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Rockbox mail archiveSubject: Re: two patches: proper WAV file handling + APEv2&id3v1 tags for everyoneRe: two patches: proper WAV file handling + APEv2&id3v1 tags for everyone
From: Frederic Devernay <frederic.devernay_at_m4x.org>
Date: Wed, 27 Jul 2005 16:41:21 +0200 OK, I fixed the WAV patch for bit depths less than 16 (more than 16 is not officially supported by the format). Anything between 2 and 16 bits should work now. Available on http://sourceforge.net/project/rockbox , and I also modified the coupled APEv2/WAV patch. I also had to reduce the buffer size so than even 8kHz mono 8-bits files (telephone quality, used in many places) play correctly. This was tested for various configurations (from 8kHz mono 8-bits to 44.1kHz stereo 16-bits). Fred BlueChip wrote: > Easy enough to make a program to create these files if required. > >> Well, no, I didn't come accross this part of the specs. >> Actually, less than 8 bits is unsigned, more than 9 bits is unsigned. >> Does anyody have 8 bits (or less) and 9 to 15 bits WAV files around so >> that I can test this? >> >> Ronald Teune a écrit : >> >>> Hi, >>> did you test the WAV handling for 8 bit files? >>> http://www.borg.com/~jglatt/tech/wave.htm (I came across this while >>> looking for how to write my own wave files) >>> This page has an interesting story of wave-files and how they came into >>> existence. >>> Quote: "Furthermore, there are lots of inconsistencies, for example how >>> 8-bit data is unsigned, but 16-bit data is signed." >>> If you do have covered this (I read through your patch, but could not >>> find it - could be my coding skills), or if the dsp chip has covered >>> this, then.. ah well, the wave file story is still interesting. :-) >>> Ronald >> >> >> _______________________________________________ >> http://cool.haxx.se/mailman/listinfo/rockbox > > > > _______________________________________________ > http://cool.haxx.se/mailman/listinfo/rockbox > _______________________________________________ http://cool.haxx.se/mailman/listinfo/rockbox Received on 2005-07-27 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |