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annotate src/opus-1.3/silk/control.h @ 69:7aeed7906520

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Add Opus sources and macOS builds
author Chris Cannam
date Wed, 23 Jan 2019 13:48:08 +0000
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Chris@69 1 /***********************************************************************
Chris@69 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
Chris@69 3 Redistribution and use in source and binary forms, with or without
Chris@69 4 modification, are permitted provided that the following conditions
Chris@69 5 are met:
Chris@69 6 - Redistributions of source code must retain the above copyright notice,
Chris@69 7 this list of conditions and the following disclaimer.
Chris@69 8 - Redistributions in binary form must reproduce the above copyright
Chris@69 9 notice, this list of conditions and the following disclaimer in the
Chris@69 10 documentation and/or other materials provided with the distribution.
Chris@69 11 - Neither the name of Internet Society, IETF or IETF Trust, nor the
Chris@69 12 names of specific contributors, may be used to endorse or promote
Chris@69 13 products derived from this software without specific prior written
Chris@69 14 permission.
Chris@69 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Chris@69 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Chris@69 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
Chris@69 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
Chris@69 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
Chris@69 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
Chris@69 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
Chris@69 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
Chris@69 23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
Chris@69 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
Chris@69 25 POSSIBILITY OF SUCH DAMAGE.
Chris@69 26 ***********************************************************************/
Chris@69 27
Chris@69 28 #ifndef SILK_CONTROL_H
Chris@69 29 #define SILK_CONTROL_H
Chris@69 30
Chris@69 31 #include "typedef.h"
Chris@69 32
Chris@69 33 #ifdef __cplusplus
Chris@69 34 extern "C"
Chris@69 35 {
Chris@69 36 #endif
Chris@69 37
Chris@69 38 /* Decoder API flags */
Chris@69 39 #define FLAG_DECODE_NORMAL 0
Chris@69 40 #define FLAG_PACKET_LOST 1
Chris@69 41 #define FLAG_DECODE_LBRR 2
Chris@69 42
Chris@69 43 /***********************************************/
Chris@69 44 /* Structure for controlling encoder operation */
Chris@69 45 /***********************************************/
Chris@69 46 typedef struct {
Chris@69 47 /* I: Number of channels; 1/2 */
Chris@69 48 opus_int32 nChannelsAPI;
Chris@69 49
Chris@69 50 /* I: Number of channels; 1/2 */
Chris@69 51 opus_int32 nChannelsInternal;
Chris@69 52
Chris@69 53 /* I: Input signal sampling rate in Hertz; 8000/12000/16000/24000/32000/44100/48000 */
Chris@69 54 opus_int32 API_sampleRate;
Chris@69 55
Chris@69 56 /* I: Maximum internal sampling rate in Hertz; 8000/12000/16000 */
Chris@69 57 opus_int32 maxInternalSampleRate;
Chris@69 58
Chris@69 59 /* I: Minimum internal sampling rate in Hertz; 8000/12000/16000 */
Chris@69 60 opus_int32 minInternalSampleRate;
Chris@69 61
Chris@69 62 /* I: Soft request for internal sampling rate in Hertz; 8000/12000/16000 */
Chris@69 63 opus_int32 desiredInternalSampleRate;
Chris@69 64
Chris@69 65 /* I: Number of samples per packet in milliseconds; 10/20/40/60 */
Chris@69 66 opus_int payloadSize_ms;
Chris@69 67
Chris@69 68 /* I: Bitrate during active speech in bits/second; internally limited */
Chris@69 69 opus_int32 bitRate;
Chris@69 70
Chris@69 71 /* I: Uplink packet loss in percent (0-100) */
Chris@69 72 opus_int packetLossPercentage;
Chris@69 73
Chris@69 74 /* I: Complexity mode; 0 is lowest, 10 is highest complexity */
Chris@69 75 opus_int complexity;
Chris@69 76
Chris@69 77 /* I: Flag to enable in-band Forward Error Correction (FEC); 0/1 */
Chris@69 78 opus_int useInBandFEC;
Chris@69 79
Chris@69 80 /* I: Flag to actually code in-band Forward Error Correction (FEC) in the current packet; 0/1 */
Chris@69 81 opus_int LBRR_coded;
Chris@69 82
Chris@69 83 /* I: Flag to enable discontinuous transmission (DTX); 0/1 */
Chris@69 84 opus_int useDTX;
Chris@69 85
Chris@69 86 /* I: Flag to use constant bitrate */
Chris@69 87 opus_int useCBR;
Chris@69 88
Chris@69 89 /* I: Maximum number of bits allowed for the frame */
Chris@69 90 opus_int maxBits;
Chris@69 91
Chris@69 92 /* I: Causes a smooth downmix to mono */
Chris@69 93 opus_int toMono;
Chris@69 94
Chris@69 95 /* I: Opus encoder is allowing us to switch bandwidth */
Chris@69 96 opus_int opusCanSwitch;
Chris@69 97
Chris@69 98 /* I: Make frames as independent as possible (but still use LPC) */
Chris@69 99 opus_int reducedDependency;
Chris@69 100
Chris@69 101 /* O: Internal sampling rate used, in Hertz; 8000/12000/16000 */
Chris@69 102 opus_int32 internalSampleRate;
Chris@69 103
Chris@69 104 /* O: Flag that bandwidth switching is allowed (because low voice activity) */
Chris@69 105 opus_int allowBandwidthSwitch;
Chris@69 106
Chris@69 107 /* O: Flag that SILK runs in WB mode without variable LP filter (use for switching between WB/SWB/FB) */
Chris@69 108 opus_int inWBmodeWithoutVariableLP;
Chris@69 109
Chris@69 110 /* O: Stereo width */
Chris@69 111 opus_int stereoWidth_Q14;
Chris@69 112
Chris@69 113 /* O: Tells the Opus encoder we're ready to switch */
Chris@69 114 opus_int switchReady;
Chris@69 115
Chris@69 116 /* O: SILK Signal type */
Chris@69 117 opus_int signalType;
Chris@69 118
Chris@69 119 /* O: SILK offset (dithering) */
Chris@69 120 opus_int offset;
Chris@69 121 } silk_EncControlStruct;
Chris@69 122
Chris@69 123 /**************************************************************************/
Chris@69 124 /* Structure for controlling decoder operation and reading decoder status */
Chris@69 125 /**************************************************************************/
Chris@69 126 typedef struct {
Chris@69 127 /* I: Number of channels; 1/2 */
Chris@69 128 opus_int32 nChannelsAPI;
Chris@69 129
Chris@69 130 /* I: Number of channels; 1/2 */
Chris@69 131 opus_int32 nChannelsInternal;
Chris@69 132
Chris@69 133 /* I: Output signal sampling rate in Hertz; 8000/12000/16000/24000/32000/44100/48000 */
Chris@69 134 opus_int32 API_sampleRate;
Chris@69 135
Chris@69 136 /* I: Internal sampling rate used, in Hertz; 8000/12000/16000 */
Chris@69 137 opus_int32 internalSampleRate;
Chris@69 138
Chris@69 139 /* I: Number of samples per packet in milliseconds; 10/20/40/60 */
Chris@69 140 opus_int payloadSize_ms;
Chris@69 141
Chris@69 142 /* O: Pitch lag of previous frame (0 if unvoiced), measured in samples at 48 kHz */
Chris@69 143 opus_int prevPitchLag;
Chris@69 144 } silk_DecControlStruct;
Chris@69 145
Chris@69 146 #ifdef __cplusplus
Chris@69 147 }
Chris@69 148 #endif
Chris@69 149
Chris@69 150 #endif