On 01/06/2016 10:41 AM, wm4 wrote:
On Wed, 6 Jan 2016 04:33:16 +0100
Mats Peterson <matsp888-at-yahoo....@ffmpeg.org> wrote:
At least in this case, MPlayer seems to look at the codec tag rather
than the codec ID in order to determine the codec. Therefore, the
'fourcc' variable needs to be set to 'SVQ3' as well, which is later
copied to st->codec->codec_tag in matroskadec.c.
You should fix mplayer instead. FFmpeg API users are not supposed to
use fourcc fields to identify codecs. The fourcc variable in
matroskadec.c is copied to AVCodecContext.codec_tag, which is not
necessarily a fourcc (depends on the CODEC_ID; most time it's unused),
and the svq3 decoder in libavcodec doesn't read it.
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:) In any case, the fourcc should be SVQ3 and not SMI, regardless of
what MPlayer is doing.
Mats
--
Mats Peterson
http://matsp888.no-ip.org/~mats/
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