[FFmpeg-trac] #10230(undetermined:new): [Feature request] Dolby Surround/Pro Logic/II decoder

FFmpeg trac at avcodec.org
Fri Mar 3 06:19:50 EET 2023

#10230: [Feature request] Dolby Surround/Pro Logic/II decoder
             Reporter:               |                     Type:
  audiopreservationist               |  enhancement
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  dolby,       |               Blocked By:
  request, dolby pro logic ii,       |
  decoder                            |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
 I believe ffmpeg can encode DPLII, but not decode it. There are ''a lot''
 of old matrix'd movie soundtracks that have never been released in proper
 multichannel format, and modern AVRs don't support this technology. It
 would therefore be highly beneficial if ffmpeg could decode them, to
 ensure they remain playable forever.

 I don't know much about coding, but I found this thread on DPLII, which
 may be helpful for implementing the decoder:
Ticket URL: <https://trac.ffmpeg.org/ticket/10230>
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