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ffv1: keep last_frame (to be used for error concealment)

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-07-16 15:38:27 +02:00
parent 8486c8cc9a
commit 371d37fcf5
1 changed files with 6 additions and 1 deletions
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7
libavcodec/ffv1.c
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@ -181,6 +181,7 @@ typedef struct FFV1Context{
int flags;
int picture_number;
AVFrame picture;
AVFrame last_picture;
int plane_count;
int ac; ///< 1=range coder <-> 0=golomb rice
int ac_byte_count; ///< number of bytes used for AC coding
@ -1364,6 +1365,8 @@ static av_cold int common_end(AVCodecContext *avctx){
if (avctx->codec->decode && s->picture.data[0])
avctx->release_buffer(avctx, &s->picture);
if (avctx->codec->decode && s->last_picture.data[0])
avctx->release_buffer(avctx, &s->last_picture);
for(j=0; j<s->slice_count; j++){
FFV1Context *fs= s->slice_context[j];
@ -1988,7 +1991,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
p->key_frame= 0;
}
p->reference= 0;
p->reference= 3; //for error concealment
if(avctx->get_buffer(avctx, p) < 0){
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
@ -2038,6 +2041,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
*picture= *p;
*data_size = sizeof(AVFrame);
FFSWAP(AVFrame, f->picture, f->last_picture);
return buf_size;
}