[FFmpeg-trac] #7905(avformat:new): ISO 639-2 Code "frm" Support

FFmpeg trac at avcodec.org
Fri May 17 17:46:53 EEST 2019


#7905: ISO 639-2 Code "frm" Support
-------------------------------------+------------------------------------
             Reporter:  jeanhackman  |                    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            |
-------------------------------------+------------------------------------

Comment (by jeanhackman):

 However, I was just successful in creating an MPEG-TS container with
 MPEG-2 video and AAC audio including the "frm" audio language descriptor.
 I think this will suffice for the testing I am performing. I'm assuming
 passing "frm" audio language descriptor is either a limitation of the
 MPEG-4 container ".mov" or a limitation within ffmpeg currently.


 {{{
 ffmpeg -i test_pattern.mov \
 -i french_5.1_audio/5.1_pcm_fra.aiff \
 -i stereo_pcm_fra_dvs_audio.aiff \
 -vcodec mpeg2video \
 -map 0:v \
 -acodec aac \
 -map 1:a -metadata:s:a:0 language=fra \
 -map 2:a -metadata:s:a:1 language=frm \
 audio_map_test_files/test_pattern_fra51_fraDVS.ts
 }}}


 {{{
 mediainfo audio_map_test_files/test_pattern_fra51_fraDVS.ts
 ...
 Audio #2
 ID                                       : 258 (0x102)
 Menu ID                                  : 1 (0x1)
 Format                                   : AAC LC
 Format/Info                              : Advanced Audio Codec Low
 Complexity
 Format version                           : Version 4
 Muxing mode                              : ADTS
 Codec ID                                 : 15-2
 Duration                                 : 1 s 857 ms
 Bit rate mode                            : Variable
 Channel(s)                               : 2 channels
 Channel layout                           : L R
 Sampling rate                            : 22.05 kHz
 Frame rate                               : 21.533 FPS (1024 SPF)
 Compression mode                         : Lossy
 Delay relative to video                  : -46 ms
 Language                                 : frm
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/7905#comment:4>
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