[FFmpeg-devel] Matroska subtitle decoding: CODEC_ID_TEXT vs. CODEC_ID_SRT

Martin Lambers marlam at marlam.de
Sun Apr 24 14:54:09 CEST 2011

Hi all,

According to this site
<http://matroska.org/technical/specs/codecid/index.html>, "S_TEXT/UTF8"
are SRT subtitles. Yet in libavformat/matroska.c, there are two entries
for "S_TEXT/UTF8":

{"S_TEXT/UTF8"      , CODEC_ID_SRT},

This has the result that SRT subtitles are handled with CODEC_ID_TEXT
during decoding since this is the first entry found. Therefore, they do
not get translated to ASS as would happen with SRT subtitles from other

Is there a reason to keep this behaviour? Can the first entry be removed?

Best regards,

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