[FFmpeg-trac] #4441(avfilter:closed): support HDCD

FFmpeg trac at avcodec.org
Sun Jul 10 05:33:06 CEST 2016

#4441: support HDCD
             Reporter:  calestyo     |                    Owner:
                 Type:  enhancement  |                   Status:  closed
             Priority:  wish         |                Component:  avfilter
              Version:  git-master   |               Resolution:  fixed
             Keywords:  hdcd         |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |

Comment (by calestyo):


 Nice to see :-)
 There's still the string "More information about HDCD-encoded audio CDs",
 would it perhaps make sense to drop the reference to audio CDs there as

 +1 one to your documentation, especially the note about wav output
 defaulting to pcm_s16le.

 Could one possibly print a warning to the console, that when HDCD filter
 is enabled *and* HDCD content is actually detected/decoded but the output
 would be truncated (regardless of the format, so e.g. also in the case of
 manually selected 8bit FLAC)?
 That would be perhaps (maybe even a better?) alternative to my proposal
 above to automatically default to some higher bitrate in case HDCD was

 Last but not least, what do the developers think about automatically
 trying to detect HDCD and enabling the filter if found?

Ticket URL: <https://trac.ffmpeg.org/ticket/4441#comment:30>
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