Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 1 | /* Copyright (c) 2011 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 | #ifdef HAVE_CONFIG_H |
| 29 | #include "config.h" |
| 30 | #endif |
| 31 | |
| 32 | #include "opus_multistream.h" |
| 33 | #include "opus.h" |
| 34 | #include "opus_private.h" |
| 35 | #include "stack_alloc.h" |
| 36 | #include <stdarg.h> |
| 37 | #include "float_cast.h" |
| 38 | #include "os_support.h" |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 39 | #include "analysis.h" |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 40 | #include "mathops.h" |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 41 | |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 42 | typedef struct { |
| 43 | int nb_streams; |
| 44 | int nb_coupled_streams; |
| 45 | unsigned char mapping[8]; |
| 46 | } VorbisLayout; |
| 47 | |
| 48 | /* Index is nb_channel-1*/ |
| 49 | static const VorbisLayout vorbis_mappings[8] = { |
| 50 | {1, 0, {0}}, /* 1: mono */ |
| 51 | {1, 1, {0, 1}}, /* 2: stereo */ |
| 52 | {2, 1, {0, 2, 1}}, /* 3: 1-d surround */ |
| 53 | {2, 2, {0, 1, 2, 3}}, /* 4: quadraphonic surround */ |
| 54 | {3, 2, {0, 4, 1, 2, 3}}, /* 5: 5-channel surround */ |
| 55 | {4, 2, {0, 4, 1, 2, 3, 5}}, /* 6: 5.1 surround */ |
| 56 | {4, 3, {0, 4, 1, 2, 3, 5, 6}}, /* 7: 6.1 surround */ |
| 57 | {5, 3, {0, 6, 1, 2, 3, 4, 5, 7}}, /* 8: 7.1 surround */ |
| 58 | }; |
| 59 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 60 | struct OpusMSEncoder { |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 61 | TonalityAnalysisState analysis; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 62 | ChannelLayout layout; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 63 | int lfe_stream; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 64 | int variable_duration; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 65 | int surround; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 66 | opus_int32 bitrate_bps; |
| 67 | opus_val32 subframe_mem[3]; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 68 | /* Encoder states go here */ |
| 69 | }; |
| 70 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 71 | |
| 72 | static int validate_encoder_layout(const ChannelLayout *layout) |
| 73 | { |
| 74 | int s; |
| 75 | for (s=0;s<layout->nb_streams;s++) |
| 76 | { |
| 77 | if (s < layout->nb_coupled_streams) |
| 78 | { |
| 79 | if (get_left_channel(layout, s, -1)==-1) |
| 80 | return 0; |
| 81 | if (get_right_channel(layout, s, -1)==-1) |
| 82 | return 0; |
| 83 | } else { |
| 84 | if (get_mono_channel(layout, s, -1)==-1) |
| 85 | return 0; |
| 86 | } |
| 87 | } |
| 88 | return 1; |
| 89 | } |
| 90 | |
| 91 | |
| 92 | opus_int32 opus_multistream_encoder_get_size(int nb_streams, int nb_coupled_streams) |
| 93 | { |
| 94 | int coupled_size; |
| 95 | int mono_size; |
| 96 | |
| 97 | if(nb_streams<1||nb_coupled_streams>nb_streams||nb_coupled_streams<0)return 0; |
| 98 | coupled_size = opus_encoder_get_size(2); |
| 99 | mono_size = opus_encoder_get_size(1); |
| 100 | return align(sizeof(OpusMSEncoder)) |
| 101 | + nb_coupled_streams * align(coupled_size) |
| 102 | + (nb_streams-nb_coupled_streams) * align(mono_size); |
| 103 | } |
| 104 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 105 | opus_int32 opus_multistream_surround_encoder_get_size(int channels, int mapping_family) |
| 106 | { |
| 107 | int nb_streams; |
| 108 | int nb_coupled_streams; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 109 | opus_int32 size; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 110 | |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 111 | if (mapping_family==0) |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 112 | { |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 113 | if (channels==1) |
| 114 | { |
| 115 | nb_streams=1; |
| 116 | nb_coupled_streams=0; |
| 117 | } else if (channels==2) |
| 118 | { |
| 119 | nb_streams=1; |
| 120 | nb_coupled_streams=1; |
| 121 | } else |
| 122 | return 0; |
| 123 | } else if (mapping_family==1 && channels<=8 && channels>=1) |
| 124 | { |
| 125 | nb_streams=vorbis_mappings[channels-1].nb_streams; |
| 126 | nb_coupled_streams=vorbis_mappings[channels-1].nb_coupled_streams; |
| 127 | } else if (mapping_family==255) |
| 128 | { |
| 129 | nb_streams=channels; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 130 | nb_coupled_streams=0; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 131 | } else |
| 132 | return 0; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 133 | size = opus_multistream_encoder_get_size(nb_streams, nb_coupled_streams); |
| 134 | if (channels>2) |
| 135 | size += align(opus_encoder_get_size(2)); |
| 136 | return size; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 137 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 138 | |
| 139 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 140 | static int opus_multistream_encoder_init_impl( |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 141 | OpusMSEncoder *st, |
| 142 | opus_int32 Fs, |
| 143 | int channels, |
| 144 | int streams, |
| 145 | int coupled_streams, |
| 146 | const unsigned char *mapping, |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 147 | int application, |
| 148 | int surround |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 149 | ) |
| 150 | { |
| 151 | int coupled_size; |
| 152 | int mono_size; |
| 153 | int i, ret; |
| 154 | char *ptr; |
| 155 | |
| 156 | if ((channels>255) || (channels<1) || (coupled_streams>streams) || |
| 157 | (coupled_streams+streams>255) || (streams<1) || (coupled_streams<0)) |
| 158 | return OPUS_BAD_ARG; |
| 159 | |
| 160 | st->layout.nb_channels = channels; |
| 161 | st->layout.nb_streams = streams; |
| 162 | st->layout.nb_coupled_streams = coupled_streams; |
Jean-Marc Valin | b042935 | 2013-05-05 02:22:06 -0400 | [diff] [blame] | 163 | st->subframe_mem[0]=st->subframe_mem[1]=st->subframe_mem[2]=0; |
| 164 | OPUS_CLEAR(&st->analysis,1); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 165 | if (!surround) |
| 166 | st->lfe_stream = -1; |
Jean-Marc Valin | 95561be | 2012-12-17 17:54:01 -0500 | [diff] [blame] | 167 | st->bitrate_bps = OPUS_AUTO; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 168 | st->variable_duration = OPUS_FRAMESIZE_ARG; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 169 | for (i=0;i<st->layout.nb_channels;i++) |
| 170 | st->layout.mapping[i] = mapping[i]; |
| 171 | if (!validate_layout(&st->layout) || !validate_encoder_layout(&st->layout)) |
| 172 | return OPUS_BAD_ARG; |
| 173 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 174 | coupled_size = opus_encoder_get_size(2); |
| 175 | mono_size = opus_encoder_get_size(1); |
| 176 | |
| 177 | for (i=0;i<st->layout.nb_coupled_streams;i++) |
| 178 | { |
| 179 | ret = opus_encoder_init((OpusEncoder*)ptr, Fs, 2, application); |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 180 | if(ret!=OPUS_OK)return ret; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 181 | if (i==st->lfe_stream) |
| 182 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_SET_LFE(1)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 183 | ptr += align(coupled_size); |
| 184 | } |
| 185 | for (;i<st->layout.nb_streams;i++) |
| 186 | { |
| 187 | ret = opus_encoder_init((OpusEncoder*)ptr, Fs, 1, application); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 188 | if (i==st->lfe_stream) |
| 189 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_SET_LFE(1)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 190 | if(ret!=OPUS_OK)return ret; |
| 191 | ptr += align(mono_size); |
| 192 | } |
Jean-Marc Valin | 58d80ab | 2013-05-27 20:47:47 -0400 | [diff] [blame] | 193 | if (surround) |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 194 | { |
| 195 | OpusEncoder *downmix_enc; |
| 196 | downmix_enc = (OpusEncoder*)ptr; |
| 197 | ret = opus_encoder_init(downmix_enc, Fs, 2, OPUS_APPLICATION_AUDIO); |
| 198 | if(ret!=OPUS_OK)return ret; |
| 199 | } |
| 200 | st->surround = surround; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 201 | return OPUS_OK; |
| 202 | } |
| 203 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 204 | int opus_multistream_encoder_init( |
| 205 | OpusMSEncoder *st, |
| 206 | opus_int32 Fs, |
| 207 | int channels, |
| 208 | int streams, |
| 209 | int coupled_streams, |
| 210 | const unsigned char *mapping, |
| 211 | int application |
| 212 | ) |
| 213 | { |
| 214 | return opus_multistream_encoder_init_impl(st, Fs, channels, streams, coupled_streams, mapping, application, 0); |
| 215 | } |
| 216 | |
| 217 | int opus_multistream_surround_encoder_init( |
| 218 | OpusMSEncoder *st, |
| 219 | opus_int32 Fs, |
| 220 | int channels, |
| 221 | int mapping_family, |
| 222 | int *streams, |
| 223 | int *coupled_streams, |
| 224 | unsigned char *mapping, |
| 225 | int application |
| 226 | ) |
| 227 | { |
Jean-Marc Valin | 337f34c | 2013-07-01 16:17:01 -0400 | [diff] [blame] | 228 | if ((channels>255) || (channels<1)) |
| 229 | return OPUS_BAD_ARG; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 230 | st->lfe_stream = -1; |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 231 | if (mapping_family==0) |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 232 | { |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 233 | if (channels==1) |
| 234 | { |
| 235 | *streams=1; |
| 236 | *coupled_streams=0; |
| 237 | mapping[0]=0; |
| 238 | } else if (channels==2) |
| 239 | { |
| 240 | *streams=1; |
| 241 | *coupled_streams=1; |
| 242 | mapping[0]=0; |
| 243 | mapping[1]=1; |
| 244 | } else |
| 245 | return OPUS_UNIMPLEMENTED; |
| 246 | } else if (mapping_family==1 && channels<=8 && channels>=1) |
| 247 | { |
| 248 | int i; |
| 249 | *streams=vorbis_mappings[channels-1].nb_streams; |
| 250 | *coupled_streams=vorbis_mappings[channels-1].nb_coupled_streams; |
| 251 | for (i=0;i<channels;i++) |
| 252 | mapping[i] = vorbis_mappings[channels-1].mapping[i]; |
| 253 | if (channels>=6) |
| 254 | st->lfe_stream = *streams-1; |
| 255 | } else if (mapping_family==255) |
| 256 | { |
| 257 | int i; |
| 258 | *streams=channels; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 259 | *coupled_streams=0; |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 260 | for(i=0;i<channels;i++) |
| 261 | mapping[i] = i; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 262 | } else |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 263 | return OPUS_UNIMPLEMENTED; |
Jean-Marc Valin | 337f34c | 2013-07-01 16:17:01 -0400 | [diff] [blame] | 264 | return opus_multistream_encoder_init_impl(st, Fs, channels, *streams, *coupled_streams, |
Jean-Marc Valin | 58d80ab | 2013-05-27 20:47:47 -0400 | [diff] [blame] | 265 | mapping, application, channels>2&&mapping_family==1); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 266 | } |
| 267 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 268 | OpusMSEncoder *opus_multistream_encoder_create( |
| 269 | opus_int32 Fs, |
| 270 | int channels, |
| 271 | int streams, |
| 272 | int coupled_streams, |
| 273 | const unsigned char *mapping, |
| 274 | int application, |
| 275 | int *error |
| 276 | ) |
| 277 | { |
| 278 | int ret; |
| 279 | OpusMSEncoder *st; |
| 280 | if ((channels>255) || (channels<1) || (coupled_streams>streams) || |
| 281 | (coupled_streams+streams>255) || (streams<1) || (coupled_streams<0)) |
| 282 | { |
| 283 | if (error) |
| 284 | *error = OPUS_BAD_ARG; |
| 285 | return NULL; |
| 286 | } |
| 287 | st = (OpusMSEncoder *)opus_alloc(opus_multistream_encoder_get_size(streams, coupled_streams)); |
| 288 | if (st==NULL) |
| 289 | { |
| 290 | if (error) |
| 291 | *error = OPUS_ALLOC_FAIL; |
| 292 | return NULL; |
| 293 | } |
| 294 | ret = opus_multistream_encoder_init(st, Fs, channels, streams, coupled_streams, mapping, application); |
| 295 | if (ret != OPUS_OK) |
| 296 | { |
| 297 | opus_free(st); |
| 298 | st = NULL; |
| 299 | } |
| 300 | if (error) |
| 301 | *error = ret; |
| 302 | return st; |
| 303 | } |
| 304 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 305 | OpusMSEncoder *opus_multistream_surround_encoder_create( |
| 306 | opus_int32 Fs, |
| 307 | int channels, |
| 308 | int mapping_family, |
| 309 | int *streams, |
| 310 | int *coupled_streams, |
| 311 | unsigned char *mapping, |
| 312 | int application, |
| 313 | int *error |
| 314 | ) |
| 315 | { |
| 316 | int ret; |
| 317 | OpusMSEncoder *st; |
| 318 | if ((channels>255) || (channels<1)) |
| 319 | { |
| 320 | if (error) |
| 321 | *error = OPUS_BAD_ARG; |
| 322 | return NULL; |
| 323 | } |
| 324 | st = (OpusMSEncoder *)opus_alloc(opus_multistream_surround_encoder_get_size(channels, mapping_family)); |
| 325 | if (st==NULL) |
| 326 | { |
| 327 | if (error) |
| 328 | *error = OPUS_ALLOC_FAIL; |
| 329 | return NULL; |
| 330 | } |
| 331 | ret = opus_multistream_surround_encoder_init(st, Fs, channels, mapping_family, streams, coupled_streams, mapping, application); |
| 332 | if (ret != OPUS_OK) |
| 333 | { |
| 334 | opus_free(st); |
| 335 | st = NULL; |
| 336 | } |
| 337 | if (error) |
| 338 | *error = ret; |
| 339 | return st; |
| 340 | } |
| 341 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 342 | typedef void (*opus_copy_channel_in_func)( |
| 343 | opus_val16 *dst, |
| 344 | int dst_stride, |
| 345 | const void *src, |
| 346 | int src_stride, |
| 347 | int src_channel, |
| 348 | int frame_size |
| 349 | ); |
| 350 | |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 351 | typedef void (*opus_surround_downmix_funct)( |
| 352 | opus_val16 *dst, |
| 353 | const void *src, |
| 354 | int channels, |
| 355 | int frame_size |
| 356 | ); |
| 357 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 358 | static void surround_rate_allocation( |
| 359 | OpusMSEncoder *st, |
| 360 | opus_int32 *rate, |
| 361 | int frame_size |
| 362 | ) |
| 363 | { |
| 364 | int i; |
| 365 | opus_int32 channel_rate; |
| 366 | opus_int32 Fs; |
| 367 | char *ptr; |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 368 | int stream_offset; |
| 369 | int lfe_offset; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 370 | int coupled_ratio; /* Q8 */ |
| 371 | int lfe_ratio; /* Q8 */ |
| 372 | |
| 373 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 374 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_SAMPLE_RATE(&Fs)); |
| 375 | |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 376 | if (st->bitrate_bps > st->layout.nb_channels*40000) |
| 377 | stream_offset = 20000; |
| 378 | else |
| 379 | stream_offset = st->bitrate_bps/st->layout.nb_channels/2; |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 380 | /* We start by giving each stream (coupled or uncoupled) the same bitrate. |
| 381 | This models the main saving of coupled channels over uncoupled. */ |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 382 | /* The LFE stream is an exception to the above and gets fewer bits. */ |
| 383 | lfe_offset = 3500; |
| 384 | /* Coupled streams get twice the mono rate after the first 20 kb/s. */ |
| 385 | coupled_ratio = 512; |
| 386 | /* Should depend on the bitrate, for now we assume LFE gets 1/8 the bits of mono */ |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 387 | lfe_ratio = 32; |
| 388 | |
| 389 | /* Compute bitrate allocation between streams */ |
| 390 | if (st->bitrate_bps==OPUS_AUTO) |
| 391 | { |
| 392 | channel_rate = Fs+60*Fs/frame_size; |
| 393 | } else if (st->bitrate_bps==OPUS_BITRATE_MAX) |
| 394 | { |
| 395 | channel_rate = 300000; |
| 396 | } else { |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 397 | int nb_lfe; |
| 398 | int nb_uncoupled; |
| 399 | int nb_coupled; |
| 400 | int total; |
| 401 | nb_lfe = (st->lfe_stream!=-1); |
| 402 | nb_coupled = st->layout.nb_coupled_streams; |
| 403 | nb_uncoupled = st->layout.nb_streams-nb_coupled-nb_lfe; |
| 404 | total = (nb_uncoupled<<8) /* mono */ |
| 405 | + coupled_ratio*nb_coupled /* stereo */ |
| 406 | + nb_lfe*lfe_ratio; |
| 407 | channel_rate = 256*(st->bitrate_bps-lfe_offset*nb_lfe-stream_offset*(nb_coupled+nb_uncoupled))/total; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 408 | } |
| 409 | #ifndef FIXED_POINT |
| 410 | if (st->variable_duration==OPUS_FRAMESIZE_VARIABLE && frame_size != Fs/50) |
| 411 | { |
| 412 | opus_int32 bonus; |
| 413 | bonus = 60*(Fs/frame_size-50); |
| 414 | channel_rate += bonus; |
| 415 | } |
| 416 | #endif |
| 417 | |
| 418 | for (i=0;i<st->layout.nb_streams;i++) |
| 419 | { |
| 420 | if (i<st->layout.nb_coupled_streams) |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 421 | rate[i] = stream_offset+(channel_rate*coupled_ratio>>8); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 422 | else if (i!=st->lfe_stream) |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 423 | rate[i] = stream_offset+channel_rate; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 424 | else |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 425 | rate[i] = lfe_offset+(channel_rate*lfe_ratio>>8); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 426 | } |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 427 | } |
| 428 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 429 | /* Max size in case the encoder decides to return three frames */ |
| 430 | #define MS_FRAME_TMP (3*1275+7) |
| 431 | static int opus_multistream_encode_native |
| 432 | ( |
| 433 | OpusMSEncoder *st, |
| 434 | opus_copy_channel_in_func copy_channel_in, |
| 435 | const void *pcm, |
| 436 | int frame_size, |
| 437 | unsigned char *data, |
Jean-Marc Valin | b3eba24 | 2012-12-20 23:11:53 -0500 | [diff] [blame] | 438 | opus_int32 max_data_bytes, |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 439 | int lsb_depth, |
| 440 | opus_surround_downmix_funct surround_downmix |
Jean-Marc Valin | 10a34a5 | 2012-12-20 00:23:01 -0500 | [diff] [blame] | 441 | #ifndef FIXED_POINT |
| 442 | , downmix_func downmix |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 443 | , const void *pcm_analysis |
Jean-Marc Valin | 10a34a5 | 2012-12-20 00:23:01 -0500 | [diff] [blame] | 444 | #endif |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 445 | ) |
| 446 | { |
| 447 | opus_int32 Fs; |
| 448 | int coupled_size; |
| 449 | int mono_size; |
| 450 | int s; |
| 451 | char *ptr; |
| 452 | int tot_size; |
| 453 | VARDECL(opus_val16, buf); |
| 454 | unsigned char tmp_data[MS_FRAME_TMP]; |
| 455 | OpusRepacketizer rp; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 456 | opus_int32 complexity; |
Pedro Becerra | 1af7f95 | 2013-07-11 00:00:47 -0400 | [diff] [blame] | 457 | #ifndef FIXED_POINT |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 458 | AnalysisInfo analysis_info; |
Pedro Becerra | 1af7f95 | 2013-07-11 00:00:47 -0400 | [diff] [blame] | 459 | #endif |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 460 | const CELTMode *celt_mode; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 461 | opus_int32 bitrates[256]; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 462 | opus_val16 bandLogE[42]; |
| 463 | opus_val16 bandLogE_mono[21]; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 464 | ALLOC_STACK; |
| 465 | |
| 466 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 467 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_SAMPLE_RATE(&Fs)); |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 468 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_COMPLEXITY(&complexity)); |
| 469 | opus_encoder_ctl((OpusEncoder*)ptr, CELT_GET_MODE(&celt_mode)); |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 470 | |
| 471 | if (400*frame_size < Fs) |
| 472 | { |
| 473 | RESTORE_STACK; |
| 474 | return OPUS_BAD_ARG; |
| 475 | } |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 476 | #ifndef FIXED_POINT |
| 477 | analysis_info.valid = 0; |
| 478 | if (complexity >= 7 && Fs==48000) |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 479 | { |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 480 | opus_int32 delay_compensation; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 481 | int channels; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 482 | |
| 483 | channels = st->layout.nb_streams + st->layout.nb_coupled_streams; |
| 484 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_LOOKAHEAD(&delay_compensation)); |
| 485 | delay_compensation -= Fs/400; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 486 | |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 487 | frame_size = run_analysis(&st->analysis, celt_mode, pcm, pcm_analysis, |
| 488 | frame_size, st->variable_duration, channels, Fs, st->bitrate_bps, delay_compensation, lsb_depth, downmix, &analysis_info); |
| 489 | } else |
| 490 | #endif |
| 491 | { |
| 492 | frame_size = frame_size_select(frame_size, st->variable_duration, Fs); |
| 493 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 494 | /* Validate frame_size before using it to allocate stack space. |
| 495 | This mirrors the checks in opus_encode[_float](). */ |
| 496 | if (400*frame_size != Fs && 200*frame_size != Fs && |
| 497 | 100*frame_size != Fs && 50*frame_size != Fs && |
| 498 | 25*frame_size != Fs && 50*frame_size != 3*Fs) |
| 499 | { |
| 500 | RESTORE_STACK; |
| 501 | return OPUS_BAD_ARG; |
| 502 | } |
| 503 | ALLOC(buf, 2*frame_size, opus_val16); |
| 504 | coupled_size = opus_encoder_get_size(2); |
| 505 | mono_size = opus_encoder_get_size(1); |
| 506 | |
Jean-Marc Valin | 58d80ab | 2013-05-27 20:47:47 -0400 | [diff] [blame] | 507 | if (st->surround) |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 508 | { |
| 509 | int i; |
| 510 | unsigned char dummy[512]; |
| 511 | /* Temporary kludge -- remove */ |
| 512 | OpusEncoder *downmix_enc; |
| 513 | |
| 514 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 515 | for (s=0;s<st->layout.nb_streams;s++) |
| 516 | { |
| 517 | if (s < st->layout.nb_coupled_streams) |
| 518 | ptr += align(coupled_size); |
| 519 | else |
| 520 | ptr += align(mono_size); |
| 521 | } |
| 522 | downmix_enc = (OpusEncoder*)ptr; |
| 523 | surround_downmix(buf, pcm, st->layout.nb_channels, frame_size); |
| 524 | opus_encoder_ctl(downmix_enc, OPUS_SET_ENERGY_SAVE(bandLogE)); |
| 525 | opus_encoder_ctl(downmix_enc, OPUS_SET_BANDWIDTH(OPUS_BANDWIDTH_FULLBAND)); |
| 526 | opus_encoder_ctl(downmix_enc, OPUS_SET_FORCE_MODE(MODE_CELT_ONLY)); |
| 527 | opus_encoder_ctl(downmix_enc, OPUS_SET_FORCE_CHANNELS(2)); |
| 528 | opus_encode_native(downmix_enc, buf, frame_size, dummy, 512, lsb_depth |
| 529 | #ifndef FIXED_POINT |
| 530 | , &analysis_info |
| 531 | #endif |
| 532 | ); |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 533 | /* Combines the left and right mask into a centre mask. We |
| 534 | use an approximation for the log of the sum of the energies. */ |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 535 | for(i=0;i<21;i++) |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 536 | { |
| 537 | opus_val16 diff; |
| 538 | diff = ABS16(SUB16(bandLogE[i], bandLogE[21+i])); |
| 539 | diff = diff + HALF16(diff); |
| 540 | diff = SHR32(HALF32(celt_exp2(-diff)), 16-DB_SHIFT); |
| 541 | bandLogE_mono[i] = MAX16(bandLogE[i], bandLogE[21+i]) + diff; |
| 542 | } |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 543 | } |
| 544 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 545 | if (max_data_bytes < 4*st->layout.nb_streams-1) |
| 546 | { |
| 547 | RESTORE_STACK; |
| 548 | return OPUS_BUFFER_TOO_SMALL; |
| 549 | } |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 550 | |
| 551 | /* Compute bitrate allocation between streams (this could be a lot better) */ |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 552 | surround_rate_allocation(st, bitrates, frame_size); |
| 553 | |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 554 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 555 | for (s=0;s<st->layout.nb_streams;s++) |
| 556 | { |
| 557 | OpusEncoder *enc; |
| 558 | enc = (OpusEncoder*)ptr; |
| 559 | if (s < st->layout.nb_coupled_streams) |
| 560 | ptr += align(coupled_size); |
| 561 | else |
| 562 | ptr += align(mono_size); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 563 | opus_encoder_ctl(enc, OPUS_SET_BITRATE(bitrates[s])); |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 564 | if (st->surround) |
| 565 | { |
| 566 | opus_encoder_ctl(enc, OPUS_SET_FORCE_MODE(MODE_CELT_ONLY)); |
| 567 | opus_encoder_ctl(enc, OPUS_SET_BANDWIDTH(OPUS_BANDWIDTH_FULLBAND)); |
| 568 | if (s < st->layout.nb_coupled_streams) |
| 569 | opus_encoder_ctl(enc, OPUS_SET_FORCE_CHANNELS(2)); |
| 570 | } |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 571 | } |
| 572 | |
| 573 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 574 | /* Counting ToC */ |
| 575 | tot_size = 0; |
| 576 | for (s=0;s<st->layout.nb_streams;s++) |
| 577 | { |
| 578 | OpusEncoder *enc; |
| 579 | int len; |
| 580 | int curr_max; |
| 581 | |
| 582 | opus_repacketizer_init(&rp); |
| 583 | enc = (OpusEncoder*)ptr; |
| 584 | if (s < st->layout.nb_coupled_streams) |
| 585 | { |
| 586 | int left, right; |
| 587 | left = get_left_channel(&st->layout, s, -1); |
| 588 | right = get_right_channel(&st->layout, s, -1); |
| 589 | (*copy_channel_in)(buf, 2, |
| 590 | pcm, st->layout.nb_channels, left, frame_size); |
| 591 | (*copy_channel_in)(buf+1, 2, |
| 592 | pcm, st->layout.nb_channels, right, frame_size); |
| 593 | ptr += align(coupled_size); |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 594 | /* FIXME: This isn't correct for the coupled center channels in |
| 595 | 6.1 surround configuration */ |
| 596 | if (st->surround) |
| 597 | opus_encoder_ctl(enc, OPUS_SET_ENERGY_MASK(bandLogE)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 598 | } else { |
| 599 | int chan = get_mono_channel(&st->layout, s, -1); |
| 600 | (*copy_channel_in)(buf, 1, |
| 601 | pcm, st->layout.nb_channels, chan, frame_size); |
| 602 | ptr += align(mono_size); |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 603 | if (st->surround) |
| 604 | opus_encoder_ctl(enc, OPUS_SET_ENERGY_MASK(bandLogE_mono)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 605 | } |
| 606 | /* number of bytes left (+Toc) */ |
| 607 | curr_max = max_data_bytes - tot_size; |
| 608 | /* Reserve three bytes for the last stream and four for the others */ |
| 609 | curr_max -= IMAX(0,4*(st->layout.nb_streams-s-1)-1); |
| 610 | curr_max = IMIN(curr_max,MS_FRAME_TMP); |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 611 | len = opus_encode_native(enc, buf, frame_size, tmp_data, curr_max, lsb_depth |
| 612 | #ifndef FIXED_POINT |
| 613 | , &analysis_info |
| 614 | #endif |
| 615 | ); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 616 | if (len<0) |
| 617 | { |
| 618 | RESTORE_STACK; |
| 619 | return len; |
| 620 | } |
| 621 | /* We need to use the repacketizer to add the self-delimiting lengths |
| 622 | while taking into account the fact that the encoder can now return |
| 623 | more than one frame at a time (e.g. 60 ms CELT-only) */ |
| 624 | opus_repacketizer_cat(&rp, tmp_data, len); |
| 625 | len = opus_repacketizer_out_range_impl(&rp, 0, opus_repacketizer_get_nb_frames(&rp), data, max_data_bytes-tot_size, s != st->layout.nb_streams-1); |
| 626 | data += len; |
| 627 | tot_size += len; |
| 628 | } |
| 629 | RESTORE_STACK; |
| 630 | return tot_size; |
| 631 | |
| 632 | } |
| 633 | |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 634 | static void channel_pos(int channels, int pos[8]) |
| 635 | { |
| 636 | /* Position in the mix: 0 don't mix, 1: left, 2: center, 3:right */ |
| 637 | if (channels==4) |
| 638 | { |
| 639 | pos[0]=1; |
| 640 | pos[1]=3; |
| 641 | pos[2]=1; |
| 642 | pos[3]=3; |
| 643 | } else if (channels==3||channels==5||channels==6) |
| 644 | { |
| 645 | pos[0]=1; |
| 646 | pos[1]=2; |
| 647 | pos[2]=3; |
| 648 | pos[3]=1; |
| 649 | pos[4]=3; |
| 650 | pos[5]=0; |
| 651 | } else if (channels==7) |
| 652 | { |
| 653 | pos[0]=1; |
| 654 | pos[1]=2; |
| 655 | pos[2]=3; |
| 656 | pos[3]=1; |
| 657 | pos[4]=3; |
| 658 | pos[5]=2; |
| 659 | pos[6]=0; |
| 660 | } else if (channels==8) |
| 661 | { |
| 662 | pos[0]=1; |
| 663 | pos[1]=2; |
| 664 | pos[2]=3; |
| 665 | pos[3]=1; |
| 666 | pos[4]=3; |
| 667 | pos[5]=1; |
| 668 | pos[6]=3; |
| 669 | pos[7]=0; |
| 670 | } |
| 671 | } |
| 672 | |
Pedro Becerra | 1af7f95 | 2013-07-11 00:00:47 -0400 | [diff] [blame] | 673 | #if !defined(DISABLE_FLOAT_API) |
| 674 | static void opus_copy_channel_in_float( |
| 675 | opus_val16 *dst, |
| 676 | int dst_stride, |
| 677 | const void *src, |
| 678 | int src_stride, |
| 679 | int src_channel, |
| 680 | int frame_size |
| 681 | ) |
| 682 | { |
| 683 | const float *float_src; |
| 684 | opus_int32 i; |
| 685 | float_src = (const float *)src; |
| 686 | for (i=0;i<frame_size;i++) |
| 687 | #if defined(FIXED_POINT) |
| 688 | dst[i*dst_stride] = FLOAT2INT16(float_src[i*src_stride+src_channel]); |
| 689 | #else |
| 690 | dst[i*dst_stride] = float_src[i*src_stride+src_channel]; |
| 691 | #endif |
| 692 | } |
| 693 | |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 694 | static void opus_surround_downmix_float( |
| 695 | opus_val16 *dst, |
| 696 | const void *src, |
| 697 | int channels, |
| 698 | int frame_size |
| 699 | ) |
| 700 | { |
| 701 | const float *float_src; |
| 702 | opus_int32 i; |
| 703 | int pos[8] = {0}; |
| 704 | int c; |
| 705 | float_src = (const float *)src; |
| 706 | |
| 707 | channel_pos(channels, pos); |
| 708 | for (i=0;i<2*frame_size;i++) |
| 709 | dst[i]=0; |
| 710 | |
| 711 | for (c=0;c<channels;c++) |
| 712 | { |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 713 | if (pos[c]==1) |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 714 | { |
| 715 | for (i=0;i<frame_size;i++) |
| 716 | #if defined(FIXED_POINT) |
| 717 | dst[2*i] += SHR16(FLOAT2INT16(float_src[i*channels+c]),3); |
| 718 | #else |
| 719 | dst[2*i] += float_src[i*channels+c]; |
| 720 | #endif |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 721 | } else if (pos[c]==3) |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 722 | { |
| 723 | for (i=0;i<frame_size;i++) |
| 724 | #if defined(FIXED_POINT) |
| 725 | dst[2*i+1] += SHR16(FLOAT2INT16(float_src[i*channels+c]),3); |
| 726 | #else |
| 727 | dst[2*i+1] += float_src[i*channels+c]; |
| 728 | #endif |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 729 | } else if (pos[c]==2) |
| 730 | { |
| 731 | for (i=0;i<frame_size;i++) |
| 732 | { |
| 733 | #if defined(FIXED_POINT) |
| 734 | dst[2*i] += SHR32(MULT16_16(QCONST16(.70711f,15), FLOAT2INT16(float_src[i*channels+c])),3+15); |
| 735 | dst[2*i+1] += SHR32(MULT16_16(QCONST16(.70711f,15), FLOAT2INT16(float_src[i*channels+c])),3+15); |
| 736 | #else |
Jean-Marc Valin | b29ad00 | 2013-07-12 22:59:29 -0400 | [diff] [blame^] | 737 | dst[2*i] += .707f*float_src[i*channels+c]; |
| 738 | dst[2*i+1] += .707f*float_src[i*channels+c]; |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 739 | #endif |
| 740 | } |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 741 | } |
| 742 | } |
| 743 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 744 | #endif |
| 745 | |
| 746 | static void opus_copy_channel_in_short( |
| 747 | opus_val16 *dst, |
| 748 | int dst_stride, |
| 749 | const void *src, |
| 750 | int src_stride, |
| 751 | int src_channel, |
| 752 | int frame_size |
| 753 | ) |
| 754 | { |
| 755 | const opus_int16 *short_src; |
Timothy B. Terriberry | a8f04b2 | 2013-03-18 14:42:44 -0700 | [diff] [blame] | 756 | opus_int32 i; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 757 | short_src = (const opus_int16 *)src; |
| 758 | for (i=0;i<frame_size;i++) |
| 759 | #if defined(FIXED_POINT) |
| 760 | dst[i*dst_stride] = short_src[i*src_stride+src_channel]; |
| 761 | #else |
| 762 | dst[i*dst_stride] = (1/32768.f)*short_src[i*src_stride+src_channel]; |
| 763 | #endif |
| 764 | } |
| 765 | |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 766 | static void opus_surround_downmix_short( |
| 767 | opus_val16 *dst, |
| 768 | const void *src, |
| 769 | int channels, |
| 770 | int frame_size |
| 771 | ) |
| 772 | { |
| 773 | const opus_int16 *short_src; |
| 774 | opus_int32 i; |
| 775 | int pos[8] = {0}; |
| 776 | int c; |
| 777 | short_src = (const opus_int16 *)src; |
| 778 | |
| 779 | channel_pos(channels, pos); |
| 780 | for (i=0;i<2*frame_size;i++) |
| 781 | dst[i]=0; |
| 782 | |
| 783 | for (c=0;c<channels;c++) |
| 784 | { |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 785 | if (pos[c]==1) |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 786 | { |
| 787 | for (i=0;i<frame_size;i++) |
| 788 | #if defined(FIXED_POINT) |
| 789 | dst[2*i] += SHR16(short_src[i*channels+c],3); |
| 790 | #else |
| 791 | dst[2*i] += (1/32768.f)*short_src[i*channels+c]; |
| 792 | #endif |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 793 | } else if (pos[c]==3) |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 794 | { |
| 795 | for (i=0;i<frame_size;i++) |
| 796 | #if defined(FIXED_POINT) |
| 797 | dst[2*i+1] += SHR16(short_src[i*channels+c],3); |
| 798 | #else |
| 799 | dst[2*i+1] += (1/32768.f)*short_src[i*channels+c]; |
| 800 | #endif |
Jean-Marc Valin | 4958751 | 2013-07-07 02:50:18 -0400 | [diff] [blame] | 801 | } else if (pos[c]==2) |
| 802 | { |
| 803 | for (i=0;i<frame_size;i++) |
| 804 | { |
| 805 | #if defined(FIXED_POINT) |
| 806 | dst[2*i] += SHR32(MULT16_16(QCONST16(.70711f,15), short_src[i*channels+c]),3+15); |
| 807 | dst[2*i+1] += SHR32(MULT16_16(QCONST16(.70711f,15), short_src[i*channels+c]),3+15); |
| 808 | #else |
| 809 | dst[2*i] += (.707f/32768.f)*short_src[i*channels+c]; |
| 810 | dst[2*i+1] += (.707f/32768.f)*short_src[i*channels+c]; |
| 811 | #endif |
| 812 | } |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 813 | } |
| 814 | } |
| 815 | } |
| 816 | |
| 817 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 818 | #ifdef FIXED_POINT |
| 819 | int opus_multistream_encode( |
| 820 | OpusMSEncoder *st, |
| 821 | const opus_val16 *pcm, |
| 822 | int frame_size, |
| 823 | unsigned char *data, |
| 824 | opus_int32 max_data_bytes |
| 825 | ) |
| 826 | { |
| 827 | return opus_multistream_encode_native(st, opus_copy_channel_in_short, |
Jean-Marc Valin | 2f7a315 | 2013-07-07 01:11:23 -0400 | [diff] [blame] | 828 | pcm, frame_size, data, max_data_bytes, 16, opus_surround_downmix_short); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 829 | } |
| 830 | |
| 831 | #ifndef DISABLE_FLOAT_API |
| 832 | int opus_multistream_encode_float( |
| 833 | OpusMSEncoder *st, |
| 834 | const float *pcm, |
| 835 | int frame_size, |
| 836 | unsigned char *data, |
| 837 | opus_int32 max_data_bytes |
| 838 | ) |
| 839 | { |
| 840 | return opus_multistream_encode_native(st, opus_copy_channel_in_float, |
Jean-Marc Valin | 2f7a315 | 2013-07-07 01:11:23 -0400 | [diff] [blame] | 841 | pcm, frame_size, data, max_data_bytes, 16, opus_surround_downmix_float); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 842 | } |
| 843 | #endif |
| 844 | |
| 845 | #else |
| 846 | |
| 847 | int opus_multistream_encode_float |
| 848 | ( |
| 849 | OpusMSEncoder *st, |
| 850 | const opus_val16 *pcm, |
| 851 | int frame_size, |
| 852 | unsigned char *data, |
| 853 | opus_int32 max_data_bytes |
| 854 | ) |
| 855 | { |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 856 | int channels = st->layout.nb_streams + st->layout.nb_coupled_streams; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 857 | return opus_multistream_encode_native(st, opus_copy_channel_in_float, |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 858 | pcm, frame_size, data, max_data_bytes, 24, opus_surround_downmix_float, downmix_float, pcm+channels*st->analysis.analysis_offset); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 859 | } |
| 860 | |
| 861 | int opus_multistream_encode( |
| 862 | OpusMSEncoder *st, |
| 863 | const opus_int16 *pcm, |
| 864 | int frame_size, |
| 865 | unsigned char *data, |
| 866 | opus_int32 max_data_bytes |
| 867 | ) |
| 868 | { |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 869 | int channels = st->layout.nb_streams + st->layout.nb_coupled_streams; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 870 | return opus_multistream_encode_native(st, opus_copy_channel_in_short, |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 871 | pcm, frame_size, data, max_data_bytes, 16, opus_surround_downmix_short, downmix_int, pcm+channels*st->analysis.analysis_offset); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 872 | } |
| 873 | #endif |
| 874 | |
| 875 | int opus_multistream_encoder_ctl(OpusMSEncoder *st, int request, ...) |
| 876 | { |
| 877 | va_list ap; |
| 878 | int coupled_size, mono_size; |
| 879 | char *ptr; |
| 880 | int ret = OPUS_OK; |
| 881 | |
| 882 | va_start(ap, request); |
| 883 | |
| 884 | coupled_size = opus_encoder_get_size(2); |
| 885 | mono_size = opus_encoder_get_size(1); |
| 886 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 887 | switch (request) |
| 888 | { |
| 889 | case OPUS_SET_BITRATE_REQUEST: |
| 890 | { |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 891 | opus_int32 value = va_arg(ap, opus_int32); |
Gregory Maxwell | a0d096f | 2013-06-29 20:33:32 -0700 | [diff] [blame] | 892 | if (value<0 && value!=OPUS_AUTO && value!=OPUS_BITRATE_MAX) |
| 893 | { |
Jean-Marc Valin | 95561be | 2012-12-17 17:54:01 -0500 | [diff] [blame] | 894 | goto bad_arg; |
Gregory Maxwell | b271dae | 2013-06-29 20:25:55 -0700 | [diff] [blame] | 895 | } |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 896 | st->bitrate_bps = value; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 897 | } |
| 898 | break; |
| 899 | case OPUS_GET_BITRATE_REQUEST: |
| 900 | { |
| 901 | int s; |
| 902 | opus_int32 *value = va_arg(ap, opus_int32*); |
Gregory Maxwell | a0d096f | 2013-06-29 20:33:32 -0700 | [diff] [blame] | 903 | if (!value) |
| 904 | { |
Gregory Maxwell | b271dae | 2013-06-29 20:25:55 -0700 | [diff] [blame] | 905 | goto bad_arg; |
| 906 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 907 | *value = 0; |
| 908 | for (s=0;s<st->layout.nb_streams;s++) |
| 909 | { |
| 910 | opus_int32 rate; |
| 911 | OpusEncoder *enc; |
| 912 | enc = (OpusEncoder*)ptr; |
| 913 | if (s < st->layout.nb_coupled_streams) |
| 914 | ptr += align(coupled_size); |
| 915 | else |
| 916 | ptr += align(mono_size); |
| 917 | opus_encoder_ctl(enc, request, &rate); |
| 918 | *value += rate; |
| 919 | } |
| 920 | } |
| 921 | break; |
| 922 | case OPUS_GET_LSB_DEPTH_REQUEST: |
| 923 | case OPUS_GET_VBR_REQUEST: |
| 924 | case OPUS_GET_APPLICATION_REQUEST: |
| 925 | case OPUS_GET_BANDWIDTH_REQUEST: |
| 926 | case OPUS_GET_COMPLEXITY_REQUEST: |
| 927 | case OPUS_GET_PACKET_LOSS_PERC_REQUEST: |
| 928 | case OPUS_GET_DTX_REQUEST: |
| 929 | case OPUS_GET_VOICE_RATIO_REQUEST: |
| 930 | case OPUS_GET_VBR_CONSTRAINT_REQUEST: |
| 931 | case OPUS_GET_SIGNAL_REQUEST: |
| 932 | case OPUS_GET_LOOKAHEAD_REQUEST: |
| 933 | case OPUS_GET_SAMPLE_RATE_REQUEST: |
| 934 | case OPUS_GET_INBAND_FEC_REQUEST: |
| 935 | case OPUS_GET_FORCE_CHANNELS_REQUEST: |
| 936 | { |
| 937 | OpusEncoder *enc; |
| 938 | /* For int32* GET params, just query the first stream */ |
| 939 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 940 | enc = (OpusEncoder*)ptr; |
| 941 | ret = opus_encoder_ctl(enc, request, value); |
| 942 | } |
| 943 | break; |
| 944 | case OPUS_GET_FINAL_RANGE_REQUEST: |
| 945 | { |
| 946 | int s; |
| 947 | opus_uint32 *value = va_arg(ap, opus_uint32*); |
| 948 | opus_uint32 tmp; |
Gregory Maxwell | a0d096f | 2013-06-29 20:33:32 -0700 | [diff] [blame] | 949 | if (!value) |
| 950 | { |
Gregory Maxwell | b271dae | 2013-06-29 20:25:55 -0700 | [diff] [blame] | 951 | goto bad_arg; |
| 952 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 953 | *value=0; |
| 954 | for (s=0;s<st->layout.nb_streams;s++) |
| 955 | { |
| 956 | OpusEncoder *enc; |
| 957 | enc = (OpusEncoder*)ptr; |
| 958 | if (s < st->layout.nb_coupled_streams) |
| 959 | ptr += align(coupled_size); |
| 960 | else |
| 961 | ptr += align(mono_size); |
| 962 | ret = opus_encoder_ctl(enc, request, &tmp); |
| 963 | if (ret != OPUS_OK) break; |
| 964 | *value ^= tmp; |
| 965 | } |
| 966 | } |
| 967 | break; |
| 968 | case OPUS_SET_LSB_DEPTH_REQUEST: |
| 969 | case OPUS_SET_COMPLEXITY_REQUEST: |
| 970 | case OPUS_SET_VBR_REQUEST: |
| 971 | case OPUS_SET_VBR_CONSTRAINT_REQUEST: |
| 972 | case OPUS_SET_BANDWIDTH_REQUEST: |
| 973 | case OPUS_SET_SIGNAL_REQUEST: |
| 974 | case OPUS_SET_APPLICATION_REQUEST: |
| 975 | case OPUS_SET_INBAND_FEC_REQUEST: |
| 976 | case OPUS_SET_PACKET_LOSS_PERC_REQUEST: |
| 977 | case OPUS_SET_DTX_REQUEST: |
| 978 | case OPUS_SET_FORCE_MODE_REQUEST: |
| 979 | case OPUS_SET_FORCE_CHANNELS_REQUEST: |
| 980 | { |
| 981 | int s; |
| 982 | /* This works for int32 params */ |
| 983 | opus_int32 value = va_arg(ap, opus_int32); |
| 984 | for (s=0;s<st->layout.nb_streams;s++) |
| 985 | { |
| 986 | OpusEncoder *enc; |
| 987 | |
| 988 | enc = (OpusEncoder*)ptr; |
| 989 | if (s < st->layout.nb_coupled_streams) |
| 990 | ptr += align(coupled_size); |
| 991 | else |
| 992 | ptr += align(mono_size); |
| 993 | ret = opus_encoder_ctl(enc, request, value); |
| 994 | if (ret != OPUS_OK) |
| 995 | break; |
| 996 | } |
| 997 | } |
| 998 | break; |
| 999 | case OPUS_MULTISTREAM_GET_ENCODER_STATE_REQUEST: |
| 1000 | { |
| 1001 | int s; |
| 1002 | opus_int32 stream_id; |
| 1003 | OpusEncoder **value; |
| 1004 | stream_id = va_arg(ap, opus_int32); |
| 1005 | if (stream_id<0 || stream_id >= st->layout.nb_streams) |
| 1006 | ret = OPUS_BAD_ARG; |
| 1007 | value = va_arg(ap, OpusEncoder**); |
Gregory Maxwell | a0d096f | 2013-06-29 20:33:32 -0700 | [diff] [blame] | 1008 | if (!value) |
| 1009 | { |
Gregory Maxwell | b271dae | 2013-06-29 20:25:55 -0700 | [diff] [blame] | 1010 | goto bad_arg; |
| 1011 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 1012 | for (s=0;s<stream_id;s++) |
| 1013 | { |
| 1014 | if (s < st->layout.nb_coupled_streams) |
| 1015 | ptr += align(coupled_size); |
| 1016 | else |
| 1017 | ptr += align(mono_size); |
| 1018 | } |
| 1019 | *value = (OpusEncoder*)ptr; |
| 1020 | } |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 1021 | break; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 1022 | case OPUS_SET_EXPERT_FRAME_DURATION_REQUEST: |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 1023 | { |
| 1024 | opus_int32 value = va_arg(ap, opus_int32); |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 1025 | st->variable_duration = value; |
| 1026 | } |
| 1027 | break; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 1028 | case OPUS_GET_EXPERT_FRAME_DURATION_REQUEST: |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 1029 | { |
| 1030 | opus_int32 *value = va_arg(ap, opus_int32*); |
Gregory Maxwell | a0d096f | 2013-06-29 20:33:32 -0700 | [diff] [blame] | 1031 | if (!value) |
| 1032 | { |
Gregory Maxwell | b271dae | 2013-06-29 20:25:55 -0700 | [diff] [blame] | 1033 | goto bad_arg; |
| 1034 | } |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 1035 | *value = st->variable_duration; |
| 1036 | } |
| 1037 | break; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 1038 | default: |
| 1039 | ret = OPUS_UNIMPLEMENTED; |
| 1040 | break; |
| 1041 | } |
| 1042 | |
| 1043 | va_end(ap); |
| 1044 | return ret; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 1045 | bad_arg: |
| 1046 | va_end(ap); |
| 1047 | return OPUS_BAD_ARG; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 1048 | } |
| 1049 | |
| 1050 | void opus_multistream_encoder_destroy(OpusMSEncoder *st) |
| 1051 | { |
| 1052 | opus_free(st); |
| 1053 | } |