diff options
Diffstat (limited to 'libavcodec/zerocodec.c')
| -rw-r--r-- | libavcodec/zerocodec.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libavcodec/zerocodec.c b/libavcodec/zerocodec.c index f54abb1..cba3198 100644 --- a/libavcodec/zerocodec.c +++ b/libavcodec/zerocodec.c @@ -49,6 +49,9 @@ static int zerocodec_decode_frame(AVCodecContext *avctx, void *data, av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n"); return AVERROR_INVALIDDATA; } + + prev += (avctx->height - 1) * prev_pic->linesize[0]; + pic->key_frame = 0; pic->pict_type = AV_PICTURE_TYPE_P; } @@ -67,7 +70,7 @@ static int zerocodec_decode_frame(AVCodecContext *avctx, void *data, zstream->next_in = avpkt->data; zstream->avail_in = avpkt->size; - dst = pic->data[0]; + dst = pic->data[0] + (avctx->height - 1) * pic->linesize[0]; /** * ZeroCodec has very simple interframe compression. If a value @@ -90,8 +93,8 @@ static int zerocodec_decode_frame(AVCodecContext *avctx, void *data, for (j = 0; j < avctx->width << 1; j++) dst[j] += prev[j] & -!dst[j]; - prev += prev_pic->linesize[0]; - dst += pic->linesize[0]; + prev -= prev_pic->linesize[0]; + dst -= pic->linesize[0]; } /* Release the previous buffer if need be */ |
