Evgeny
4fde0b0325
- Add lib/libopus/ (opus v1.6.1 embedded source: CELT 18 .c, SILK 77 .c, SILK float 28 .c, OPUS core 14 .c) - Add lib/opus_codec.h/.c (wrapper: encoder, decoder, raw PCM int16) - Add tests/test_opus_codec.c (7 tests: silence, sine, compression, PLC, null, defaults, multi-frame) - chatgui: AudioRecorder (miniaudio capture, 48kHz mono) - chatgui: VoiceEncoder (PCM→Opus file with custom container) - chatgui: VoicePlayer (Opus→PCM playback via SoundManager) - chatgui: PTT button in InputBar, voice message send/receive in MessageList - chatgui: AudioDeviceSettingsPage (device selection, persisted in ui_state) - chatgui: MessageDelegate voice message rendering (play button + duration) - Update autotools: configure.ac, Makefile.am, src/Makefile.am, tests/Makefile.am - Update CMake: chatgui CMakeLists.txt, libutun CMakeLists.txt (link libopus_internal.a)
99 lines
3.8 KiB
C
99 lines
3.8 KiB
C
/* Copyright (c) 2007-2008 CSIRO
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Copyright (c) 2007-2009 Xiph.Org Foundation
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Written by Jean-Marc Valin */
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/**
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@file vq.h
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@brief Vector quantisation of the residual
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*/
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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 COPYRIGHT OWNER
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OR 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 VQ_H
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#define VQ_H
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#include "entenc.h"
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#include "entdec.h"
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#include "modes.h"
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#if (defined(OPUS_X86_MAY_HAVE_SSE2) && !defined(FIXED_POINT))
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#include "x86/vq_sse.h"
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#endif
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#if defined(FIXED_POINT)
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opus_val32 celt_inner_prod_norm(const celt_norm *x, const celt_norm *y, int len, int arch);
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opus_val32 celt_inner_prod_norm_shift(const celt_norm *x, const celt_norm *y, int len, int arch);
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void norm_scaleup(celt_norm *X, int N, int shift);
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void norm_scaledown(celt_norm *X, int N, int shift);
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#else
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#define celt_inner_prod_norm celt_inner_prod
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#define celt_inner_prod_norm_shift celt_inner_prod
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#define norm_scaleup(X, N, shift)
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#define norm_scaledown(X, N, shift)
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#endif
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void exp_rotation(celt_norm *X, int len, int dir, int stride, int K, int spread);
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opus_val16 op_pvq_search_c(celt_norm *X, int *iy, int K, int N, int arch);
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#if !defined(OVERRIDE_OP_PVQ_SEARCH)
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#define op_pvq_search(x, iy, K, N, arch) \
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(op_pvq_search_c(x, iy, K, N, arch))
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#endif
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/** Algebraic pulse-vector quantiser. The signal x is replaced by the sum of
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* the pitch and a combination of pulses such that its norm is still equal
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* to 1. This is the function that will typically require the most CPU.
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* @param X Residual signal to quantise/encode (returns quantised version)
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* @param N Number of samples to encode
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* @param K Number of pulses to use
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* @param enc Entropy encoder state
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* @ret A mask indicating which blocks in the band received pulses
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*/
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unsigned alg_quant(celt_norm *X, int N, int K, int spread, int B, ec_enc *enc,
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opus_val32 gain, int resynth
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ARG_QEXT(ec_enc *ext_enc) ARG_QEXT(int extra_bits), int arch);
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/** Algebraic pulse decoder
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* @param X Decoded normalised spectrum (returned)
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* @param N Number of samples to decode
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* @param K Number of pulses to use
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* @param dec Entropy decoder state
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* @ret A mask indicating which blocks in the band received pulses
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*/
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unsigned alg_unquant(celt_norm *X, int N, int K, int spread, int B,
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ec_dec *dec, opus_val32 gain
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ARG_QEXT(ec_enc *ext_dec) ARG_QEXT(int extra_bits));
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void renormalise_vector(celt_norm *X, int N, opus_val32 gain, int arch);
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opus_int32 stereo_itheta(const celt_norm *X, const celt_norm *Y, int stereo, int N, int arch);
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unsigned cubic_quant(celt_norm *X, int N, int K, int B, ec_enc *enc, opus_val32 gain, int resynth);
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unsigned cubic_unquant(celt_norm *X, int N, int K, int B, ec_dec *dec, opus_val32 gain);
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#endif /* VQ_H */
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