[FFmpeg-trac] #11224(undetermined:new): -filter_complex "[0:a] ..." does not skip disabled tracks

FFmpeg trac at avcodec.org
Thu Oct 3 01:38:50 EEST 2024


#11224: -filter_complex "[0:a] ..." does not skip disabled tracks
-------------------------------------+-------------------------------------
             Reporter:  markshw2222  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 IPhone 16 introduced spatial audio. They use multiple audio tracks to
 carry audio. One track is enabled the other is disabled. When specifying
 filter_complex "[0:a]..." the first audio track is selected, even it is
 disabled
 In this case, the disable track also have no audio codec set, so
 conversion fails

 ./ffmpeg -y -i ~/Downloads/spatial_audio_test_swapped_short.MOV -map 0:v
 -c:v copy  -filter_complex "[0:a] asetpts=PTS-STARTPTS [output_audio]"
 -map '[output_audio]' -c:a aac ~/multiaudio.mp4

 [aist#0:1/none @ 0x122609b40] Decoding requested, but no decoder found
 for: none
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11224>
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