(h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
-        }
+        mx= ff_h263_round_chroma(mx);
+        my= ff_h263_round_chroma(my);
         dxy = ((my & 1) << 1) | (mx & 1);
         mx >>= 1;
         my >>= 1;
@@ -1626,7 +2147,7 @@ static inline void MPV_motion(MpegEncContext *s,
         if(s->flags&CODEC_FLAG_EMU_EDGE){
                 if(src_x<0 || src_y<0 || src_x + (dxy &1) + 8 > s->h_edge_pos>>1
                                       || src_y + (dxy>>1) + 8 > s->v_edge_pos>>1){
-                    emulated_edge_mc(s, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
+                    ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
                     ptr= s->edge_emu_buffer;
                     emu=1;
                 }
@@ -1635,7 +2156,7 @@ static inline void MPV_motion(MpegEncContext *s,
 
         ptr = ref_picture[2] + offset;
         if(emu){
-            emulated_edge_mc(s, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
+            ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
             ptr= s->edge_emu_buffer;
         }
         pix_op[1][dxy](dest_cr, ptr, s->uvlinesize, 8);
@@ -1666,38 +2187,147 @@ static inline void MPV_motion(MpegEncContext *s,
                             s->mv[dir][1][0], s->mv[dir][1][1], 8);
             }
         } else {
-            
+            int offset;
+            if(s->picture_structure == s->field_select[dir][0] + 1 || s->pict_type == B_TYPE || s->first_field){
+                offset= s->field_select[dir][0] ? s->linesize : 0;
+            }else{
+                ref_picture= s->current_picture.data;
+                offset= s->field_select[dir][0] ? s->linesize : -s->linesize; 
+            } 
+
+            mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
+                        ref_picture, offset,
+                        0, pix_op,
+                        s->mv[dir][0][0], s->mv[dir][0][1], 16);
+        }
+        break;
+    case MV_TYPE_16X8:{
+        int offset;
+         uint8_t ** ref2picture;
+
+            if(s->picture_structure == s->field_select[dir][0] + 1 || s->pict_type == B_TYPE || s->first_field){
+                ref2picture= ref_picture;
+                offset= s->field_select[dir][0] ? s->linesize : 0;
+            }else{
+                ref2picture= s->current_picture.data;
+                offset= s->field_select[dir][0] ? s->linesize : -s->linesize; 
+            } 
+
+            mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
+                        ref2picture, offset,
+                        0, pix_op,
+                        s->mv[dir][0][0], s->mv[dir][0][1], 8);
 
+
+            if(s->picture_structure == s->field_select[dir][1] + 1 || s->pict_type == B_TYPE || s->first_field){
+                ref2picture= ref_picture;
+                offset= s->field_select[dir][1] ? s->linesize : 0;
+            }else{
+                ref2picture= s->current_picture.data;
+                offset= s->field_select[dir][1] ? s->linesize : -s->linesize; 
+            } 
+            // I know it is ugly but this is the only way to fool emu_edge without rewrite mpeg_motion
+            mpeg_motion(s, dest_y+16*s->linesize, dest_cb+8*s->uvlinesize, dest_cr+8*s->uvlinesize,
+                        0,
+                        ref2picture, offset,
+                        0, pix_op,
+                        s->mv[dir][1][0], s->mv[dir][1][1]+16, 8);
         }
+        
         break;
+    case MV_TYPE_DMV:
+    {
+    op_pixels_func (*dmv_pix_op)[4];
+    int offset;
+
+        dmv_pix_op = s->dsp.put_pixels_tab;
+
+        if(s->picture_structure == PICT_FRAME){
+            //put top field from top field
+            mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
+                        ref_picture, 0,
+                        1, dmv_pix_op,
+                        s->mv[dir][0][0], s->mv[dir][0][1], 8);
+            //put bottom field from bottom field
+            mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
+                        ref_picture, s->linesize,
+                        1, dmv_pix_op,
+                        s->mv[dir][0][0], s->mv[dir][0][1], 8);
+
+            dmv_pix_op = s->dsp.avg_pixels_tab; 
+        
+            //avg top field from bottom field
+            mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
+                        ref_picture, s->linesize,
+                        1, dmv_pix_op,
+                        s->mv[dir][2][0], s->mv[dir][2][1], 8);
+            //avg bottom field from top field
+            mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
+                        ref_picture, 0,
+                        1, dmv_pix_op,
+                        s->mv[dir][3][0], s->mv[dir][3][1], 8);
+
+        }else{
+            offset=(s->picture_structure == PICT_BOTTOM_FIELD)? 
+                         s->linesize : 0;
+
+            //put field from the same parity
+            //same parity is never in the same frame
+            mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
+                        ref_picture,offset,
+                        0,dmv_pix_op,
+                        s->mv[dir][0][0],s->mv[dir][0][1],16);
+
+            // after put we make avg of the same block
+            dmv_pix_op=s->dsp.avg_pixels_tab; 
+
+            //opposite parity is always in the same frame if this is second field
+            if(!s->first_field){
+                ref_picture = s->current_picture.data;    
+                //top field is one linesize from frame beginig
+                offset=(s->picture_structure == PICT_BOTTOM_FIELD)? 
+                        -s->linesize : s->linesize;
+            }else 
+                offset=(s->picture_structure == PICT_BOTTOM_FIELD)? 
+                        0 : s->linesize;
+
+            //avg field from the opposite parity
+            mpeg_motion(s, dest_y, dest_cb, dest_cr,0,
+                        ref_picture, offset,
+                        0,dmv_pix_op,
+                        s->mv[dir][2][0],s->mv[dir][2][1],16);
+        }
+    }
+    break;
+
     }
 }
 
 
 /* put block[] to dest[] */
 static inline void put_dct(MpegEncContext *s, 
-                           DCTELEM *block, int i, UINT8 *dest, int line_size)
+                           DCTELEM *block, int i, uint8_t *dest, int line_size)
 {
     s->dct_unquantize(s, block, i, s->qscale);
-    s->idct_put (dest, line_size, block);
+    s->dsp.idct_put (dest, line_size, block);
 }
 
 /* add block[] to dest[] */
 static inline void add_dct(MpegEncContext *s, 
-                           DCTELEM *block, int i, UINT8 *dest, int line_size)
+                           DCTELEM *block, int i, uint8_t *dest, int line_size)
 {
     if (s->block_last_index[i] >= 0) {
-        s->idct_add (dest, line_size, block);
+        s->dsp.idct_add (dest, line_size, block);
     }
 }
 
 static inline void add_dequant_dct(MpegEncContext *s, 
-                           DCTELEM *block, int i, UINT8 *dest, int line_size)
+                           DCTELEM *block, int i, uint8_t *dest, int line_size)
 {
     if (s->block_last_index[i] >= 0) {
         s->dct_unquantize(s, block, i, s->qscale);
 
-        s->idct_add (dest, line_size, block);
+        s->dsp.idct_add (dest, line_size, block);
     }
 }
 
@@ -1714,8 +2344,8 @@ void ff_clean_intra_table_entries(MpegEncContext *s)
     s->dc_val[0][xy     + wrap] =
     s->dc_val[0][xy + 1 + wrap] = 1024;
     /* ac pred */
-    memset(s->ac_val[0][xy       ], 0, 32 * sizeof(INT16));
-    memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(INT16));
+    memset(s->ac_val[0][xy       ], 0, 32 * sizeof(int16_t));
+    memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
     if (s->msmpeg4_version>=3) {
         s->coded_block[xy           ] =
         s->coded_block[xy + 1       ] =
@@ -1728,10 +2358,10 @@ void ff_clean_intra_table_entries(MpegEncContext *s)
     s->dc_val[1][xy] =
     s->dc_val[2][xy] = 1024;
     /* ac pred */
-    memset(s->ac_val[1][xy], 0, 16 * sizeof(INT16));
-    memset(s->ac_val[2][xy], 0, 16 * sizeof(INT16));
+    memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
+    memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
     
-    s->mbintra_table[s->mb_x + s->mb_y*s->mb_width]= 0;
+    s->mbintra_table[s->mb_x + s->mb_y*s->mb_stride]= 0;
 }
 
 /* generic function called after a macroblock has been parsed by the
@@ -1747,12 +2377,12 @@ void ff_clean_intra_table_entries(MpegEncContext *s)
 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
 {
     int mb_x, mb_y;
-    const int mb_xy = s->mb_y * s->mb_width + s->mb_x;
+    const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
 
     mb_x = s->mb_x;
     mb_y = s->mb_y;
 
-    s->qscale_table[mb_xy]= s->qscale;
+    s->current_picture.qscale_table[mb_xy]= s->qscale;
 
     /* update DC predictors for P macroblocks */
     if (!s->mb_intra) {
@@ -1770,36 +2400,29 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
 
     /* update motion predictor, not for B-frames as they need the motion_val from the last P/S-Frame */
     if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE) { //FIXME move into h263.c if possible, format specific stuff shouldnt be here
-        
+        //FIXME a lot of thet is only needed for !low_delay
         const int wrap = s->block_wrap[0];
         const int xy = s->block_index[0];
-        const int mb_index= s->mb_x + s->mb_y*s->mb_width;
-        if(s->mv_type == MV_TYPE_8X8){
-            s->co_located_type_table[mb_index]= CO_LOCATED_TYPE_4MV;
-        } else {
+        if(s->mv_type != MV_TYPE_8X8){
             int motion_x, motion_y;
             if (s->mb_intra) {
                 motion_x = 0;
                 motion_y = 0;
-                if(s->co_located_type_table)
-                    s->co_located_type_table[mb_index]= 0;
             } else if (s->mv_type == MV_TYPE_16X16) {
                 motion_x = s->mv[0][0][0];
                 motion_y = s->mv[0][0][1];
-                if(s->co_located_type_table)
-                    s->co_located_type_table[mb_index]= 0;
             } else /*if (s->mv_type == MV_TYPE_FIELD)*/ {
                 int i;
                 motion_x = s->mv[0][0][0] + s->mv[0][1][0];
                 motion_y = s->mv[0][0][1] + s->mv[0][1][1];
                 motion_x = (motion_x>>1) | (motion_x&1);
                 for(i=0; i<2; i++){
-                    s->field_mv_table[mb_index][i][0]= s->mv[0][i][0];
-                    s->field_mv_table[mb_index][i][1]= s->mv[0][i][1];
-                    s->field_select_table[mb_index][i]= s->field_select[0][i];
+                    s->field_mv_table[mb_xy][i][0]= s->mv[0][i][0];
+                    s->field_mv_table[mb_xy][i][1]= s->mv[0][i][1];
+                    s->field_select_table[mb_xy][i]= s->field_select[0][i];
                 }
-                s->co_located_type_table[mb_index]= CO_LOCATED_TYPE_FIELDMV;
             }
+            
             /* no update if 8X8 because it has been done during parsing */
             s->motion_val[xy][0] = motion_x;
             s->motion_val[xy][1] = motion_y;
@@ -1810,49 +2433,71 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
             s->motion_val[xy + 1 + wrap][0] = motion_x;
             s->motion_val[xy + 1 + wrap][1] = motion_y;
         }
+
+        if(s->encoding){ //FIXME encoding MUST be cleaned up
+            if (s->mv_type == MV_TYPE_8X8) 
+                s->current_picture.mb_type[mb_xy]= MB_TYPE_L0 | MB_TYPE_8x8;
+            else
+                s->current_picture.mb_type[mb_xy]= MB_TYPE_L0 | MB_TYPE_16x16;
+        }
     }
     
-    if (!(s->encoding && (s->intra_only || s->pict_type==B_TYPE))) {
-        UINT8 *dest_y, *dest_cb, *dest_cr;
+    if ((s->flags&CODEC_FLAG_PSNR) || !(s->encoding && (s->intra_only || s->pict_type==B_TYPE))) { //FIXME precalc
+        uint8_t *dest_y, *dest_cb, *dest_cr;
         int dct_linesize, dct_offset;
         op_pixels_func (*op_pix)[4];
         qpel_mc_func (*op_qpix)[16];
+        const int linesize= s->current_picture.linesize[0]; //not s->linesize as this woulnd be wrong for field pics
+        const int uvlinesize= s->current_picture.linesize[1];
 
-        /* avoid copy if macroblock skipped in last frame too 
-           dont touch it for B-frames as they need the skip info from the next p-frame */
+        /* avoid copy if macroblock skipped in last frame too */
         if (s->pict_type != B_TYPE) {
-            UINT8 *mbskip_ptr = &s->mbskip_table[mb_xy];
-            if (s->mb_skiped) {
-                s->mb_skiped = 0;
+            s->current_picture.mbskip_table[mb_xy]= s->mb_skiped;
+        }
+
+        /* skip only during decoding as we might trash the buffers during encoding a bit */
+        if(!s->encoding){
+            uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
+            const int age= s->current_picture.age;
 
+            assert(age);
+
+            if (s->mb_skiped) {
+                s->mb_skiped= 0;
+                assert(s->pict_type!=I_TYPE);
                 (*mbskip_ptr) ++; /* indicate that this time we skiped it */
                 if(*mbskip_ptr >99) *mbskip_ptr= 99;
 
-                /* if previous was skipped too, then nothing to do ! 
-                   skip only during decoding as we might trash the buffers during encoding a bit */
-                if (*mbskip_ptr >= s->ip_buffer_count  && !s->encoding) 
+                /* if previous was skipped too, then nothing to do !  */
+                if (*mbskip_ptr >= age && s->current_picture.reference){
                     return;
-            } else {
+                }
+            } else if(!s->current_picture.reference){
+                (*mbskip_ptr) ++; /* increase counter so the age can be compared cleanly */
+                if(*mbskip_ptr >99) *mbskip_ptr= 99;
+            } else{
                 *mbskip_ptr = 0; /* not skipped */
             }
-        }
+        }else
+            s->mb_skiped= 0;
 
-        if(s->pict_type==B_TYPE && s->avctx->draw_horiz_band){
-            dest_y = s->current_picture [0] + mb_x * 16;
-            dest_cb = s->current_picture[1] + mb_x * 8;
-            dest_cr = s->current_picture[2] + mb_x * 8;
+        if(s->pict_type==B_TYPE && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME){ //FIXME precalc
+            dest_y  = s->current_picture.data[0] + mb_x * 16;
+            dest_cb = s->current_picture.data[1] + mb_x * 8;
+            dest_cr = s->current_picture.data[2] + mb_x * 8;
         }else{
-            dest_y = s->current_picture [0] + (mb_y * 16* s->linesize  ) + mb_x * 16;
-            dest_cb = s->current_picture[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
-            dest_cr = s->current_picture[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
+            dest_y  = s->current_picture.data[0] + (mb_y * 16* linesize  ) + mb_x * 16;
+            dest_cb = s->current_picture.data[1] + (mb_y * 8 * uvlinesize) + mb_x * 8;
+            dest_cr = s->current_picture.data[2] + (mb_y * 8 * uvlinesize) + mb_x * 8;
         }
 
         if (s->interlaced_dct) {
-            dct_linesize = s->linesize * 2;
-            dct_offset = s->linesize;
+            dct_linesize = linesize * 2;
+            dct_offset = linesize;
         } else {
-            dct_linesize = s->linesize;
-            dct_offset = s->linesize * 8;
+            dct_linesize = linesize;
+            dct_offset = linesize * 8;
         }
 
         if (!s->mb_intra) {
@@ -1860,20 +2505,20 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
             /* decoding or more than one mb_type (MC was allready done otherwise) */
             if((!s->encoding) || (s->mb_type[mb_xy]&(s->mb_type[mb_xy]-1))){
                 if ((!s->no_rounding) || s->pict_type==B_TYPE){                
-                    op_pix = put_pixels_tab;
-                    op_qpix= put_qpel_pixels_tab;
+                   op_pix = s->dsp.put_pixels_tab;
+                    op_qpix= s->dsp.put_qpel_pixels_tab;
                 }else{
-                    op_pix = put_no_rnd_pixels_tab;
-                    op_qpix= put_no_rnd_qpel_pixels_tab;
+                    op_pix = s->dsp.put_no_rnd_pixels_tab;
+                    op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
                 }
 
                 if (s->mv_dir & MV_DIR_FORWARD) {
-                    MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
-                    op_pix = avg_pixels_tab;
-                    op_qpix= avg_qpel_pixels_tab;
+                    MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
+                   op_pix = s->dsp.avg_pixels_tab;
+                    op_qpix= s->dsp.avg_qpel_pixels_tab;
                 }
                 if (s->mv_dir & MV_DIR_BACKWARD) {
-                    MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
+                    MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
                 }
             }
 
@@ -1889,20 +2534,25 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
                 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
 
                 if(!(s->flags&CODEC_FLAG_GRAY)){
-                    add_dequant_dct(s, block[4], 4, dest_cb, s->uvlinesize);
-                    add_dequant_dct(s, block[5], 5, dest_cr, s->uvlinesize);
+                    add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize);
+                    add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize);
                 }
-            } else {
+            } else if(s->codec_id != CODEC_ID_WMV2){
                 add_dct(s, block[0], 0, dest_y, dct_linesize);
                 add_dct(s, block[1], 1, dest_y + 8, dct_linesize);
                 add_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
                 add_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
 
                 if(!(s->flags&CODEC_FLAG_GRAY)){
-                    add_dct(s, block[4], 4, dest_cb, s->uvlinesize);
-                    add_dct(s, block[5], 5, dest_cr, s->uvlinesize);
+                    add_dct(s, block[4], 4, dest_cb, uvlinesize);
+                    add_dct(s, block[5], 5, dest_cr, uvlinesize);
                 }
+            } 
+#ifdef CONFIG_RISKY
+            else{
+                ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
             }
+#endif
         } else {
             /* dct only in intra block */
             if(s->encoding || !(s->mpeg2 || s->codec_id==CODEC_ID_MPEG1VIDEO)){
@@ -1912,24 +2562,26 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
                 put_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
 
                 if(!(s->flags&CODEC_FLAG_GRAY)){
-                    put_dct(s, block[4], 4, dest_cb, s->uvlinesize);
-                    put_dct(s, block[5], 5, dest_cr, s->uvlinesize);
+                    put_dct(s, block[4], 4, dest_cb, uvlinesize);
+                    put_dct(s, block[5], 5, dest_cr, uvlinesize);
                 }
             }else{
-                s->idct_put(dest_y                 , dct_linesize, block[0]);
-                s->idct_put(dest_y              + 8, dct_linesize, block[1]);
-                s->idct_put(dest_y + dct_offset    , dct_linesize, block[2]);
-                s->idct_put(dest_y + dct_offset + 8, dct_linesize, block[3]);
+                s->dsp.idct_put(dest_y                 , dct_linesize, block[0]);
+                s->dsp.idct_put(dest_y              + 8, dct_linesize, block[1]);
+                s->dsp.idct_put(dest_y + dct_offset    , dct_linesize, block[2]);
+                s->dsp.idct_put(dest_y + dct_offset + 8, dct_linesize, block[3]);
 
                 if(!(s->flags&CODEC_FLAG_GRAY)){
-                    s->idct_put(dest_cb, s->uvlinesize, block[4]);
-                    s->idct_put(dest_cr, s->uvlinesize, block[5]);
+                    s->dsp.idct_put(dest_cb, uvlinesize, block[4]);
+                    s->dsp.idct_put(dest_cr, uvlinesize, block[5]);
                 }
             }
         }
     }
 }
 
+#ifdef CONFIG_ENCODERS
+
 static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
 {
     static const char tab[64]=
@@ -1996,80 +2648,13 @@ static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index
        
         if     (level>maxlevel) level=maxlevel;
         else if(level<minlevel) level=minlevel;
-        block[j]= level;
-    }
-}
-
-static inline void requantize_coeffs(MpegEncContext *s, DCTELEM block[64], int oldq, int newq, int n)
-{
-    int i;
-
-    if(s->mb_intra){
-        i=1; //skip clipping of intra dc
-         //FIXME requantize, note (mpeg1/h263/h263p-aic dont need it,...)
-    }else
-        i=0;
-    
-    for(;i<=s->block_last_index[n]; i++){
-        const int j = s->intra_scantable.permutated[i];
-        int level = block[j];
-        
-        block[j]= ROUNDED_DIV(level*oldq, newq);
-    }
 
-    for(i=s->block_last_index[n]; i>=0; i--){
-        const int j = s->intra_scantable.permutated[i];
-        if(block[j]) break;
+        block[j]= level;
     }
-    s->block_last_index[n]= i;
 }
 
-static inline void auto_requantize_coeffs(MpegEncContext *s, DCTELEM block[6][64])
-{
-    int i,n, newq;
-    const int maxlevel= s->max_qcoeff;
-    const int minlevel= s->min_qcoeff;
-    int largest=0, smallest=0;
-
-    assert(s->adaptive_quant);
-    
-    for(n=0; n<6; n++){
-        if(s->mb_intra){
-            i=1; //skip clipping of intra dc
-             //FIXME requantize, note (mpeg1/h263/h263p-aic dont need it,...)
-        }else
-            i=0;
-
-        for(;i<=s->block_last_index[n]; i++){
-            const int j = s->intra_scantable.permutated[i];
-            int level = block[n][j];
-            if(largest  < level) largest = level;
-            if(smallest > level) smallest= level;
-        }
-    }
-    
-    for(newq=s->qscale+1; newq<32; newq++){
-        if(   ROUNDED_DIV(smallest*s->qscale, newq) >= minlevel
-           && ROUNDED_DIV(largest *s->qscale, newq) <= maxlevel) 
-            break;
-    }
-        
-    if(s->out_format==FMT_H263){
-        /* h263 like formats cannot change qscale by more than 2 easiely */
-        if(s->avctx->qmin + 2 < newq)
-            newq= s->avctx->qmin + 2;
-    }
-
-    for(n=0; n<6; n++){
-        requantize_coeffs(s, block[n], s->qscale, newq, n);
-        clip_coeffs(s, block[n], s->block_last_index[n]);
-    }
-     
-    s->dquant+= newq - s->qscale;
-    s->qscale= newq;
-}
 #if 0
-static int pix_vcmp16x8(UINT8 *s, int stride){ //FIXME move to dsputil & optimize
+static int pix_vcmp16x8(uint8_t *s, int stride){ //FIXME move to dsputil & optimize
     int score=0;
     int x,y;
     
@@ -2084,7 +2669,7 @@ static int pix_vcmp16x8(UINT8 *s, int stride){ //FIXME move to dsputil & optimiz
     return score;
 }
 
-static int pix_diff_vcmp16x8(UINT8 *s1, UINT8*s2, int stride){ //FIXME move to dsputil & optimize
+static int pix_diff_vcmp16x8(uint8_t *s1, uint8_t*s2, int stride){ //FIXME move to dsputil & optimize
     int score=0;
     int x,y;
     
@@ -2101,7 +2686,7 @@ static int pix_diff_vcmp16x8(UINT8 *s1, UINT8*s2, int stride){ //FIXME move to d
 #else
 #define SQ(a) ((a)*(a))
 
-static int pix_vcmp16x8(UINT8 *s, int stride){ //FIXME move to dsputil & optimize
+static int pix_vcmp16x8(uint8_t *s, int stride){ //FIXME move to dsputil & optimize
     int score=0;
     int x,y;
     
@@ -2116,7 +2701,7 @@ static int pix_vcmp16x8(UINT8 *s, int stride){ //FIXME move to dsputil & optimiz
     return score;
 }
 
-static int pix_diff_vcmp16x8(UINT8 *s1, UINT8*s2, int stride){ //FIXME move to dsputil & optimize
+static int pix_diff_vcmp16x8(uint8_t *s1, uint8_t*s2, int stride){ //FIXME move to dsputil & optimize
     int score=0;
     int x,y;
     
@@ -2133,29 +2718,32 @@ static int pix_diff_vcmp16x8(UINT8 *s1, UINT8*s2, int stride){ //FIXME move to d
 
 #endif
 
-void ff_draw_horiz_band(MpegEncContext *s){
+#endif //CONFIG_ENCODERS
+
+/**
+ *
+ * @param h is the normal height, this will be reduced automatically if needed for the last row
+ */
+void ff_draw_horiz_band(MpegEncContext *s, int y, int h){
     if (    s->avctx->draw_horiz_band 
-        && (s->num_available_buffers>=1 || (!s->has_b_frames)) ) {
-        UINT8 *src_ptr[3];
-        int y, h, offset;
-        y = s->mb_y * 16;
-        h = s->height - y;
-        if (h > 16)
-            h = 16;
-
-        if(s->pict_type==B_TYPE)
+        && (s->last_picture_ptr || s->low_delay) ) {
+        uint8_t *src_ptr[3];
+        int offset;
+        h= FFMIN(h, s->height - y);
+
+        if(s->pict_type==B_TYPE && s->picture_structure == PICT_FRAME)
             offset = 0;
         else
             offset = y * s->linesize;
 
-        if(s->pict_type==B_TYPE || (!s->has_b_frames)){
-            src_ptr[0] = s->current_picture[0] + offset;
-            src_ptr[1] = s->current_picture[1] + (offset >> 2);
-            src_ptr[2] = s->current_picture[2] + (offset >> 2);
+        if(s->pict_type==B_TYPE || s->low_delay){
+            src_ptr[0] = s->current_picture.data[0] + offset;
+            src_ptr[1] = s->current_picture.data[1] + (offset >> 2);
+            src_ptr[2] = s->current_picture.data[2] + (offset >> 2);
         } else {
-            src_ptr[0] = s->last_picture[0] + offset;
-            src_ptr[1] = s->last_picture[1] + (offset >> 2);
-            src_ptr[2] = s->last_picture[2] + (offset >> 2);
+            src_ptr[0] = s->last_picture.data[0] + offset;
+            src_ptr[1] = s->last_picture.data[1] + (offset >> 2);
+            src_ptr[2] = s->last_picture.data[2] + (offset >> 2);
         }
         emms_c();
 
@@ -2164,6 +2752,8 @@ void ff_draw_horiz_band(MpegEncContext *s){
     }
 }
 
+#ifdef CONFIG_ENCODERS
+
 static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
 {
     const int mb_x= s->mb_x;
@@ -2175,7 +2765,7 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
     for(i=0; i<6; i++) skip_dct[i]=0;
     
     if(s->adaptive_quant){
-        s->dquant= s->qscale_table[mb_x + mb_y*s->mb_width] - s->qscale;
+        s->dquant= s->current_picture.qscale_table[mb_x + mb_y*s->mb_stride] - s->qscale;
 
         if(s->out_format==FMT_H263){
             if     (s->dquant> 2) s->dquant= 2;
@@ -2184,10 +2774,10 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
             
         if(s->codec_id==CODEC_ID_MPEG4){        
             if(!s->mb_intra){
-                assert(s->dquant==0 || s->mv_type!=MV_TYPE_8X8);
-
                 if(s->mv_dir&MV_DIRECT)
                     s->dquant=0;
+
+                assert(s->dquant==0 || s->mv_type!=MV_TYPE_8X8);
             }
         }
         s->qscale+= s->dquant;
@@ -2196,15 +2786,15 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
     }
 
     if (s->mb_intra) {
-        UINT8 *ptr;
+        uint8_t *ptr;
         int wrap_y;
         int emu=0;
 
         wrap_y = s->linesize;
-        ptr = s->new_picture[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
+        ptr = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
 
         if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
-            emulated_edge_mc(s, ptr, wrap_y, 16, 16, mb_x*16, mb_y*16, s->width, s->height);
+            ff_emulated_edge_mc(s->edge_emu_buffer, ptr, wrap_y, 16, 16, mb_x*16, mb_y*16, s->width, s->height);
             ptr= s->edge_emu_buffer;
             emu=1;
         }
@@ -2224,66 +2814,66 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
                 s->interlaced_dct=0;
         }
         
-        get_pixels(s->block[0], ptr                 , wrap_y);
-        get_pixels(s->block[1], ptr              + 8, wrap_y);
-        get_pixels(s->block[2], ptr + dct_offset    , wrap_y);
-        get_pixels(s->block[3], ptr + dct_offset + 8, wrap_y);
+       s->dsp.get_pixels(s->block[0], ptr                 , wrap_y);
+        s->dsp.get_pixels(s->block[1], ptr              + 8, wrap_y);
+        s->dsp.get_pixels(s->block[2], ptr + dct_offset    , wrap_y);
+        s->dsp.get_pixels(s->block[3], ptr + dct_offset + 8, wrap_y);
 
         if(s->flags&CODEC_FLAG_GRAY){
             skip_dct[4]= 1;
             skip_dct[5]= 1;
         }else{
             int wrap_c = s->uvlinesize;
-            ptr = s->new_picture[1] + (mb_y * 8 * wrap_c) + mb_x * 8;
+            ptr = s->new_picture.data[1] + (mb_y * 8 * wrap_c) + mb_x * 8;
             if(emu){
-                emulated_edge_mc(s, ptr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
+                ff_emulated_edge_mc(s->edge_emu_buffer, ptr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
                 ptr= s->edge_emu_buffer;
             }
-            get_pixels(s->block[4], ptr, wrap_c);
+           s->dsp.get_pixels(s->block[4], ptr, wrap_c);
 
-            ptr = s->new_picture[2] + (mb_y * 8 * wrap_c) + mb_x * 8;
+            ptr = s->new_picture.data[2] + (mb_y * 8 * wrap_c) + mb_x * 8;
             if(emu){
-                emulated_edge_mc(s, ptr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
+                ff_emulated_edge_mc(s->edge_emu_buffer, ptr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
                 ptr= s->edge_emu_buffer;
             }
-            get_pixels(s->block[5], ptr, wrap_c);
+            s->dsp.get_pixels(s->block[5], ptr, wrap_c);
         }
     }else{
         op_pixels_func (*op_pix)[4];
         qpel_mc_func (*op_qpix)[16];
-        UINT8 *dest_y, *dest_cb, *dest_cr;
-        UINT8 *ptr_y, *ptr_cb, *ptr_cr;
+        uint8_t *dest_y, *dest_cb, *dest_cr;
+        uint8_t *ptr_y, *ptr_cb, *ptr_cr;
         int wrap_y, wrap_c;
         int emu=0;
 
-        dest_y  = s->current_picture[0] + (mb_y * 16 * s->linesize       ) + mb_x * 16;
-        dest_cb = s->current_picture[1] + (mb_y * 8  * (s->uvlinesize)) + mb_x * 8;
-        dest_cr = s->current_picture[2] + (mb_y * 8  * (s->uvlinesize)) + mb_x * 8;
+        dest_y  = s->current_picture.data[0] + (mb_y * 16 * s->linesize    ) + mb_x * 16;
+        dest_cb = s->current_picture.data[1] + (mb_y * 8  * (s->uvlinesize)) + mb_x * 8;
+        dest_cr = s->current_picture.data[2] + (mb_y * 8  * (s->uvlinesize)) + mb_x * 8;
         wrap_y = s->linesize;
         wrap_c = s->uvlinesize;
-        ptr_y  = s->new_picture[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
-        ptr_cb = s->new_picture[1] + (mb_y * 8 * wrap_c) + mb_x * 8;
-        ptr_cr = s->new_picture[2] + (mb_y * 8 * wrap_c) + mb_x * 8;
+        ptr_y  = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
+        ptr_cb = s->new_picture.data[1] + (mb_y * 8 * wrap_c) + mb_x * 8;
+        ptr_cr = s->new_picture.data[2] + (mb_y * 8 * wrap_c) + mb_x * 8;
 
         if ((!s->no_rounding) || s->pict_type==B_TYPE){
-            op_pix = put_pixels_tab;
-            op_qpix= put_qpel_pixels_tab;
+           op_pix = s->dsp.put_pixels_tab;
+            op_qpix= s->dsp.put_qpel_pixels_tab;
         }else{
-            op_pix = put_no_rnd_pixels_tab;
-            op_qpix= put_no_rnd_qpel_pixels_tab;
+            op_pix = s->dsp.put_no_rnd_pixels_tab;
+            op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
         }
 
         if (s->mv_dir & MV_DIR_FORWARD) {
-            MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
-            op_pix = avg_pixels_tab;
-            op_qpix= avg_qpel_pixels_tab;
+            MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
+            op_pix = s->dsp.avg_pixels_tab;
+            op_qpix= s->dsp.avg_qpel_pixels_tab;
         }
         if (s->mv_dir & MV_DIR_BACKWARD) {
-            MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
+            MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
         }
 
         if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
-            emulated_edge_mc(s, ptr_y, wrap_y, 16, 16, mb_x*16, mb_y*16, s->width, s->height);
+            ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, wrap_y, 16, 16, mb_x*16, mb_y*16, s->width, s->height);
             ptr_y= s->edge_emu_buffer;
             emu=1;
         }
@@ -2305,36 +2895,35 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
                 s->interlaced_dct=0;
         }
         
-        diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
-        diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
-        diff_pixels(s->block[2], ptr_y + dct_offset    , dest_y + dct_offset    , wrap_y);
-        diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
+       s->dsp.diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
+        s->dsp.diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
+        s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset    , dest_y + dct_offset    , wrap_y);
+        s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
         
         if(s->flags&CODEC_FLAG_GRAY){
             skip_dct[4]= 1;
             skip_dct[5]= 1;
         }else{
             if(emu){
-                emulated_edge_mc(s, ptr_cb, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
+                ff_emulated_edge_mc(s->edge_emu_buffer, ptr_cb, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
                 ptr_cb= s->edge_emu_buffer;
             }
-            diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
+            s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
             if(emu){
-                emulated_edge_mc(s, ptr_cr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
+                ff_emulated_edge_mc(s->edge_emu_buffer, ptr_cr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
                 ptr_cr= s->edge_emu_buffer;
             }
-            diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
+            s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
         }
-
         /* pre quantization */         
-        if(s->mc_mb_var[s->mb_width*mb_y+ mb_x]<2*s->qscale*s->qscale){
+        if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
             //FIXME optimize
-            if(pix_abs8x8(ptr_y               , dest_y               , wrap_y) < 20*s->qscale) skip_dct[0]= 1;
-            if(pix_abs8x8(ptr_y            + 8, dest_y            + 8, wrap_y) < 20*s->qscale) skip_dct[1]= 1;
-            if(pix_abs8x8(ptr_y +dct_offset   , dest_y +dct_offset   , wrap_y) < 20*s->qscale) skip_dct[2]= 1;
-            if(pix_abs8x8(ptr_y +dct_offset+ 8, dest_y +dct_offset+ 8, wrap_y) < 20*s->qscale) skip_dct[3]= 1;
-            if(pix_abs8x8(ptr_cb              , dest_cb              , wrap_y) < 20*s->qscale) skip_dct[4]= 1;
-            if(pix_abs8x8(ptr_cr              , dest_cr              , wrap_y) < 20*s->qscale) skip_dct[5]= 1;
+           if(s->dsp.pix_abs8x8(ptr_y               , dest_y               , wrap_y) < 20*s->qscale) skip_dct[0]= 1;
+            if(s->dsp.pix_abs8x8(ptr_y            + 8, dest_y            + 8, wrap_y) < 20*s->qscale) skip_dct[1]= 1;
+            if(s->dsp.pix_abs8x8(ptr_y +dct_offset   , dest_y +dct_offset   , wrap_y) < 20*s->qscale) skip_dct[2]= 1;
+            if(s->dsp.pix_abs8x8(ptr_y +dct_offset+ 8, dest_y +dct_offset+ 8, wrap_y) < 20*s->qscale) skip_dct[3]= 1;
+            if(s->dsp.pix_abs8x8(ptr_cb              , dest_cb              , wrap_c) < 20*s->qscale) skip_dct[4]= 1;
+            if(s->dsp.pix_abs8x8(ptr_cr              , dest_cr              , wrap_c) < 20*s->qscale) skip_dct[5]= 1;
 #if 0
 {
  static int stat[7];
@@ -2358,13 +2947,13 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
             {
                 float adap_parm;
                 
-                adap_parm = ((s->avg_mb_var << 1) + s->mb_var[s->mb_width*mb_y+mb_x] + 1.0) /
-                            ((s->mb_var[s->mb_width*mb_y+mb_x] << 1) + s->avg_mb_var + 1.0);
+                adap_parm = ((s->avg_mb_var << 1) + s->mb_var[s->mb_stride*mb_y+mb_x] + 1.0) /
+                            ((s->mb_var[s->mb_stride*mb_y+mb_x] << 1) + s->avg_mb_var + 1.0);
             
                 printf("\ntype=%c qscale=%2d adap=%0.2f dquant=%4.2f var=%4d avgvar=%4d", 
-                        (s->mb_type[s->mb_width*mb_y+mb_x] > 0) ? 'I' : 'P', 
+                        (s->mb_type[s->mb_stride*mb_y+mb_x] > 0) ? 'I' : 'P', 
                         s->qscale, adap_parm, s->qscale*adap_parm,
-                        s->mb_var[s->mb_width*mb_y+mb_x], s->avg_mb_var);
+                        s->mb_var[s->mb_stride*mb_y+mb_x], s->avg_mb_var);
             }
 #endif
     /* DCT & quantize */
@@ -2394,35 +2983,101 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
                 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
     }
 
-    if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
-        s->block_last_index[4]=
-        s->block_last_index[5]= 0;
-        s->block[4][0]=
-        s->block[5][0]= 128;
+    if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
+        s->block_last_index[4]=
+        s->block_last_index[5]= 0;
+        s->block[4][0]=
+        s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
+    }
+
+    /* huffman encode */
+    switch(s->codec_id){ //FIXME funct ptr could be slightly faster
+    case CODEC_ID_MPEG1VIDEO:
+        mpeg1_encode_mb(s, s->block, motion_x, motion_y); break;
+#ifdef CONFIG_RISKY
+    case CODEC_ID_MPEG4:
+        mpeg4_encode_mb(s, s->block, motion_x, motion_y); break;
+    case CODEC_ID_MSMPEG4V2:
+    case CODEC_ID_MSMPEG4V3:
+    case CODEC_ID_WMV1:
+        msmpeg4_encode_mb(s, s->block, motion_x, motion_y); break;
+    case CODEC_ID_WMV2:
+         ff_wmv2_encode_mb(s, s->block, motion_x, motion_y); break;
+    case CODEC_ID_H263:
+    case CODEC_ID_H263P:
+    case CODEC_ID_FLV1:
+    case CODEC_ID_RV10:
+        h263_encode_mb(s, s->block, motion_x, motion_y); break;
+#endif
+    case CODEC_ID_MJPEG:
+        mjpeg_encode_mb(s, s->block); break;
+    default:
+        assert(0);
+    }
+}
+
+#endif //CONFIG_ENCODERS
+
+/**
+ * combines the (truncated) bitstream to a complete frame
+ * @returns -1 if no complete frame could be created
+ */
+int ff_combine_frame( MpegEncContext *s, int next, uint8_t **buf, int *buf_size){
+    ParseContext *pc= &s->parse_context;
+
+#if 0
+    if(pc->overread){
+        printf("overread %d, state:%X next:%d index:%d o_index:%d\n", pc->overread, pc->state, next, pc->index, pc->overread_index);
+        printf("%X %X %X %X\n", (*buf)[0], (*buf)[1],(*buf)[2],(*buf)[3]);
+    }
+#endif
+
+    /* copy overreaded byes from last frame into buffer */
+    for(; pc->overread>0; pc->overread--){
+        pc->buffer[pc->index++]= pc->buffer[pc->overread_index++];
     }
+    
+    pc->last_index= pc->index;
 
-#ifdef CONFIG_ENCODERS
-    /* huffman encode */
-    switch(s->out_format) {
-    case FMT_MPEG1:
-        mpeg1_encode_mb(s, s->block, motion_x, motion_y);
-        break;
-    case FMT_H263:
-        if (s->h263_msmpeg4)
-            msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
-        else if(s->h263_pred)
-            mpeg4_encode_mb(s, s->block, motion_x, motion_y);
-        else
-            h263_encode_mb(s, s->block, motion_x, motion_y);
-        break;
-    case FMT_MJPEG:
-        mjpeg_encode_mb(s, s->block);
-        break;
+    /* copy into buffer end return */
+    if(next == END_NOT_FOUND){
+        pc->buffer= av_fast_realloc(pc->buffer, &pc->buffer_size, (*buf_size) + pc->index + FF_INPUT_BUFFER_PADDING_SIZE);
+
+        memcpy(&pc->buffer[pc->index], *buf, *buf_size);
+        pc->index += *buf_size;
+        return -1;
+    }
+
+    *buf_size=
+    pc->overread_index= pc->index + next;
+    
+    /* append to buffer */
+    if(pc->index){
+        pc->buffer= av_fast_realloc(pc->buffer, &pc->buffer_size, next + pc->index + FF_INPUT_BUFFER_PADDING_SIZE);
+
+        memcpy(&pc->buffer[pc->index], *buf, next + FF_INPUT_BUFFER_PADDING_SIZE );
+        pc->index = 0;
+        *buf= pc->buffer;
+    }
+
+    /* store overread bytes */
+    for(;next < 0; next++){
+        pc->state = (pc->state<<8) | pc->buffer[pc->last_index + next];
+        pc->overread++;
+    }
+
+#if 0
+    if(pc->overread){
+        printf("overread %d, state:%X next:%d index:%d o_index:%d\n", pc->overread, pc->state, next, pc->index, pc->overread_index);
+        printf("%X %X %X %X\n", (*buf)[0], (*buf)[1],(*buf)[2],(*buf)[3]);
     }
 #endif
+
+    return 0;
 }
 
-void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length)
+#ifdef CONFIG_ENCODERS
+void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length)
 {
     int bytes= length>>4;
     int bits= length&15;
@@ -2440,7 +3095,7 @@ static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext
     memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
 
     /* mpeg1 */
-    d->mb_incr= s->mb_incr;
+    d->mb_skip_run= s->mb_skip_run;
     for(i=0; i<3; i++)
         d->last_dc[i]= s->last_dc[i];
     
@@ -2456,6 +3111,7 @@ static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext
     d->last_bits= 0;
 
     d->mb_skiped= s->mb_skiped;
+    d->qscale= s->qscale;
 }
 
 static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
@@ -2465,7 +3121,7 @@ static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *
     memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
     
     /* mpeg1 */
-    d->mb_incr= s->mb_incr;
+    d->mb_skip_run= s->mb_skip_run;
     for(i=0; i<3; i++)
         d->last_dc[i]= s->last_dc[i];
     
@@ -2492,6 +3148,7 @@ static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *
     for(i=0; i<6; i++)
         d->block_last_index[i]= s->block_last_index[i];
     d->interlaced_dct= s->interlaced_dct;
+    d->qscale= s->qscale;
 }
 
 static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type, 
@@ -2524,6 +3181,27 @@ static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegE
         copy_context_after_encode(best, s, type);
     }
 }
+                
+static inline int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
+    uint32_t *sq = squareTbl + 256;
+    int acc=0;
+    int x,y;
+    
+    if(w==16 && h==16) 
+        return s->dsp.sse[0](NULL, src1, src2, stride);
+    else if(w==8 && h==8)
+        return s->dsp.sse[1](NULL, src1, src2, stride);
+    
+    for(y=0; y<h; y++){
+        for(x=0; x<w; x++){
+            acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
+        } 
+    }
+    
+    assert(acc>=0);
+    
+    return acc;
+}
 
 static void encode_picture(MpegEncContext *s, int picture_number)
 {
@@ -2531,9 +3209,9 @@ static void encode_picture(MpegEncContext *s, int picture_number)
     int i;
     int bits;
     MpegEncContext best_s, backup_s;
-    UINT8 bit_buf[2][3000];
-    UINT8 bit_buf2[2][3000];
-    UINT8 bit_buf_tex[2][3000];
+    uint8_t bit_buf[2][3000];
+    uint8_t bit_buf2[2][3000];
+    uint8_t bit_buf_tex[2][3000];
     PutBitContext pb[2], pb2[2], tex_pb[2];
 
     for(i=0; i<2; i++){
@@ -2543,28 +3221,50 @@ static void encode_picture(MpegEncContext *s, int picture_number)
     }
 
     s->picture_number = picture_number;
-
-    s->block_wrap[0]=
-    s->block_wrap[1]=
-    s->block_wrap[2]=
-    s->block_wrap[3]= s->mb_width*2 + 2;
-    s->block_wrap[4]=
-    s->block_wrap[5]= s->mb_width + 2;
     
     /* Reset the average MB variance */
-    s->mb_var_sum = 0;
-    s->mc_mb_var_sum = 0;
+    s->current_picture.mb_var_sum = 0;
+    s->current_picture.mc_mb_var_sum = 0;
 
+#ifdef CONFIG_RISKY
     /* we need to initialize some time vars before we can encode b-frames */
-    if (s->h263_pred && !s->h263_msmpeg4)
+    // RAL: Condition added for MPEG1VIDEO
+    if (s->codec_id == CODEC_ID_MPEG1VIDEO || (s->h263_pred && !s->h263_msmpeg4))
         ff_set_mpeg4_time(s, s->picture_number); 
-
+#endif
+        
     s->scene_change_score=0;
     
     s->qscale= (int)(s->frame_qscale + 0.5); //FIXME qscale / ... stuff for ME ratedistoration
-
+    
+    if(s->pict_type==I_TYPE){
+        if(s->msmpeg4_version >= 3) s->no_rounding=1;
+        else                        s->no_rounding=0;
+    }else if(s->pict_type!=B_TYPE){
+        if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
+            s->no_rounding ^= 1;          
+    }
+    
     /* Estimate motion for every MB */
+    s->mb_intra=0; //for the rate distoration & bit compare functions
     if(s->pict_type != I_TYPE){
+        if(s->pict_type != B_TYPE){
+            if((s->avctx->pre_me && s->last_non_b_pict_type==I_TYPE) || s->avctx->pre_me==2){
+                s->me.pre_pass=1;
+                s->me.dia_size= s->avctx->pre_dia_size;
+
+                for(mb_y=s->mb_height-1; mb_y >=0 ; mb_y--) {
+                    for(mb_x=s->mb_width-1; mb_x >=0 ; mb_x--) {
+                        s->mb_x = mb_x;
+                        s->mb_y = mb_y;
+                        ff_pre_estimate_p_frame_motion(s, mb_x, mb_y);
+                    }
+                }
+                s->me.pre_pass=0;
+            }
+        }
+
+        s->me.dia_size= s->avctx->dia_size;
         for(mb_y=0; mb_y < s->mb_height; mb_y++) {
             s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
             s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
@@ -2577,21 +3277,20 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                 s->block_index[1]+=2;
                 s->block_index[2]+=2;
                 s->block_index[3]+=2;
-
+                
                 /* compute motion vector & mb_type and store in context */
                 if(s->pict_type==B_TYPE)
                     ff_estimate_b_frame_motion(s, mb_x, mb_y);
                 else
                     ff_estimate_p_frame_motion(s, mb_x, mb_y);
-//                s->mb_type[mb_y*s->mb_width + mb_x]=MB_TYPE_INTER;
             }
         }
     }else /* if(s->pict_type == I_TYPE) */{
         /* I-Frame */
         //FIXME do we need to zero them?
-        memset(s->motion_val[0], 0, sizeof(INT16)*(s->mb_width*2 + 2)*(s->mb_height*2 + 2)*2);
-        memset(s->p_mv_table   , 0, sizeof(INT16)*(s->mb_width+2)*(s->mb_height+2)*2);
-        memset(s->mb_type      , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
+        memset(s->motion_val[0], 0, sizeof(int16_t)*(s->mb_width*2 + 2)*(s->mb_height*2 + 2)*2);
+        memset(s->p_mv_table   , 0, sizeof(int16_t)*(s->mb_stride)*s->mb_height*2);
+        memset(s->mb_type      , MB_TYPE_INTRA, sizeof(uint8_t)*s->mb_stride*s->mb_height);
         
         if(!s->fixed_qscale){
             /* finding spatial complexity for I-frame rate control */
@@ -2599,15 +3298,15 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
                     int xx = mb_x * 16;
                     int yy = mb_y * 16;
-                    uint8_t *pix = s->new_picture[0] + (yy * s->linesize) + xx;
+                    uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
                     int varc;
-                    int sum = pix_sum(pix, s->linesize);
+                   int sum = s->dsp.pix_sum(pix, s->linesize);
     
-                    varc = (pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
+                   varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
 
-                    s->mb_var [s->mb_width * mb_y + mb_x] = varc;
-                    s->mb_mean[s->mb_width * mb_y + mb_x] = (sum+128)>>8;
-                    s->mb_var_sum    += varc;
+                    s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
+                    s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
+                    s->current_picture.mb_var_sum    += varc;
                 }
             }
         }
@@ -2616,44 +3315,55 @@ static void encode_picture(MpegEncContext *s, int picture_number)
 
     if(s->scene_change_score > 0 && s->pict_type == P_TYPE){
         s->pict_type= I_TYPE;
-        memset(s->mb_type   , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
-        if(s->max_b_frames==0){
-            s->input_pict_type= I_TYPE;
-            s->input_picture_in_gop_number=0;
-        }
-//printf("Scene change detected, encoding as I Frame %d %d\n", s->mb_var_sum, s->mc_mb_var_sum);
+        memset(s->mb_type   , MB_TYPE_INTRA, sizeof(uint8_t)*s->mb_stride*s->mb_height);
+//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
     }
-    
-    if(s->pict_type==P_TYPE || s->pict_type==S_TYPE) 
-        s->f_code= ff_get_best_fcode(s, s->p_mv_table, MB_TYPE_INTER);
-        ff_fix_long_p_mvs(s);
-    if(s->pict_type==B_TYPE){
-        s->f_code= ff_get_best_fcode(s, s->b_forw_mv_table, MB_TYPE_FORWARD);
-        s->b_code= ff_get_best_fcode(s, s->b_back_mv_table, MB_TYPE_BACKWARD);
 
-        ff_fix_long_b_mvs(s, s->b_forw_mv_table, s->f_code, MB_TYPE_FORWARD);
-        ff_fix_long_b_mvs(s, s->b_back_mv_table, s->b_code, MB_TYPE_BACKWARD);
-        ff_fix_long_b_mvs(s, s->b_bidir_forw_mv_table, s->f_code, MB_TYPE_BIDIR);
-        ff_fix_long_b_mvs(s, s->b_bidir_back_mv_table, s->b_code, MB_TYPE_BIDIR);
+    if(!s->umvplus){
+        if(s->pict_type==P_TYPE || s->pict_type==S_TYPE) {
+            s->f_code= ff_get_best_fcode(s, s->p_mv_table, MB_TYPE_INTER);
+        
+            ff_fix_long_p_mvs(s);
+        }
+
+        if(s->pict_type==B_TYPE){
+            int a, b;
+
+            a = ff_get_best_fcode(s, s->b_forw_mv_table, MB_TYPE_FORWARD);
+            b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, MB_TYPE_BIDIR);
+            s->f_code = FFMAX(a, b);
+
+            a = ff_get_best_fcode(s, s->b_back_mv_table, MB_TYPE_BACKWARD);
+            b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, MB_TYPE_BIDIR);
+            s->b_code = FFMAX(a, b);
+
+            ff_fix_long_b_mvs(s, s->b_forw_mv_table, s->f_code, MB_TYPE_FORWARD);
+            ff_fix_long_b_mvs(s, s->b_back_mv_table, s->b_code, MB_TYPE_BACKWARD);
+            ff_fix_long_b_mvs(s, s->b_bidir_forw_mv_table, s->f_code, MB_TYPE_BIDIR);
+            ff_fix_long_b_mvs(s, s->b_bidir_back_mv_table, s->b_code, MB_TYPE_BIDIR);
+        }
     }
     
     if (s->fixed_qscale) 
-        s->frame_qscale = s->avctx->quality;
+        s->frame_qscale = s->current_picture.quality;
     else
         s->frame_qscale = ff_rate_estimate_qscale(s);
 
     if(s->adaptive_quant){
+#ifdef CONFIG_RISKY
         switch(s->codec_id){
         case CODEC_ID_MPEG4:
             ff_clean_mpeg4_qscales(s);
             break;
         case CODEC_ID_H263:
         case CODEC_ID_H263P:
+        case CODEC_ID_FLV1:
             ff_clean_h263_qscales(s);
             break;
         }
+#endif
 
-        s->qscale= s->qscale_table[0];
+        s->qscale= s->current_picture.qscale_table[0];
     }else
         s->qscale= (int)(s->frame_qscale + 0.5);
         
@@ -2661,21 +3371,31 @@ static void encode_picture(MpegEncContext *s, int picture_number)
         /* for mjpeg, we do include qscale in the matrix */
         s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
         for(i=1;i<64;i++){
-            int j= s->idct_permutation[i];
+            int j= s->dsp.idct_permutation[i];
 
             s->intra_matrix[j] = CLAMP_TO_8BIT((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
         }
         convert_matrix(s, s->q_intra_matrix, s->q_intra_matrix16, 
                        s->q_intra_matrix16_bias, s->intra_matrix, s->intra_quant_bias, 8, 8);
     }
+    
+    //FIXME var duplication
+    s->current_picture.key_frame= s->pict_type == I_TYPE;
+    s->current_picture.pict_type= s->pict_type;
+
+    if(s->current_picture.key_frame)
+        s->picture_in_gop_number=0;
 
     s->last_bits= get_bit_count(&s->pb);
     switch(s->out_format) {
     case FMT_MJPEG:
         mjpeg_picture_header(s);
         break;
+#ifdef CONFIG_RISKY
     case FMT_H263:
-        if (s->h263_msmpeg4) 
+        if (s->codec_id == CODEC_ID_WMV2) 
+            ff_wmv2_encode_picture_header(s, picture_number);
+        else if (s->h263_msmpeg4) 
             msmpeg4_encode_picture_header(s, picture_number);
         else if (s->h263_pred)
             mpeg4_encode_picture_header(s, picture_number);
@@ -2684,6 +3404,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
         else
             h263_encode_picture_header(s, picture_number);
         break;
+#endif
     case FMT_MPEG1:
         mpeg1_encode_picture_header(s, picture_number);
         break;
@@ -2700,26 +3421,39 @@ static void encode_picture(MpegEncContext *s, int picture_number)
     s->b_count=0;
     s->skip_count=0;
 
-    /* init last dc values */
-    /* note: quant matrix value (8) is implied here */
-    s->last_dc[0] = 128;
-    s->last_dc[1] = 128;
-    s->last_dc[2] = 128;
-    s->mb_incr = 1;
+    for(i=0; i<3; i++){
+        /* init last dc values */
+        /* note: quant matrix value (8) is implied here */
+        s->last_dc[i] = 128;
+        
+        s->current_picture_ptr->error[i] = 0;
+    }
+    s->mb_skip_run = 0;
     s->last_mv[0][0][0] = 0;
     s->last_mv[0][0][1] = 0;
+    s->last_mv[1][0][0] = 0;
+    s->last_mv[1][0][1] = 0;
+     
+    s->last_mv_dir = 0;
 
-    if (s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P)
+#ifdef CONFIG_RISKY
+    switch(s->codec_id){
+    case CODEC_ID_H263:
+    case CODEC_ID_H263P:
+    case CODEC_ID_FLV1:
         s->gob_index = ff_h263_get_gob_height(s);
-
-    if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame)
-        ff_mpeg4_init_partitions(s);
+        break;
+    case CODEC_ID_MPEG4:
+        if(s->partitioned_frame)
+            ff_mpeg4_init_partitions(s);
+        break;
+    }
+#endif
 
     s->resync_mb_x=0;
     s->resync_mb_y=0;
     s->first_slice_line = 1;
     s->ptr_lastgob = s->pb.buf;
-    s->ptr_last_mb_line = s->pb.buf;
     for(mb_y=0; mb_y < s->mb_height; mb_y++) {
         s->y_dc_scale= s->y_dc_scale_table[ s->qscale ];
         s->c_dc_scale= s->c_dc_scale_table[ s->qscale ];
@@ -2731,8 +3465,8 @@ static void encode_picture(MpegEncContext *s, int picture_number)
         s->block_index[4]= s->block_wrap[4]*(mb_y + 1)                    + s->block_wrap[0]*(s->mb_height*2 + 2);
         s->block_index[5]= s->block_wrap[4]*(mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2);
         for(mb_x=0; mb_x < s->mb_width; mb_x++) {
-            const int mb_type= s->mb_type[mb_y * s->mb_width + mb_x];
-            const int xy= (mb_y+1) * (s->mb_width+2) + mb_x + 1;
+            const int xy= mb_y*s->mb_stride + mb_x;
+            int mb_type= s->mb_type[xy];
 //            int d;
             int dmin=10000000;
 
@@ -2746,6 +3480,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
             s->block_index[5]++;
 
             /* write gob / video packet header  */
+#ifdef CONFIG_RISKY
             if(s->rtp_mode){
                 int current_packet_size, is_gob_start;
                 
@@ -2753,7 +3488,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                 is_gob_start=0;
                 
                 if(s->codec_id==CODEC_ID_MPEG4){
-                    if(current_packet_size + s->mb_line_avgsize/s->mb_width >= s->rtp_payload_size
+                    if(current_packet_size >= s->rtp_payload_size
                        && s->mb_y + s->mb_x>0){
 
                         if(s->partitioned_frame){
@@ -2770,8 +3505,15 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                         ff_mpeg4_clean_buffers(s);
                         is_gob_start=1;
                     }
+                }else if(s->codec_id==CODEC_ID_MPEG1VIDEO){
+                    if(   current_packet_size >= s->rtp_payload_size 
+                       && s->mb_y + s->mb_x>0 && s->mb_skip_run==0){
+                        ff_mpeg1_encode_slice_header(s);
+                        ff_mpeg1_clean_buffers(s);
+                        is_gob_start=1;
+                    }
                 }else{
-                    if(current_packet_size + s->mb_line_avgsize*s->gob_index >= s->rtp_payload_size
+                    if(current_packet_size >= s->rtp_payload_size
                        && s->mb_x==0 && s->mb_y>0 && s->mb_y%s->gob_index==0){
                        
                         h263_encode_gob_header(s, mb_y);                       
@@ -2786,6 +3528,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                     s->resync_mb_y=mb_y;
                 }
             }
+#endif
 
             if(  (s->resync_mb_x   == s->mb_x)
                && s->resync_mb_y+1 == s->mb_y){
@@ -2855,18 +3598,19 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                                  &dmin, &next_block, 0, 0);
                 }
                 if(mb_type&MB_TYPE_DIRECT){
+                    int mx= s->b_direct_mv_table[xy][0];
+                    int my= s->b_direct_mv_table[xy][1];
+                    
                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
-                    s->mv_type = MV_TYPE_16X16; //FIXME
                     s->mb_intra= 0;
-                    s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
-                    s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
-                    s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
-                    s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
+#ifdef CONFIG_RISKY
+                    ff_mpeg4_set_direct_mv(s, mx, my);
+#endif
                     encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_DIRECT, pb, pb2, tex_pb, 
-                                 &dmin, &next_block, s->b_direct_mv_table[xy][0], s->b_direct_mv_table[xy][1]);
+                                 &dmin, &next_block, mx, my);
                 }
                 if(mb_type&MB_TYPE_INTRA){
-                    s->mv_dir = MV_DIR_FORWARD;
+                    s->mv_dir = 0;
                     s->mv_type = MV_TYPE_16X16;
                     s->mb_intra= 1;
                     s->mv[0][0][0] = 0;
@@ -2875,7 +3619,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                                  &dmin, &next_block, 0, 0);
                     /* force cleaning of ac/dc pred stuff if needed ... */
                     if(s->h263_pred || s->h263_aic)
-                        s->mbintra_table[mb_x + mb_y*s->mb_width]=1;
+                        s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
                 }
                 copy_context_after_encode(s, &best_s, -1);
                 
@@ -2898,11 +3642,96 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                 s->last_bits= get_bit_count(&s->pb);
             } else {
                 int motion_x, motion_y;
+                int intra_score;
+                int inter_score= s->current_picture.mb_cmp_score[mb_x + mb_y*s->mb_stride];
+                
+              if(!(s->flags&CODEC_FLAG_HQ) && s->pict_type==P_TYPE){
+                /* get luma score */
+                if((s->avctx->mb_cmp&0xFF)==FF_CMP_SSE){
+                    intra_score= (s->current_picture.mb_var[mb_x + mb_y*s->mb_stride]<<8) - 500; //FIXME dont scale it down so we dont have to fix it
+                }else{
+                    uint8_t *dest_y;
+
+                    int mean= s->current_picture.mb_mean[mb_x + mb_y*s->mb_stride]; //FIXME
+                    mean*= 0x01010101;
+                    
+                    dest_y  = s->new_picture.data[0] + (mb_y * 16 * s->linesize    ) + mb_x * 16;
+                
+                    for(i=0; i<16; i++){
+                        *(uint32_t*)(&s->me.scratchpad[i*s->linesize+ 0]) = mean;
+                        *(uint32_t*)(&s->me.scratchpad[i*s->linesize+ 4]) = mean;
+                        *(uint32_t*)(&s->me.scratchpad[i*s->linesize+ 8]) = mean;
+                        *(uint32_t*)(&s->me.scratchpad[i*s->linesize+12]) = mean;
+                    }
+
+                    s->mb_intra=1;
+                    intra_score= s->dsp.mb_cmp[0](s, s->me.scratchpad, dest_y, s->linesize);
+                                        
+/*                    printf("intra:%7d inter:%7d var:%7d mc_var.%7d\n", intra_score>>8, inter_score>>8, 
+                        s->current_picture.mb_var[mb_x + mb_y*s->mb_stride],
+                        s->current_picture.mc_mb_var[mb_x + mb_y*s->mb_stride]);*/
+                }
+                
+                /* get chroma score */
+                if(s->avctx->mb_cmp&FF_CMP_CHROMA){
+                    int i;
+                    
+                    s->mb_intra=1;
+                    for(i=1; i<3; i++){
+                        uint8_t *dest_c;
+                        int mean;
+                        
+                        if(s->out_format == FMT_H263){
+                            mean= (s->dc_val[i][mb_x + (mb_y+1)*(s->mb_width+2)] + 4)>>3; //FIXME not exact but simple ;)
+                        }else{
+                            mean= (s->last_dc[i] + 4)>>3;
+                        }
+                        dest_c = s->new_picture.data[i] + (mb_y * 8  * (s->uvlinesize)) + mb_x * 8;
+                        
+                        mean*= 0x01010101;
+                        for(i=0; i<8; i++){
+                            *(uint32_t*)(&s->me.scratchpad[i*s->uvlinesize+ 0]) = mean;
+                            *(uint32_t*)(&s->me.scratchpad[i*s->uvlinesize+ 4]) = mean;
+                        }
+                        
+                        intra_score+= s->dsp.mb_cmp[1](s, s->me.scratchpad, dest_c, s->uvlinesize);
+                    }                
+                }
+
+                /* bias */
+                switch(s->avctx->mb_cmp&0xFF){
+                default:
+                case FF_CMP_SAD:
+                    intra_score+= 32*s->qscale;
+                    break;
+                case FF_CMP_SSE:
+                    intra_score+= 24*s->qscale*s->qscale;
+                    break;
+                case FF_CMP_SATD:
+                    intra_score+= 96*s->qscale;
+                    break;
+                case FF_CMP_DCT:
+                    intra_score+= 48*s->qscale;
+                    break;
+                case FF_CMP_BIT:
+                    intra_score+= 16;
+                    break;
+                case FF_CMP_PSNR:
+                case FF_CMP_RD:
+                    intra_score+= (s->qscale*s->qscale*109*8 + 64)>>7;
+                    break;
+                }
+
+                if(intra_score < inter_score)
+                    mb_type= MB_TYPE_INTRA;
+              }  
+                
                 s->mv_type=MV_TYPE_16X16;
                 // only one MB-Type possible
+                
                 switch(mb_type){
                 case MB_TYPE_INTRA:
-                    s->mv_dir = MV_DIR_FORWARD;
+                    s->mv_dir = 0;
                     s->mb_intra= 1;
                     motion_x= s->mv[0][0][0] = 0;
                     motion_y= s->mv[0][0][1] = 0;
@@ -2928,10 +3757,9 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                     s->mb_intra= 0;
                     motion_x=s->b_direct_mv_table[xy][0];
                     motion_y=s->b_direct_mv_table[xy][1];
-                    s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
-                    s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
-                    s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
-                    s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
+#ifdef CONFIG_RISKY
+                    ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
+#endif
                     break;
                 case MB_TYPE_BIDIR:
                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
@@ -2960,8 +3788,13 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                     motion_x=motion_y=0; //gcc warning fix
                     printf("illegal MB type\n");
                 }
+
                 encode_mb(s, motion_x, motion_y);
+
+                // RAL: Update last macrobloc type
+                s->last_mv_dir = s->mv_dir;
             }
+
             /* clean the MV table in IPS frames for direct mode in B frames */
             if(s->mb_intra /* && I,P,S_TYPE */){
                 s->p_mv_table[xy][0]=0;
@@ -2969,22 +3802,36 @@ static void encode_picture(MpegEncContext *s, int picture_number)
             }
 
             MPV_decode_mb(s, s->block);
-//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_width, get_bit_count(&s->pb));
-        }
-
-
-        /* Obtain average mb_row size for RTP */
-        if (s->rtp_mode) {
-            if (mb_y==0)
-                s->mb_line_avgsize = pbBufPtr(&s->pb) - s->ptr_last_mb_line;
-            else {    
-                s->mb_line_avgsize = (s->mb_line_avgsize + pbBufPtr(&s->pb) - s->ptr_last_mb_line) >> 1;
+            
+            if(s->flags&CODEC_FLAG_PSNR){
+                int w= 16;
+                int h= 16;
+
+                if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
+                if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
+
+                s->current_picture_ptr->error[0] += sse(
+                    s,
+                    s->new_picture    .data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
+                    s->current_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
+                    w, h, s->linesize);
+                s->current_picture_ptr->error[1] += sse(
+                    s,
+                    s->new_picture    .data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,
+                    s->current_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,
+                    w>>1, h>>1, s->uvlinesize);
+                s->current_picture_ptr->error[2] += sse(
+                    s,
+                    s->new_picture    .data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,
+                    s->current_picture.data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,
+                    w>>1, h>>1, s->uvlinesize);
             }
-            s->ptr_last_mb_line = pbBufPtr(&s->pb);
+//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, get_bit_count(&s->pb));
         }
     }
     emms_c();
 
+#ifdef CONFIG_RISKY
     if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame)
         ff_mpeg4_merge_partitions(s);
 
@@ -2993,6 +3840,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
 
     if(s->codec_id==CODEC_ID_MPEG4) 
         ff_mpeg4_stuffing(&s->pb);
+#endif
 
     //if (s->gob_number)
     //    fprintf(stderr,"\nNumber of GOB: %d", s->gob_number);
@@ -3009,18 +3857,266 @@ static void encode_picture(MpegEncContext *s, int picture_number)
     }
 }
 
+static int dct_quantize_trellis_c(MpegEncContext *s, 
+                        DCTELEM *block, int n,
+                        int qscale, int *overflow){
+    const int *qmat;
+    const uint8_t *scantable= s->intra_scantable.scantable;
+    int max=0;
+    unsigned int threshold1, threshold2;
+    int bias=0;
+    int run_tab[65];
+    int level_tab[65];
+    int score_tab[65];
+    int last_run=0;
+    int last_level=0;
+    int last_score= 0;
+    int last_i= 0;
+    int coeff[3][64];
+    int coeff_count[64];
+    int lambda, qmul, qadd, start_i, last_non_zero, i;
+    const int esc_length= s->ac_esc_length;
+    uint8_t * length;
+    uint8_t * last_length;
+    int score_limit=0;
+    int left_limit= 0;
+        
+    s->dsp.fdct (block);
+
+    qmul= qscale*16;
+    qadd= ((qscale-1)|1)*8;
+
+    if (s->mb_intra) {
+        int q;
+        if (!s->h263_aic) {
+            if (n < 4)
+                q = s->y_dc_scale;
+            else
+                q = s->c_dc_scale;
+            q = q << 3;
+        } else{
+            /* For AIC we skip quant/dequant of INTRADC */
+            q = 1 << 3;
+            qadd=0;
+        }
+            
+        /* note: block[0] is assumed to be positive */
+        block[0] = (block[0] + (q >> 1)) / q;
+        start_i = 1;
+        last_non_zero = 0;
+        qmat = s->q_intra_matrix[qscale];
+        if(s->mpeg_quant || s->codec_id== CODEC_ID_MPEG1VIDEO)
+            bias= 1<<(QMAT_SHIFT-1);
+        length     = s->intra_ac_vlc_length;
+        last_length= s->intra_ac_vlc_last_length;
+    } else {
+        start_i = 0;
+        last_non_zero = -1;
+        qmat = s->q_inter_matrix[qscale];
+        length     = s->inter_ac_vlc_length;
+        last_length= s->inter_ac_vlc_last_length;
+    }
+
+    threshold1= (1<<QMAT_SHIFT) - bias - 1;
+    threshold2= (threshold1<<1);
+
+    for(i=start_i; i<64; i++) {
+        const int j = scantable[i];
+        const int k= i-start_i;
+        int level = block[j];
+        level = level * qmat[j];
+
+//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
+//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
+        if(((unsigned)(level+threshold1))>threshold2){
+            if(level>0){
+                level= (bias + level)>>QMAT_SHIFT;
+                coeff[0][k]= level;
+                coeff[1][k]= level-1;
+//                coeff[2][k]= level-2;
+            }else{
+                level= (bias - level)>>QMAT_SHIFT;
+                coeff[0][k]= -level;
+                coeff[1][k]= -level+1;
+//                coeff[2][k]= -level+2;
+            }
+            coeff_count[k]= FFMIN(level, 2);
+            max |=level;
+            last_non_zero = i;
+        }else{
+            coeff[0][k]= (level>>31)|1;
+            coeff_count[k]= 1;
+        }
+    }
+    
+    *overflow= s->max_qcoeff < max; //overflow might have happend
+    
+    if(last_non_zero < start_i){
+        memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
+        return last_non_zero;
+    }
+
+    lambda= (qscale*qscale*64*105 + 64)>>7; //FIXME finetune
+        
+    score_tab[0]= 0;
+    for(i=0; i<=last_non_zero - start_i; i++){
+        int level_index, run, j;
+        const int dct_coeff= block[ scantable[i + start_i] ];
+        const int zero_distoration= dct_coeff*dct_coeff;
+        int best_score=256*256*256*120;
+
+        last_score += zero_distoration;
+        for(level_index=0; level_index < coeff_count[i]; level_index++){
+            int distoration;
+            int level= coeff[level_index][i];
+            int unquant_coeff;
+            
+            assert(level);
+
+            if(s->out_format == FMT_H263){
+                if(level>0){
+                    unquant_coeff= level*qmul + qadd;
+                }else{
+                    unquant_coeff= level*qmul - qadd;
+                }
+            }else{ //MPEG1
+                j= s->dsp.idct_permutation[ scantable[i + start_i] ]; //FIXME optimize
+                if(s->mb_intra){
+                    if (level < 0) {
+                        unquant_coeff = (int)((-level) * qscale * s->intra_matrix[j]) >> 3;
+                        unquant_coeff = -((unquant_coeff - 1) | 1);
+                    } else {
+                        unquant_coeff = (int)(  level  * qscale * s->intra_matrix[j]) >> 3;
+                        unquant_coeff =   (unquant_coeff - 1) | 1;
+                    }
+                }else{
+                    if (level < 0) {
+                        unquant_coeff = ((((-level) << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
+                        unquant_coeff = -((unquant_coeff - 1) | 1);
+                    } else {
+                        unquant_coeff = (((  level  << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
+                        unquant_coeff =   (unquant_coeff - 1) | 1;
+                    }
+                }
+                unquant_coeff<<= 3;
+            }
+
+            distoration= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff);
+            level+=64;
+            if((level&(~127)) == 0){
+                for(run=0; run<=i - left_limit; run++){
+                    int score= distoration + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
+                    score += score_tab[i-run];
+                    
+                    if(score < best_score){
+                        best_score= 
+                        score_tab[i+1]= score;
+                        run_tab[i+1]= run;
+                        level_tab[i+1]= level-64;
+                    }
+                }
+
+                if(s->out_format == FMT_H263){
+                    for(run=0; run<=i - left_limit; run++){
+                        int score= distoration + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
+                        score += score_tab[i-run];
+                        if(score < last_score){
+                            last_score= score;
+                            last_run= run;
+                            last_level= level-64;
+                            last_i= i+1;
+                        }
+                    }
+                }
+            }else{
+                distoration += esc_length*lambda;
+                for(run=0; run<=i - left_limit; run++){
+                    int score= distoration + score_tab[i-run];
+                    
+                    if(score < best_score){
+                        best_score= 
+                        score_tab[i+1]= score;
+                        run_tab[i+1]= run;
+                        level_tab[i+1]= level-64;
+                    }
+                }
+
+                if(s->out_format == FMT_H263){
+                    for(run=0; run<=i - left_limit; run++){
+                        int score= distoration + score_tab[i-run];
+                        if(score < last_score){
+                            last_score= score;
+                            last_run= run;
+                            last_level= level-64;
+                            last_i= i+1;
+                        }
+                    }
+                }
+            }
+        }
+
+        for(j=left_limit; j<=i; j++){
+            score_tab[j] += zero_distoration;
+        }
+        score_limit+= zero_distoration;
+        if(score_tab[i+1] < score_limit)
+            score_limit= score_tab[i+1];
+        
+        //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
+        while(score_tab[ left_limit ] > score_limit + lambda) left_limit++;
+    }
+
+        //FIXME add some cbp penalty
+
+    if(s->out_format != FMT_H263){
+        last_score= 256*256*256*120;
+        for(i= left_limit; i<=last_non_zero - start_i + 1; i++){
+            int score= score_tab[i];
+            if(i) score += lambda*2; //FIXME exacter?
+
+            if(score < last_score){
+                last_score= score;
+                last_i= i;
+                last_level= level_tab[i];
+                last_run= run_tab[i];
+            }
+        }
+    }
+    
+    last_non_zero= last_i - 1 + start_i;
+    memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
+    
+    if(last_non_zero < start_i)
+        return last_non_zero;
+    
+    i= last_i;
+    assert(last_level);
+//FIXME use permutated scantable
+    block[ s->dsp.idct_permutation[ scantable[last_non_zero] ] ]= last_level;
+    i -= last_run + 1;
+    
+    for(;i>0 ; i -= run_tab[i] + 1){
+        const int j= s->dsp.idct_permutation[ scantable[i - 1 + start_i] ];
+    
+        block[j]= level_tab[i];
+        assert(block[j]);
+    }
+
+    return last_non_zero;
+}
+
 static int dct_quantize_c(MpegEncContext *s, 
                         DCTELEM *block, int n,
                         int qscale, int *overflow)
 {
     int i, j, level, last_non_zero, q;
     const int *qmat;
-    const UINT8 *scantable= s->intra_scantable.scantable;
+    const uint8_t *scantable= s->intra_scantable.scantable;
     int bias;
     int max=0;
     unsigned int threshold1, threshold2;
 
-    s->fdct (block);
+    s->dsp.fdct (block);
 
     if (s->mb_intra) {
         if (!s->h263_aic) {
@@ -3053,8 +4149,8 @@ static int dct_quantize_c(MpegEncContext *s,
         level = block[j];
         level = level * qmat[j];
 
-//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
-//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
+//        if(   bias+level >= (1<<QMAT_SHIFT)
+//           || bias-level >= (1<<QMAT_SHIFT)){
         if(((unsigned)(level+threshold1))>threshold2){
             if(level>0){
                 level= (bias + level)>>QMAT_SHIFT;
@@ -3072,16 +4168,19 @@ static int dct_quantize_c(MpegEncContext *s,
     *overflow= s->max_qcoeff < max; //overflow might have happend
     
     /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
-    ff_block_permute(block, s->idct_permutation, scantable, last_non_zero);
+    if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
+       ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
 
     return last_non_zero;
 }
 
+#endif //CONFIG_ENCODERS
+
 static void dct_unquantize_mpeg1_c(MpegEncContext *s, 
                                    DCTELEM *block, int n, int qscale)
 {
     int i, level, nCoeffs;
-    const UINT16 *quant_matrix;
+    const uint16_t *quant_matrix;
 
     nCoeffs= s->block_last_index[n];
     
@@ -3144,7 +4243,7 @@ static void dct_unquantize_mpeg2_c(MpegEncContext *s,
                                    DCTELEM *block, int n, int qscale)
 {
     int i, level, nCoeffs;
-    const UINT16 *quant_matrix;
+    const uint16_t *quant_matrix;
 
     if(s->alternate_scan) nCoeffs= 63;
     else nCoeffs= s->block_last_index[n];
@@ -3226,7 +4325,7 @@ static void dct_unquantize_h263_c(MpegEncContext *s,
         nCoeffs= 63; //does not allways use zigzag table 
     } else {
         i = 0;
-        nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
+        nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
     }
 
     for(;i<=nCoeffs;i++) {
@@ -3246,6 +4345,84 @@ static void dct_unquantize_h263_c(MpegEncContext *s,
     }
 }
 
+
+static const AVOption mpeg4_options[] =
+{
+    AVOPTION_CODEC_INT("bitrate", "desired video bitrate", bit_rate, 4, 240000000, 800000),
+    AVOPTION_CODEC_FLAG("vhq", "very high quality", flags, CODEC_FLAG_HQ, 0),
+    AVOPTION_CODEC_INT("ratetol", "number of bits the bitstream is allowed to diverge from the reference"
+                      "the reference can be CBR (for CBR pass1) or VBR (for pass2)",
+                      bit_rate_tolerance, 4, 240000000, 8000),
+    AVOPTION_CODEC_INT("qmin", "minimum quantizer", qmin, 1, 31, 2),
+    AVOPTION_CODEC_INT("qmax", "maximum quantizer", qmax, 1, 31, 31),
+    AVOPTION_CODEC_STRING("rc_eq", "rate control equation",
+                         rc_eq, "tex^qComp,option1,options2", 0),
+    AVOPTION_CODEC_INT("rc_minrate", "rate control minimum bitrate",
+                      rc_min_rate, 4, 24000000, 0),
+    AVOPTION_CODEC_INT("rc_maxrate", "rate control maximum bitrate",
+                      rc_max_rate, 4, 24000000, 0),
+    AVOPTION_CODEC_DOUBLE("rc_buf_aggresivity", "rate control buffer aggresivity",
+                         rc_buffer_aggressivity, 4, 24000000, 0),
+    AVOPTION_CODEC_DOUBLE("rc_initial_cplx", "initial complexity for pass1 ratecontrol",
+                         rc_initial_cplx, 0., 9999999., 0),
+    AVOPTION_CODEC_DOUBLE("i_quant_factor", "qscale factor between p and i frames",
+                         i_quant_factor, 0., 0., 0),
+    AVOPTION_CODEC_DOUBLE("i_quant_offset", "qscale offset between p and i frames",
+                         i_quant_factor, -999999., 999999., 0),
+    AVOPTION_CODEC_INT("dct_algo", "dct alghorithm",
+                      dct_algo, 0, 5, 0), // fixme - "Auto,FastInt,Int,MMX,MLib,Altivec"
+    AVOPTION_CODEC_DOUBLE("lumi_masking", "luminance masking",
+                         lumi_masking, 0., 999999., 0),
+    AVOPTION_CODEC_DOUBLE("temporal_cplx_masking", "temporary complexity masking",
+                         temporal_cplx_masking, 0., 999999., 0),
+    AVOPTION_CODEC_DOUBLE("spatial_cplx_masking", "spatial complexity masking",
+                         spatial_cplx_masking, 0., 999999., 0),
+    AVOPTION_CODEC_DOUBLE("p_masking", "p block masking",
+                         p_masking, 0., 999999., 0),
+    AVOPTION_CODEC_DOUBLE("dark_masking", "darkness masking",
+                         dark_masking, 0., 999999., 0),
+    AVOPTION_CODEC_INT("idct_algo", "idct alghorithm",
+                      idct_algo, 0, 8, 0), // fixme - "Auto,Int,Simple,SimpleMMX,LibMPEG2MMX,PS2,MLib,ARM,Altivec"
+
+    AVOPTION_CODEC_INT("mb_qmin", "minimum MB quantizer",
+                      mb_qmin, 0, 8, 0),
+    AVOPTION_CODEC_INT("mb_qmax", "maximum MB quantizer",
+                      mb_qmin, 0, 8, 0),
+
+    AVOPTION_CODEC_INT("me_cmp", "ME compare function",
+                      me_cmp, 0, 24000000, 0),
+    AVOPTION_CODEC_INT("me_sub_cmp", "subpixel ME compare function",
+                      me_sub_cmp, 0, 24000000, 0),
+
+
+    AVOPTION_CODEC_INT("dia_size", "ME diamond size & shape",
+                      dia_size, 0, 24000000, 0),
+    AVOPTION_CODEC_INT("last_predictor_count", "amount of previous MV predictors",
+                      last_predictor_count, 0, 24000000, 0),
+
+    AVOPTION_CODEC_INT("pre_me", "pre pass for ME",
+                      pre_me, 0, 24000000, 0),
+    AVOPTION_CODEC_INT("me_pre_cmp", "ME pre pass compare function",
+                      me_pre_cmp, 0, 24000000, 0),
+
+    AVOPTION_CODEC_INT("me_range", "maximum ME search range",
+                      me_range, 0, 24000000, 0),
+    AVOPTION_CODEC_INT("pre_dia_size", "ME pre pass diamod size & shape",
+                      pre_dia_size, 0, 24000000, 0),
+    AVOPTION_CODEC_INT("me_subpel_quality", "subpel ME quality",
+                      me_subpel_quality, 0, 24000000, 0),
+    AVOPTION_CODEC_INT("me_range", "maximum ME search range",
+                      me_range, 0, 24000000, 0),
+    AVOPTION_CODEC_FLAG("psnr", "calculate PSNR of compressed frames",
+                       flags, CODEC_FLAG_PSNR, 0),
+    AVOPTION_CODEC_RCOVERRIDE("rc_override", "ratecontrol override (=startframe,endframe,qscale,quality_factor)",
+                             rc_override),
+    AVOPTION_SUB(avoptions_common),
+    AVOPTION_END()
+};
+
+#ifdef CONFIG_ENCODERS
+
 AVCodec mpeg1video_encoder = {
     "mpeg1video",
     CODEC_TYPE_VIDEO,
@@ -3256,6 +4433,8 @@ AVCodec mpeg1video_encoder = {
     MPV_encode_end,
 };
 
+#ifdef CONFIG_RISKY
+
 AVCodec h263_encoder = {
     "h263",
     CODEC_TYPE_VIDEO,
@@ -3276,20 +4455,20 @@ AVCodec h263p_encoder = {
     MPV_encode_end,
 };
 
-AVCodec rv10_encoder = {
-    "rv10",
+AVCodec flv_encoder = {
+    "flv",
     CODEC_TYPE_VIDEO,
-    CODEC_ID_RV10,
+    CODEC_ID_FLV1,
     sizeof(MpegEncContext),
     MPV_encode_init,
     MPV_encode_picture,
     MPV_encode_end,
 };
 
-AVCodec mjpeg_encoder = {
-    "mjpeg",
+AVCodec rv10_encoder = {
+    "rv10",
     CODEC_TYPE_VIDEO,
-    CODEC_ID_MJPEG,
+    CODEC_ID_RV10,
     sizeof(MpegEncContext),
     MPV_encode_init,
     MPV_encode_picture,
@@ -3304,6 +4483,7 @@ AVCodec mpeg4_encoder = {
     MPV_encode_init,
     MPV_encode_picture,
     MPV_encode_end,
+    .options = mpeg4_options,
 };
 
 AVCodec msmpeg4v1_encoder = {
@@ -3314,6 +4494,7 @@ AVCodec msmpeg4v1_encoder = {
     MPV_encode_init,
     MPV_encode_picture,
     MPV_encode_end,
+    .options = mpeg4_options,
 };
 
 AVCodec msmpeg4v2_encoder = {
@@ -3324,6 +4505,7 @@ AVCodec msmpeg4v2_encoder = {
     MPV_encode_init,
     MPV_encode_picture,
     MPV_encode_end,
+    .options = mpeg4_options,
 };
 
 AVCodec msmpeg4v3_encoder = {
@@ -3334,6 +4516,7 @@ AVCodec msmpeg4v3_encoder = {
     MPV_encode_init,
     MPV_encode_picture,
     MPV_encode_end,
+    .options = mpeg4_options,
 };
 
 AVCodec wmv1_encoder = {
@@ -3344,14 +4527,20 @@ AVCodec wmv1_encoder = {
     MPV_encode_init,
     MPV_encode_picture,
     MPV_encode_end,
+    .options = mpeg4_options,
 };
 
-AVCodec wmv2_encoder = {
-    "wmv2",
+#endif
+
+AVCodec mjpeg_encoder = {
+    "mjpeg",
     CODEC_TYPE_VIDEO,
-    CODEC_ID_WMV2,
+    CODEC_ID_MJPEG,
     sizeof(MpegEncContext),
     MPV_encode_init,
     MPV_encode_picture,
     MPV_encode_end,
 };
+
+#endif //CONFIG_ENCODERS
+