[FFmpeg-trac] #8349(avcodec:reopened): Dolby AC-4 Support

FFmpeg trac at avcodec.org
Mon Dec 18 21:52:57 EET 2023


#8349: Dolby AC-4 Support
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             Reporter:  Nomis101     |                    Owner:  (none)
                 Type:  enhancement  |                   Status:  reopened
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  ac4          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Carlton):

 I have a github repo based on an ffmpeg building script that combines the
 patches from the post above and the 6.1 release that can build a static
 FFmpeg executable with the AC4 decode. I've used this to stream from my
 HDHR an ATSC 3.0 channel to mediamtx and convert the audio to AAC and
 watched on my phone with no issues with audio.  The repo is below:

 [https://github.com/funnymanva/ffmpeg-with-ac4]

 If you want to do a quick test I have a container image built, repo
 address below, with all libraries in the script enabled available and the
 AC4 patch. This is from my private gitlab repo so use sparingly just for
 testing, please. Only supports vaapi hardware encoding.

 registry.home.oriley.net/apps/ffmpeg:v6.1
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Ticket URL: <https://trac.ffmpeg.org/ticket/8349#comment:84>
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