X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fh263dec.c;h=d75904cec4b41f939f5cd21e7b98831682d6d0ac;hb=c1736936982e9b0d3400462eda2b0bf410f6e003;hp=dda05668aa13bfcd9484ff99b447661045d0eb5a;hpb=b250f9c66d3ddd84652d158fb979a5f21e3f2c71;p=ffmpeg

diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index dda05668aa1..d75904cec4b 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -1,6 +1,6 @@
 /*
  * H.263 decoder
- * Copyright (c) 2001 Fabrice Bellard.
+ * Copyright (c) 2001 Fabrice Bellard
  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
  *
  * This file is part of FFmpeg.
@@ -21,16 +21,18 @@
  */
 
 /**
- * @file h263dec.c
+ * @file libavcodec/h263dec.c
  * H.263 decoder.
  */
 
+#include "internal.h"
 #include "avcodec.h"
 #include "dsputil.h"
 #include "mpegvideo.h"
 #include "h263_parser.h"
 #include "mpeg4video_parser.h"
 #include "msmpeg4.h"
+#include "vdpau_internal.h"
 
 //#define DEBUG
 //#define PRINT_FRAME_TIME
@@ -51,19 +53,21 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
     s->quant_precision=5;
     s->decode_mb= ff_h263_decode_mb;
     s->low_delay= 1;
-    avctx->pix_fmt= PIX_FMT_YUV420P;
+    avctx->pix_fmt= avctx->get_format(avctx, avctx->codec->pix_fmts);
     s->unrestricted_mv= 1;
 
     /* select sub codec */
     switch(avctx->codec->id) {
     case CODEC_ID_H263:
         s->unrestricted_mv= 0;
+        avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
         break;
     case CODEC_ID_MPEG4:
         s->decode_mb= ff_mpeg4_decode_mb;
         s->time_increment_bits = 4; /* default value for broken headers */
         s->h263_pred = 1;
         s->low_delay = 0; //default, might be overriden in the vol header during header parsing
+        avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
         break;
     case CODEC_ID_MSMPEG4V1:
         s->h263_msmpeg4 = 1;
@@ -95,6 +99,7 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
         s->h263_msmpeg4 = 1;
         s->h263_pred = 1;
         s->msmpeg4_version=6;
+        avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
         break;
     case CODEC_ID_H263I:
         break;
@@ -105,13 +110,14 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
         return -1;
     }
     s->codec_id= avctx->codec->id;
+    avctx->hwaccel= ff_find_hwaccel(avctx->codec->id, avctx->pix_fmt);
 
     /* 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)
             return -1;
 
-    if (ENABLE_MSMPEG4_DECODER && s->h263_msmpeg4)
+    if (CONFIG_MSMPEG4_DECODER && s->h263_msmpeg4)
         ff_msmpeg4_decode_init(s);
     else
         h263_decode_init_vlc(s);
@@ -133,7 +139,7 @@ av_cold int ff_h263_decode_end(AVCodecContext *avctx)
 static int get_consumed_bytes(MpegEncContext *s, int buf_size){
     int pos= (get_bits_count(&s->gb)+7)>>3;
 
-    if(s->divx_packed){
+    if(s->divx_packed || s->avctx->hwaccel){
         //we would have to scan through the whole buf to handle the weird reordering ...
         return buf_size;
     }else if(s->flags&CODEC_FLAG_TRUNCATED){
@@ -159,6 +165,13 @@ static int decode_slice(MpegEncContext *s){
 
     ff_set_qscale(s, s->qscale);
 
+    if (s->avctx->hwaccel) {
+        const uint8_t *start= s->gb.buffer + get_bits_count(&s->gb)/8;
+        const uint8_t *end  = ff_h263_find_resync_marker(start + 1, s->gb.buffer_end);
+        skip_bits_long(&s->gb, 8*(end - start));
+        return s->avctx->hwaccel->decode_slice(s->avctx, start, end - start);
+    }
+
     if(s->partitioned_frame){
         const int qscale= s->qscale;
 
@@ -255,8 +268,8 @@ static int decode_slice(MpegEncContext *s){
     /* try to detect the padding bug */
     if(      s->codec_id==CODEC_ID_MPEG4
        &&   (s->workaround_bugs&FF_BUG_AUTODETECT)
-       &&    s->gb.size_in_bits - get_bits_count(&s->gb) >=0
-       &&    s->gb.size_in_bits - get_bits_count(&s->gb) < 48
+       &&    get_bits_left(&s->gb) >=0
+       &&    get_bits_left(&s->gb) < 48
 //       &&   !s->resync_marker
        &&   !s->data_partitioning){
 
@@ -287,7 +300,7 @@ static int decode_slice(MpegEncContext *s){
 
     // handle formats which don't have unique end markers
     if(s->msmpeg4_version || (s->workaround_bugs&FF_BUG_NO_PADDING)){ //FIXME perhaps solve this more cleanly
-        int left= s->gb.size_in_bits - get_bits_count(&s->gb);
+        int left= get_bits_left(&s->gb);
         int max_extra=7;
 
         /* no markers in M$ crap */
@@ -312,7 +325,7 @@ static int decode_slice(MpegEncContext *s){
     }
 
     av_log(s->avctx, AV_LOG_ERROR, "slice end not reached but screenspace end (%d left %06X, score= %d)\n",
-            s->gb.size_in_bits - get_bits_count(&s->gb),
+            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);
@@ -322,19 +335,16 @@ static int decode_slice(MpegEncContext *s){
 
 int ff_h263_decode_frame(AVCodecContext *avctx,
                              void *data, int *data_size,
-                             const uint8_t *buf, int buf_size)
+                             AVPacket *avpkt)
 {
+    const uint8_t *buf = avpkt->data;
+    int buf_size = avpkt->size;
     MpegEncContext *s = avctx->priv_data;
     int ret;
     AVFrame *pict = data;
 
 #ifdef PRINT_FRAME_TIME
 uint64_t time= rdtsc();
-#endif
-#ifdef DEBUG
-    av_log(avctx, AV_LOG_DEBUG, "*****frame %d size=%d\n", avctx->frame_number, buf_size);
-    if(buf_size>0)
-        av_log(avctx, AV_LOG_DEBUG, "bytes=%x %x %x %x\n", buf[0], buf[1], buf[2], buf[3]);
 #endif
     s->flags= avctx->flags;
     s->flags2= avctx->flags2;
@@ -355,9 +365,9 @@ uint64_t time= rdtsc();
     if(s->flags&CODEC_FLAG_TRUNCATED){
         int next;
 
-        if(ENABLE_MPEG4_DECODER && s->codec_id==CODEC_ID_MPEG4){
+        if(CONFIG_MPEG4_DECODER && s->codec_id==CODEC_ID_MPEG4){
             next= ff_mpeg4_find_frame_end(&s->parse_context, buf, buf_size);
-        }else if(ENABLE_H263_DECODER && s->codec_id==CODEC_ID_H263){
+        }else if(CONFIG_H263_DECODER && s->codec_id==CODEC_ID_H263){
             next= ff_h263_find_frame_end(&s->parse_context, buf, buf_size);
         }else{
             av_log(s->avctx, AV_LOG_ERROR, "this codec does not support truncated bitstreams\n");
@@ -390,9 +400,9 @@ retry:
     }
 
     /* let's go :-) */
-    if (ENABLE_WMV2_DECODER && s->msmpeg4_version==5) {
+    if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5) {
         ret= ff_wmv2_decode_picture_header(s);
-    } else if (ENABLE_MSMPEG4_DECODER && s->msmpeg4_version) {
+    } else if (CONFIG_MSMPEG4_DECODER && s->msmpeg4_version) {
         ret = msmpeg4_decode_picture_header(s);
     } else if (s->h263_pred) {
         if(s->avctx->extradata_size && s->picture_number==0){
@@ -421,19 +431,19 @@ retry:
     avctx->has_b_frames= !s->low_delay;
 
     if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){
-        if(s->stream_codec_tag == ff_get_fourcc("XVID") ||
-           s->codec_tag == ff_get_fourcc("XVID") || s->codec_tag == ff_get_fourcc("XVIX") ||
-           s->codec_tag == ff_get_fourcc("RMP4"))
+        if(s->stream_codec_tag == AV_RL32("XVID") ||
+           s->codec_tag == AV_RL32("XVID") || s->codec_tag == AV_RL32("XVIX") ||
+           s->codec_tag == AV_RL32("RMP4"))
             s->xvid_build= -1;
 #if 0
-        if(s->codec_tag == ff_get_fourcc("DIVX") && s->vo_type==0 && s->vol_control_parameters==1
+        if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==1
            && s->padding_bug_score > 0 && s->low_delay) // XVID with modified fourcc
             s->xvid_build= -1;
 #endif
     }
 
     if(s->xvid_build==0 && s->divx_version==0 && s->lavc_build==0){
-        if(s->codec_tag == ff_get_fourcc("DIVX") && s->vo_type==0 && s->vol_control_parameters==0)
+        if(s->codec_tag == AV_RL32("DIVX") && s->vo_type==0 && s->vol_control_parameters==0)
             s->divx_version= 400; //divx 4
     }
 
@@ -443,10 +453,10 @@ retry:
     }
 
     if(s->workaround_bugs&FF_BUG_AUTODETECT){
-        if(s->codec_tag == ff_get_fourcc("XVIX"))
+        if(s->codec_tag == AV_RL32("XVIX"))
             s->workaround_bugs|= FF_BUG_XVID_ILACE;
 
-        if(s->codec_tag == ff_get_fourcc("UMP4")){
+        if(s->codec_tag == AV_RL32("UMP4")){
             s->workaround_bugs|= FF_BUG_UMP4;
         }
 
@@ -573,7 +583,7 @@ retry:
         goto retry;
     }
 
-    if((s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P))
+    if((s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P || s->codec_id == CODEC_ID_H263I))
         s->gob_index = ff_h263_get_gob_height(s);
 
     // for hurry_up==5
@@ -612,15 +622,21 @@ retry:
     if(MPV_frame_start(s, avctx) < 0)
         return -1;
 
-#ifdef DEBUG
-    av_log(avctx, AV_LOG_DEBUG, "qscale=%d\n", s->qscale);
-#endif
+    if (CONFIG_MPEG4_VDPAU_DECODER && (s->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)) {
+        ff_vdpau_mpeg4_decode_picture(s, buf, buf_size);
+        goto frame_end;
+    }
+
+    if (avctx->hwaccel) {
+        if (avctx->hwaccel->start_frame(avctx, buf, buf_size) < 0)
+            return -1;
+    }
 
     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()
-    if (ENABLE_WMV2_DECODER && s->msmpeg4_version==5){
+    if (CONFIG_WMV2_DECODER && s->msmpeg4_version==5){
         ret = ff_wmv2_decode_secondary_picture_header(s);
         if(ret<0) return ret;
         if(ret==1) goto intrax8_decoded;
@@ -647,7 +663,7 @@ retry:
     }
 
     if (s->h263_msmpeg4 && s->msmpeg4_version<4 && s->pict_type==FF_I_TYPE)
-        if(!ENABLE_MSMPEG4_DECODER || msmpeg4_decode_ext_header(s, buf_size) < 0){
+        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;
         }
 
@@ -671,10 +687,12 @@ retry:
         }
 
         if(startcode_found){
-            s->bitstream_buffer= av_fast_realloc(
-                s->bitstream_buffer,
+            av_fast_malloc(
+                &s->bitstream_buffer,
                 &s->allocated_bitstream_buffer_size,
                 buf_size - current_pos + FF_INPUT_BUFFER_PADDING_SIZE);
+            if (!s->bitstream_buffer)
+                return AVERROR(ENOMEM);
             memcpy(s->bitstream_buffer, buf + current_pos, buf_size - current_pos);
             s->bitstream_buffer_size= buf_size - current_pos;
         }
@@ -683,6 +701,12 @@ retry:
 intrax8_decoded:
     ff_er_frame_end(s);
 
+frame_end:
+    if (avctx->hwaccel) {
+        if (avctx->hwaccel->end_frame(avctx) < 0)
+            return -1;
+    }
+
     MPV_frame_end(s);
 
 assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type);
@@ -698,10 +722,6 @@ assert(s->current_picture.pict_type == s->pict_type);
         ff_print_debug_info(s, pict);
     }
 
-    /* Return the Picture timestamp as the frame number */
-    /* we subtract 1 because it is added on utils.c     */
-    avctx->frame_number = s->picture_number - 1;
-
 #ifdef PRINT_FRAME_TIME
 av_log(avctx, AV_LOG_DEBUG, "%"PRId64"\n", rdtsc()-time);
 #endif
@@ -721,6 +741,7 @@ AVCodec mpeg4_decoder = {
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
     .flush= ff_mpeg_flush,
     .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
+    .pix_fmts= ff_hwaccel_pixfmt_list_420,
 };
 
 AVCodec h263_decoder = {
@@ -734,7 +755,8 @@ AVCodec h263_decoder = {
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
     .flush= ff_mpeg_flush,
-    .long_name= NULL_IF_CONFIG_SMALL("H.263"),
+    .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
+    .pix_fmts= ff_hwaccel_pixfmt_list_420,
 };
 
 AVCodec msmpeg4v1_decoder = {
@@ -748,6 +770,7 @@ AVCodec msmpeg4v1_decoder = {
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
     .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
+    .pix_fmts= ff_pixfmt_list_420,
 };
 
 AVCodec msmpeg4v2_decoder = {
@@ -761,6 +784,7 @@ AVCodec msmpeg4v2_decoder = {
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
     .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
+    .pix_fmts= ff_pixfmt_list_420,
 };
 
 AVCodec msmpeg4v3_decoder = {
@@ -774,6 +798,7 @@ AVCodec msmpeg4v3_decoder = {
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
     .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
+    .pix_fmts= ff_pixfmt_list_420,
 };
 
 AVCodec wmv1_decoder = {
@@ -787,6 +812,7 @@ AVCodec wmv1_decoder = {
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
     .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
+    .pix_fmts= ff_pixfmt_list_420,
 };
 
 AVCodec h263i_decoder = {
@@ -799,7 +825,8 @@ AVCodec h263i_decoder = {
     ff_h263_decode_end,
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
-    .long_name = NULL_IF_CONFIG_SMALL("H.263i"),
+    .long_name = NULL_IF_CONFIG_SMALL("Intel H.263"),
+    .pix_fmts= ff_pixfmt_list_420,
 };
 
 AVCodec flv_decoder = {
@@ -812,5 +839,22 @@ AVCodec flv_decoder = {
     ff_h263_decode_end,
     ff_h263_decode_frame,
     CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
-    .long_name= NULL_IF_CONFIG_SMALL("Flash Video"),
+    .long_name= NULL_IF_CONFIG_SMALL("Flash Video (FLV) / Sorenson Spark / Sorenson H.263"),
+    .pix_fmts= ff_pixfmt_list_420,
 };
+
+#if CONFIG_MPEG4_VDPAU_DECODER
+AVCodec mpeg4_vdpau_decoder = {
+    "mpeg4_vdpau",
+    CODEC_TYPE_VIDEO,
+    CODEC_ID_MPEG4,
+    sizeof(MpegEncContext),
+    ff_h263_decode_init,
+    NULL,
+    ff_h263_decode_end,
+    ff_h263_decode_frame,
+    CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
+    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 (VDPAU)"),
+    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_VDPAU_MPEG4, PIX_FMT_NONE},
+};
+#endif