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

1 files changed, 34 insertions, 3 deletions

diff --git a/lib/rbcodec/codecs/libopus/opus_private.h b/lib/rbcodec/codecs/libopus/opus_private.h
index 52482bc18c..9d8210b5f0 100644
--- a/lib/rbcodec/codecs/libopus/opus_private.h
+++ b/lib/rbcodec/codecs/libopus/opus_private.h
@@ -31,15 +31,29 @@
 
 #include "arch.h"
 #include "opus.h"
+#include "celt.h"
 
 struct OpusRepacketizer {
    unsigned char toc;
    int nb_frames;
    const unsigned char *frames[48];
-   short len[48];
+   opus_int16 len[48];
    int framesize;
 };
 
+typedef struct ChannelLayout {
+   int nb_channels;
+   int nb_streams;
+   int nb_coupled_streams;
+   unsigned char mapping[256];
+} ChannelLayout;
+
+int validate_layout(const ChannelLayout *layout);
+int get_left_channel(const ChannelLayout *layout, int stream_id, int prev);
+int get_right_channel(const ChannelLayout *layout, int stream_id, int prev);
+int get_mono_channel(const ChannelLayout *layout, int stream_id, int prev);
+
+
 
 #define MODE_SILK_ONLY          1000
 #define MODE_HYBRID             1001
@@ -68,16 +82,33 @@ struct OpusRepacketizer {
 #define OPUS_SET_FORCE_MODE_REQUEST    11002
 #define OPUS_SET_FORCE_MODE(x) OPUS_SET_FORCE_MODE_REQUEST, __opus_check_int(x)
 
+typedef void (*downmix_func)(const void *, float *, int, int, int);
+void downmix_float(const void *_x, float *sub, int subframe, int offset, int C);
+void downmix_int(const void *_x, float *sub, int subframe, int offset, int C);
+
+int optimize_framesize(const opus_val16 *x, int len, int C, opus_int32 Fs,
+                int bitrate, opus_val16 tonality, opus_val32 *mem, int buffering,
+                downmix_func downmix);
 
 int encode_size(int size, unsigned char *data);
 
+opus_int32 frame_size_select(opus_int32 frame_size, int variable_duration, opus_int32 Fs);
+
+opus_int32 opus_encode_native(OpusEncoder *st, const opus_val16 *pcm, int frame_size,
+      unsigned char *data, opus_int32 out_data_bytes, int lsb_depth
+#ifndef FIXED_POINT
+                , AnalysisInfo *analysis_info
+#endif
+      );
+
 int opus_decode_native(OpusDecoder *st, const unsigned char *data, opus_int32 len,
-      opus_val16 *pcm, int frame_size, int decode_fec, int self_delimited, int *packet_offset);
+      opus_val16 *pcm, int frame_size, int decode_fec, int self_delimited,
+      int *packet_offset, int soft_clip);
 
 /* Make sure everything's aligned to sizeof(void *) bytes */
 static inline int align(int i)
 {
-    return (i+sizeof(void *)-1)&-((int)sizeof(void *));
+    return (i+(int)sizeof(void *)-1)&-(int)sizeof(void *);
 }
 
 opus_int32 opus_repacketizer_out_range_impl(OpusRepacketizer *rp, int begin, int end, unsigned char *data, opus_int32 maxlen, int self_delimited);