Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 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" |
Alexandre Lision | 8538238 | 2014-01-27 15:54:16 -0500 | [diff] [blame] | 34 | #include "celt.h" |
Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 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 | |
Alexandre Lision | 8538238 | 2014-01-27 15:54:16 -0500 | [diff] [blame] | 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 | |
Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 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 | |
Alexandre Lision | 8538238 | 2014-01-27 15:54:16 -0500 | [diff] [blame] | 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); |
Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 92 | |
| 93 | int encode_size(int size, unsigned char *data); |
| 94 | |
Alexandre Lision | 8538238 | 2014-01-27 15:54:16 -0500 | [diff] [blame] | 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 | |
Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 109 | int opus_decode_native(OpusDecoder *st, const unsigned char *data, opus_int32 len, |
Alexandre Lision | 8538238 | 2014-01-27 15:54:16 -0500 | [diff] [blame] | 110 | opus_val16 *pcm, int frame_size, int decode_fec, int self_delimited, |
| 111 | opus_int32 *packet_offset, int soft_clip); |
Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 112 | |
| 113 | /* Make sure everything's aligned to sizeof(void *) bytes */ |
Alexandre Lision | 8538238 | 2014-01-27 15:54:16 -0500 | [diff] [blame] | 114 | static OPUS_INLINE int align(int i) |
Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 115 | { |
Alexandre Lision | 8538238 | 2014-01-27 15:54:16 -0500 | [diff] [blame] | 116 | return (i+(int)sizeof(void *)-1)&-(int)sizeof(void *); |
Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 117 | } |
| 118 | |
Alexandre Lision | 8538238 | 2014-01-27 15:54:16 -0500 | [diff] [blame] | 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); |
Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [diff] [blame] | 128 | |
| 129 | #endif /* OPUS_PRIVATE_H */ |