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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_private.h
parentfb3a437c9dabb4aafe4a3927158161590ed745ab (diff)
Removed all the silk_ prefixes in source file names (not symbols)
Diffstat (limited to 'silk/resampler_private.h')
-rw-r--r--silk/resampler_private.h121
1 files changed, 121 insertions, 0 deletions
diff --git a/silk/resampler_private.h b/silk/resampler_private.h
new file mode 100644
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+++ b/silk/resampler_private.h
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+/***********************************************************************
+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_H
+#define SILK_RESAMPLER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "SigProc_FIX.h"
+#include "resampler_structs.h"
+#include "resampler_rom.h"
+
+/* Number of input samples to process in the inner loop */
+#define RESAMPLER_MAX_BATCH_SIZE_IN 480
+
+/* Description: Hybrid IIR/FIR polyphase implementation of resampling */
+void silk_resampler_private_IIR_FIR(
+ void *SS, /* I/O: Resampler state */
+ opus_int16 out[], /* O: Output signal */
+ const opus_int16 in[], /* I: Input signal */
+ opus_int32 inLen /* I: Number of input samples */
+);
+
+/* Description: Hybrid IIR/FIR polyphase implementation of resampling */
+void silk_resampler_private_down_FIR(
+ void *SS, /* I/O: Resampler state */
+ opus_int16 out[], /* O: Output signal */
+ const opus_int16 in[], /* I: Input signal */
+ opus_int32 inLen /* I: Number of input samples */
+);
+
+/* Copy */
+void silk_resampler_private_copy(
+ void *SS, /* I/O: Resampler state (unused) */
+ opus_int16 out[], /* O: Output signal */
+ const opus_int16 in[], /* I: Input signal */
+ opus_int32 inLen /* I: Number of input samples */
+);
+
+/* Upsample by a factor 2, high quality */
+void silk_resampler_private_up2_HQ_wrapper(
+ void *SS, /* I/O: Resampler state (unused) */
+ opus_int16 *out, /* O: Output signal [ 2 * len ] */
+ const opus_int16 *in, /* I: Input signal [ len ] */
+ opus_int32 len /* I: Number of input samples */
+);
+
+/* Upsample by a factor 2, high quality */
+void silk_resampler_private_up2_HQ(
+ opus_int32 *S, /* I/O: Resampler state [ 6 ] */
+ opus_int16 *out, /* O: Output signal [ 2 * len ] */
+ const opus_int16 *in, /* I: Input signal [ len ] */
+ opus_int32 len /* I: Number of input samples */
+);
+
+/* Upsample 4x, low quality */
+void silk_resampler_private_up4(
+ opus_int32 *S, /* I/O: State vector [ 2 ] */
+ opus_int16 *out, /* O: Output signal [ 4 * len ] */
+ const opus_int16 *in, /* I: Input signal [ len ] */
+ opus_int32 len /* I: Number of input samples */
+);
+
+/* Downsample 4x, low quality */
+void silk_resampler_private_down4(
+ opus_int32 *S, /* I/O: State vector [ 2 ] */
+ opus_int16 *out, /* O: Output signal [ floor(len/2) ] */
+ const opus_int16 *in, /* I: Input signal [ len ] */
+ opus_int32 inLen /* I: Number of input samples */
+);
+
+/* Second order AR filter */
+void silk_resampler_private_AR2(
+ opus_int32 S[], /* I/O: State vector [ 2 ] */
+ opus_int32 out_Q8[], /* O: Output signal */
+ const opus_int16 in[], /* I: Input signal */
+ const opus_int16 A_Q14[], /* I: AR coefficients, Q14 */
+ opus_int32 len /* I: Signal length */
+);
+
+/* Fourth order ARMA filter */
+void silk_resampler_private_ARMA4(
+ opus_int32 S[], /* I/O: State vector [ 4 ] */
+ opus_int16 out[], /* O: Output signal */
+ const opus_int16 in[], /* I: Input signal */
+ const opus_int16 Coef[], /* I: ARMA coefficients [ 7 ] */
+ opus_int32 len /* I: Signal length */
+);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* SILK_RESAMPLER_H*/
+