The Tor Browser: media/libopus/silk/resampler

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /***********************************************************************

     2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.

     3 Redistribution and use in source and binary forms, with or without

     4 modification, are permitted provided that the following conditions

     5 are met:

     6 - Redistributions of source code must retain the above copyright notice,

     7 this list of conditions and the following disclaimer.

     8 - Redistributions in binary form must reproduce the above copyright

     9 notice, this list of conditions and the following disclaimer in the

    10 documentation and/or other materials provided with the distribution.

    11 - Neither the name of Internet Society, IETF or IETF Trust, nor the

    12 names of specific contributors, may be used to endorse or promote

    13 products derived from this software without specific prior written

    14 permission.

    15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

    19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

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    22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    25 POSSIBILITY OF SUCH DAMAGE.

    26 ***********************************************************************/

    28 #ifndef SILK_RESAMPLER_STRUCTS_H

    29 #define SILK_RESAMPLER_STRUCTS_H

    31 #ifdef __cplusplus

    32 extern "C" {

    33 #endif

    35 #define SILK_RESAMPLER_MAX_FIR_ORDER                 36

    36 #define SILK_RESAMPLER_MAX_IIR_ORDER                 6

    38 typedef struct _silk_resampler_state_struct{

    39     opus_int32       sIIR[ SILK_RESAMPLER_MAX_IIR_ORDER ]; /* this must be the first element of this struct */

    40     union{

    41         opus_int32   i32[ SILK_RESAMPLER_MAX_FIR_ORDER ];

    42         opus_int16   i16[ SILK_RESAMPLER_MAX_FIR_ORDER ];

    43     }                sFIR;

    44     opus_int16       delayBuf[ 48 ];

    45     opus_int         resampler_function;

    46     opus_int         batchSize;

    47     opus_int32       invRatio_Q16;

    48     opus_int         FIR_Order;

    49     opus_int         FIR_Fracs;

    50     opus_int         Fs_in_kHz;

    51     opus_int         Fs_out_kHz;

    52     opus_int         inputDelay;

    53     const opus_int16 *Coefs;

    54 } silk_resampler_state_struct;

    56 #ifdef __cplusplus

    57 }

    58 #endif

    59 #endif /* SILK_RESAMPLER_STRUCTS_H */

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