161 lines
5.7 KiB
C
161 lines
5.7 KiB
C
/* Copyright (c) 2010 Xiph.Org Foundation
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Written by Jean-Marc Valin */
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/*
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef OPUS_H
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#define OPUS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(__GNUC__) && defined(CELT_BUILD)
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#define EXPORT __attribute__ ((visibility ("default")))
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#elif defined(WIN32)
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#define EXPORT __declspec(dllexport)
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#else
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#define EXPORT
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#endif
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#define __check_int(x) (((void)((x) == (int)0)), (int)(x))
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#define __check_int_ptr(ptr) ((ptr) + ((ptr) - (int*)(ptr)))
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/* Error codes */
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/** No error */
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#define OPUS_OK 0
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/** An (or more) invalid argument (e.g. out of range) */
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#define OPUS_BAD_ARG -1
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/** The mode struct passed is invalid */
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#define OPUS_INVALID_MODE -2
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/** An internal error was detected */
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#define OPUS_INTERNAL_ERROR -3
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/** The data passed (e.g. compressed data to decoder) is corrupted */
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#define OPUS_CORRUPTED_DATA -4
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/** Invalid/unsupported request number */
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#define OPUS_UNIMPLEMENTED -5
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/** An encoder or decoder structure is invalid or already freed */
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#define OPUS_INVALID_STATE -6
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/** Memory allocation has failed */
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#define OPUS_ALLOC_FAIL -7
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#define OPUS_TEST_RANGE_CODER_STATE 1
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#define OPUS_MODE_AUTO 2000
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#define OPUS_MODE_VOICE 2001
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#define OPUS_MODE_AUDIO 2002
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#define MODE_SILK_ONLY 1000
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#define MODE_HYBRID 1001
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#define MODE_CELT_ONLY 1002
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#define BANDWIDTH_AUTO 1100
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#define BANDWIDTH_NARROWBAND 1101
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#define BANDWIDTH_MEDIUMBAND 1102
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#define BANDWIDTH_WIDEBAND 1103
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#define BANDWIDTH_SUPERWIDEBAND 1104
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#define BANDWIDTH_FULLBAND 1105
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#define OPUS_SET_MODE_REQUEST 0
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#define OPUS_SET_MODE(x) OPUS_SET_MODE_REQUEST, __check_int(x)
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#define OPUS_GET_MODE_REQUEST 1
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#define OPUS_GET_MODE(x) OPUS_GET_MODE_REQUEST, __check_int_ptr(x)
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#define OPUS_SET_BITRATE_REQUEST 2
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#define OPUS_SET_BITRATE(x) OPUS_SET_BITRATE_REQUEST, __check_int(x)
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#define OPUS_GET_BITRATE_REQUEST 3
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#define OPUS_GET_BITRATE(x) OPUS_GET_BITRATE_REQUEST, __check_int_ptr(x)
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#define OPUS_SET_VBR_FLAG_REQUEST 6
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#define OPUS_SET_VBR_FLAG(x) OPUS_SET_VBR_FLAG_REQUEST, __check_int(x)
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#define OPUS_GET_VBR_FLAG_REQUEST 7
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#define OPUS_GET_VBR_FLAG(x) OPUS_GET_VBR_FLAG_REQUEST, __check_int_ptr(x)
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#define OPUS_SET_BANDWIDTH_REQUEST 8
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#define OPUS_SET_BANDWIDTH(x) OPUS_SET_BANDWIDTH_REQUEST, __check_int(x)
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#define OPUS_GET_BANDWIDTH_REQUEST 9
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#define OPUS_GET_BANDWIDTH(x) OPUS_GET_BANDWIDTH_REQUEST, __check_int_ptr(x)
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#define OPUS_SET_COMPLEXITY_REQUEST 10
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#define OPUS_SET_COMPLEXITY(x) OPUS_SET_COMPLEXITY_REQUEST, __check_int(x)
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#define OPUS_GET_COMPLEXITY_REQUEST 11
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#define OPUS_GET_COMPLEXITY(x) OPUS_GET_COMPLEXITY_REQUEST, __check_int_ptr(x)
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#define OPUS_SET_INBAND_FEC_FLAG_REQUEST 12
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#define OPUS_SET_INBAND_FEC_FLAG(x) OPUS_SET_INBAND_FEC_FLAG_REQUEST, __check_int(x)
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#define OPUS_GET_INBAND_FEC_FLAG_REQUEST 13
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#define OPUS_GET_INBAND_FEC_FLAG(x) OPUS_GET_INBAND_FEC_FLAG_REQUEST, __check_int_ptr(x)
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#define OPUS_SET_PACKET_LOSS_PERC_REQUEST 14
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#define OPUS_SET_PACKET_LOSS_PERC(x) OPUS_SET_PACKET_LOSS_PERC_REQUEST, __check_int(x)
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#define OPUS_GET_PACKET_LOSS_PERC_REQUEST 15
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#define OPUS_GET_PACKET_LOSS_PERC(x) OPUS_GET_PACKET_LOSS_PERC_REQUEST, __check_int_ptr(x)
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#define OPUS_SET_DTX_FLAG_REQUEST 16
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#define OPUS_SET_DTX_FLAG(x) OPUS_SET_DTX_FLAG_REQUEST, __check_int(x)
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#define OPUS_GET_DTX_FLAG_REQUEST 17
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#define OPUS_GET_DTX_FLAG(x) OPUS_GET_DTX_FLAG_REQUEST, __check_int_ptr(x)
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#define OPUS_SET_VOICE_RATIO_REQUEST 18
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#define OPUS_SET_VOICE_RATIO(x) OPUS_SET_VOICE_RATIO_REQUEST, __check_int(x)
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#define OPUS_GET_VOICE_RATIO_REQUEST 19
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#define OPUS_GET_VOICE_RATIO(x) OPUS_GET_VOICE_RATIO_REQUEST, __check_int_ptr(x)
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typedef struct OpusEncoder OpusEncoder;
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typedef struct OpusDecoder OpusDecoder;
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OpusEncoder *opus_encoder_create(int Fs, int channels);
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/* returns length of data payload (in bytes) */
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int opus_encode(OpusEncoder *st, const short *pcm, int frame_size,
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unsigned char *data, int max_data_bytes);
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void opus_encoder_destroy(OpusEncoder *st);
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int opus_encoder_ctl(OpusEncoder *st, int request, ...);
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OpusDecoder *opus_decoder_create(int Fs, int channels);
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/* returns (CELT) error code */
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int opus_decode(OpusDecoder *st, const unsigned char *data, int len,
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short *pcm, int frame_size, int decode_fec);
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int opus_decoder_ctl(OpusDecoder *st, int request, ...);
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void opus_decoder_destroy(OpusDecoder *st);
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#if OPUS_TEST_RANGE_CODER_STATE
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int opus_encoder_get_final_range(OpusEncoder *st);
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int opus_decoder_get_final_range(OpusDecoder *st);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* OPUS_H */
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