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authorJean-Marc Valin <jmvalin@jmvalin.ca>2011-09-16 01:16:53 -0700
committerJean-Marc Valin <jmvalin@jmvalin.ca>2011-09-16 01:16:53 -0700
commit1c2f5633d101c08b5ef8095a8682d3d52cbd952d (patch)
tree66f80e67f075db5fa5233759a89f475d8bedade2 /silk/resampler_rom.h
parentfb3a437c9dabb4aafe4a3927158161590ed745ab (diff)
downloadopus-1c2f5633d101c08b5ef8095a8682d3d52cbd952d.tar.gz
Removed all the silk_ prefixes in source file names (not symbols)
Diffstat (limited to 'silk/resampler_rom.h')
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1 files changed, 79 insertions, 0 deletions
diff --git a/silk/resampler_rom.h b/silk/resampler_rom.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_FIX_RESAMPLER_ROM_H_
+#define _SILK_FIX_RESAMPLER_ROM_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "typedef.h"
+#include "resampler_structs.h"
+
+#define RESAMPLER_DOWN_ORDER_FIR 16
+#define RESAMPLER_ORDER_FIR_144 6
+
+
+/* Tables for 2x downsampler. Values above 32767 intentionally wrap to a negative value. */
+extern const opus_int16 silk_resampler_down2_0;
+extern const opus_int16 silk_resampler_down2_1;
+
+/* Tables for 2x upsampler, low quality. Values above 32767 intentionally wrap to a negative value. */
+extern const opus_int16 silk_resampler_up2_lq_0;
+extern const opus_int16 silk_resampler_up2_lq_1;
+
+/* Tables for 2x upsampler, high quality. Values above 32767 intentionally wrap to a negative value. */
+extern const opus_int16 silk_resampler_up2_hq_0[ 2 ];
+extern const opus_int16 silk_resampler_up2_hq_1[ 2 ];
+extern const opus_int16 silk_resampler_up2_hq_notch[ 4 ];
+
+/* Tables with IIR and FIR coefficients for fractional downsamplers */
+extern const opus_int16 silk_Resampler_3_4_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
+extern const opus_int16 silk_Resampler_2_3_COEFS[ 2 + 2 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
+extern const opus_int16 silk_Resampler_1_2_COEFS[ 2 + RESAMPLER_DOWN_ORDER_FIR / 2 ];
+extern const opus_int16 silk_Resampler_3_8_COEFS[ 2 + 3 * RESAMPLER_DOWN_ORDER_FIR / 2 ];
+extern const opus_int16 silk_Resampler_1_3_COEFS[ 2 + RESAMPLER_DOWN_ORDER_FIR / 2 ];
+extern const opus_int16 silk_Resampler_2_3_COEFS_LQ[ 2 + 2 * 2 ];
+extern const opus_int16 silk_Resampler_1_3_COEFS_LQ[ 2 + 3 ];
+
+/* Tables with coefficients for 4th order ARMA filter */
+extern const opus_int16 silk_Resampler_320_441_ARMA4_COEFS[ 7 ];
+extern const opus_int16 silk_Resampler_240_441_ARMA4_COEFS[ 7 ];
+extern const opus_int16 silk_Resampler_160_441_ARMA4_COEFS[ 7 ];
+extern const opus_int16 silk_Resampler_120_441_ARMA4_COEFS[ 7 ];
+extern const opus_int16 silk_Resampler_80_441_ARMA4_COEFS[ 7 ];
+
+/* Table with interplation fractions of 1/288 : 2/288 : 287/288 (432 Words) */
+extern const opus_int16 silk_resampler_frac_FIR_144[ 144 ][ RESAMPLER_ORDER_FIR_144 / 2 ];
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SILK_FIX_RESAMPLER_ROM_H_*/