Commit graph

9 commits

Author SHA1 Message Date
Nils Wallménius
9b7ec42403 Sync to upstream libopus
Sync to commit bb4b6885a139644cf3ac14e7deda9f633ec2d93c

This brings in a bunch of optimizations to decode speed
and memory usage. Allocations are switched from using
the pseudostack to using the real stack. Enabled hacks
to reduce stack usage.

This should fix crashes on sansa clip, although some
files will not play due to failing allocations in the
codec buffer.

Speeds up decoding of the following test files:

                 H300 (cf)   C200 (arm7tdmi)  ipod classic (arm9e)
16 kbps (silk)   14.28 MHz   4.00 MHz         2.61 MHz
64 kbps (celt)   4.09 MHz    8.08 MHz         6.24 MHz
128 kbps (celt)  1.93 MHz    8.83 MHz         6.53 MHz

Change-Id: I851733a8a5824b61feb363a173091bc7e6629b58
2014-07-13 11:12:40 +02:00
Nils Wallménius
580b307fd7 Sync opus codec to upstream git
Sync opus codec to upstream commit
02fed471a4568852d6618e041c4f2af0d7730ee2 (August 30 2013)

This brings in a lot of optimizations but also makes the diff
between our codec and the upstream much smaller as most of our
optimizations have been upstreamed or supeceded.

Speedups across the board for CELT mode files:

        64kbps      128kbps
H300    9.82MHz     15.48MHz
c200	4.86MHz     9.63MHz
fuze v1 10.32MHz    15.92MHz

For the silk mode test file (16kbps) arm targets get a speedup
of about 2MHz while the H300 is 7.8MHz slower, likely because it's
now using the pseudostack more rather than the real stack which
is in iram. Patches to get around that are upcomming.

Change-Id: Ifecf963e461c51ac42e09dac1e91bc4bc3b12fa3
2013-08-31 08:30:51 +02:00
Nils Wallménius
aa55bc29f0 opus: don't rely on stride being 1<<shift
Change-Id: I2d64fb20b2526d912eb665df0df4e87459676a92
2012-10-16 21:03:22 +02:00
Andree Buschmann
091619b4a5 opus: use two pointers for mdct pre and post rotation
avoids complicated index calculations in the loops.
saves 0.3MHz decoding a 64kbps test file on h300 (cf) and
0.2MHz on c200 (pp)

Change-Id: I1918912d9a4502f89980c6bb270ec2ef10a07010
Signed-off-by: Nils Wallménius <nils@rockbox.org>
2012-10-16 18:07:52 +02:00
Andree Buschmann
0ae8d16643 opus: replace copy loops with calls to memcpy
speeds up decoding of a 64kbps test file by 0.5Hz on h300 (cf)
0.9MHz on c200 (pp) and 0.2MHz on fuzev1 (amsv1)

Change-Id: Ib537c2393fa6dca0b61e4e9f80eef5e688c2c2bd
Signed-off-by: Nils Wallménius <nils@rockbox.org>
2012-10-07 12:34:54 +02:00
Andree Buschmann
d7799aaf33 opus: allocate mdct f2 buffer in iram
Speeds up decoding of 64kbps test file by 6.3MHz on h300 (cf)
and 1.2MHz on c200 (pp).

Signed-off-by: Nils Wallménius <nils@rockbox.org>

Change-Id: I08c2c332153abcbef9447c81986777fd2fcc73fe
2012-10-01 22:07:44 +02:00
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
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