Updating Opus to a pre-release of 1.1
This CL updates Opus to a pre-release of the coming Opus 1.1 version. The code is extracted from http://git.xiph.org/?p=opus.git, commit aee4d8057632ea0cfc1d55d88acf8466b47b7b4b from October 1st 2013.
This version includes both algorithmic and platform optimizations, as well an important fix for a denorm problem when the input goes silent after active audio. The problem causes high CPU usage.
Review URL: https://codereview.chromium.org/28553003
git-svn-id: svn://svn.chromium.org/chrome/trunk/deps/third_party/opus@230378 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/silk/resampler_structs.h b/silk/resampler_structs.h
index 4c28bd0..9e9457d 100644
--- a/silk/resampler_structs.h
+++ b/silk/resampler_structs.h
@@ -8,11 +8,11 @@
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
-- Neither the name of Internet Society, IETF or IETF Trust, nor the
+- Neither the name of Internet Society, IETF or IETF Trust, nor the
names of specific contributors, may be used to endorse or promote
products derived from this software without specific prior written
permission.
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
@@ -37,7 +37,10 @@
typedef struct _silk_resampler_state_struct{
opus_int32 sIIR[ SILK_RESAMPLER_MAX_IIR_ORDER ]; /* this must be the first element of this struct */
- opus_int32 sFIR[ SILK_RESAMPLER_MAX_FIR_ORDER ];
+ union{
+ opus_int32 i32[ SILK_RESAMPLER_MAX_FIR_ORDER ];
+ opus_int16 i16[ SILK_RESAMPLER_MAX_FIR_ORDER ];
+ } sFIR;
opus_int16 delayBuf[ 48 ];
opus_int resampler_function;
opus_int batchSize;