1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libopus/src/opus_private.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,129 @@
1.4 +/* Copyright (c) 2012 Xiph.Org Foundation
1.5 + Written by Jean-Marc Valin */
1.6 +/*
1.7 + Redistribution and use in source and binary forms, with or without
1.8 + modification, are permitted provided that the following conditions
1.9 + are met:
1.10 +
1.11 + - Redistributions of source code must retain the above copyright
1.12 + notice, this list of conditions and the following disclaimer.
1.13 +
1.14 + - Redistributions in binary form must reproduce the above copyright
1.15 + notice, this list of conditions and the following disclaimer in the
1.16 + documentation and/or other materials provided with the distribution.
1.17 +
1.18 + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.19 + ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.20 + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.21 + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
1.22 + OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
1.23 + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
1.24 + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
1.25 + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.26 + LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.27 + NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
1.28 + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.29 +*/
1.30 +
1.31 +
1.32 +#ifndef OPUS_PRIVATE_H
1.33 +#define OPUS_PRIVATE_H
1.34 +
1.35 +#include "arch.h"
1.36 +#include "opus.h"
1.37 +#include "celt.h"
1.38 +
1.39 +struct OpusRepacketizer {
1.40 + unsigned char toc;
1.41 + int nb_frames;
1.42 + const unsigned char *frames[48];
1.43 + opus_int16 len[48];
1.44 + int framesize;
1.45 +};
1.46 +
1.47 +typedef struct ChannelLayout {
1.48 + int nb_channels;
1.49 + int nb_streams;
1.50 + int nb_coupled_streams;
1.51 + unsigned char mapping[256];
1.52 +} ChannelLayout;
1.53 +
1.54 +int validate_layout(const ChannelLayout *layout);
1.55 +int get_left_channel(const ChannelLayout *layout, int stream_id, int prev);
1.56 +int get_right_channel(const ChannelLayout *layout, int stream_id, int prev);
1.57 +int get_mono_channel(const ChannelLayout *layout, int stream_id, int prev);
1.58 +
1.59 +
1.60 +
1.61 +#define MODE_SILK_ONLY 1000
1.62 +#define MODE_HYBRID 1001
1.63 +#define MODE_CELT_ONLY 1002
1.64 +
1.65 +#define OPUS_SET_VOICE_RATIO_REQUEST 11018
1.66 +#define OPUS_GET_VOICE_RATIO_REQUEST 11019
1.67 +
1.68 +/** Configures the encoder's expected percentage of voice
1.69 + * opposed to music or other signals.
1.70 + *
1.71 + * @note This interface is currently more aspiration than actuality. It's
1.72 + * ultimately expected to bias an automatic signal classifier, but it currently
1.73 + * just shifts the static bitrate to mode mapping around a little bit.
1.74 + *
1.75 + * @param[in] x <tt>int</tt>: Voice percentage in the range 0-100, inclusive.
1.76 + * @hideinitializer */
1.77 +#define OPUS_SET_VOICE_RATIO(x) OPUS_SET_VOICE_RATIO_REQUEST, __opus_check_int(x)
1.78 +/** Gets the encoder's configured voice ratio value, @see OPUS_SET_VOICE_RATIO
1.79 + *
1.80 + * @param[out] x <tt>int*</tt>: Voice percentage in the range 0-100, inclusive.
1.81 + * @hideinitializer */
1.82 +#define OPUS_GET_VOICE_RATIO(x) OPUS_GET_VOICE_RATIO_REQUEST, __opus_check_int_ptr(x)
1.83 +
1.84 +
1.85 +#define OPUS_SET_FORCE_MODE_REQUEST 11002
1.86 +#define OPUS_SET_FORCE_MODE(x) OPUS_SET_FORCE_MODE_REQUEST, __opus_check_int(x)
1.87 +
1.88 +typedef void (*downmix_func)(const void *, opus_val32 *, int, int, int, int, int);
1.89 +void downmix_float(const void *_x, opus_val32 *sub, int subframe, int offset, int c1, int c2, int C);
1.90 +void downmix_int(const void *_x, opus_val32 *sub, int subframe, int offset, int c1, int c2, int C);
1.91 +
1.92 +int optimize_framesize(const opus_val16 *x, int len, int C, opus_int32 Fs,
1.93 + int bitrate, opus_val16 tonality, float *mem, int buffering,
1.94 + downmix_func downmix);
1.95 +
1.96 +int encode_size(int size, unsigned char *data);
1.97 +
1.98 +opus_int32 frame_size_select(opus_int32 frame_size, int variable_duration, opus_int32 Fs);
1.99 +
1.100 +opus_int32 compute_frame_size(const void *analysis_pcm, int frame_size,
1.101 + int variable_duration, int C, opus_int32 Fs, int bitrate_bps,
1.102 + int delay_compensation, downmix_func downmix
1.103 +#ifndef DISABLE_FLOAT_API
1.104 + , float *subframe_mem
1.105 +#endif
1.106 + );
1.107 +
1.108 +opus_int32 opus_encode_native(OpusEncoder *st, const opus_val16 *pcm, int frame_size,
1.109 + unsigned char *data, opus_int32 out_data_bytes, int lsb_depth,
1.110 + const void *analysis_pcm, opus_int32 analysis_size, int c1, int c2, int analysis_channels, downmix_func downmix);
1.111 +
1.112 +int opus_decode_native(OpusDecoder *st, const unsigned char *data, opus_int32 len,
1.113 + opus_val16 *pcm, int frame_size, int decode_fec, int self_delimited,
1.114 + opus_int32 *packet_offset, int soft_clip);
1.115 +
1.116 +/* Make sure everything's aligned to sizeof(void *) bytes */
1.117 +static OPUS_INLINE int align(int i)
1.118 +{
1.119 + return (i+(int)sizeof(void *)-1)&-(int)sizeof(void *);
1.120 +}
1.121 +
1.122 +int opus_packet_parse_impl(const unsigned char *data, opus_int32 len,
1.123 + int self_delimited, unsigned char *out_toc,
1.124 + const unsigned char *frames[48], opus_int16 size[48],
1.125 + int *payload_offset, opus_int32 *packet_offset);
1.126 +
1.127 +opus_int32 opus_repacketizer_out_range_impl(OpusRepacketizer *rp, int begin, int end,
1.128 + unsigned char *data, opus_int32 maxlen, int self_delimited, int pad);
1.129 +
1.130 +int pad_frame(unsigned char *data, opus_int32 len, opus_int32 new_len);
1.131 +
1.132 +#endif /* OPUS_PRIVATE_H */
