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Sync to upstream libopus

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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
This commit is contained in:
Nils Wallménius 2014-01-19 16:31:59 +01:00
parent e557951c94
commit 9b7ec42403
46 changed files with 1608 additions and 1051 deletions
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8
lib/rbcodec/codecs/libopus/silk/shell_coder.c
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@ -60,8 +60,8 @@ static OPUS_INLINE void encode_split(
#endif
static OPUS_INLINE void decode_split(
opus_int *p_child1, /* O pulse amplitude of first child subframe */
opus_int *p_child2, /* O pulse amplitude of second child subframe */
opus_int16 *p_child1, /* O pulse amplitude of first child subframe */
opus_int16 *p_child2, /* O pulse amplitude of second child subframe */
ec_dec *psRangeDec, /* I/O Compressor data structure */
const opus_int p, /* I pulse amplitude of current subframe */
const opus_uint8 *shell_table /* I table of shell cdfs */
@ -121,12 +121,12 @@ void silk_shell_encoder(
/* Shell decoder, operates on one shell code frame of 16 pulses */
void silk_shell_decoder(
opus_int *pulses0, /* O data: nonnegative pulse amplitudes */
opus_int16 *pulses0, /* O data: nonnegative pulse amplitudes */
ec_dec *psRangeDec, /* I/O Compressor data structure */
const opus_int pulses4 /* I number of pulses per pulse-subframe */
)
{
opus_int pulses3[ 2 ], pulses2[ 4 ], pulses1[ 8 ];
opus_int16 pulses3[ 2 ], pulses2[ 4 ], pulses1[ 8 ];
/* this function operates on one shell code frame of 16 pulses */
silk_assert( SHELL_CODEC_FRAME_LENGTH == 16 );