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

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/rbcodec/codecs/libopus/silk/shell_coder.c b/lib/rbcodec/codecs/libopus/silk/shell_coder.c
index 9d6e1bb366..d80dd51f9e 100644
--- a/lib/rbcodec/codecs/libopus/silk/shell_coder.c
+++ b/lib/rbcodec/codecs/libopus/silk/shell_coder.c
@@ -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 );