[FFmpeg-trac] #3366(avformat:new): Support muxing pcm_s16be to mp4
FFmpeg
trac at avcodec.org
Mon Feb 3 09:12:50 CET 2014
#3366: Support muxing pcm_s16be to mp4
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Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: normal | Component: avformat
Version: git-master | Resolution:
Keywords: mov | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by muken):
MP4 file format itself has no support of 'raw ' and 'twos'.
These identifiers are defined in Motion JPEG 2000 file format (15444-3).
You need add the JP2 Signature Box at the start of file and add 'mjp2'
brand into the File Type Box if muxing them.
By the way, we can mux raw audio into MP4 file format in the near future
beacause an amendment of MPEG-4 Systems (14496-1) which adds
objectTypeIndication (0x0C) and decoderSpecificInfo (RAWAudioConfig) of
raw audio was published recently.
We only need to wait coding4CC, a 4 character code representing the
parameters of the raw data as specified by the MPEG-4 Registration
Authority, to be registered by http://www.mp4ra.org/codecs.html .
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Ticket URL: <https://trac.ffmpeg.org/ticket/3366#comment:2>
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