generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ZeroCodec: Flip output

Browse Source 
The initial testing of the VFW binary codec was flawed,
likely due to an AviSynth bug.

Re-testing using VirtualDub and various professional editing
applications has revealed it should have been flipped.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
This commit is contained in:
Carl Eugen Hoyos
2012-12-09 10:24:16 +01:00
committed by Derek Buitenhuis
parent ccb59c106a
commit 2ddf7c88d1
3 changed files with 45 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
libavcodec/zerocodec.c
View File

@@ -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 */