[FFmpeg-trac] #7376(avformat:new): isom little-endian audio detected as big-endian

[FFmpeg]

#7376: isom little-endian audio detected as big-endian
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  important  |              Component:  avformat
                Version:  git-       |               Keywords:  mov
  master                             |  regression handbrake
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  1
-------------------------------------+-------------------------------------
 https://forum.handbrake.fr/viewtopic.php?f=5&t=38129
 !HandBrake forum user arichards1 provided a sample file that produces
 broken audio with FFmpeg, regression since
 152e9a43f2435e6f2cdaf50ad0605e951c774386
 {{{
 $ ffmpeg -i Blackmagic\ HyperDeck\ Studio\ Mini\[0013\]_cut.mp4
 ffmpeg version N-91666-g70d2bab Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 6.4.0 (GCC)
   configuration: --enable-gpl --enable-gnutls --enable-libxml2
   libavutil      56. 19.100 / 56. 19.100
   libavcodec     58. 24.101 / 58. 24.101
   libavformat    58. 17.103 / 58. 17.103
   libavdevice    58.  4.101 / 58.  4.101
   libavfilter     7. 26.100 /  7. 26.100
   libswscale      5.  2.100 /  5.  2.100
   libswresample   3.  2.100 /  3.  2.100
   libpostproc    55.  2.100 / 55.  2.100
 Guessed Channel Layout for Input Stream #0.1 : stereo
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Blackmagic HyperDeck Studio
 Mini[0013]_cut.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 1
     compatible_brands: iso4avc1isom
     creation_time   : 2018-07-15T20:18:01.000000Z
   Duration: 00:04:36.48, start: 0.000000, bitrate: 74 kb/s
     Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
 bt709, progressive), 1920x1080, 19999 kb/s, SAR 1:1 DAR 16:9, 50 fps, 50
 tbr, 50 tbn, 100 tbc (default)
     Metadata:
       creation_time   : 2018-07-15T20:18:01.000000Z
       handler_name    : ?Apple Video Media Handler
       encoder         : H264/AVC
       timecode        : 00:00:00:00
     Stream #0:1(eng): Audio: pcm_s24be (in24 / 0x34326E69), 48000 Hz,
 stereo, s32 (24 bit), 2304 kb/s (default)
     Metadata:
       creation_time   : 2018-07-15T20:18:01.000000Z
       handler_name    : ?Apple Sound Media Handler
       timecode        : 00:00:00:00
     Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
     Metadata:
       creation_time   : 2018-07-15T20:18:01.000000Z
       handler_name    : ?Time Code Media Handler
       timecode        : 00:00:00:00
 At least one output file must be specified
 }}}
 Audio is actually little-endia `pcm_s24le`.
 The `stsd` atom has version 1, contains a `wave` and an `enda` atom but
 they are not found because the 16 specific version 1 bytes are not read
 for brand `isom` and the `stsd` atom is not consumed correctly.
 Works fine with every (?) other demuxer, I couldn't find
 `testclip_wrong_version_1_audio_stsd.mp4`.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7376>
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