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movenc: Don't store a nonzero creation time if nothing was set by the caller

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If the creation time is stored in the file as a zero, the
mov demuxer skips exporting the creation time. Currently,
files muxed without a creation time get demuxed with a
Jan 1st 1970 creation timestamp.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2012-01-09 18:35:01 +02:00
parent 353a2d2164
commit a78dbada55
1 changed files with 2 additions and 1 deletions
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3
libavformat/movenc.c
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@ -2317,7 +2317,8 @@ static int mov_write_header(AVFormatContext *s)
#endif
if (t = av_dict_get(s->metadata, "creation_time", NULL, 0))
mov->time = ff_iso8601_to_unix_time(t->value);
mov->time += 0x7C25B080; //1970 based -> 1904 based
if (mov->time)
mov->time += 0x7C25B080; // 1970 based -> 1904 based
if (mov->chapter_track)
mov_create_chapter_track(s, mov->chapter_track);