[FFmpeg-trac] #1457(avcodec:new): Add support for libshine-fxp fixed point math MP3 encoder

[FFmpeg]

#1457: Add support for libshine-fxp fixed point math MP3 encoder
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             Reporter:  patters      |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by patters):

 Replying to [comment:6 cehoyos]:
 > Could you compare shine's performance against FFmpeg's mp2 encoder
 (possibly without #define USE_FLOATS)?

 Sorry for the delay, I've been very busy with other things. I compiled
 using that modification, and used some rock music to better determine
 quality (A track by Garbage - Queer):
 ''lame -b 320 -f'' took 7m41s
 ''shineenc -b 320'' took 57s
 ''ffmpeg -acodec mp2 -ab 320'' took 12s

 To my non-audiophile ears the shine encoded file was pretty
 indistinguishable from the lame encoded one. The mp2 file did sound
 noticeably worse on the high frequency parts (cymbals), though it was
 fairly slight.

 So yes, FFmpeg's current MP2 encoder is very fast but it isn't suitable
 for the task that myself and others would like to use FFmpeg for -
 transcoding music to MP3 in realtime for streaming to mobile phones and
 other devices which don't support MP2.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1457#comment:11>
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