[Speex-dev] Speex encoded stream in mp4
justin.ruggles at gmail.com
Wed Aug 18 15:15:11 PDT 2010
Weikai Xie wrote:
> Is that possible to store a speex encoded audio track in the
> standard .mp4 container file format? If yes, which tool I can use to
> do that? I found FFMPEG does not include the support of speex codec.
MP4 only supports specific codecs, but you can probably write to MOV,
which is similar, using Microsoft WAVE tags. I believe the tag for
Speex is 0xA109. But even then, very few (if any) programs could
There is a patch on ffmpeg-devel for using FFmpeg to encode Speex via
libspeex. Also, an entry would have to be added for the Speex codec id
in the ff_codec_wav_tags table in libavformat/riff.c in order to write
Hope that helps.
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