[FFmpeg-trac] #4638(avcodec:open): Multithreaded FLAC encoding

FFmpeg trac at avcodec.org
Sat Jan 21 12:27:52 EET 2017

#4638: Multithreaded FLAC encoding
             Reporter:  xtemp09      |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  flac         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
Changes (by mzso):

 * cc: dqeswn@… (added)


 Replying to [comment:2 gjdfgh]:
 > Also, what's the use-case? Do you have to encode dozens of CDs per
 seconds? Won't the output of the decoder be too much for your storage
 speed or network bandwidth to handle?
 > This makes little sense.

 Utilizing all cores, and encoding at ~4-12 times the speed doesn't make
 What strange world you live in, where they want to keep encoding as slow
 as possible?

 I for one transcoded some DTS-HD MA movie streams to FLAC (level 12)
 roughly halving the space it took. And would have been really happy if it
 took a ~fourth of the time on my quad core cpu.

Ticket URL: <https://trac.ffmpeg.org/ticket/4638#comment:9>
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