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authorJean-Marc Valin <jmvalin@jmvalin.ca>2011-09-16 12:16:53 +0400
committerJean-Marc Valin <jmvalin@jmvalin.ca>2011-09-16 12:16:53 +0400
commit1c2f5633d101c08b5ef8095a8682d3d52cbd952d (patch)
tree66f80e67f075db5fa5233759a89f475d8bedade2 /silk/resampler_structs.h
parentfb3a437c9dabb4aafe4a3927158161590ed745ab (diff)
Removed all the silk_ prefixes in source file names (not symbols)
Diffstat (limited to 'silk/resampler_structs.h')
-rw-r--r--silk/resampler_structs.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/silk/resampler_structs.h b/silk/resampler_structs.h
new file mode 100644
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+++ b/silk/resampler_structs.h
@@ -0,0 +1,70 @@
+/***********************************************************************
+Copyright (c) 2006-2011, Skype Limited. All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, (subject to the limitations in the disclaimer below)
+are permitted provided that the following conditions are met:
+- Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+- 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 Skype Limited, nor the names of specific
+contributors, may be used to endorse or promote products derived from
+this software without specific prior written permission.
+NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
+BY THIS LICENSE. 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 LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+***********************************************************************/
+
+#ifndef SILK_RESAMPLER_STRUCTS_H
+#define SILK_RESAMPLER_STRUCTS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Flag to enable support for input/output sampling rates above 48 kHz. Turn off for embedded devices */
+#define RESAMPLER_SUPPORT_ABOVE_48KHZ 1
+
+#define SILK_RESAMPLER_MAX_FIR_ORDER 16
+#define SILK_RESAMPLER_MAX_IIR_ORDER 6
+
+
+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 ];
+ opus_int32 sDown2[ 2 ];
+ void (*resampler_function)( void *, opus_int16 *, const opus_int16 *, opus_int32 );
+ void (*up2_function)( opus_int32 *, opus_int16 *, const opus_int16 *, opus_int32 );
+ opus_int32 batchSize;
+ opus_int32 invRatio_Q16;
+ opus_int32 FIR_Fracs;
+ opus_int32 input2x;
+ const opus_int16 *Coefs;
+#if RESAMPLER_SUPPORT_ABOVE_48KHZ
+ opus_int32 sDownPre[ 2 ];
+ opus_int32 sUpPost[ 2 ];
+ void (*down_pre_function)( opus_int32 *, opus_int16 *, const opus_int16 *, opus_int32 );
+ void (*up_post_function)( opus_int32 *, opus_int16 *, const opus_int16 *, opus_int32 );
+ opus_int32 batchSizePrePost;
+ opus_int32 ratio_Q16;
+ opus_int32 nPreDownsamplers;
+ opus_int32 nPostUpsamplers;
+#endif
+ opus_int32 magic_number;
+} silk_resampler_state_struct;
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* SILK_RESAMPLER_STRUCTS_H */
+