1 /* Copyright (c) 2007-2008 CSIRO 2 Copyright (c) 2007-2009 Xiph.Org Foundation 3 Copyright (c) 2008 Gregory Maxwell 4 Written by Jean-Marc Valin and Gregory Maxwell */ 5 /** 6 @file celt.h 7 @brief Contains all the functions for encoding and decoding audio 8 */ 9 10 /* 11 Redistribution and use in source and binary forms, with or without 12 modification, are permitted provided that the following conditions 13 are met: 14 15 - Redistributions of source code must retain the above copyright 16 notice, this list of conditions and the following disclaimer. 17 18 - Redistributions in binary form must reproduce the above copyright 19 notice, this list of conditions and the following disclaimer in the 20 documentation and/or other materials provided with the distribution. 21 22 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 25 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 26 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 27 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 28 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 29 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 30 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 31 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 32 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #ifndef CELT_H 36 #define CELT_H 37 38 #include "opus_types.h" 39 #include "opus_defines.h" 40 #include "opus_custom.h" 41 #include "entenc.h" 42 #include "entdec.h" 43 #include "arch.h" 44 45 #ifdef __cplusplus 46 extern "C" { 47 #endif 48 49 #define CELTEncoder OpusCustomEncoder 50 #define CELTDecoder OpusCustomDecoder 51 #define CELTMode OpusCustomMode 52 53 #define _celt_check_mode_ptr_ptr(ptr) ((ptr) + ((ptr) - (const CELTMode**)(ptr))) 54 55 /* Encoder/decoder Requests */ 56 57 #define CELT_SET_PREDICTION_REQUEST 10002 58 /** Controls the use of interframe prediction. 59 0=Independent frames 60 1=Short term interframe prediction allowed 61 2=Long term prediction allowed 62 */ 63 #define CELT_SET_PREDICTION(x) CELT_SET_PREDICTION_REQUEST, __opus_check_int(x) 64 65 #define CELT_SET_INPUT_CLIPPING_REQUEST 10004 66 #define CELT_SET_INPUT_CLIPPING(x) CELT_SET_INPUT_CLIPPING_REQUEST, __opus_check_int(x) 67 68 #define CELT_GET_AND_CLEAR_ERROR_REQUEST 10007 69 #define CELT_GET_AND_CLEAR_ERROR(x) CELT_GET_AND_CLEAR_ERROR_REQUEST, __opus_check_int_ptr(x) 70 71 #define CELT_SET_CHANNELS_REQUEST 10008 72 #define CELT_SET_CHANNELS(x) CELT_SET_CHANNELS_REQUEST, __opus_check_int(x) 73 74 75 /* Internal */ 76 #define CELT_SET_START_BAND_REQUEST 10010 77 #define CELT_SET_START_BAND(x) CELT_SET_START_BAND_REQUEST, __opus_check_int(x) 78 79 #define CELT_SET_END_BAND_REQUEST 10012 80 #define CELT_SET_END_BAND(x) CELT_SET_END_BAND_REQUEST, __opus_check_int(x) 81 82 #define CELT_GET_MODE_REQUEST 10015 83 /** Get the CELTMode used by an encoder or decoder */ 84 #define CELT_GET_MODE(x) CELT_GET_MODE_REQUEST, _celt_check_mode_ptr_ptr(x) 85 86 #define CELT_SET_SIGNALLING_REQUEST 10016 87 #define CELT_SET_SIGNALLING(x) CELT_SET_SIGNALLING_REQUEST, __opus_check_int(x) 88 89 90 91 /* Encoder stuff */ 92 93 int celt_encoder_get_size(int channels); 94 95 int celt_encode_with_ec(OpusCustomEncoder * OPUS_RESTRICT st, const opus_val16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes, ec_enc *enc); 96 97 int celt_encoder_init(CELTEncoder *st, opus_int32 sampling_rate, int channels); 98 99 100 101 /* Decoder stuff */ 102 103 int celt_decoder_get_size(int channels); 104 105 106 int celt_decoder_init(CELTDecoder *st, opus_int32 sampling_rate, int channels); 107 108 int celt_decode_with_ec(OpusCustomDecoder * OPUS_RESTRICT st, const unsigned char *data, int len, opus_val16 * OPUS_RESTRICT pcm, int frame_size, ec_dec *dec); 109 110 #define celt_encoder_ctl opus_custom_encoder_ctl 111 #define celt_decoder_ctl opus_custom_decoder_ctl 112 113 #ifdef __cplusplus 114 } 115 #endif 116 117 #endif /* CELT_H */ 118
