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Only read ID3v1 tag if ID3v2 isn't present or is empty.

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This prevents the demuxer from exporting multiple semantically identical but
differently named tags.

Patch by Anton Khirnov, wyskas gmail

Originally committed as revision 20175 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Anton Khirnov 2009-10-05 21:36:56 +00:00 committed by Carl Eugen Hoyos
parent 9a9964c50e
commit 7fd5aeb3e5
1 changed files with 2 additions and 1 deletions
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3
libavformat/mp3.c
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@ -142,8 +142,9 @@ static int mp3_read_header(AVFormatContext *s,
st->need_parsing = AVSTREAM_PARSE_FULL;
st->start_time = 0;
ff_id3v1_read(s);
ff_id3v2_read(s);
if (!av_metadata_get(s->metadata, "", NULL, AV_METADATA_IGNORE_SUFFIX))
ff_id3v1_read(s);
off = url_ftell(s->pb);
if (mp3_parse_vbr_tags(s, st, off) < 0)