6 commits

Author	SHA1	Message	Date
Nils Wallménius	f636aa07df	opus: put frequently used mdct buffer on the real stack which is in iram ... Saves about 30MHz on h300 (cf) and 1.5MHz on c200 (pp) decoding a 64kbps test file. Stack usage is still below 70%. Change-Id: Ib13df9011adb4eef4bb91a52e5a32741c8bf8988	2012-09-26 11:54:03 +02:00
Nils Wallménius	425725edb0	opus: improve cf MULT16_32_Q15 by giving the compiler more freedom ... saves about 3MHz when decoding a 64kbps test file Change-Id: I10f47173ccb78e60e364662220d1db2f78dd5fdd	2012-09-26 11:21:25 +02:00
Nils Wallménius	5f60590e80	opus: put some const tables and structs in iram ... Speeds up decoding of a 64kbps test file by 20MHz on h300 (cf) and 1MHz on c200 (pp) Change-Id: Ia2adc0a3ad86abce8f948062eb53a8ac14c2cdf2	2012-09-25 17:19:05 +02:00
Nils Wallménius	afc6b3f021	opus: asm MULT16_32_Q15 for arm and cf ... Speeds up decoding of a 64kbps opus test file by 34MHz on h300 (cf), 24MHz on c200 (pp) and 13MHz on fuzev1 (amsv1) Change-Id: I0dce6b3bfe6c81d0a722dfebb13891b9a428c6ba	2012-09-25 11:40:59 +02:00
Nils Wallménius	f498142143	opus: #if 0 out some unused code ... Change-Id: I16fa9b439f8da5b9b8a4f17040487b9535078ec5	2012-09-24 15:20:21 +02:00
Frederik M J Vestre	1b8e3801b2	Initial opus codec support ... Synchronised with opus repo on github (https://github.com/freqmod/rockbox-opus) Status: * Seeking ported from speex, but fails on some cases (e.g. seek to granule 0) * ReplayGain parsing needs to be reworked, we do vorbis-style replaygain now. http://wiki.xiph.org/OggOpus#Comment_Header explicitly forbids these in favour of R128_TRACK_GAIN tag. * No optimisation yet, source files still nearly identical to opus upstream * Multi-stream opus files may not be parsed correctly Change-Id: Ia66f1027dc1d288083e3c57b2816700078376f9a Reviewed-on: http://gerrit.rockbox.org/300 Reviewed-by: Bertrik Sikken <bertrik@sikken.nl> Tested-by: Bertrik Sikken <bertrik@sikken.nl>	2012-09-20 20:47:44 +02:00