Hi Tuukka,
I am glad someone picks up this task, Thank you!
I am not an expert in details of sound source, but here are some hints from
Bill:
https://bugs.launchpad.net/mixxx/+bug/998907
For my feeling the solution could be a well sized Buffer around the current
play position.
But doing a seek outside this buffer will result in a performance
regression. If this is really required the user is free to transcode his
audio files in a better suitable format.
I think the benefit in playing almost any file format is worth to possible
have trouble with those corner cases. In any case, the behaviour should be
well documented.
Kind regards,
Daniel
2012/8/30 Tuukka Pasanen <tuukka.pasa...@ilmi.fi>
> Hello,
> I've doing a little bit coding with mixxx and ffmpeg lately (works with
> newest ffmpeg). I get ffmpeg soundsource in shape (compiling and almost
> working sound) but because I don't really yet understand all the inner
> things in Mixxx I ask these guestions:
>
> I understand that soundsource I asked some amount of 16 bit PCM data but
> ffmpeg doesn't fit in. Decoded data
> doesn't go as smooth as Mixxx wants. If anybody know what should I do.
> Just drop fewer amount of data or do as
> in mp3 little bit hackery.. that I didn't quite get yet ;).
>
> Where to add more formats: like wma and aac that works with ffmpeg just
> fine? Documents say that method that is supposed
> to tell what format are supported is evil.
>
> Is this even wanted hacking? I've though it would be good to have ffmpeg
> in soundsource because of formats it supports.
> I can't yet see if all the seeking things are fixed. I've been also
> wondering if MLT or Gstreamer would be way to go
> in Soundsource because ffmpeg is kinda diffucult to make work but
> Gstreamer is easier (and support all the formats
> that ffmpeg with plugin) same goes to MLT.
>
> Sorry about not having patch but in the current state of code (because
> playing it's not working correct).. if someone wants it i'll send it..
>
> Thanks,
> Tuukka
>
>
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