[Mplayer-users] dirty ideas to speedup libMP3

[Felix Buenemann]

Hello Christoph,

Monday, July 23, 2001, 9:34:35 AM, you wrote:

> Hi,

> I found that on slow CPUs (and I mean slooooooow like mine), MP3 Audio
> eats a lot of CPU time (up to 50%, it can't skip & often no MMX and/or 3dnow) I 
> am looking for a way to speed this up. 

> Would it be possible to 
> 1) preprocess audio data (uncompressed) to get a lower bitrate? like half or so?
> 2) process audio bitstream only partially, e.g. drop the highest frequencies,
> s.th. quality gets lower, but decoding faster? 
there's another thing I forgot, both FHG and WinAMP codec support
downmixing to mono, which reduces cpu usage fpr stereo mp3 sound.

> gruel

-- 
Best regards,
 Felix                            mailto:atmosfear at users.sourceforge.net



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