Pixelpanic / winff

Automatically exported from code.google.com/p/winff
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Presets containing libfaac should provide a audio rate. #53

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago
ffmpeg spits out the following warning when the audio rate of the source is
too low for the requested bit rate for libfaac to code:

[libfaac @ 0x82487f0]libfaac doesn't support this output format!
Error while opening codec for output stream #0.0 - maybe incorrect
parameters such as bit_rate, rate, width or height

This is solved when the preset contains a -ar option. I found by trial and
error that the following are LOWER limits:
@192kb: 32000 Hz
@128kb: 21334 Hz
@ 96kb: 16000 Hz
@ 48kb:  8000 Hz

For reasonable results (by looking at existing presets) I propose:
@192kb: 48000 Hz
@160kb: 44100 Hz
@128kb: 32000 Hz
@ 96kb: 24000 Hz

Original issue reported on code.google.com by poipodec...@hotmail.com on 1 Sep 2009 at 10:12

GoogleCodeExporter commented 8 years ago
i only found a few. If it wasn't less than 100kb bitrate i used 4800. For less 
than 
100kb/s i used 32000.

Original comment by bgg...@gmail.com on 13 Jan 2010 at 4:48