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avformat/matroskaenc: don't write DisplayUnit with value Unknown on WebM files

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Value 4 (Unknown) is for the time being part of the Matroska spec but not
supported by WebM

Addresses ticket #6176

(cherry picked from commit 1ad60e4e70)
This commit is contained in:
James Almer 2017-02-21 21:14:17 -03:00
parent 5546294f63
commit 36fff6c754
1 changed files with 1 additions and 1 deletions
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2
libavformat/matroskaenc.c
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@ -1202,7 +1202,7 @@ static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv,
} else if (display_width_div != 1 || display_height_div != 1) {
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , par->width / display_width_div);
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, par->height / display_height_div);
} else
} else if (mkv->mode != MODE_WEBM)
put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYUNIT, MATROSKA_VIDEO_DISPLAYUNIT_UNKNOWN);
if (par->codec_id == AV_CODEC_ID_RAWVIDEO) {