videolan/ffmpeg
1
Fork 0
mirror of https://git.videolan.org/git/ffmpeg.git synced 2024-07-22 04:04:14 +02:00
Code Releases Activity

avcodec/mpeg12dec: Fix chroma location

Browse Source 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-22 15:08:58 +02:00
parent ebb08f3fe4
commit d09321b68e
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
libavcodec/mpeg12dec.c
View File

@ -1141,10 +1141,6 @@ static av_cold int mpeg_decode_init(AVCodecContext *avctx)
s->repeat_field = 0;
s->mpeg_enc_ctx.codec_id = avctx->codec->id;
avctx->color_range = AVCOL_RANGE_MPEG;
if (avctx->codec->id == AV_CODEC_ID_MPEG1VIDEO)
avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
else
avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
return 0;
}
@ -1366,6 +1362,8 @@ static int mpeg_decode_postinit(AVCodecContext *avctx)
// MPEG-1 fps
avctx->framerate = ff_mpeg12_frame_rate_tab[s->frame_rate_index];
avctx->ticks_per_frame = 1;
avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
} else { // MPEG-2
// MPEG-2 fps
av_reduce(&s->avctx->framerate.num,
@ -1374,6 +1372,12 @@ static int mpeg_decode_postinit(AVCodecContext *avctx)
ff_mpeg12_frame_rate_tab[s->frame_rate_index].den * s1->frame_rate_ext.den,
1 << 30);
avctx->ticks_per_frame = 2;
switch (s->chroma_format) {
case 1: avctx->chroma_sample_location = AVCHROMA_LOC_LEFT; break;
case 2:
case 3: avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT; break;
}
} // MPEG-2
avctx->pix_fmt = mpeg_get_pixelformat(avctx);