[FFmpeg-trac] #11625(undetermined:closed): FFmpeg is unable to output .iamf files

[FFmpeg]

#11625: FFmpeg is unable to output .iamf files
-------------------------------------+-------------------------------------
             Reporter:  gamer191     |                    Owner:  (none)
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:  invalid
             Keywords:  iamf         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by James):

 * resolution:   => invalid
 * status:  new => closed

Comment:

 The iamf format is very complex, where individual streams are grouped into
 iamf elements, and it needs the user to specify information about what's
 being muxed. Check https://ffmpeg.org/ffmpeg.html for the stream_group
 section.

 For a simple copy, it gives the following example:


 {{{
 To copy the two stream groups (Audio Element and Mix Presentation) from an
 input IAMF file with four streams into an mp4 output

 ffmpeg -i input.iamf -c:a copy -stream_group map=0=0:st=0:st=1:st=2:st=3
 -stream_group map=0=1:stg=0
 -streamid 0:0 -streamid 1:1 -streamid 2:2 -streamid 3:3 output.mp4
 }}}

 In your file there are 16 streams, one per ambisonic channel, so it would
 look like the above but with the missing streams included.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11625#comment:1>
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