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avformat/avisynth: read _SARNum/_SARDen from frame properties 

Initialized to 1:1, but if the script sets these properties, it
will be set to those instead (0:0 disables it, apparently).

Signed-off-by: Stephen Hutchinson <qyot27@gmail.com>
This commit is contained in:
Stephen Hutchinson 2022-08-28 14:08:55 -04:00
parent 49a1de26ec
commit c49beead19
1 changed files with 8 additions and 0 deletions
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8
libavformat/avisynth.c
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@ -251,6 +251,8 @@ static int avisynth_create_stream_video(AVFormatContext *s, AVStream *st)
AVS_VideoFrame *frame;
int error;
int planar = 0; // 0: packed, 1: YUV, 2: Y8, 3: Planar RGB, 4: YUVA, 5: Planar RGBA
int sar_num = 1;
int sar_den = 1;
st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
st->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;
@ -728,6 +730,12 @@ static int avisynth_create_stream_video(AVFormatContext *s, AVStream *st)
st->codecpar->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
}
}
/* Sample aspect ratio */
sar_num = avs_library.avs_prop_get_int(avs->env, avsmap, "_SARNum", 0, &error);
sar_den = avs_library.avs_prop_get_int(avs->env, avsmap, "_SARDen", 0, &error);
st->sample_aspect_ratio = (AVRational){ sar_num, sar_den };
avs_library.avs_release_video_frame(frame);
} else {
st->codecpar->field_order = AV_FIELD_UNKNOWN;