#ifndef AVCODEC_H264_H
#define AVCODEC_H264_H
+#include "libavutil/intreadwrite.h"
#include "dsputil.h"
#include "cabac.h"
#include "mpegvideo.h"
#include "h264pred.h"
+#include "rectangle.h"
#define interlaced_dct interlaced_dct_is_a_bad_name
#define mb_intra mb_intra_is_not_initialized_see_mb_type
#define CHROMA 1
#endif
+#ifndef CABAC
+#define CABAC h->pps.cabac
+#endif
+
#define EXTENDED_SAR 255
#define MB_TYPE_REF0 MB_TYPE_ACPRED //dirty but it fits in 16 bit
#define IS_REF0(a) ((a) & MB_TYPE_REF0)
#define IS_8x8DCT(a) ((a) & MB_TYPE_8x8DCT)
+/**
+ * Value of Picture.reference when Picture is not a reference picture, but
+ * is held for delayed output.
+ */
+#define DELAYED_PIC_REF 4
+
+
/* NAL unit types */
enum {
NAL_SLICE=1,
unsigned int crop_bottom; ///< frame_cropping_rect_bottom_offset
int vui_parameters_present_flag;
AVRational sar;
+ int video_signal_type_present_flag;
+ int full_range;
+ int colour_description_present_flag;
+ enum AVColorPrimaries color_primaries;
+ enum AVColorTransferCharacteristic color_trc;
+ enum AVColorSpace colorspace;
int timing_info_present_flag;
uint32_t num_units_in_tick;
uint32_t time_scale;
int chroma_qp[2]; //QPc
+ int qp_thresh; ///< QP threshold to skip loopfilter
+
int prev_mb_skipped;
int next_mb_skipped;
int chroma_pred_mode;
int intra16x16_pred_mode;
+ int topleft_mb_xy;
int top_mb_xy;
+ int topright_mb_xy;
int left_mb_xy[2];
+ int topleft_type;
+ int top_type;
+ int topright_type;
+ int left_type[2];
+
+ const uint8_t * left_block;
+ int topleft_partition;
+
int8_t intra4x4_pred_mode_cache[5*8];
int8_t (*intra4x4_pred_mode)[8];
H264PredContext hpc;
* non zero coeff count cache.
* is 64 if not available.
*/
- DECLARE_ALIGNED_8(uint8_t, non_zero_count_cache[6*8]);
- uint8_t (*non_zero_count)[16];
+ DECLARE_ALIGNED_8(uint8_t, non_zero_count_cache)[6*8];
+
+ /*
+ .UU.YYYY
+ .UU.YYYY
+ .vv.YYYY
+ .VV.YYYY
+ */
+ uint8_t (*non_zero_count)[32];
/**
* Motion vector cache.
*/
- DECLARE_ALIGNED_8(int16_t, mv_cache[2][5*8][2]);
- DECLARE_ALIGNED_8(int8_t, ref_cache[2][5*8]);
+ DECLARE_ALIGNED_16(int16_t, mv_cache)[2][5*8][2];
+ DECLARE_ALIGNED_8(int8_t, ref_cache)[2][5*8];
#define LIST_NOT_USED -1 //FIXME rename?
#define PART_NOT_AVAILABLE -2
int mb_field_decoding_flag;
int mb_mbaff; ///< mb_aff_frame && mb_field_decoding_flag
- DECLARE_ALIGNED_8(uint16_t, sub_mb_type[4]);
+ DECLARE_ALIGNED_8(uint16_t, sub_mb_type)[4];
//POC stuff
int poc_lsb;
int redundant_pic_count;
int direct_spatial_mv_pred;
+ int col_parity;
+ int col_fieldoff;
int dist_scale_factor[16];
int dist_scale_factor_field[2][32];
int map_col_to_list0[2][16+32];
*/
unsigned int ref_count[2]; ///< counts frames or fields, depending on current mb mode
unsigned int list_count;
+ uint8_t *list_counts; ///< Array of list_count per MB specifying the slice type
Picture *short_ref[32];
Picture *long_ref[32];
Picture default_ref_list[2][32]; ///< base reference list for all slices of a coded picture
GetBitContext *intra_gb_ptr;
GetBitContext *inter_gb_ptr;
- DECLARE_ALIGNED_16(DCTELEM, mb[16*24]);
+ DECLARE_ALIGNED_16(DCTELEM, mb)[16*24];
DCTELEM mb_padding[256]; ///< as mb is addressed by scantable[i] and scantable is uint8_t we can either check that i is not too large or ensure that there is some unused stuff after mb
/**
uint8_t *chroma_pred_mode_table;
int last_qscale_diff;
int16_t (*mvd_table[2])[2];
- DECLARE_ALIGNED_8(int16_t, mvd_cache[2][5*8][2]);
+ DECLARE_ALIGNED_16(int16_t, mvd_cache)[2][5*8][2];
uint8_t *direct_table;
uint8_t direct_cache[5*8];
*/
SEI_PicStructType sei_pic_struct;
+ /**
+ * Complement sei_pic_struct
+ * SEI_PIC_STRUCT_TOP_BOTTOM and SEI_PIC_STRUCT_BOTTOM_TOP indicate interlaced frames.
+ * However, soft telecined frames may have these values.
+ * This is used in an attempt to flag soft telecine progressive.
+ */
+ int prev_interlaced_frame;
+
+ /**
+ * Bit set of clock types for fields/frames in picture timing SEI message.
+ * For each found ct_type, appropriate bit is set (e.g., bit 1 for
+ * interlaced).
+ */
+ int sei_ct_type;
+
/**
* dpb_output_delay in picture timing SEI message, see H.264 C.2.2
*/
int initial_cpb_removal_delay[32]; ///< Initial timestamps for CPBs
}H264Context;
+
+extern const uint8_t ff_h264_chroma_qp[52];
+
+void ff_svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp);
+
+void ff_svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc);
+
/**
* Decode SEI
*/
*/
int ff_h264_decode_rbsp_trailing(H264Context *h, const uint8_t *src);
+/**
+ * frees any data that may have been allocated in the H264 context like SPS, PPS etc.
+ */
+av_cold void ff_h264_free_context(H264Context *h);
+
+/**
+ * reconstructs bitstream slice_type.
+ */
+int ff_h264_get_slice_type(const H264Context *h);
+
+/**
+ * allocates tables.
+ * needs width/height
+ */
+int ff_h264_alloc_tables(H264Context *h);
+
+/**
+ * fills the default_ref_list.
+ */
+int ff_h264_fill_default_ref_list(H264Context *h);
+
+int ff_h264_decode_ref_pic_list_reordering(H264Context *h);
+void ff_h264_fill_mbaff_ref_list(H264Context *h);
+void ff_h264_remove_all_refs(H264Context *h);
+
+/**
+ * Executes the reference picture marking (memory management control operations).
+ */
+int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count);
+
+int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb);
+
+
+/**
+ * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
+ */
+int ff_h264_check_intra4x4_pred_mode(H264Context *h);
+
+/**
+ * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
+ */
+int ff_h264_check_intra_pred_mode(H264Context *h, int mode);
+
+void ff_h264_write_back_intra_pred_mode(H264Context *h);
+void ff_h264_hl_decode_mb(H264Context *h);
+int ff_h264_frame_start(H264Context *h);
+av_cold int ff_h264_decode_init(AVCodecContext *avctx);
+av_cold int ff_h264_decode_end(AVCodecContext *avctx);
+av_cold void ff_h264_decode_init_vlc(void);
+
+/**
+ * decodes a macroblock
+ * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
+ */
+int ff_h264_decode_mb_cavlc(H264Context *h);
+
+/**
+ * decodes a CABAC coded macroblock
+ * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
+ */
+int ff_h264_decode_mb_cabac(H264Context *h);
+
+void ff_h264_init_cabac_states(H264Context *h);
+
+void ff_h264_direct_dist_scale_factor(H264Context * const h);
+void ff_h264_direct_ref_list_init(H264Context * const h);
+void ff_h264_pred_direct_motion(H264Context * const h, int *mb_type);
+
+void ff_h264_filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
+void ff_h264_filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
+
+/**
+ * Reset SEI values at the beginning of the frame.
+ *
+ * @param h H.264 context.
+ */
+void ff_h264_reset_sei(H264Context *h);
+
+
+/*
+o-o o-o
+ / / /
+o-o o-o
+ ,---'
+o-o o-o
+ / / /
+o-o o-o
+*/
+//This table must be here because scan8[constant] must be known at compiletime
+static const uint8_t scan8[16 + 2*4]={
+ 4+1*8, 5+1*8, 4+2*8, 5+2*8,
+ 6+1*8, 7+1*8, 6+2*8, 7+2*8,
+ 4+3*8, 5+3*8, 4+4*8, 5+4*8,
+ 6+3*8, 7+3*8, 6+4*8, 7+4*8,
+ 1+1*8, 2+1*8,
+ 1+2*8, 2+2*8,
+ 1+4*8, 2+4*8,
+ 1+5*8, 2+5*8,
+};
+
+static av_always_inline uint32_t pack16to32(int a, int b){
+#if HAVE_BIGENDIAN
+ return (b&0xFFFF) + (a<<16);
+#else
+ return (a&0xFFFF) + (b<<16);
+#endif
+}
+
+/**
+ * gets the chroma qp.
+ */
+static inline int get_chroma_qp(H264Context *h, int t, int qscale){
+ return h->pps.chroma_qp_table[t][qscale];
+}
+
+static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my);
+
+static void fill_decode_neighbors(H264Context *h, int mb_type){
+ MpegEncContext * const s = &h->s;
+ const int mb_xy= h->mb_xy;
+ int topleft_xy, top_xy, topright_xy, left_xy[2];
+ static const uint8_t left_block_options[4][16]={
+ {0,1,2,3,7,10,8,11,7+0*8, 7+1*8, 7+2*8, 7+3*8, 2+0*8, 2+3*8, 2+1*8, 2+2*8},
+ {2,2,3,3,8,11,8,11,7+2*8, 7+2*8, 7+3*8, 7+3*8, 2+1*8, 2+2*8, 2+1*8, 2+2*8},
+ {0,0,1,1,7,10,7,10,7+0*8, 7+0*8, 7+1*8, 7+1*8, 2+0*8, 2+3*8, 2+0*8, 2+3*8},
+ {0,2,0,2,7,10,7,10,7+0*8, 7+2*8, 7+0*8, 7+2*8, 2+0*8, 2+3*8, 2+0*8, 2+3*8}
+ };
+
+ h->topleft_partition= -1;
+
+ top_xy = mb_xy - (s->mb_stride << MB_FIELD);
+
+ /* Wow, what a mess, why didn't they simplify the interlacing & intra
+ * stuff, I can't imagine that these complex rules are worth it. */
+
+ topleft_xy = top_xy - 1;
+ topright_xy= top_xy + 1;
+ left_xy[1] = left_xy[0] = mb_xy-1;
+ h->left_block = left_block_options[0];
+ if(FRAME_MBAFF){
+ const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]);
+ const int curr_mb_field_flag = IS_INTERLACED(mb_type);
+ if(s->mb_y&1){
+ if (left_mb_field_flag != curr_mb_field_flag) {
+ left_xy[1] = left_xy[0] = mb_xy - s->mb_stride - 1;
+ if (curr_mb_field_flag) {
+ left_xy[1] += s->mb_stride;
+ h->left_block = left_block_options[3];
+ } else {
+ topleft_xy += s->mb_stride;
+ // take top left mv from the middle of the mb, as opposed to all other modes which use the bottom right partition
+ h->topleft_partition = 0;
+ h->left_block = left_block_options[1];
+ }
+ }
+ }else{
+ if(curr_mb_field_flag){
+ topleft_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy - 1]>>7)&1)-1);
+ topright_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy + 1]>>7)&1)-1);
+ top_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy ]>>7)&1)-1);
+ }
+ if (left_mb_field_flag != curr_mb_field_flag) {
+ left_xy[1] = left_xy[0] = mb_xy - 1;
+ if (curr_mb_field_flag) {
+ left_xy[1] += s->mb_stride;
+ h->left_block = left_block_options[3];
+ } else {
+ h->left_block = left_block_options[2];
+ }
+ }
+ }
+ }
+
+ h->topleft_mb_xy = topleft_xy;
+ h->top_mb_xy = top_xy;
+ h->topright_mb_xy= topright_xy;
+ h->left_mb_xy[0] = left_xy[0];
+ h->left_mb_xy[1] = left_xy[1];
+ //FIXME do we need all in the context?
+ h->topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
+ h->top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
+ h->topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
+ h->left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
+ h->left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
+}
+
+static void fill_decode_caches(H264Context *h, int mb_type){
+ MpegEncContext * const s = &h->s;
+ const int mb_xy= h->mb_xy;
+ int topleft_xy, top_xy, topright_xy, left_xy[2];
+ int topleft_type, top_type, topright_type, left_type[2];
+ const uint8_t * left_block= h->left_block;
+ int i;
+
+ topleft_xy = h->topleft_mb_xy ;
+ top_xy = h->top_mb_xy ;
+ topright_xy = h->topright_mb_xy;
+ left_xy[0] = h->left_mb_xy[0] ;
+ left_xy[1] = h->left_mb_xy[1] ;
+ topleft_type = h->topleft_type ;
+ top_type = h->top_type ;
+ topright_type= h->topright_type ;
+ left_type[0] = h->left_type[0] ;
+ left_type[1] = h->left_type[1] ;
+
+ if(!IS_SKIP(mb_type)){
+ if(IS_INTRA(mb_type)){
+ int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1;
+ h->topleft_samples_available=
+ h->top_samples_available=
+ h->left_samples_available= 0xFFFF;
+ h->topright_samples_available= 0xEEEA;
+
+ if(!(top_type & type_mask)){
+ h->topleft_samples_available= 0xB3FF;
+ h->top_samples_available= 0x33FF;
+ h->topright_samples_available= 0x26EA;
+ }
+ if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[0])){
+ if(IS_INTERLACED(mb_type)){
+ if(!(left_type[0] & type_mask)){
+ h->topleft_samples_available&= 0xDFFF;
+ h->left_samples_available&= 0x5FFF;
+ }
+ if(!(left_type[1] & type_mask)){
+ h->topleft_samples_available&= 0xFF5F;
+ h->left_samples_available&= 0xFF5F;
+ }
+ }else{
+ int left_typei = h->slice_table[left_xy[0] + s->mb_stride ] == h->slice_num
+ ? s->current_picture.mb_type[left_xy[0] + s->mb_stride] : 0;
+ assert(left_xy[0] == left_xy[1]);
+ if(!((left_typei & type_mask) && (left_type[0] & type_mask))){
+ h->topleft_samples_available&= 0xDF5F;
+ h->left_samples_available&= 0x5F5F;
+ }
+ }
+ }else{
+ if(!(left_type[0] & type_mask)){
+ h->topleft_samples_available&= 0xDF5F;
+ h->left_samples_available&= 0x5F5F;
+ }
+ }
+
+ if(!(topleft_type & type_mask))
+ h->topleft_samples_available&= 0x7FFF;
+
+ if(!(topright_type & type_mask))
+ h->topright_samples_available&= 0xFBFF;
+
+ if(IS_INTRA4x4(mb_type)){
+ if(IS_INTRA4x4(top_type)){
+ h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
+ h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
+ h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
+ h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
+ }else{
+ int pred;
+ if(!(top_type & type_mask))
+ pred= -1;
+ else{
+ pred= 2;
+ }
+ h->intra4x4_pred_mode_cache[4+8*0]=
+ h->intra4x4_pred_mode_cache[5+8*0]=
+ h->intra4x4_pred_mode_cache[6+8*0]=
+ h->intra4x4_pred_mode_cache[7+8*0]= pred;
+ }
+ for(i=0; i<2; i++){
+ if(IS_INTRA4x4(left_type[i])){
+ h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
+ h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
+ }else{
+ int pred;
+ if(!(left_type[i] & type_mask))
+ pred= -1;
+ else{
+ pred= 2;
+ }
+ h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
+ h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
+ }
+ }
+ }
+ }
+
+
+/*
+0 . T T. T T T T
+1 L . .L . . . .
+2 L . .L . . . .
+3 . T TL . . . .
+4 L . .L . . . .
+5 L . .. . . . .
+*/
+//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
+ if(top_type){
+ AV_COPY32(&h->non_zero_count_cache[4+8*0], &h->non_zero_count[top_xy][4+3*8]);
+ h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][1+1*8];
+ h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][2+1*8];
+
+ h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][1+2*8];
+ h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][2+2*8];
+ }else {
+ h->non_zero_count_cache[1+8*0]=
+ h->non_zero_count_cache[2+8*0]=
+
+ h->non_zero_count_cache[1+8*3]=
+ h->non_zero_count_cache[2+8*3]=
+ AV_WN32A(&h->non_zero_count_cache[4+8*0], CABAC && !IS_INTRA(mb_type) ? 0 : 0x40404040);
+ }
+
+ for (i=0; i<2; i++) {
+ if(left_type[i]){
+ h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+0+2*i]];
+ h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[8+1+2*i]];
+ h->non_zero_count_cache[0+8*1 + 8*i]= h->non_zero_count[left_xy[i]][left_block[8+4+2*i]];
+ h->non_zero_count_cache[0+8*4 + 8*i]= h->non_zero_count[left_xy[i]][left_block[8+5+2*i]];
+ }else{
+ h->non_zero_count_cache[3+8*1 + 2*8*i]=
+ h->non_zero_count_cache[3+8*2 + 2*8*i]=
+ h->non_zero_count_cache[0+8*1 + 8*i]=
+ h->non_zero_count_cache[0+8*4 + 8*i]= CABAC && !IS_INTRA(mb_type) ? 0 : 64;
+ }
+ }
+
+ if( CABAC ) {
+ // top_cbp
+ if(top_type) {
+ h->top_cbp = h->cbp_table[top_xy];
+ } else if(IS_INTRA(mb_type)) {
+ h->top_cbp = 0x1CF;
+ } else {
+ h->top_cbp = 0x00F;
+ }
+ // left_cbp
+ if (left_type[0]) {
+ h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0;
+ } else if(IS_INTRA(mb_type)) {
+ h->left_cbp = 0x1CF;
+ } else {
+ h->left_cbp = 0x00F;
+ }
+ if (left_type[0]) {
+ h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1;
+ }
+ if (left_type[1]) {
+ h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3;
+ }
+ }
+ }
+
+#if 1
+ if(IS_INTER(mb_type) || (IS_DIRECT(mb_type) && h->direct_spatial_mv_pred)){
+ int list;
+ for(list=0; list<h->list_count; list++){
+ if(!USES_LIST(mb_type, list)){
+ /*if(!h->mv_cache_clean[list]){
+ memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
+ memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
+ h->mv_cache_clean[list]= 1;
+ }*/
+ continue;
+ }
+ assert(!(IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred));
+
+ h->mv_cache_clean[list]= 0;
+
+ if(USES_LIST(top_type, list)){
+ const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
+ const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
+ AV_COPY128(h->mv_cache[list][scan8[0] + 0 - 1*8], s->current_picture.motion_val[list][b_xy + 0]);
+ h->ref_cache[list][scan8[0] + 0 - 1*8]=
+ h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
+ h->ref_cache[list][scan8[0] + 2 - 1*8]=
+ h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
+ }else{
+ AV_ZERO128(h->mv_cache[list][scan8[0] + 0 - 1*8]);
+ AV_WN32A(&h->ref_cache[list][scan8[0] + 0 - 1*8], ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101);
+ }
+
+ for(i=0; i<2; i++){
+ int cache_idx = scan8[0] - 1 + i*2*8;
+ if(USES_LIST(left_type[i], list)){
+ const int b_xy= h->mb2b_xy[left_xy[i]] + 3;
+ const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1;
+ AV_COPY32(h->mv_cache[list][cache_idx ], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]]);
+ AV_COPY32(h->mv_cache[list][cache_idx+8], s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]]);
+ h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)];
+ h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)];
+ }else{
+ AV_ZERO32(h->mv_cache [list][cache_idx ]);
+ AV_ZERO32(h->mv_cache [list][cache_idx+8]);
+ h->ref_cache[list][cache_idx ]=
+ h->ref_cache[list][cache_idx+8]= (left_type[i]) ? LIST_NOT_USED : PART_NOT_AVAILABLE;
+ }
+ }
+
+ if(USES_LIST(topleft_type, list)){
+ const int b_xy = h->mb2b_xy [topleft_xy] + 3 + h->b_stride + (h->topleft_partition & 2*h->b_stride);
+ const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + (h->topleft_partition & h->b8_stride);
+ AV_COPY32(h->mv_cache[list][scan8[0] - 1 - 1*8], s->current_picture.motion_val[list][b_xy]);
+ h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
+ }else{
+ AV_ZERO32(h->mv_cache[list][scan8[0] - 1 - 1*8]);
+ h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
+ }
+
+ if(USES_LIST(topright_type, list)){
+ const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
+ const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
+ AV_COPY32(h->mv_cache[list][scan8[0] + 4 - 1*8], s->current_picture.motion_val[list][b_xy]);
+ h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
+ }else{
+ AV_ZERO32(h->mv_cache [list][scan8[0] + 4 - 1*8]);
+ h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
+ }
+
+ if((mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2)) && !FRAME_MBAFF)
+ continue;
+
+ if(!(mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2))) {
+ h->ref_cache[list][scan8[5 ]+1] =
+ h->ref_cache[list][scan8[7 ]+1] =
+ h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewhere else)
+ h->ref_cache[list][scan8[4 ]] =
+ h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
+ AV_ZERO32(h->mv_cache [list][scan8[5 ]+1]);
+ AV_ZERO32(h->mv_cache [list][scan8[7 ]+1]);
+ AV_ZERO32(h->mv_cache [list][scan8[13]+1]); //FIXME remove past 3 (init somewhere else)
+ AV_ZERO32(h->mv_cache [list][scan8[4 ]]);
+ AV_ZERO32(h->mv_cache [list][scan8[12]]);
+
+ if( CABAC ) {
+ /* XXX beurk, Load mvd */
+ if(USES_LIST(top_type, list)){
+ const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
+ AV_COPY128(h->mvd_cache[list][scan8[0] + 0 - 1*8], h->mvd_table[list][b_xy + 0]);
+ }else{
+ AV_ZERO128(h->mvd_cache[list][scan8[0] + 0 - 1*8]);
+ }
+ if(USES_LIST(left_type[0], list)){
+ const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
+ AV_COPY32(h->mvd_cache[list][scan8[0] - 1 + 0*8], h->mvd_table[list][b_xy + h->b_stride*left_block[0]]);
+ AV_COPY32(h->mvd_cache[list][scan8[0] - 1 + 1*8], h->mvd_table[list][b_xy + h->b_stride*left_block[1]]);
+ }else{
+ AV_ZERO32(h->mvd_cache [list][scan8[0] - 1 + 0*8]);
+ AV_ZERO32(h->mvd_cache [list][scan8[0] - 1 + 1*8]);
+ }
+ if(USES_LIST(left_type[1], list)){
+ const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
+ AV_COPY32(h->mvd_cache[list][scan8[0] - 1 + 2*8], h->mvd_table[list][b_xy + h->b_stride*left_block[2]]);
+ AV_COPY32(h->mvd_cache[list][scan8[0] - 1 + 3*8], h->mvd_table[list][b_xy + h->b_stride*left_block[3]]);
+ }else{
+ AV_ZERO32(h->mvd_cache [list][scan8[0] - 1 + 2*8]);
+ AV_ZERO32(h->mvd_cache [list][scan8[0] - 1 + 3*8]);
+ }
+ AV_ZERO32(h->mvd_cache [list][scan8[5 ]+1]);
+ AV_ZERO32(h->mvd_cache [list][scan8[7 ]+1]);
+ AV_ZERO32(h->mvd_cache [list][scan8[13]+1]); //FIXME remove past 3 (init somewhere else)
+ AV_ZERO32(h->mvd_cache [list][scan8[4 ]]);
+ AV_ZERO32(h->mvd_cache [list][scan8[12]]);
+
+ if(h->slice_type_nos == FF_B_TYPE){
+ fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, MB_TYPE_16x16>>1, 1);
+
+ if(IS_DIRECT(top_type)){
+ AV_WN32A(&h->direct_cache[scan8[0] - 1*8], 0x01010101*(MB_TYPE_DIRECT2>>1));
+ }else if(IS_8X8(top_type)){
+ int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
+ h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
+ h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
+ }else{
+ AV_WN32A(&h->direct_cache[scan8[0] - 1*8], 0x01010101*(MB_TYPE_16x16>>1));
+ }
+
+ if(IS_DIRECT(left_type[0]))
+ h->direct_cache[scan8[0] - 1 + 0*8]= MB_TYPE_DIRECT2>>1;
+ else if(IS_8X8(left_type[0]))
+ h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[h->mb2b8_xy[left_xy[0]] + 1 + h->b8_stride*(left_block[0]>>1)];
+ else
+ h->direct_cache[scan8[0] - 1 + 0*8]= MB_TYPE_16x16>>1;
+
+ if(IS_DIRECT(left_type[1]))
+ h->direct_cache[scan8[0] - 1 + 2*8]= MB_TYPE_DIRECT2>>1;
+ else if(IS_8X8(left_type[1]))
+ h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[h->mb2b8_xy[left_xy[1]] + 1 + h->b8_stride*(left_block[2]>>1)];
+ else
+ h->direct_cache[scan8[0] - 1 + 2*8]= MB_TYPE_16x16>>1;
+ }
+ }
+ }
+ if(FRAME_MBAFF){
+#define MAP_MVS\
+ MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\
+ MAP_F2F(scan8[0] + 0 - 1*8, top_type)\
+ MAP_F2F(scan8[0] + 1 - 1*8, top_type)\
+ MAP_F2F(scan8[0] + 2 - 1*8, top_type)\
+ MAP_F2F(scan8[0] + 3 - 1*8, top_type)\
+ MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\
+ MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\
+ MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\
+ MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\
+ MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])
+ if(MB_FIELD){
+#define MAP_F2F(idx, mb_type)\
+ if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
+ h->ref_cache[list][idx] <<= 1;\
+ h->mv_cache[list][idx][1] /= 2;\
+ h->mvd_cache[list][idx][1] /= 2;\
+ }
+ MAP_MVS
+#undef MAP_F2F
+ }else{
+#define MAP_F2F(idx, mb_type)\
+ if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
+ h->ref_cache[list][idx] >>= 1;\
+ h->mv_cache[list][idx][1] <<= 1;\
+ h->mvd_cache[list][idx][1] <<= 1;\
+ }
+ MAP_MVS
+#undef MAP_F2F
+ }
+ }
+ }
+ }
+#endif
+
+ h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
+}
+
+/**
+ *
+ * @returns non zero if the loop filter can be skiped
+ */
+static int fill_filter_caches(H264Context *h, int mb_type){
+ MpegEncContext * const s = &h->s;
+ const int mb_xy= h->mb_xy;
+ int top_xy, left_xy[2];
+ int top_type, left_type[2];
+
+ top_xy = mb_xy - (s->mb_stride << MB_FIELD);
+
+ //FIXME deblocking could skip the intra and nnz parts.
+
+ /* Wow, what a mess, why didn't they simplify the interlacing & intra
+ * stuff, I can't imagine that these complex rules are worth it. */
+
+ left_xy[1] = left_xy[0] = mb_xy-1;
+ if(FRAME_MBAFF){
+ const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]);
+ const int curr_mb_field_flag = IS_INTERLACED(mb_type);
+ if(s->mb_y&1){
+ if (left_mb_field_flag != curr_mb_field_flag) {
+ left_xy[0] -= s->mb_stride;
+ }
+ }else{
+ if(curr_mb_field_flag){
+ top_xy += s->mb_stride & (((s->current_picture.mb_type[top_xy ]>>7)&1)-1);
+ }
+ if (left_mb_field_flag != curr_mb_field_flag) {
+ left_xy[1] += s->mb_stride;
+ }
+ }
+ }
+
+ h->top_mb_xy = top_xy;
+ h->left_mb_xy[0] = left_xy[0];
+ h->left_mb_xy[1] = left_xy[1];
+ {
+ //for sufficiently low qp, filtering wouldn't do anything
+ //this is a conservative estimate: could also check beta_offset and more accurate chroma_qp
+ int qp_thresh = h->qp_thresh; //FIXME strictly we should store qp_thresh for each mb of a slice
+ int qp = s->current_picture.qscale_table[mb_xy];
+ if(qp <= qp_thresh
+ && (left_xy[0]<0 || ((qp + s->current_picture.qscale_table[left_xy[0]] + 1)>>1) <= qp_thresh)
+ && (top_xy < 0 || ((qp + s->current_picture.qscale_table[top_xy ] + 1)>>1) <= qp_thresh)){
+ if(!FRAME_MBAFF)
+ return 1;
+ if( (left_xy[0]< 0 || ((qp + s->current_picture.qscale_table[left_xy[1] ] + 1)>>1) <= qp_thresh)
+ && (top_xy < s->mb_stride || ((qp + s->current_picture.qscale_table[top_xy -s->mb_stride] + 1)>>1) <= qp_thresh))
+ return 1;
+ }
+ }
+
+ if(h->deblocking_filter == 2){
+ h->top_type = top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
+ h->left_type[0]= left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
+ h->left_type[1]= left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
+ }else{
+ h->top_type = top_type = h->slice_table[top_xy ] < 0xFFFF ? s->current_picture.mb_type[top_xy] : 0;
+ h->left_type[0]= left_type[0] = h->slice_table[left_xy[0] ] < 0xFFFF ? s->current_picture.mb_type[left_xy[0]] : 0;
+ h->left_type[1]= left_type[1] = h->slice_table[left_xy[1] ] < 0xFFFF ? s->current_picture.mb_type[left_xy[1]] : 0;
+ }
+ if(IS_INTRA(mb_type))
+ return 0;
+
+ AV_COPY64(&h->non_zero_count_cache[0+8*1], &h->non_zero_count[mb_xy][ 0]);
+ AV_COPY64(&h->non_zero_count_cache[0+8*2], &h->non_zero_count[mb_xy][ 8]);
+ AV_COPY32(&h->non_zero_count_cache[0+8*5], &h->non_zero_count[mb_xy][16]);
+ AV_COPY32(&h->non_zero_count_cache[4+8*3], &h->non_zero_count[mb_xy][20]);
+ AV_COPY64(&h->non_zero_count_cache[0+8*4], &h->non_zero_count[mb_xy][24]);
+
+ h->cbp= h->cbp_table[mb_xy];
+
+ {
+ int list;
+ for(list=0; list<h->list_count; list++){
+ int8_t *ref;
+ int y, b_stride;
+ int16_t (*mv_dst)[2];
+ int16_t (*mv_src)[2];
+
+ if(!USES_LIST(mb_type, list)){
+ fill_rectangle( h->mv_cache[list][scan8[0]], 4, 4, 8, pack16to32(0,0), 4);
+ AV_WN32A(&h->ref_cache[list][scan8[ 0]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
+ AV_WN32A(&h->ref_cache[list][scan8[ 2]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
+ AV_WN32A(&h->ref_cache[list][scan8[ 8]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
+ AV_WN32A(&h->ref_cache[list][scan8[10]], ((LIST_NOT_USED)&0xFF)*0x01010101u);
+ continue;
+ }
+
+ ref = &s->current_picture.ref_index[list][h->mb2b8_xy[mb_xy]];
+ {
+ int (*ref2frm)[64] = h->ref2frm[ h->slice_num&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
+ AV_WN32A(&h->ref_cache[list][scan8[ 0]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
+ AV_WN32A(&h->ref_cache[list][scan8[ 2]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
+ ref += h->b8_stride;
+ AV_WN32A(&h->ref_cache[list][scan8[ 8]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
+ AV_WN32A(&h->ref_cache[list][scan8[10]], (pack16to32(ref2frm[list][ref[0]],ref2frm[list][ref[1]])&0x00FF00FF)*0x0101);
+ }
+
+ b_stride = h->b_stride;
+ mv_dst = &h->mv_cache[list][scan8[0]];
+ mv_src = &s->current_picture.motion_val[list][4*s->mb_x + 4*s->mb_y*b_stride];
+ for(y=0; y<4; y++){
+ AV_COPY128(mv_dst + 8*y, mv_src + y*b_stride);
+ }
+
+ }
+ }
+
+
+/*
+0 . T T. T T T T
+1 L . .L . . . .
+2 L . .L . . . .
+3 . T TL . . . .
+4 L . .L . . . .
+5 L . .. . . . .
+*/
+//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
+ if(top_type){
+ AV_COPY32(&h->non_zero_count_cache[4+8*0], &h->non_zero_count[top_xy][4+3*8]);
+ }
+
+ if(left_type[0]){
+ h->non_zero_count_cache[3+8*1]= h->non_zero_count[left_xy[0]][7+0*8];
+ h->non_zero_count_cache[3+8*2]= h->non_zero_count[left_xy[0]][7+1*8];
+ h->non_zero_count_cache[3+8*3]= h->non_zero_count[left_xy[0]][7+2*8];
+ h->non_zero_count_cache[3+8*4]= h->non_zero_count[left_xy[0]][7+3*8];
+ }
+
+ // CAVLC 8x8dct requires NNZ values for residual decoding that differ from what the loop filter needs
+ if(!CABAC && h->pps.transform_8x8_mode){
+ if(IS_8x8DCT(top_type)){
+ h->non_zero_count_cache[4+8*0]=
+ h->non_zero_count_cache[5+8*0]= h->cbp_table[top_xy] & 4;
+ h->non_zero_count_cache[6+8*0]=
+ h->non_zero_count_cache[7+8*0]= h->cbp_table[top_xy] & 8;
+ }
+ if(IS_8x8DCT(left_type[0])){
+ h->non_zero_count_cache[3+8*1]=
+ h->non_zero_count_cache[3+8*2]= h->cbp_table[left_xy[0]]&2; //FIXME check MBAFF
+ }
+ if(IS_8x8DCT(left_type[1])){
+ h->non_zero_count_cache[3+8*3]=
+ h->non_zero_count_cache[3+8*4]= h->cbp_table[left_xy[1]]&8; //FIXME check MBAFF
+ }
+
+ if(IS_8x8DCT(mb_type)){
+ h->non_zero_count_cache[scan8[0 ]]= h->non_zero_count_cache[scan8[1 ]]=
+ h->non_zero_count_cache[scan8[2 ]]= h->non_zero_count_cache[scan8[3 ]]= h->cbp & 1;
+
+ h->non_zero_count_cache[scan8[0+ 4]]= h->non_zero_count_cache[scan8[1+ 4]]=
+ h->non_zero_count_cache[scan8[2+ 4]]= h->non_zero_count_cache[scan8[3+ 4]]= h->cbp & 2;
+
+ h->non_zero_count_cache[scan8[0+ 8]]= h->non_zero_count_cache[scan8[1+ 8]]=
+ h->non_zero_count_cache[scan8[2+ 8]]= h->non_zero_count_cache[scan8[3+ 8]]= h->cbp & 4;
+
+ h->non_zero_count_cache[scan8[0+12]]= h->non_zero_count_cache[scan8[1+12]]=
+ h->non_zero_count_cache[scan8[2+12]]= h->non_zero_count_cache[scan8[3+12]]= h->cbp & 8;
+ }
+ }
+
+ if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
+ int list;
+ for(list=0; list<h->list_count; list++){
+ if(USES_LIST(top_type, list)){
+ const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
+ const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
+ int (*ref2frm)[64] = h->ref2frm[ h->slice_table[top_xy]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
+ AV_COPY128(h->mv_cache[list][scan8[0] + 0 - 1*8], s->current_picture.motion_val[list][b_xy + 0]);
+ h->ref_cache[list][scan8[0] + 0 - 1*8]=
+ h->ref_cache[list][scan8[0] + 1 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 0]];
+ h->ref_cache[list][scan8[0] + 2 - 1*8]=
+ h->ref_cache[list][scan8[0] + 3 - 1*8]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + 1]];
+ }else{
+ AV_ZERO128(h->mv_cache[list][scan8[0] + 0 - 1*8]);
+ AV_WN32A(&h->ref_cache[list][scan8[0] + 0 - 1*8], ((LIST_NOT_USED)&0xFF)*0x01010101u);
+ }
+
+ if(!IS_INTERLACED(mb_type^left_type[0])){
+ if(USES_LIST(left_type[0], list)){
+ const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
+ const int b8_xy= h->mb2b8_xy[left_xy[0]] + 1;
+ int (*ref2frm)[64] = h->ref2frm[ h->slice_table[left_xy[0]]&(MAX_SLICES-1) ][0] + (MB_MBAFF ? 20 : 2);
+ AV_COPY32(h->mv_cache[list][scan8[0] - 1 + 0 ], s->current_picture.motion_val[list][b_xy + h->b_stride*0]);
+ AV_COPY32(h->mv_cache[list][scan8[0] - 1 + 8 ], s->current_picture.motion_val[list][b_xy + h->b_stride*1]);
+ AV_COPY32(h->mv_cache[list][scan8[0] - 1 +16 ], s->current_picture.motion_val[list][b_xy + h->b_stride*2]);
+ AV_COPY32(h->mv_cache[list][scan8[0] - 1 +24 ], s->current_picture.motion_val[list][b_xy + h->b_stride*3]);
+ h->ref_cache[list][scan8[0] - 1 + 0 ]=
+ h->ref_cache[list][scan8[0] - 1 + 8 ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + h->b8_stride*0]];
+ h->ref_cache[list][scan8[0] - 1 +16 ]=
+ h->ref_cache[list][scan8[0] - 1 +24 ]= ref2frm[list][s->current_picture.ref_index[list][b8_xy + h->b8_stride*1]];
+ }else{
+ AV_ZERO32(h->mv_cache [list][scan8[0] - 1 + 0 ]);
+ AV_ZERO32(h->mv_cache [list][scan8[0] - 1 + 8 ]);
+ AV_ZERO32(h->mv_cache [list][scan8[0] - 1 +16 ]);
+ AV_ZERO32(h->mv_cache [list][scan8[0] - 1 +24 ]);
+ h->ref_cache[list][scan8[0] - 1 + 0 ]=
+ h->ref_cache[list][scan8[0] - 1 + 8 ]=
+ h->ref_cache[list][scan8[0] - 1 + 16 ]=
+ h->ref_cache[list][scan8[0] - 1 + 24 ]= LIST_NOT_USED;
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * gets the predicted intra4x4 prediction mode.
+ */
+static inline int pred_intra_mode(H264Context *h, int n){
+ const int index8= scan8[n];
+ const int left= h->intra4x4_pred_mode_cache[index8 - 1];
+ const int top = h->intra4x4_pred_mode_cache[index8 - 8];
+ const int min= FFMIN(left, top);
+
+ tprintf(h->s.avctx, "mode:%d %d min:%d\n", left ,top, min);
+
+ if(min<0) return DC_PRED;
+ else return min;
+}
+
+static inline void write_back_non_zero_count(H264Context *h){
+ const int mb_xy= h->mb_xy;
+
+ AV_COPY64(&h->non_zero_count[mb_xy][ 0], &h->non_zero_count_cache[0+8*1]);
+ AV_COPY64(&h->non_zero_count[mb_xy][ 8], &h->non_zero_count_cache[0+8*2]);
+ AV_COPY32(&h->non_zero_count[mb_xy][16], &h->non_zero_count_cache[0+8*5]);
+ AV_COPY32(&h->non_zero_count[mb_xy][20], &h->non_zero_count_cache[4+8*3]);
+ AV_COPY64(&h->non_zero_count[mb_xy][24], &h->non_zero_count_cache[0+8*4]);
+}
+
+static inline void write_back_motion(H264Context *h, int mb_type){
+ MpegEncContext * const s = &h->s;
+ const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
+ const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
+ int list;
+
+ if(!USES_LIST(mb_type, 0))
+ fill_rectangle(&s->current_picture.ref_index[0][b8_xy], 2, 2, h->b8_stride, (uint8_t)LIST_NOT_USED, 1);
+
+ for(list=0; list<h->list_count; list++){
+ int y, b_stride;
+ int16_t (*mv_dst)[2];
+ int16_t (*mv_src)[2];
+
+ if(!USES_LIST(mb_type, list))
+ continue;
+
+ b_stride = h->b_stride;
+ mv_dst = &s->current_picture.motion_val[list][b_xy];
+ mv_src = &h->mv_cache[list][scan8[0]];
+ for(y=0; y<4; y++){
+ AV_COPY128(mv_dst + y*b_stride, mv_src + 8*y);
+ }
+ if( CABAC ) {
+ int16_t (*mvd_dst)[2] = &h->mvd_table[list][b_xy];
+ int16_t (*mvd_src)[2] = &h->mvd_cache[list][scan8[0]];
+ if(IS_SKIP(mb_type))
+ fill_rectangle(mvd_dst, 4, 4, h->b_stride, 0, 4);
+ else
+ for(y=0; y<4; y++){
+ AV_COPY128(mvd_dst + y*b_stride, mvd_src + 8*y);
+ }
+ }
+
+ {
+ int8_t *ref_index = &s->current_picture.ref_index[list][b8_xy];
+ ref_index[0+0*h->b8_stride]= h->ref_cache[list][scan8[0]];
+ ref_index[1+0*h->b8_stride]= h->ref_cache[list][scan8[4]];
+ ref_index[0+1*h->b8_stride]= h->ref_cache[list][scan8[8]];
+ ref_index[1+1*h->b8_stride]= h->ref_cache[list][scan8[12]];
+ }
+ }
+
+ if(h->slice_type_nos == FF_B_TYPE && CABAC){
+ if(IS_8X8(mb_type)){
+ uint8_t *direct_table = &h->direct_table[b8_xy];
+ direct_table[1+0*h->b8_stride] = h->sub_mb_type[1]>>1;
+ direct_table[0+1*h->b8_stride] = h->sub_mb_type[2]>>1;
+ direct_table[1+1*h->b8_stride] = h->sub_mb_type[3]>>1;
+ }
+ }
+}
+
+static inline int get_dct8x8_allowed(H264Context *h){
+ if(h->sps.direct_8x8_inference_flag)
+ return !(AV_RN64A(h->sub_mb_type) & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8 )*0x0001000100010001ULL));
+ else
+ return !(AV_RN64A(h->sub_mb_type) & ((MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_8x8|MB_TYPE_DIRECT2)*0x0001000100010001ULL));
+}
+
+/**
+ * decodes a P_SKIP or B_SKIP macroblock
+ */
+static void decode_mb_skip(H264Context *h){
+ MpegEncContext * const s = &h->s;
+ const int mb_xy= h->mb_xy;
+ int mb_type=0;
+
+ memset(h->non_zero_count[mb_xy], 0, 32);
+ memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
+
+ if(MB_FIELD)
+ mb_type|= MB_TYPE_INTERLACED;
+
+ if( h->slice_type_nos == FF_B_TYPE )
+ {
+ // just for fill_caches. pred_direct_motion will set the real mb_type
+ mb_type|= MB_TYPE_L0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP;
+ if(h->direct_spatial_mv_pred){
+ fill_decode_neighbors(h, mb_type);
+ fill_decode_caches(h, mb_type); //FIXME check what is needed and what not ...
+ }
+ ff_h264_pred_direct_motion(h, &mb_type);
+ mb_type|= MB_TYPE_SKIP;
+ }
+ else
+ {
+ int mx, my;
+ mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP;
+
+ fill_decode_neighbors(h, mb_type);
+ fill_decode_caches(h, mb_type); //FIXME check what is needed and what not ...
+ pred_pskip_motion(h, &mx, &my);
+ fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
+ fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4);
+ }
+
+ write_back_motion(h, mb_type);
+ s->current_picture.mb_type[mb_xy]= mb_type;
+ s->current_picture.qscale_table[mb_xy]= s->qscale;
+ h->slice_table[ mb_xy ]= h->slice_num;
+ h->prev_mb_skipped= 1;
+}
+
+#include "h264_mvpred.h" //For pred_pskip_motion()
+
#endif /* AVCODEC_H264_H */
projects / ffmpeg / blobdiff