]> git.sesse.net Git - ffmpeg/blobdiff - libavcodec/h263dec.c
mpegvideo: Add ff_ prefix to nonstatic functions
[ffmpeg] / libavcodec / h263dec.c
index e2627fa8e44157c8ccd5d43dc09455f094b3eb66..4f0e4563dacdb115bde809a13ad7ca71a795a2ab 100644 (file)
@@ -35,6 +35,7 @@
 #include "mpeg4video_parser.h"
 #include "msmpeg4.h"
 #include "vdpau_internal.h"
+#include "thread.h"
 #include "flv.h"
 #include "mpeg4video.h"
 
@@ -53,7 +54,7 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
     s->workaround_bugs= avctx->workaround_bugs;
 
     // set defaults
-    MPV_decode_defaults(s);
+    ff_MPV_decode_defaults(s);
     s->quant_precision=5;
     s->decode_mb= ff_h263_decode_mb;
     s->low_delay= 1;
@@ -90,6 +91,8 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
         break;
     case CODEC_ID_VC1:
     case CODEC_ID_WMV3:
+    case CODEC_ID_VC1IMAGE:
+    case CODEC_ID_WMV3IMAGE:
         s->h263_pred = 1;
         s->msmpeg4_version=6;
         avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
@@ -107,10 +110,10 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
 
     /* for h263, we allocate the images after having read the header */
     if (avctx->codec->id != CODEC_ID_H263 && avctx->codec->id != CODEC_ID_MPEG4)
-        if (MPV_common_init(s) < 0)
+        if (ff_MPV_common_init(s) < 0)
             return -1;
 
-        h263_decode_init_vlc(s);
+        ff_h263_decode_init_vlc(s);
 
     return 0;
 }
@@ -119,12 +122,12 @@ av_cold int ff_h263_decode_end(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
 
-    MPV_common_end(s);
+    ff_MPV_common_end(s);
     return 0;
 }
 
 /**
- * returns the number of bytes consumed for building the current frame
+ * Return the number of bytes consumed for building the current frame.
  */
 static int get_consumed_bytes(MpegEncContext *s, int buf_size){
     int pos= (get_bits_count(&s->gb)+7)>>3;
@@ -145,7 +148,7 @@ static int get_consumed_bytes(MpegEncContext *s, int buf_size){
 }
 
 static int decode_slice(MpegEncContext *s){
-    const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
+    const int part_mask= s->partitioned_frame ? (ER_AC_END|ER_AC_ERROR) : 0x7F;
     const int mb_size= 16>>s->avctx->lowres;
     s->last_resync_gb= s->gb;
     s->first_slice_line= 1;
@@ -181,7 +184,7 @@ static int decode_slice(MpegEncContext *s){
         /* per-row end of slice checks */
         if(s->msmpeg4_version){
             if(s->resync_mb_y + s->slice_height == s->mb_y){
-                ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, AC_END|DC_END|MV_END);
+                ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_END);
 
                 return 0;
             }
@@ -217,38 +220,40 @@ static int decode_slice(MpegEncContext *s){
             if(ret<0){
                 const int xy= s->mb_x + s->mb_y*s->mb_stride;
                 if(ret==SLICE_END){
-                    MPV_decode_mb(s, s->block);
+                    ff_MPV_decode_mb(s, s->block);
                     if(s->loop_filter)
                         ff_h263_loop_filter(s);
 
 //printf("%d %d %d %06X\n", s->mb_x, s->mb_y, s->gb.size*8 - get_bits_count(&s->gb), show_bits(&s->gb, 24));
-                    ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
+                    ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, ER_MB_END&part_mask);
 
                     s->padding_bug_score--;
 
                     if(++s->mb_x >= s->mb_width){
                         s->mb_x=0;
                         ff_draw_horiz_band(s, s->mb_y*mb_size, mb_size);
+                        ff_MPV_report_decode_progress(s);
                         s->mb_y++;
                     }
                     return 0;
                 }else if(ret==SLICE_NOEND){
                     av_log(s->avctx, AV_LOG_ERROR, "Slice mismatch at MB: %d\n", xy);
-                    ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x+1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
+                    ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x+1, s->mb_y, ER_MB_END&part_mask);
                     return -1;
                 }
                 av_log(s->avctx, AV_LOG_ERROR, "Error at MB: %d\n", xy);
-                ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
+                ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, ER_MB_ERROR&part_mask);
 
                 return -1;
             }
 
-            MPV_decode_mb(s, s->block);
+            ff_MPV_decode_mb(s, s->block);
             if(s->loop_filter)
                 ff_h263_loop_filter(s);
         }
 
         ff_draw_horiz_band(s, s->mb_y*mb_size, mb_size);
+        ff_MPV_report_decode_progress(s);
 
         s->mb_x= 0;
     }
@@ -305,7 +310,7 @@ static int decode_slice(MpegEncContext *s){
             max_extra+= 17;
 
         /* buggy padding but the frame should still end approximately at the bitstream end */
-        if((s->workaround_bugs&FF_BUG_NO_PADDING) && s->error_recognition>=3)
+        if((s->workaround_bugs&FF_BUG_NO_PADDING) && (s->err_recognition&AV_EF_BUFFER))
             max_extra+= 48;
         else if((s->workaround_bugs&FF_BUG_NO_PADDING))
             max_extra+= 256*256*256*64;
@@ -316,7 +321,7 @@ static int decode_slice(MpegEncContext *s){
         else if(left<0){
             av_log(s->avctx, AV_LOG_ERROR, "overreading %d bits\n", -left);
         }else
-            ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, AC_END|DC_END|MV_END);
+            ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_END);
 
         return 0;
     }
@@ -325,7 +330,7 @@ static int decode_slice(MpegEncContext *s){
             get_bits_left(&s->gb),
             show_bits(&s->gb, 24), s->padding_bug_score);
 
-    ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
+    ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, ER_MB_END&part_mask);
 
     return -1;
 }
@@ -385,14 +390,16 @@ retry:
     s->bitstream_buffer_size=0;
 
     if (!s->context_initialized) {
-        if (MPV_common_init(s) < 0) //we need the idct permutaton for reading a custom matrix
+        if (ff_MPV_common_init(s) < 0) //we need the idct permutaton for reading a custom matrix
             return -1;
     }
 
     /* We need to set current_picture_ptr before reading the header,
      * otherwise we cannot store anyting in there */
-    if(s->current_picture_ptr==NULL || s->current_picture_ptr->data[0]){
+    if (s->current_picture_ptr == NULL || s->current_picture_ptr->f.data[0]) {
         int i= ff_find_unused_picture(s, 0);
+        if (i < 0)
+            return i;
         s->current_picture_ptr= &s->picture[i];
     }
 
@@ -400,7 +407,7 @@ retry:
     if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5) {
         ret= ff_wmv2_decode_picture_header(s);
     } else if (CONFIG_MSMPEG4_DECODER && s->msmpeg4_version) {
-        ret = msmpeg4_decode_picture_header(s);
+        ret = ff_msmpeg4_decode_picture_header(s);
     } else if (CONFIG_MPEG4_DECODER && s->h263_pred) {
         if(s->avctx->extradata_size && s->picture_number==0){
             GetBitContext gb;
@@ -414,7 +421,7 @@ retry:
     } else if (CONFIG_FLV_DECODER && s->h263_flv) {
         ret = ff_flv_decode_picture_header(s);
     } else {
-        ret = h263_decode_picture_header(s);
+        ret = ff_h263_decode_picture_header(s);
     }
 
     if(ret==FRAME_SKIPPED) return get_consumed_bytes(s, buf_size);
@@ -550,7 +557,7 @@ retry:
     if (s->codec_id == CODEC_ID_MPEG4 && s->xvid_build>=0 && avctx->idct_algo == FF_IDCT_AUTO && (av_get_cpu_flags() & AV_CPU_FLAG_MMX)) {
         avctx->idct_algo= FF_IDCT_XVIDMMX;
         avctx->coded_width= 0; // force reinit
-//        dsputil_init(&s->dsp, avctx);
+//        ff_dsputil_init(&s->dsp, avctx);
         s->picture_number=0;
     }
 #endif
@@ -565,7 +572,7 @@ retry:
         /* H.263 could change picture size any time */
         ParseContext pc= s->parse_context; //FIXME move these demuxng hack to avformat
         s->parse_context.buffer=0;
-        MPV_common_end(s);
+        ff_MPV_common_end(s);
         s->parse_context= pc;
     }
     if (!s->context_initialized) {
@@ -578,8 +585,8 @@ retry:
         s->gob_index = ff_h263_get_gob_height(s);
 
     // for skipping the frame
-    s->current_picture.pict_type= s->pict_type;
-    s->current_picture.key_frame= s->pict_type == AV_PICTURE_TYPE_I;
+    s->current_picture.f.pict_type = s->pict_type;
+    s->current_picture.f.key_frame = s->pict_type == AV_PICTURE_TYPE_I;
 
     /* skip B-frames if we don't have reference frames */
     if(s->last_picture_ptr==NULL && (s->pict_type==AV_PICTURE_TYPE_B || s->dropable)) return get_consumed_bytes(s, buf_size);
@@ -606,9 +613,11 @@ retry:
         s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;
     }
 
-    if(MPV_frame_start(s, avctx) < 0)
+    if(ff_MPV_frame_start(s, avctx) < 0)
         return -1;
 
+    if (!s->divx_packed) ff_thread_finish_setup(avctx);
+
     if (CONFIG_MPEG4_VDPAU_DECODER && (s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)) {
         ff_vdpau_mpeg4_decode_picture(s, s->gb.buffer, s->gb.buffer_end - s->gb.buffer);
         goto frame_end;
@@ -622,7 +631,7 @@ retry:
     ff_er_frame_start(s);
 
     //the second part of the wmv2 header contains the MB skip bits which are stored in current_picture->mb_type
-    //which is not available before MPV_frame_start()
+    //which is not available before ff_MPV_frame_start()
     if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5){
         ret = ff_wmv2_decode_secondary_picture_header(s);
         if(ret<0) return ret;
@@ -633,25 +642,28 @@ retry:
     s->mb_x=0;
     s->mb_y=0;
 
-    decode_slice(s);
+    ret = decode_slice(s);
     while(s->mb_y<s->mb_height){
         if(s->msmpeg4_version){
             if(s->slice_height==0 || s->mb_x!=0 || (s->mb_y%s->slice_height)!=0 || get_bits_count(&s->gb) > s->gb.size_in_bits)
                 break;
         }else{
+            int prev_x=s->mb_x, prev_y=s->mb_y;
             if(ff_h263_resync(s)<0)
                 break;
+            if (prev_y * s->mb_width + prev_x < s->mb_y * s->mb_width + s->mb_x)
+                s->error_occurred = 1;
         }
 
         if(s->msmpeg4_version<4 && s->h263_pred)
             ff_mpeg4_clean_buffers(s);
 
-        decode_slice(s);
+        if (decode_slice(s) < 0) ret = AVERROR_INVALIDDATA;
     }
 
     if (s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type==AV_PICTURE_TYPE_I)
-        if(!CONFIG_MSMPEG4_DECODER || msmpeg4_decode_ext_header(s, buf_size) < 0){
-            s->error_status_table[s->mb_num-1]= AC_ERROR|DC_ERROR|MV_ERROR;
+        if(!CONFIG_MSMPEG4_DECODER || ff_msmpeg4_decode_ext_header(s, buf_size) < 0){
+            s->error_status_table[s->mb_num-1]= ER_MB_ERROR;
         }
 
     assert(s->bitstream_buffer_size==0);
@@ -695,10 +707,10 @@ intrax8_decoded:
             return -1;
     }
 
-    MPV_frame_end(s);
+    ff_MPV_frame_end(s);
 
-assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);
-assert(s->current_picture.pict_type == s->pict_type);
+    assert(s->current_picture.f.pict_type == s->current_picture_ptr->f.pict_type);
+    assert(s->current_picture.f.pict_type == s->pict_type);
     if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
         *pict= *(AVFrame*)s->current_picture_ptr;
     } else if (s->last_picture_ptr != NULL) {
@@ -714,19 +726,18 @@ assert(s->current_picture.pict_type == s->pict_type);
 av_log(avctx, AV_LOG_DEBUG, "%"PRId64"\n", rdtsc()-time);
 #endif
 
-    return get_consumed_bytes(s, buf_size);
+    return (ret && (avctx->err_recognition & AV_EF_EXPLODE))?ret:get_consumed_bytes(s, buf_size);
 }
 
 AVCodec ff_h263_decoder = {
-    "h263",
-    AVMEDIA_TYPE_VIDEO,
-    CODEC_ID_H263,
-    sizeof(MpegEncContext),
-    ff_h263_decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
+    .name           = "h263",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = CODEC_ID_H263,
+    .priv_data_size = sizeof(MpegEncContext),
+    .init           = ff_h263_decode_init,
+    .close          = ff_h263_decode_end,
+    .decode         = ff_h263_decode_frame,
+    .capabilities   = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
     .flush= ff_mpeg_flush,
     .max_lowres= 3,
     .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),