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comparison: media/libopus/src/opus_private.h
media/libopus/src/opus_private.h
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- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:cf1c960764d1 |
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| 1 /* Copyright (c) 2012 Xiph.Org Foundation | |
| 2 Written by Jean-Marc Valin */ | |
| 3 /* | |
| 4 Redistribution and use in source and binary forms, with or without | |
| 5 modification, are permitted provided that the following conditions | |
| 6 are met: | |
| 7 | |
| 8 - Redistributions of source code must retain the above copyright | |
| 9 notice, this list of conditions and the following disclaimer. | |
| 10 | |
| 11 - Redistributions in binary form must reproduce the above copyright | |
| 12 notice, this list of conditions and the following disclaimer in the | |
| 13 documentation and/or other materials provided with the distribution. | |
| 14 | |
| 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 16 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 17 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 18 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | |
| 19 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 23 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 24 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
| 25 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 | |
| 29 #ifndef OPUS_PRIVATE_H | |
| 30 #define OPUS_PRIVATE_H | |
| 31 | |
| 32 #include "arch.h" | |
| 33 #include "opus.h" | |
| 34 #include "celt.h" | |
| 35 | |
| 36 struct OpusRepacketizer { | |
| 37 unsigned char toc; | |
| 38 int nb_frames; | |
| 39 const unsigned char *frames[48]; | |
| 40 opus_int16 len[48]; | |
| 41 int framesize; | |
| 42 }; | |
| 43 | |
| 44 typedef struct ChannelLayout { | |
| 45 int nb_channels; | |
| 46 int nb_streams; | |
| 47 int nb_coupled_streams; | |
| 48 unsigned char mapping[256]; | |
| 49 } ChannelLayout; | |
| 50 | |
| 51 int validate_layout(const ChannelLayout *layout); | |
| 52 int get_left_channel(const ChannelLayout *layout, int stream_id, int prev); | |
| 53 int get_right_channel(const ChannelLayout *layout, int stream_id, int prev); | |
| 54 int get_mono_channel(const ChannelLayout *layout, int stream_id, int prev); | |
| 55 | |
| 56 | |
| 57 | |
| 58 #define MODE_SILK_ONLY 1000 | |
| 59 #define MODE_HYBRID 1001 | |
| 60 #define MODE_CELT_ONLY 1002 | |
| 61 | |
| 62 #define OPUS_SET_VOICE_RATIO_REQUEST 11018 | |
| 63 #define OPUS_GET_VOICE_RATIO_REQUEST 11019 | |
| 64 | |
| 65 /** Configures the encoder's expected percentage of voice | |
| 66 * opposed to music or other signals. | |
| 67 * | |
| 68 * @note This interface is currently more aspiration than actuality. It's | |
| 69 * ultimately expected to bias an automatic signal classifier, but it currently | |
| 70 * just shifts the static bitrate to mode mapping around a little bit. | |
| 71 * | |
| 72 * @param[in] x <tt>int</tt>: Voice percentage in the range 0-100, inclusive. | |
| 73 * @hideinitializer */ | |
| 74 #define OPUS_SET_VOICE_RATIO(x) OPUS_SET_VOICE_RATIO_REQUEST, __opus_check_int(x) | |
| 75 /** Gets the encoder's configured voice ratio value, @see OPUS_SET_VOICE_RATIO | |
| 76 * | |
| 77 * @param[out] x <tt>int*</tt>: Voice percentage in the range 0-100, inclusive. | |
| 78 * @hideinitializer */ | |
| 79 #define OPUS_GET_VOICE_RATIO(x) OPUS_GET_VOICE_RATIO_REQUEST, __opus_check_int_ptr(x) | |
| 80 | |
| 81 | |
| 82 #define OPUS_SET_FORCE_MODE_REQUEST 11002 | |
| 83 #define OPUS_SET_FORCE_MODE(x) OPUS_SET_FORCE_MODE_REQUEST, __opus_check_int(x) | |
| 84 | |
| 85 typedef void (*downmix_func)(const void *, opus_val32 *, int, int, int, int, int); | |
| 86 void downmix_float(const void *_x, opus_val32 *sub, int subframe, int offset, int c1, int c2, int C); | |
| 87 void downmix_int(const void *_x, opus_val32 *sub, int subframe, int offset, int c1, int c2, int C); | |
| 88 | |
| 89 int optimize_framesize(const opus_val16 *x, int len, int C, opus_int32 Fs, | |
| 90 int bitrate, opus_val16 tonality, float *mem, int buffering, | |
| 91 downmix_func downmix); | |
| 92 | |
| 93 int encode_size(int size, unsigned char *data); | |
| 94 | |
| 95 opus_int32 frame_size_select(opus_int32 frame_size, int variable_duration, opus_int32 Fs); | |
| 96 | |
| 97 opus_int32 compute_frame_size(const void *analysis_pcm, int frame_size, | |
| 98 int variable_duration, int C, opus_int32 Fs, int bitrate_bps, | |
| 99 int delay_compensation, downmix_func downmix | |
| 100 #ifndef DISABLE_FLOAT_API | |
| 101 , float *subframe_mem | |
| 102 #endif | |
| 103 ); | |
| 104 | |
| 105 opus_int32 opus_encode_native(OpusEncoder *st, const opus_val16 *pcm, int frame_size, | |
| 106 unsigned char *data, opus_int32 out_data_bytes, int lsb_depth, | |
| 107 const void *analysis_pcm, opus_int32 analysis_size, int c1, int c2, int analysis_channels, downmix_func downmix); | |
| 108 | |
| 109 int opus_decode_native(OpusDecoder *st, const unsigned char *data, opus_int32 len, | |
| 110 opus_val16 *pcm, int frame_size, int decode_fec, int self_delimited, | |
| 111 opus_int32 *packet_offset, int soft_clip); | |
| 112 | |
| 113 /* Make sure everything's aligned to sizeof(void *) bytes */ | |
| 114 static OPUS_INLINE int align(int i) | |
| 115 { | |
| 116 return (i+(int)sizeof(void *)-1)&-(int)sizeof(void *); | |
| 117 } | |
| 118 | |
| 119 int opus_packet_parse_impl(const unsigned char *data, opus_int32 len, | |
| 120 int self_delimited, unsigned char *out_toc, | |
| 121 const unsigned char *frames[48], opus_int16 size[48], | |
| 122 int *payload_offset, opus_int32 *packet_offset); | |
| 123 | |
| 124 opus_int32 opus_repacketizer_out_range_impl(OpusRepacketizer *rp, int begin, int end, | |
| 125 unsigned char *data, opus_int32 maxlen, int self_delimited, int pad); | |
| 126 | |
| 127 int pad_frame(unsigned char *data, opus_int32 len, opus_int32 new_len); | |
| 128 | |
| 129 #endif /* OPUS_PRIVATE_H */ |
