[FFmpeg-trac] #7256(undetermined:new): Mux TrueHD and Atmos to mp4 container

[FFmpeg]

#7256: Mux TrueHD and Atmos to mp4 container
-------------------------------------+-------------------------------------
             Reporter:  johnesz      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 In preparation for tvOS12 which will support Dolby Atmos, I was updating
 my ffmpeg based tools to mux TrueHD/Atmos tracks to mp4 containers. After
 short testing I found that they are not supported in mp4.

 For the source I used a sample from
 [https://thedigitaltheater.com/index.php/dolby-trailers/], this one to be
 precise: [https://we.tl/O0BfDADZbu]

 How to reproduce:
 {{{
 % ffmpeg -i Dolby_Bit_Harvest_Lossless-thedigitaltheater.mkv -y -stats
 -map 0:0 -map 0:1 -c copy -f mp4 truehd.mp4
 ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers
   built with Apple LLVM version 9.1.0 (clang-902.0.39.1)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0 --enable-shared
 --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-
 avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl
 --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl
 --enable-videotoolbox --disable-lzma
   libavutil      56. 14.100 / 56. 14.100
   libavcodec     58. 18.100 / 58. 18.100
   libavformat    58. 12.100 / 58. 12.100
   libavdevice    58.  3.100 / 58.  3.100
   libavfilter     7. 16.100 /  7. 16.100
   libavresample   4.  0.  0 /  4.  0.  0
   libswscale      5.  1.100 /  5.  1.100
   libswresample   3.  1.100 /  3.  1.100
   libpostproc    55.  1.100 / 55.  1.100
 Input #0, matroska,webm, from '/Users/jkis/Downloads
 /Dolby_Bit_Harvest_Lossless-thedigitaltheater.mkv':
   Metadata:
     encoder         : libmakemkv v1.9.5 (1.3.0/1.4.1) win(x64-release)
     creation_time   : 2015-08-29T18:56:26.000000Z
   Duration: 00:00:11.01, start: 0.000000, bitrate: 12615 kb/s
     Stream #0:0(eng): Video: h264 (High), yuv420p(progressive), 1920x1080,
 SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc
     Stream #0:1(eng): Audio: truehd, 48000 Hz, 7.1, s32 (24 bit) (default)
     Metadata:
       title           : Surround 7.1
 [mp4 @ 0x7fcc22800400] Could not find tag for codec truehd in stream #1,
 codec not currently supported in container
 Could not write header for output file #0 (incorrect codec parameters ?):
 Invalid argument
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
     Last message repeated 1 times
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7256>
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