On Sun, May 24, 2015 at 3:54 AM Alessandro Ghedini <[email protected]> wrote:
- Do we really need 2 different MP3 encoders (libmp3lame and libshine)?

libshine is fast but of low quality. libmp3lame is slow but of high quality.

- Given the libmp3lame support, what's the purpose of libtwolame?

libtwolame is for MP2, completely unrelated with libmp3lame. You might
want to compare it with the built-in MP2 encoder, but I believe libtwolame
offers a better quality.

- What is the purpose of the libopenjpeg support given that ffmpeg has its
  own built-in JPEG2000 encoder/decoder?

FFmpeg's own J2K implementation is often buggy, so it is better to just give
users a choice in case one doesn't work.

Timothy


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