The Tor Browser / file comparison
comparison: media/libopus/silk/resampler_private.h
media/libopus/silk/resampler_private.h
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
equal
deleted
inserted
replaced
| -1:000000000000 | 0:5a23b9c485d6 |
|---|---|
| 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 | |
| 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 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 ***********************************************************************/ | |
| 27 | |
| 28 #ifndef SILK_RESAMPLER_PRIVATE_H | |
| 29 #define SILK_RESAMPLER_PRIVATE_H | |
| 30 | |
| 31 #ifdef __cplusplus | |
| 32 extern "C" { | |
| 33 #endif | |
| 34 | |
| 35 #include "SigProc_FIX.h" | |
| 36 #include "resampler_structs.h" | |
| 37 #include "resampler_rom.h" | |
| 38 | |
| 39 /* Number of input samples to process in the inner loop */ | |
| 40 #define RESAMPLER_MAX_BATCH_SIZE_MS 10 | |
| 41 #define RESAMPLER_MAX_FS_KHZ 48 | |
| 42 #define RESAMPLER_MAX_BATCH_SIZE_IN ( RESAMPLER_MAX_BATCH_SIZE_MS * RESAMPLER_MAX_FS_KHZ ) | |
| 43 | |
| 44 /* Description: Hybrid IIR/FIR polyphase implementation of resampling */ | |
| 45 void silk_resampler_private_IIR_FIR( | |
| 46 void *SS, /* I/O Resampler state */ | |
| 47 opus_int16 out[], /* O Output signal */ | |
| 48 const opus_int16 in[], /* I Input signal */ | |
| 49 opus_int32 inLen /* I Number of input samples */ | |
| 50 ); | |
| 51 | |
| 52 /* Description: Hybrid IIR/FIR polyphase implementation of resampling */ | |
| 53 void silk_resampler_private_down_FIR( | |
| 54 void *SS, /* I/O Resampler state */ | |
| 55 opus_int16 out[], /* O Output signal */ | |
| 56 const opus_int16 in[], /* I Input signal */ | |
| 57 opus_int32 inLen /* I Number of input samples */ | |
| 58 ); | |
| 59 | |
| 60 /* Upsample by a factor 2, high quality */ | |
| 61 void silk_resampler_private_up2_HQ_wrapper( | |
| 62 void *SS, /* I/O Resampler state (unused) */ | |
| 63 opus_int16 *out, /* O Output signal [ 2 * len ] */ | |
| 64 const opus_int16 *in, /* I Input signal [ len ] */ | |
| 65 opus_int32 len /* I Number of input samples */ | |
| 66 ); | |
| 67 | |
| 68 /* Upsample by a factor 2, high quality */ | |
| 69 void silk_resampler_private_up2_HQ( | |
| 70 opus_int32 *S, /* I/O Resampler state [ 6 ] */ | |
| 71 opus_int16 *out, /* O Output signal [ 2 * len ] */ | |
| 72 const opus_int16 *in, /* I Input signal [ len ] */ | |
| 73 opus_int32 len /* I Number of input samples */ | |
| 74 ); | |
| 75 | |
| 76 /* Second order AR filter */ | |
| 77 void silk_resampler_private_AR2( | |
| 78 opus_int32 S[], /* I/O State vector [ 2 ] */ | |
| 79 opus_int32 out_Q8[], /* O Output signal */ | |
| 80 const opus_int16 in[], /* I Input signal */ | |
| 81 const opus_int16 A_Q14[], /* I AR coefficients, Q14 */ | |
| 82 opus_int32 len /* I Signal length */ | |
| 83 ); | |
| 84 | |
| 85 #ifdef __cplusplus | |
| 86 } | |
| 87 #endif | |
| 88 #endif /* SILK_RESAMPLER_PRIVATE_H */ |
