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Revert r19317, "simplify slice_end, return size of output frame".

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It returns non decodable B-frames.

Originally committed as revision 19324 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier
2009-07-01 20:35:28 +00:00
parent fb6ecd7285
commit 6be8b20466
1 changed files with 9 additions and 5 deletions
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14
libavcodec/mpeg12.c
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@@ -1935,7 +1935,7 @@ static int slice_decode_thread(AVCodecContext *c, void *arg){
/**
* Handles slice ends.
* @return sizeof(AVFrame) if a frame is output, 0 otherwise
* @return 1 if it seems to be the last slice
*/
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
{
@@ -1966,7 +1966,6 @@ static int slice_end(AVCodecContext *avctx, AVFrame *pict)
if (s->pict_type == FF_B_TYPE || s->low_delay) {
*pict= *(AVFrame*)s->current_picture_ptr;
ff_print_debug_info(s, pict);
return sizeof(*pict);
} else {
s->picture_number++;
/* latency of 1 frame for I- and P-frames */
@@ -1974,11 +1973,13 @@ static int slice_end(AVCodecContext *avctx, AVFrame *pict)
if (s->last_picture_ptr != NULL) {
*pict= *(AVFrame*)s->last_picture_ptr;
ff_print_debug_info(s, pict);
return sizeof(*pict);
}
}
return 1;
} else {
return 0;
}
return 0;
}
static int mpeg1_decode_sequence(AVCodecContext *avctx,
@@ -2316,7 +2317,10 @@ static int decode_chunks(AVCodecContext *avctx,
if (CONFIG_MPEG_VDPAU_DECODER && avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
ff_vdpau_mpeg_picture_complete(s2, buf, buf_size, s->slice_count);
*data_size = slice_end(avctx, picture);
if (slice_end(avctx, picture)) {
if(s2->last_picture_ptr || s2->low_delay) //FIXME merge with the stuff in mpeg_decode_slice
*data_size = sizeof(AVPicture);
}
}
s2->pict_type= 0;
return FFMAX(0, buf_ptr - buf - s2->parse_context.last_index);