[FFmpeg-trac] #6568(undetermined:new): Add support for DTS matrixed channel decoding

[FFmpeg]

#6568: Add support for DTS matrixed channel decoding
-------------------------------------+-------------------------------------
             Reporter:  macdavis     |                     Type:
               Status:  new          |  enhancement
            Component:               |                 Priority:  normal
  undetermined                       |                  Version:  git-
             Keywords:  dca          |  master
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
 Summary of the bug:
 The attachments are 2 "6.1 Matrix DTS-HD High Resolution Audio" files. One
 is "ES Phase Shift" enabled, which requires a discrete Center Surround
 channel during encoding. The other is "ES Pre-Mixed" enabled, which
 doesn't require a discrete Center Surround channel during encoding. FFmpeg
 is not able to decode those samples to 6.1 channel.

 How to reproduce:
 HR_6.1_MATRIX_ES_PHASE_SHIFT_3840.dtshd
 {{{
 ffmpeg -i /Volumes/BOOTCAMP/Users/Davis/Downloads/DTS\
 CHECK/HR_6.1_MATRIX_ES_PHASE_SHIFT_3840.dtshd -f null -
 ffmpeg version 3.3.git Copyright (c) 2000-2017 the FFmpeg developers
   built with Apple LLVM version 8.1.0 (clang-802.0.42)
   configuration: --optflags=-Ofast --prefix=/usr/local --extra-
 cflags='-march=haswell -mtune=intel -m64 -minline-all-stringops -fomit-
 frame-pointer -fforce-addr -finline-functions -funit-at-a-time -funroll-
 loops -ffunction-sections -fdata-sections -Ofast -pipe -fomit-frame-
 pointer -ftree-vectorize' --target-os=darwin --arch=x86_64 --cpu=haswell
 --disable-runtime-cpudetect --disable-debug --disable-opencl --disable-
 avdevice --disable-ffplay --disable-ffprobe --disable-postproc --disable-
 ffserver --disable-devices --disable-avresample --disable-indev=qtkit
 --disable-doc --enable-pthreads --enable-version3 --enable-hardcoded-
 tables --enable-gpl --enable-nonfree --enable-libopenh264 --enable-shared
   libavutil      55. 69.100 / 55. 69.100
   libavcodec     57.102.100 / 57.102.100
   libavformat    57. 76.100 / 57. 76.100
   libavfilter     6. 96.100 /  6. 96.100
   libswscale      4.  7.101 /  4.  7.101
   libswresample   2.  8.100 /  2.  8.100
 Input #0, dtshd, from '/Volumes/BOOTCAMP/Users/Davis/Downloads/DTS
 CHECK/HR_6.1_MATRIX_ES_PHASE_SHIFT_3840.dtshd':
   Metadata:
     fileinfo        :
                     :
   Duration: 00:00:04.03, bitrate: 3850 kb/s
     Stream #0:0: Audio: dts (DTS-HD HRA), 48000 Hz, 5.1(side), fltp
 Stream mapping:
   Stream #0:0 -> #0:0 (dts (dca) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 Output #0, null, to 'pipe:':
   Metadata:
     fileinfo        :
                     :
     encoder         : Lavf57.76.100
     Stream #0:0: Audio: pcm_s16le, 48000 Hz, 5.1(side), s16, 4608 kb/s
     Metadata:
       encoder         : Lavc57.102.100 pcm_s16le
 size=N/A time=00:00:04.03 bitrate=N/A speed= 117x
 video:0kB audio:2268kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}

 [[BR]]
 HR_6.1_MATRIX_ES_PRE-MIXED_3840.dtshd
 {{{
 ffmpeg -i /Volumes/BOOTCAMP/Users/Davis/Downloads/DTS\ CHECK/HR_6
 .1_MATRIX_ES_PRE-MIXED_3840.dtshd -f null -
 ffmpeg version 3.3.git Copyright (c) 2000-2017 the FFmpeg developers
   built with Apple LLVM version 8.1.0 (clang-802.0.42)
   configuration: --optflags=-Ofast --prefix=/usr/local --extra-
 cflags='-march=haswell -mtune=intel -m64 -minline-all-stringops -fomit-
 frame-pointer -fforce-addr -finline-functions -funit-at-a-time -funroll-
 loops -ffunction-sections -fdata-sections -Ofast -pipe -fomit-frame-
 pointer -ftree-vectorize' --target-os=darwin --arch=x86_64 --cpu=haswell
 --disable-runtime-cpudetect --disable-debug --disable-opencl --disable-
 avdevice --disable-ffplay --disable-ffprobe --disable-postproc --disable-
 ffserver --disable-devices --disable-avresample --disable-indev=qtkit
 --disable-doc --enable-pthreads --enable-version3 --enable-hardcoded-
 tables --enable-gpl --enable-nonfree --enable-libopenh264 --enable-shared
   libavutil      55. 69.100 / 55. 69.100
   libavcodec     57.102.100 / 57.102.100
   libavformat    57. 76.100 / 57. 76.100
   libavfilter     6. 96.100 /  6. 96.100
   libswscale      4.  7.101 /  4.  7.101
   libswresample   2.  8.100 /  2.  8.100
 Input #0, dtshd, from '/Volumes/BOOTCAMP/Users/Davis/Downloads/DTS
 CHECK/HR_6.1_MATRIX_ES_PRE-MIXED_3840.dtshd':
   Metadata:
     fileinfo        :
                     :
   Duration: 00:00:04.03, bitrate: 3850 kb/s
     Stream #0:0: Audio: dts (DTS-HD HRA), 48000 Hz, 5.1(side), fltp
 Stream mapping:
   Stream #0:0 -> #0:0 (dts (dca) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 Output #0, null, to 'pipe:':
   Metadata:
     fileinfo        :
                     :
     encoder         : Lavf57.76.100
     Stream #0:0: Audio: pcm_s16le, 48000 Hz, 5.1(side), s16, 4608 kb/s
     Metadata:
       encoder         : Lavc57.102.100 pcm_s16le
 size=N/A time=00:00:04.03 bitrate=N/A speed=35.9x
 video:0kB audio:2268kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown}}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6568>
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