Alexandre Lision | 744f742 | 2013-09-25 11:39:37 -0400 | [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" |
| 39 | |
| 40 | typedef struct ChannelLayout { |
| 41 | int nb_channels; |
| 42 | int nb_streams; |
| 43 | int nb_coupled_streams; |
| 44 | unsigned char mapping[256]; |
| 45 | } ChannelLayout; |
| 46 | |
| 47 | typedef struct { |
| 48 | int nb_streams; |
| 49 | int nb_coupled_streams; |
| 50 | unsigned char mapping[8]; |
| 51 | } VorbisLayout; |
| 52 | |
| 53 | /* Index is nb_channel-1*/ |
| 54 | static const VorbisLayout vorbis_mappings[8] = { |
| 55 | {1, 0, {0}}, /* 1: mono */ |
| 56 | {1, 1, {0, 1}}, /* 2: stereo */ |
| 57 | {2, 1, {0, 2, 1}}, /* 3: 1-d surround */ |
| 58 | {2, 2, {0, 1, 2, 3}}, /* 4: quadraphonic surround */ |
| 59 | {3, 2, {0, 4, 1, 2, 3}}, /* 5: 5-channel surround */ |
| 60 | {4, 2, {0, 4, 1, 2, 3, 5}}, /* 6: 5.1 surround */ |
| 61 | {4, 3, {0, 4, 1, 2, 3, 5, 6}}, /* 7: 6.1 surround */ |
| 62 | {5, 3, {0, 6, 1, 2, 3, 4, 5, 7}}, /* 8: 7.1 surround */ |
| 63 | }; |
| 64 | |
| 65 | struct OpusMSEncoder { |
| 66 | ChannelLayout layout; |
| 67 | opus_int32 bitrate_bps; |
| 68 | int surround; |
| 69 | int lfe_stream; |
| 70 | /* Encoder states go here */ |
| 71 | }; |
| 72 | |
| 73 | struct OpusMSDecoder { |
| 74 | ChannelLayout layout; |
| 75 | /* Decoder states go here */ |
| 76 | }; |
| 77 | |
| 78 | #ifdef FIXED_POINT |
| 79 | #define opus_encode_native opus_encode |
| 80 | #else |
| 81 | #define opus_encode_native opus_encode_float |
| 82 | #endif |
| 83 | |
| 84 | static int validate_layout(const ChannelLayout *layout) |
| 85 | { |
| 86 | int i, max_channel; |
| 87 | |
| 88 | max_channel = layout->nb_streams+layout->nb_coupled_streams; |
| 89 | if (max_channel>255) |
| 90 | return 0; |
| 91 | for (i=0;i<layout->nb_channels;i++) |
| 92 | { |
| 93 | if (layout->mapping[i] >= max_channel && layout->mapping[i] != 255) |
| 94 | return 0; |
| 95 | } |
| 96 | return 1; |
| 97 | } |
| 98 | |
| 99 | |
| 100 | static int get_left_channel(const ChannelLayout *layout, int stream_id, int prev) |
| 101 | { |
| 102 | int i; |
| 103 | i = (prev<0) ? 0 : prev+1; |
| 104 | for (;i<layout->nb_channels;i++) |
| 105 | { |
| 106 | if (layout->mapping[i]==stream_id*2) |
| 107 | return i; |
| 108 | } |
| 109 | return -1; |
| 110 | } |
| 111 | |
| 112 | static int get_right_channel(const ChannelLayout *layout, int stream_id, int prev) |
| 113 | { |
| 114 | int i; |
| 115 | i = (prev<0) ? 0 : prev+1; |
| 116 | for (;i<layout->nb_channels;i++) |
| 117 | { |
| 118 | if (layout->mapping[i]==stream_id*2+1) |
| 119 | return i; |
| 120 | } |
| 121 | return -1; |
| 122 | } |
| 123 | |
| 124 | static int get_mono_channel(const ChannelLayout *layout, int stream_id, int prev) |
| 125 | { |
| 126 | int i; |
| 127 | i = (prev<0) ? 0 : prev+1; |
| 128 | for (;i<layout->nb_channels;i++) |
| 129 | { |
| 130 | if (layout->mapping[i]==stream_id+layout->nb_coupled_streams) |
| 131 | return i; |
| 132 | } |
| 133 | return -1; |
| 134 | } |
| 135 | |
| 136 | static int validate_encoder_layout(const ChannelLayout *layout) |
| 137 | { |
| 138 | int s; |
| 139 | for (s=0;s<layout->nb_streams;s++) |
| 140 | { |
| 141 | if (s < layout->nb_coupled_streams) |
| 142 | { |
| 143 | if (get_left_channel(layout, s, -1)==-1) |
| 144 | return 0; |
| 145 | if (get_right_channel(layout, s, -1)==-1) |
| 146 | return 0; |
| 147 | } else { |
| 148 | if (get_mono_channel(layout, s, -1)==-1) |
| 149 | return 0; |
| 150 | } |
| 151 | } |
| 152 | return 1; |
| 153 | } |
| 154 | |
| 155 | opus_int32 opus_multistream_encoder_get_size(int nb_streams, int nb_coupled_streams) |
| 156 | { |
| 157 | int coupled_size; |
| 158 | int mono_size; |
| 159 | |
| 160 | if(nb_streams<1||nb_coupled_streams>nb_streams||nb_coupled_streams<0)return 0; |
| 161 | coupled_size = opus_encoder_get_size(2); |
| 162 | mono_size = opus_encoder_get_size(1); |
| 163 | return align(sizeof(OpusMSEncoder)) |
| 164 | + nb_coupled_streams * align(coupled_size) |
| 165 | + (nb_streams-nb_coupled_streams) * align(mono_size); |
| 166 | } |
| 167 | |
| 168 | opus_int32 opus_multistream_surround_encoder_get_size(int channels, int mapping_family) |
| 169 | { |
| 170 | int nb_streams; |
| 171 | int nb_coupled_streams; |
| 172 | opus_int32 size; |
| 173 | |
| 174 | if (mapping_family==0) |
| 175 | { |
| 176 | if (channels==1) |
| 177 | { |
| 178 | nb_streams=1; |
| 179 | nb_coupled_streams=0; |
| 180 | } else if (channels==2) |
| 181 | { |
| 182 | nb_streams=1; |
| 183 | nb_coupled_streams=1; |
| 184 | } else |
| 185 | return 0; |
| 186 | } else if (mapping_family==1 && channels<=8 && channels>=1) |
| 187 | { |
| 188 | nb_streams=vorbis_mappings[channels-1].nb_streams; |
| 189 | nb_coupled_streams=vorbis_mappings[channels-1].nb_coupled_streams; |
| 190 | } else if (mapping_family==255) |
| 191 | { |
| 192 | nb_streams=channels; |
| 193 | nb_coupled_streams=0; |
| 194 | } else |
| 195 | return 0; |
| 196 | size = opus_multistream_encoder_get_size(nb_streams, nb_coupled_streams); |
| 197 | return size; |
| 198 | } |
| 199 | |
| 200 | |
| 201 | static int opus_multistream_encoder_init_impl( |
| 202 | OpusMSEncoder *st, |
| 203 | opus_int32 Fs, |
| 204 | int channels, |
| 205 | int streams, |
| 206 | int coupled_streams, |
| 207 | const unsigned char *mapping, |
| 208 | int application, |
| 209 | int surround |
| 210 | ) |
| 211 | { |
| 212 | int coupled_size; |
| 213 | int mono_size; |
| 214 | int i, ret; |
| 215 | char *ptr; |
| 216 | |
| 217 | if ((channels>255) || (channels<1) || (coupled_streams>streams) || |
| 218 | (coupled_streams+streams>255) || (streams<1) || (coupled_streams<0)) |
| 219 | return OPUS_BAD_ARG; |
| 220 | |
| 221 | st->layout.nb_channels = channels; |
| 222 | st->layout.nb_streams = streams; |
| 223 | st->layout.nb_coupled_streams = coupled_streams; |
| 224 | if (!surround) |
| 225 | st->lfe_stream = -1; |
| 226 | st->bitrate_bps = OPUS_AUTO; |
| 227 | for (i=0;i<st->layout.nb_channels;i++) |
| 228 | st->layout.mapping[i] = mapping[i]; |
| 229 | if (!validate_layout(&st->layout) || !validate_encoder_layout(&st->layout)) |
| 230 | return OPUS_BAD_ARG; |
| 231 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 232 | coupled_size = opus_encoder_get_size(2); |
| 233 | mono_size = opus_encoder_get_size(1); |
| 234 | |
| 235 | for (i=0;i<st->layout.nb_coupled_streams;i++) |
| 236 | { |
| 237 | ret = opus_encoder_init((OpusEncoder*)ptr, Fs, 2, application); |
| 238 | if(ret!=OPUS_OK)return ret; |
| 239 | ptr += align(coupled_size); |
| 240 | } |
| 241 | for (;i<st->layout.nb_streams;i++) |
| 242 | { |
| 243 | ret = opus_encoder_init((OpusEncoder*)ptr, Fs, 1, application); |
| 244 | if(ret!=OPUS_OK)return ret; |
| 245 | ptr += align(mono_size); |
| 246 | } |
| 247 | st->surround = surround; |
| 248 | return OPUS_OK; |
| 249 | } |
| 250 | |
| 251 | int opus_multistream_encoder_init( |
| 252 | OpusMSEncoder *st, |
| 253 | opus_int32 Fs, |
| 254 | int channels, |
| 255 | int streams, |
| 256 | int coupled_streams, |
| 257 | const unsigned char *mapping, |
| 258 | int application |
| 259 | ) |
| 260 | { |
| 261 | return opus_multistream_encoder_init_impl(st, Fs, channels, streams, coupled_streams, mapping, application, 0); |
| 262 | } |
| 263 | |
| 264 | int opus_multistream_surround_encoder_init( |
| 265 | OpusMSEncoder *st, |
| 266 | opus_int32 Fs, |
| 267 | int channels, |
| 268 | int mapping_family, |
| 269 | int *streams, |
| 270 | int *coupled_streams, |
| 271 | unsigned char *mapping, |
| 272 | int application |
| 273 | ) |
| 274 | { |
| 275 | if ((channels>255) || (channels<1)) |
| 276 | return OPUS_BAD_ARG; |
| 277 | st->lfe_stream = -1; |
| 278 | if (mapping_family==0) |
| 279 | { |
| 280 | if (channels==1) |
| 281 | { |
| 282 | *streams=1; |
| 283 | *coupled_streams=0; |
| 284 | mapping[0]=0; |
| 285 | } else if (channels==2) |
| 286 | { |
| 287 | *streams=1; |
| 288 | *coupled_streams=1; |
| 289 | mapping[0]=0; |
| 290 | mapping[1]=1; |
| 291 | } else |
| 292 | return OPUS_UNIMPLEMENTED; |
| 293 | } else if (mapping_family==1 && channels<=8 && channels>=1) |
| 294 | { |
| 295 | int i; |
| 296 | *streams=vorbis_mappings[channels-1].nb_streams; |
| 297 | *coupled_streams=vorbis_mappings[channels-1].nb_coupled_streams; |
| 298 | for (i=0;i<channels;i++) |
| 299 | mapping[i] = vorbis_mappings[channels-1].mapping[i]; |
| 300 | if (channels>=6) |
| 301 | st->lfe_stream = *streams-1; |
| 302 | } else if (mapping_family==255) |
| 303 | { |
| 304 | int i; |
| 305 | *streams=channels; |
| 306 | *coupled_streams=0; |
| 307 | for(i=0;i<channels;i++) |
| 308 | mapping[i] = i; |
| 309 | } else |
| 310 | return OPUS_UNIMPLEMENTED; |
| 311 | return opus_multistream_encoder_init_impl(st, Fs, channels, *streams, *coupled_streams, |
| 312 | mapping, application, channels>2&&mapping_family==1); |
| 313 | } |
| 314 | |
| 315 | OpusMSEncoder *opus_multistream_encoder_create( |
| 316 | opus_int32 Fs, |
| 317 | int channels, |
| 318 | int streams, |
| 319 | int coupled_streams, |
| 320 | const unsigned char *mapping, |
| 321 | int application, |
| 322 | int *error |
| 323 | ) |
| 324 | { |
| 325 | int ret; |
| 326 | OpusMSEncoder *st; |
| 327 | if ((channels>255) || (channels<1) || (coupled_streams>streams) || |
| 328 | (coupled_streams+streams>255) || (streams<1) || (coupled_streams<0)) |
| 329 | { |
| 330 | if (error) |
| 331 | *error = OPUS_BAD_ARG; |
| 332 | return NULL; |
| 333 | } |
| 334 | st = (OpusMSEncoder *)opus_alloc(opus_multistream_encoder_get_size(streams, coupled_streams)); |
| 335 | if (st==NULL) |
| 336 | { |
| 337 | if (error) |
| 338 | *error = OPUS_ALLOC_FAIL; |
| 339 | return NULL; |
| 340 | } |
| 341 | ret = opus_multistream_encoder_init(st, Fs, channels, streams, coupled_streams, mapping, application); |
| 342 | if (ret != OPUS_OK) |
| 343 | { |
| 344 | opus_free(st); |
| 345 | st = NULL; |
| 346 | } |
| 347 | if (error) |
| 348 | *error = ret; |
| 349 | return st; |
| 350 | } |
| 351 | |
| 352 | OpusMSEncoder *opus_multistream_surround_encoder_create( |
| 353 | opus_int32 Fs, |
| 354 | int channels, |
| 355 | int mapping_family, |
| 356 | int *streams, |
| 357 | int *coupled_streams, |
| 358 | unsigned char *mapping, |
| 359 | int application, |
| 360 | int *error |
| 361 | ) |
| 362 | { |
| 363 | int ret; |
| 364 | OpusMSEncoder *st; |
| 365 | if ((channels>255) || (channels<1)) |
| 366 | { |
| 367 | if (error) |
| 368 | *error = OPUS_BAD_ARG; |
| 369 | return NULL; |
| 370 | } |
| 371 | st = (OpusMSEncoder *)opus_alloc(opus_multistream_surround_encoder_get_size(channels, mapping_family)); |
| 372 | if (st==NULL) |
| 373 | { |
| 374 | if (error) |
| 375 | *error = OPUS_ALLOC_FAIL; |
| 376 | return NULL; |
| 377 | } |
| 378 | ret = opus_multistream_surround_encoder_init(st, Fs, channels, mapping_family, streams, coupled_streams, mapping, application); |
| 379 | if (ret != OPUS_OK) |
| 380 | { |
| 381 | opus_free(st); |
| 382 | st = NULL; |
| 383 | } |
| 384 | if (error) |
| 385 | *error = ret; |
| 386 | return st; |
| 387 | } |
| 388 | |
| 389 | typedef void (*opus_copy_channel_in_func)( |
| 390 | opus_val16 *dst, |
| 391 | int dst_stride, |
| 392 | const void *src, |
| 393 | int src_stride, |
| 394 | int src_channel, |
| 395 | int frame_size |
| 396 | ); |
| 397 | |
| 398 | static void surround_rate_allocation( |
| 399 | OpusMSEncoder *st, |
| 400 | opus_int32 *rate, |
| 401 | int frame_size |
| 402 | ) |
| 403 | { |
| 404 | int i; |
| 405 | opus_int32 channel_rate; |
| 406 | opus_int32 Fs; |
| 407 | char *ptr; |
| 408 | int stream_offset; |
| 409 | int lfe_offset; |
| 410 | int coupled_ratio; /* Q8 */ |
| 411 | int lfe_ratio; /* Q8 */ |
| 412 | |
| 413 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 414 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_SAMPLE_RATE(&Fs)); |
| 415 | |
| 416 | /* We start by giving each stream (coupled or uncoupled) the same bitrate. |
| 417 | This models the main saving of coupled channels over uncoupled. */ |
| 418 | stream_offset = 20000; |
| 419 | /* The LFE stream is an exception to the above and gets fewer bits. */ |
| 420 | lfe_offset = 7000; |
| 421 | /* Coupled streams get twice the mono rate after the first 20 kb/s. */ |
| 422 | coupled_ratio = 512; |
| 423 | /* Should depend on the bitrate, for now we assume LFE gets 3/8 the bits of mono */ |
| 424 | lfe_ratio = 96; |
| 425 | |
| 426 | /* Compute bitrate allocation between streams */ |
| 427 | if (st->bitrate_bps==OPUS_AUTO) |
| 428 | { |
| 429 | channel_rate = Fs+60*Fs/frame_size; |
| 430 | } else if (st->bitrate_bps==OPUS_BITRATE_MAX) |
| 431 | { |
| 432 | channel_rate = 300000; |
| 433 | } else { |
| 434 | int nb_lfe; |
| 435 | int nb_uncoupled; |
| 436 | int nb_coupled; |
| 437 | int total; |
| 438 | nb_lfe = (st->lfe_stream!=-1); |
| 439 | nb_coupled = st->layout.nb_coupled_streams; |
| 440 | nb_uncoupled = st->layout.nb_streams-nb_coupled-nb_lfe; |
| 441 | total = (nb_uncoupled<<8) /* mono */ |
| 442 | + coupled_ratio*nb_coupled /* stereo */ |
| 443 | + nb_lfe*lfe_ratio; |
| 444 | channel_rate = 256*(st->bitrate_bps-lfe_offset*nb_lfe-stream_offset*(nb_coupled+nb_uncoupled))/total; |
| 445 | } |
| 446 | |
| 447 | for (i=0;i<st->layout.nb_streams;i++) |
| 448 | { |
| 449 | if (i<st->layout.nb_coupled_streams) |
| 450 | rate[i] = stream_offset+(channel_rate*coupled_ratio>>8); |
| 451 | else if (i!=st->lfe_stream) |
| 452 | rate[i] = stream_offset+channel_rate; |
| 453 | else |
| 454 | rate[i] = lfe_offset+(channel_rate*lfe_ratio>>8); |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | /* Max size in case the encoder decides to return three frames */ |
| 459 | #define MS_FRAME_TMP (3*1275+7) |
| 460 | static int opus_multistream_encode_native |
| 461 | ( |
| 462 | OpusMSEncoder *st, |
| 463 | opus_copy_channel_in_func copy_channel_in, |
| 464 | const void *pcm, |
| 465 | int frame_size, |
| 466 | unsigned char *data, |
| 467 | opus_int32 max_data_bytes |
| 468 | ) |
| 469 | { |
| 470 | opus_int32 Fs; |
| 471 | int coupled_size; |
| 472 | int mono_size; |
| 473 | int s; |
| 474 | char *ptr; |
| 475 | int tot_size; |
| 476 | VARDECL(opus_val16, buf); |
| 477 | unsigned char tmp_data[MS_FRAME_TMP]; |
| 478 | OpusRepacketizer rp; |
| 479 | opus_int32 bitrates[256]; |
| 480 | ALLOC_STACK; |
| 481 | |
| 482 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 483 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_SAMPLE_RATE(&Fs)); |
| 484 | |
| 485 | if (400*frame_size < Fs) |
| 486 | { |
| 487 | RESTORE_STACK; |
| 488 | return OPUS_BAD_ARG; |
| 489 | } |
| 490 | /* Validate frame_size before using it to allocate stack space. |
| 491 | This mirrors the checks in opus_encode[_float](). */ |
| 492 | if (400*frame_size != Fs && 200*frame_size != Fs && |
| 493 | 100*frame_size != Fs && 50*frame_size != Fs && |
| 494 | 25*frame_size != Fs && 50*frame_size != 3*Fs) |
| 495 | { |
| 496 | RESTORE_STACK; |
| 497 | return OPUS_BAD_ARG; |
| 498 | } |
| 499 | ALLOC(buf, 2*frame_size, opus_val16); |
| 500 | coupled_size = opus_encoder_get_size(2); |
| 501 | mono_size = opus_encoder_get_size(1); |
| 502 | |
| 503 | if (max_data_bytes < 4*st->layout.nb_streams-1) |
| 504 | { |
| 505 | RESTORE_STACK; |
| 506 | return OPUS_BUFFER_TOO_SMALL; |
| 507 | } |
| 508 | /* Compute bitrate allocation between streams (this could be a lot better) */ |
| 509 | surround_rate_allocation(st, bitrates, frame_size); |
| 510 | |
| 511 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 512 | for (s=0;s<st->layout.nb_streams;s++) |
| 513 | { |
| 514 | OpusEncoder *enc; |
| 515 | enc = (OpusEncoder*)ptr; |
| 516 | if (s < st->layout.nb_coupled_streams) |
| 517 | ptr += align(coupled_size); |
| 518 | else |
| 519 | ptr += align(mono_size); |
| 520 | opus_encoder_ctl(enc, OPUS_SET_BITRATE(bitrates[s])); |
| 521 | if (st->surround) |
| 522 | { |
| 523 | opus_encoder_ctl(enc, OPUS_SET_FORCE_MODE(MODE_CELT_ONLY)); |
| 524 | opus_encoder_ctl(enc, OPUS_SET_BANDWIDTH(OPUS_BANDWIDTH_FULLBAND)); |
| 525 | if (s < st->layout.nb_coupled_streams) |
| 526 | opus_encoder_ctl(enc, OPUS_SET_FORCE_CHANNELS(2)); |
| 527 | } |
| 528 | } |
| 529 | |
| 530 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 531 | /* Counting ToC */ |
| 532 | tot_size = 0; |
| 533 | for (s=0;s<st->layout.nb_streams;s++) |
| 534 | { |
| 535 | OpusEncoder *enc; |
| 536 | int len; |
| 537 | int curr_max; |
| 538 | |
| 539 | opus_repacketizer_init(&rp); |
| 540 | enc = (OpusEncoder*)ptr; |
| 541 | if (s < st->layout.nb_coupled_streams) |
| 542 | { |
| 543 | int left, right; |
| 544 | left = get_left_channel(&st->layout, s, -1); |
| 545 | right = get_right_channel(&st->layout, s, -1); |
| 546 | (*copy_channel_in)(buf, 2, |
| 547 | pcm, st->layout.nb_channels, left, frame_size); |
| 548 | (*copy_channel_in)(buf+1, 2, |
| 549 | pcm, st->layout.nb_channels, right, frame_size); |
| 550 | ptr += align(coupled_size); |
| 551 | } else { |
| 552 | int chan = get_mono_channel(&st->layout, s, -1); |
| 553 | (*copy_channel_in)(buf, 1, |
| 554 | pcm, st->layout.nb_channels, chan, frame_size); |
| 555 | ptr += align(mono_size); |
| 556 | } |
| 557 | /* number of bytes left (+Toc) */ |
| 558 | curr_max = max_data_bytes - tot_size; |
| 559 | /* Reserve three bytes for the last stream and four for the others */ |
| 560 | curr_max -= IMAX(0,4*(st->layout.nb_streams-s-1)-1); |
| 561 | curr_max = IMIN(curr_max,MS_FRAME_TMP); |
| 562 | len = opus_encode_native(enc, buf, frame_size, tmp_data, curr_max); |
| 563 | if (len<0) |
| 564 | { |
| 565 | RESTORE_STACK; |
| 566 | return len; |
| 567 | } |
| 568 | /* We need to use the repacketizer to add the self-delimiting lengths |
| 569 | while taking into account the fact that the encoder can now return |
| 570 | more than one frame at a time (e.g. 60 ms CELT-only) */ |
| 571 | opus_repacketizer_cat(&rp, tmp_data, len); |
| 572 | 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); |
| 573 | data += len; |
| 574 | tot_size += len; |
| 575 | } |
| 576 | RESTORE_STACK; |
| 577 | return tot_size; |
| 578 | |
| 579 | } |
| 580 | |
| 581 | #if !defined(DISABLE_FLOAT_API) |
| 582 | static void opus_copy_channel_in_float( |
| 583 | opus_val16 *dst, |
| 584 | int dst_stride, |
| 585 | const void *src, |
| 586 | int src_stride, |
| 587 | int src_channel, |
| 588 | int frame_size |
| 589 | ) |
| 590 | { |
| 591 | const float *float_src; |
| 592 | int i; |
| 593 | float_src = (const float *)src; |
| 594 | for (i=0;i<frame_size;i++) |
| 595 | #if defined(FIXED_POINT) |
| 596 | dst[i*dst_stride] = FLOAT2INT16(float_src[i*src_stride+src_channel]); |
| 597 | #else |
| 598 | dst[i*dst_stride] = float_src[i*src_stride+src_channel]; |
| 599 | #endif |
| 600 | } |
| 601 | #endif |
| 602 | |
| 603 | static void opus_copy_channel_in_short( |
| 604 | opus_val16 *dst, |
| 605 | int dst_stride, |
| 606 | const void *src, |
| 607 | int src_stride, |
| 608 | int src_channel, |
| 609 | int frame_size |
| 610 | ) |
| 611 | { |
| 612 | const opus_int16 *short_src; |
| 613 | int i; |
| 614 | short_src = (const opus_int16 *)src; |
| 615 | for (i=0;i<frame_size;i++) |
| 616 | #if defined(FIXED_POINT) |
| 617 | dst[i*dst_stride] = short_src[i*src_stride+src_channel]; |
| 618 | #else |
| 619 | dst[i*dst_stride] = (1/32768.f)*short_src[i*src_stride+src_channel]; |
| 620 | #endif |
| 621 | } |
| 622 | |
| 623 | #ifdef FIXED_POINT |
| 624 | int opus_multistream_encode( |
| 625 | OpusMSEncoder *st, |
| 626 | const opus_val16 *pcm, |
| 627 | int frame_size, |
| 628 | unsigned char *data, |
| 629 | opus_int32 max_data_bytes |
| 630 | ) |
| 631 | { |
| 632 | return opus_multistream_encode_native(st, opus_copy_channel_in_short, |
| 633 | pcm, frame_size, data, max_data_bytes); |
| 634 | } |
| 635 | |
| 636 | #ifndef DISABLE_FLOAT_API |
| 637 | int opus_multistream_encode_float( |
| 638 | OpusMSEncoder *st, |
| 639 | const float *pcm, |
| 640 | int frame_size, |
| 641 | unsigned char *data, |
| 642 | opus_int32 max_data_bytes |
| 643 | ) |
| 644 | { |
| 645 | return opus_multistream_encode_native(st, opus_copy_channel_in_float, |
| 646 | pcm, frame_size, data, max_data_bytes); |
| 647 | } |
| 648 | #endif |
| 649 | |
| 650 | #else |
| 651 | |
| 652 | int opus_multistream_encode_float |
| 653 | ( |
| 654 | OpusMSEncoder *st, |
| 655 | const opus_val16 *pcm, |
| 656 | int frame_size, |
| 657 | unsigned char *data, |
| 658 | opus_int32 max_data_bytes |
| 659 | ) |
| 660 | { |
| 661 | return opus_multistream_encode_native(st, opus_copy_channel_in_float, |
| 662 | pcm, frame_size, data, max_data_bytes); |
| 663 | } |
| 664 | |
| 665 | int opus_multistream_encode( |
| 666 | OpusMSEncoder *st, |
| 667 | const opus_int16 *pcm, |
| 668 | int frame_size, |
| 669 | unsigned char *data, |
| 670 | opus_int32 max_data_bytes |
| 671 | ) |
| 672 | { |
| 673 | return opus_multistream_encode_native(st, opus_copy_channel_in_short, |
| 674 | pcm, frame_size, data, max_data_bytes); |
| 675 | } |
| 676 | #endif |
| 677 | |
| 678 | int opus_multistream_encoder_ctl(OpusMSEncoder *st, int request, ...) |
| 679 | { |
| 680 | va_list ap; |
| 681 | int coupled_size, mono_size; |
| 682 | char *ptr; |
| 683 | int ret = OPUS_OK; |
| 684 | |
| 685 | va_start(ap, request); |
| 686 | |
| 687 | coupled_size = opus_encoder_get_size(2); |
| 688 | mono_size = opus_encoder_get_size(1); |
| 689 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 690 | switch (request) |
| 691 | { |
| 692 | case OPUS_SET_BITRATE_REQUEST: |
| 693 | { |
| 694 | opus_int32 value = va_arg(ap, opus_int32); |
| 695 | if (value<0 && value!=OPUS_AUTO && value!=OPUS_BITRATE_MAX) |
| 696 | goto bad_arg; |
| 697 | st->bitrate_bps = value; |
| 698 | } |
| 699 | break; |
| 700 | case OPUS_GET_BITRATE_REQUEST: |
| 701 | { |
| 702 | int s; |
| 703 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 704 | *value = 0; |
| 705 | for (s=0;s<st->layout.nb_streams;s++) |
| 706 | { |
| 707 | opus_int32 rate; |
| 708 | OpusEncoder *enc; |
| 709 | enc = (OpusEncoder*)ptr; |
| 710 | if (s < st->layout.nb_coupled_streams) |
| 711 | ptr += align(coupled_size); |
| 712 | else |
| 713 | ptr += align(mono_size); |
| 714 | opus_encoder_ctl(enc, request, &rate); |
| 715 | *value += rate; |
| 716 | } |
| 717 | } |
| 718 | break; |
| 719 | case OPUS_GET_LSB_DEPTH_REQUEST: |
| 720 | case OPUS_GET_VBR_REQUEST: |
| 721 | case OPUS_GET_APPLICATION_REQUEST: |
| 722 | case OPUS_GET_BANDWIDTH_REQUEST: |
| 723 | case OPUS_GET_COMPLEXITY_REQUEST: |
| 724 | case OPUS_GET_PACKET_LOSS_PERC_REQUEST: |
| 725 | case OPUS_GET_DTX_REQUEST: |
| 726 | case OPUS_GET_VOICE_RATIO_REQUEST: |
| 727 | case OPUS_GET_VBR_CONSTRAINT_REQUEST: |
| 728 | case OPUS_GET_SIGNAL_REQUEST: |
| 729 | case OPUS_GET_LOOKAHEAD_REQUEST: |
| 730 | case OPUS_GET_SAMPLE_RATE_REQUEST: |
| 731 | case OPUS_GET_INBAND_FEC_REQUEST: |
| 732 | case OPUS_GET_FORCE_CHANNELS_REQUEST: |
| 733 | { |
| 734 | OpusEncoder *enc; |
| 735 | /* For int32* GET params, just query the first stream */ |
| 736 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 737 | enc = (OpusEncoder*)ptr; |
| 738 | ret = opus_encoder_ctl(enc, request, value); |
| 739 | } |
| 740 | break; |
| 741 | case OPUS_GET_FINAL_RANGE_REQUEST: |
| 742 | { |
| 743 | int s; |
| 744 | opus_uint32 *value = va_arg(ap, opus_uint32*); |
| 745 | opus_uint32 tmp; |
| 746 | *value=0; |
| 747 | for (s=0;s<st->layout.nb_streams;s++) |
| 748 | { |
| 749 | OpusEncoder *enc; |
| 750 | enc = (OpusEncoder*)ptr; |
| 751 | if (s < st->layout.nb_coupled_streams) |
| 752 | ptr += align(coupled_size); |
| 753 | else |
| 754 | ptr += align(mono_size); |
| 755 | ret = opus_encoder_ctl(enc, request, &tmp); |
| 756 | if (ret != OPUS_OK) break; |
| 757 | *value ^= tmp; |
| 758 | } |
| 759 | } |
| 760 | break; |
| 761 | case OPUS_SET_LSB_DEPTH_REQUEST: |
| 762 | case OPUS_SET_COMPLEXITY_REQUEST: |
| 763 | case OPUS_SET_VBR_REQUEST: |
| 764 | case OPUS_SET_VBR_CONSTRAINT_REQUEST: |
| 765 | case OPUS_SET_BANDWIDTH_REQUEST: |
| 766 | case OPUS_SET_SIGNAL_REQUEST: |
| 767 | case OPUS_SET_APPLICATION_REQUEST: |
| 768 | case OPUS_SET_INBAND_FEC_REQUEST: |
| 769 | case OPUS_SET_PACKET_LOSS_PERC_REQUEST: |
| 770 | case OPUS_SET_DTX_REQUEST: |
| 771 | case OPUS_SET_FORCE_MODE_REQUEST: |
| 772 | case OPUS_SET_FORCE_CHANNELS_REQUEST: |
| 773 | { |
| 774 | int s; |
| 775 | /* This works for int32 params */ |
| 776 | opus_int32 value = va_arg(ap, opus_int32); |
| 777 | for (s=0;s<st->layout.nb_streams;s++) |
| 778 | { |
| 779 | OpusEncoder *enc; |
| 780 | |
| 781 | enc = (OpusEncoder*)ptr; |
| 782 | if (s < st->layout.nb_coupled_streams) |
| 783 | ptr += align(coupled_size); |
| 784 | else |
| 785 | ptr += align(mono_size); |
| 786 | ret = opus_encoder_ctl(enc, request, value); |
| 787 | if (ret != OPUS_OK) |
| 788 | break; |
| 789 | } |
| 790 | } |
| 791 | break; |
| 792 | case OPUS_MULTISTREAM_GET_ENCODER_STATE_REQUEST: |
| 793 | { |
| 794 | int s; |
| 795 | opus_int32 stream_id; |
| 796 | OpusEncoder **value; |
| 797 | stream_id = va_arg(ap, opus_int32); |
| 798 | if (stream_id<0 || stream_id >= st->layout.nb_streams) |
| 799 | ret = OPUS_BAD_ARG; |
| 800 | value = va_arg(ap, OpusEncoder**); |
| 801 | for (s=0;s<stream_id;s++) |
| 802 | { |
| 803 | if (s < st->layout.nb_coupled_streams) |
| 804 | ptr += align(coupled_size); |
| 805 | else |
| 806 | ptr += align(mono_size); |
| 807 | } |
| 808 | *value = (OpusEncoder*)ptr; |
| 809 | } |
| 810 | break; |
| 811 | default: |
| 812 | ret = OPUS_UNIMPLEMENTED; |
| 813 | break; |
| 814 | } |
| 815 | |
| 816 | va_end(ap); |
| 817 | return ret; |
| 818 | bad_arg: |
| 819 | va_end(ap); |
| 820 | return OPUS_BAD_ARG; |
| 821 | } |
| 822 | |
| 823 | void opus_multistream_encoder_destroy(OpusMSEncoder *st) |
| 824 | { |
| 825 | opus_free(st); |
| 826 | } |
| 827 | |
| 828 | |
| 829 | /* DECODER */ |
| 830 | |
| 831 | opus_int32 opus_multistream_decoder_get_size(int nb_streams, int nb_coupled_streams) |
| 832 | { |
| 833 | int coupled_size; |
| 834 | int mono_size; |
| 835 | |
| 836 | if(nb_streams<1||nb_coupled_streams>nb_streams||nb_coupled_streams<0)return 0; |
| 837 | coupled_size = opus_decoder_get_size(2); |
| 838 | mono_size = opus_decoder_get_size(1); |
| 839 | return align(sizeof(OpusMSDecoder)) |
| 840 | + nb_coupled_streams * align(coupled_size) |
| 841 | + (nb_streams-nb_coupled_streams) * align(mono_size); |
| 842 | } |
| 843 | |
| 844 | int opus_multistream_decoder_init( |
| 845 | OpusMSDecoder *st, |
| 846 | opus_int32 Fs, |
| 847 | int channels, |
| 848 | int streams, |
| 849 | int coupled_streams, |
| 850 | const unsigned char *mapping |
| 851 | ) |
| 852 | { |
| 853 | int coupled_size; |
| 854 | int mono_size; |
| 855 | int i, ret; |
| 856 | char *ptr; |
| 857 | |
| 858 | if ((channels>255) || (channels<1) || (coupled_streams>streams) || |
| 859 | (coupled_streams+streams>255) || (streams<1) || (coupled_streams<0)) |
| 860 | return OPUS_BAD_ARG; |
| 861 | |
| 862 | st->layout.nb_channels = channels; |
| 863 | st->layout.nb_streams = streams; |
| 864 | st->layout.nb_coupled_streams = coupled_streams; |
| 865 | |
| 866 | for (i=0;i<st->layout.nb_channels;i++) |
| 867 | st->layout.mapping[i] = mapping[i]; |
| 868 | if (!validate_layout(&st->layout)) |
| 869 | return OPUS_BAD_ARG; |
| 870 | |
| 871 | ptr = (char*)st + align(sizeof(OpusMSDecoder)); |
| 872 | coupled_size = opus_decoder_get_size(2); |
| 873 | mono_size = opus_decoder_get_size(1); |
| 874 | |
| 875 | for (i=0;i<st->layout.nb_coupled_streams;i++) |
| 876 | { |
| 877 | ret=opus_decoder_init((OpusDecoder*)ptr, Fs, 2); |
| 878 | if(ret!=OPUS_OK)return ret; |
| 879 | ptr += align(coupled_size); |
| 880 | } |
| 881 | for (;i<st->layout.nb_streams;i++) |
| 882 | { |
| 883 | ret=opus_decoder_init((OpusDecoder*)ptr, Fs, 1); |
| 884 | if(ret!=OPUS_OK)return ret; |
| 885 | ptr += align(mono_size); |
| 886 | } |
| 887 | return OPUS_OK; |
| 888 | } |
| 889 | |
| 890 | |
| 891 | OpusMSDecoder *opus_multistream_decoder_create( |
| 892 | opus_int32 Fs, |
| 893 | int channels, |
| 894 | int streams, |
| 895 | int coupled_streams, |
| 896 | const unsigned char *mapping, |
| 897 | int *error |
| 898 | ) |
| 899 | { |
| 900 | int ret; |
| 901 | OpusMSDecoder *st; |
| 902 | if ((channels>255) || (channels<1) || (coupled_streams>streams) || |
| 903 | (coupled_streams+streams>255) || (streams<1) || (coupled_streams<0)) |
| 904 | { |
| 905 | if (error) |
| 906 | *error = OPUS_BAD_ARG; |
| 907 | return NULL; |
| 908 | } |
| 909 | st = (OpusMSDecoder *)opus_alloc(opus_multistream_decoder_get_size(streams, coupled_streams)); |
| 910 | if (st==NULL) |
| 911 | { |
| 912 | if (error) |
| 913 | *error = OPUS_ALLOC_FAIL; |
| 914 | return NULL; |
| 915 | } |
| 916 | ret = opus_multistream_decoder_init(st, Fs, channels, streams, coupled_streams, mapping); |
| 917 | if (error) |
| 918 | *error = ret; |
| 919 | if (ret != OPUS_OK) |
| 920 | { |
| 921 | opus_free(st); |
| 922 | st = NULL; |
| 923 | } |
| 924 | return st; |
| 925 | } |
| 926 | |
| 927 | typedef void (*opus_copy_channel_out_func)( |
| 928 | void *dst, |
| 929 | int dst_stride, |
| 930 | int dst_channel, |
| 931 | const opus_val16 *src, |
| 932 | int src_stride, |
| 933 | int frame_size |
| 934 | ); |
| 935 | |
| 936 | static int opus_multistream_decode_native( |
| 937 | OpusMSDecoder *st, |
| 938 | const unsigned char *data, |
| 939 | opus_int32 len, |
| 940 | void *pcm, |
| 941 | opus_copy_channel_out_func copy_channel_out, |
| 942 | int frame_size, |
| 943 | int decode_fec |
| 944 | ) |
| 945 | { |
| 946 | opus_int32 Fs; |
| 947 | int coupled_size; |
| 948 | int mono_size; |
| 949 | int s, c; |
| 950 | char *ptr; |
| 951 | int do_plc=0; |
| 952 | VARDECL(opus_val16, buf); |
| 953 | ALLOC_STACK; |
| 954 | |
| 955 | /* Limit frame_size to avoid excessive stack allocations. */ |
| 956 | opus_multistream_decoder_ctl(st, OPUS_GET_SAMPLE_RATE(&Fs)); |
| 957 | frame_size = IMIN(frame_size, Fs/25*3); |
| 958 | ALLOC(buf, 2*frame_size, opus_val16); |
| 959 | ptr = (char*)st + align(sizeof(OpusMSDecoder)); |
| 960 | coupled_size = opus_decoder_get_size(2); |
| 961 | mono_size = opus_decoder_get_size(1); |
| 962 | |
| 963 | if (len==0) |
| 964 | do_plc = 1; |
| 965 | if (len < 0) |
| 966 | return OPUS_BAD_ARG; |
| 967 | if (!do_plc && len < 2*st->layout.nb_streams-1) |
| 968 | return OPUS_INVALID_PACKET; |
| 969 | for (s=0;s<st->layout.nb_streams;s++) |
| 970 | { |
| 971 | OpusDecoder *dec; |
| 972 | int packet_offset, ret; |
| 973 | |
| 974 | dec = (OpusDecoder*)ptr; |
| 975 | ptr += (s < st->layout.nb_coupled_streams) ? align(coupled_size) : align(mono_size); |
| 976 | |
| 977 | if (!do_plc && len<=0) |
| 978 | { |
| 979 | RESTORE_STACK; |
| 980 | return OPUS_INVALID_PACKET; |
| 981 | } |
| 982 | packet_offset = 0; |
| 983 | ret = opus_decode_native(dec, data, len, buf, frame_size, decode_fec, s!=st->layout.nb_streams-1, &packet_offset); |
| 984 | data += packet_offset; |
| 985 | len -= packet_offset; |
| 986 | if (ret > frame_size) |
| 987 | { |
| 988 | RESTORE_STACK; |
| 989 | return OPUS_BUFFER_TOO_SMALL; |
| 990 | } |
| 991 | if (s>0 && ret != frame_size) |
| 992 | { |
| 993 | RESTORE_STACK; |
| 994 | return OPUS_INVALID_PACKET; |
| 995 | } |
| 996 | if (ret <= 0) |
| 997 | { |
| 998 | RESTORE_STACK; |
| 999 | return ret; |
| 1000 | } |
| 1001 | frame_size = ret; |
| 1002 | if (s < st->layout.nb_coupled_streams) |
| 1003 | { |
| 1004 | int chan, prev; |
| 1005 | prev = -1; |
| 1006 | /* Copy "left" audio to the channel(s) where it belongs */ |
| 1007 | while ( (chan = get_left_channel(&st->layout, s, prev)) != -1) |
| 1008 | { |
| 1009 | (*copy_channel_out)(pcm, st->layout.nb_channels, chan, |
| 1010 | buf, 2, frame_size); |
| 1011 | prev = chan; |
| 1012 | } |
| 1013 | prev = -1; |
| 1014 | /* Copy "right" audio to the channel(s) where it belongs */ |
| 1015 | while ( (chan = get_right_channel(&st->layout, s, prev)) != -1) |
| 1016 | { |
| 1017 | (*copy_channel_out)(pcm, st->layout.nb_channels, chan, |
| 1018 | buf+1, 2, frame_size); |
| 1019 | prev = chan; |
| 1020 | } |
| 1021 | } else { |
| 1022 | int chan, prev; |
| 1023 | prev = -1; |
| 1024 | /* Copy audio to the channel(s) where it belongs */ |
| 1025 | while ( (chan = get_mono_channel(&st->layout, s, prev)) != -1) |
| 1026 | { |
| 1027 | (*copy_channel_out)(pcm, st->layout.nb_channels, chan, |
| 1028 | buf, 1, frame_size); |
| 1029 | prev = chan; |
| 1030 | } |
| 1031 | } |
| 1032 | } |
| 1033 | /* Handle muted channels */ |
| 1034 | for (c=0;c<st->layout.nb_channels;c++) |
| 1035 | { |
| 1036 | if (st->layout.mapping[c] == 255) |
| 1037 | { |
| 1038 | (*copy_channel_out)(pcm, st->layout.nb_channels, c, |
| 1039 | NULL, 0, frame_size); |
| 1040 | } |
| 1041 | } |
| 1042 | RESTORE_STACK; |
| 1043 | return frame_size; |
| 1044 | } |
| 1045 | |
| 1046 | #if !defined(DISABLE_FLOAT_API) |
| 1047 | static void opus_copy_channel_out_float( |
| 1048 | void *dst, |
| 1049 | int dst_stride, |
| 1050 | int dst_channel, |
| 1051 | const opus_val16 *src, |
| 1052 | int src_stride, |
| 1053 | int frame_size |
| 1054 | ) |
| 1055 | { |
| 1056 | float *float_dst; |
| 1057 | int i; |
| 1058 | float_dst = (float*)dst; |
| 1059 | if (src != NULL) |
| 1060 | { |
| 1061 | for (i=0;i<frame_size;i++) |
| 1062 | #if defined(FIXED_POINT) |
| 1063 | float_dst[i*dst_stride+dst_channel] = (1/32768.f)*src[i*src_stride]; |
| 1064 | #else |
| 1065 | float_dst[i*dst_stride+dst_channel] = src[i*src_stride]; |
| 1066 | #endif |
| 1067 | } |
| 1068 | else |
| 1069 | { |
| 1070 | for (i=0;i<frame_size;i++) |
| 1071 | float_dst[i*dst_stride+dst_channel] = 0; |
| 1072 | } |
| 1073 | } |
| 1074 | #endif |
| 1075 | |
| 1076 | static void opus_copy_channel_out_short( |
| 1077 | void *dst, |
| 1078 | int dst_stride, |
| 1079 | int dst_channel, |
| 1080 | const opus_val16 *src, |
| 1081 | int src_stride, |
| 1082 | int frame_size |
| 1083 | ) |
| 1084 | { |
| 1085 | opus_int16 *short_dst; |
| 1086 | int i; |
| 1087 | short_dst = (opus_int16*)dst; |
| 1088 | if (src != NULL) |
| 1089 | { |
| 1090 | for (i=0;i<frame_size;i++) |
| 1091 | #if defined(FIXED_POINT) |
| 1092 | short_dst[i*dst_stride+dst_channel] = src[i*src_stride]; |
| 1093 | #else |
| 1094 | short_dst[i*dst_stride+dst_channel] = FLOAT2INT16(src[i*src_stride]); |
| 1095 | #endif |
| 1096 | } |
| 1097 | else |
| 1098 | { |
| 1099 | for (i=0;i<frame_size;i++) |
| 1100 | short_dst[i*dst_stride+dst_channel] = 0; |
| 1101 | } |
| 1102 | } |
| 1103 | |
| 1104 | |
| 1105 | |
| 1106 | #ifdef FIXED_POINT |
| 1107 | int opus_multistream_decode( |
| 1108 | OpusMSDecoder *st, |
| 1109 | const unsigned char *data, |
| 1110 | opus_int32 len, |
| 1111 | opus_int16 *pcm, |
| 1112 | int frame_size, |
| 1113 | int decode_fec |
| 1114 | ) |
| 1115 | { |
| 1116 | return opus_multistream_decode_native(st, data, len, |
| 1117 | pcm, opus_copy_channel_out_short, frame_size, decode_fec); |
| 1118 | } |
| 1119 | |
| 1120 | #ifndef DISABLE_FLOAT_API |
| 1121 | int opus_multistream_decode_float(OpusMSDecoder *st, const unsigned char *data, |
| 1122 | opus_int32 len, float *pcm, int frame_size, int decode_fec) |
| 1123 | { |
| 1124 | return opus_multistream_decode_native(st, data, len, |
| 1125 | pcm, opus_copy_channel_out_float, frame_size, decode_fec); |
| 1126 | } |
| 1127 | #endif |
| 1128 | |
| 1129 | #else |
| 1130 | |
| 1131 | int opus_multistream_decode(OpusMSDecoder *st, const unsigned char *data, |
| 1132 | opus_int32 len, opus_int16 *pcm, int frame_size, int decode_fec) |
| 1133 | { |
| 1134 | return opus_multistream_decode_native(st, data, len, |
| 1135 | pcm, opus_copy_channel_out_short, frame_size, decode_fec); |
| 1136 | } |
| 1137 | |
| 1138 | int opus_multistream_decode_float( |
| 1139 | OpusMSDecoder *st, |
| 1140 | const unsigned char *data, |
| 1141 | opus_int32 len, |
| 1142 | float *pcm, |
| 1143 | int frame_size, |
| 1144 | int decode_fec |
| 1145 | ) |
| 1146 | { |
| 1147 | return opus_multistream_decode_native(st, data, len, |
| 1148 | pcm, opus_copy_channel_out_float, frame_size, decode_fec); |
| 1149 | } |
| 1150 | #endif |
| 1151 | |
| 1152 | int opus_multistream_decoder_ctl(OpusMSDecoder *st, int request, ...) |
| 1153 | { |
| 1154 | va_list ap; |
| 1155 | int coupled_size, mono_size; |
| 1156 | char *ptr; |
| 1157 | int ret = OPUS_OK; |
| 1158 | |
| 1159 | va_start(ap, request); |
| 1160 | |
| 1161 | coupled_size = opus_decoder_get_size(2); |
| 1162 | mono_size = opus_decoder_get_size(1); |
| 1163 | ptr = (char*)st + align(sizeof(OpusMSDecoder)); |
| 1164 | switch (request) |
| 1165 | { |
| 1166 | case OPUS_GET_BANDWIDTH_REQUEST: |
| 1167 | case OPUS_GET_SAMPLE_RATE_REQUEST: |
| 1168 | { |
| 1169 | OpusDecoder *dec; |
| 1170 | /* For int32* GET params, just query the first stream */ |
| 1171 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 1172 | dec = (OpusDecoder*)ptr; |
| 1173 | ret = opus_decoder_ctl(dec, request, value); |
| 1174 | } |
| 1175 | break; |
| 1176 | case OPUS_GET_FINAL_RANGE_REQUEST: |
| 1177 | { |
| 1178 | int s; |
| 1179 | opus_uint32 *value = va_arg(ap, opus_uint32*); |
| 1180 | opus_uint32 tmp; |
| 1181 | *value = 0; |
| 1182 | for (s=0;s<st->layout.nb_streams;s++) |
| 1183 | { |
| 1184 | OpusDecoder *dec; |
| 1185 | dec = (OpusDecoder*)ptr; |
| 1186 | if (s < st->layout.nb_coupled_streams) |
| 1187 | ptr += align(coupled_size); |
| 1188 | else |
| 1189 | ptr += align(mono_size); |
| 1190 | ret = opus_decoder_ctl(dec, request, &tmp); |
| 1191 | if (ret != OPUS_OK) break; |
| 1192 | *value ^= tmp; |
| 1193 | } |
| 1194 | } |
| 1195 | break; |
| 1196 | case OPUS_RESET_STATE: |
| 1197 | { |
| 1198 | int s; |
| 1199 | for (s=0;s<st->layout.nb_streams;s++) |
| 1200 | { |
| 1201 | OpusDecoder *dec; |
| 1202 | |
| 1203 | dec = (OpusDecoder*)ptr; |
| 1204 | if (s < st->layout.nb_coupled_streams) |
| 1205 | ptr += align(coupled_size); |
| 1206 | else |
| 1207 | ptr += align(mono_size); |
| 1208 | ret = opus_decoder_ctl(dec, OPUS_RESET_STATE); |
| 1209 | if (ret != OPUS_OK) |
| 1210 | break; |
| 1211 | } |
| 1212 | } |
| 1213 | break; |
| 1214 | case OPUS_MULTISTREAM_GET_DECODER_STATE_REQUEST: |
| 1215 | { |
| 1216 | int s; |
| 1217 | opus_int32 stream_id; |
| 1218 | OpusDecoder **value; |
| 1219 | stream_id = va_arg(ap, opus_int32); |
| 1220 | if (stream_id<0 || stream_id >= st->layout.nb_streams) |
| 1221 | ret = OPUS_BAD_ARG; |
| 1222 | value = va_arg(ap, OpusDecoder**); |
| 1223 | for (s=0;s<stream_id;s++) |
| 1224 | { |
| 1225 | if (s < st->layout.nb_coupled_streams) |
| 1226 | ptr += align(coupled_size); |
| 1227 | else |
| 1228 | ptr += align(mono_size); |
| 1229 | } |
| 1230 | *value = (OpusDecoder*)ptr; |
| 1231 | } |
| 1232 | break; |
| 1233 | case OPUS_SET_GAIN_REQUEST: |
| 1234 | { |
| 1235 | int s; |
| 1236 | /* This works for int32 params */ |
| 1237 | opus_int32 value = va_arg(ap, opus_int32); |
| 1238 | for (s=0;s<st->layout.nb_streams;s++) |
| 1239 | { |
| 1240 | OpusDecoder *dec; |
| 1241 | |
| 1242 | dec = (OpusDecoder*)ptr; |
| 1243 | if (s < st->layout.nb_coupled_streams) |
| 1244 | ptr += align(coupled_size); |
| 1245 | else |
| 1246 | ptr += align(mono_size); |
| 1247 | ret = opus_decoder_ctl(dec, request, value); |
| 1248 | if (ret != OPUS_OK) |
| 1249 | break; |
| 1250 | } |
| 1251 | } |
| 1252 | break; |
| 1253 | default: |
| 1254 | ret = OPUS_UNIMPLEMENTED; |
| 1255 | break; |
| 1256 | } |
| 1257 | |
| 1258 | va_end(ap); |
| 1259 | return ret; |
| 1260 | } |
| 1261 | |
| 1262 | |
| 1263 | void opus_multistream_decoder_destroy(OpusMSDecoder *st) |
| 1264 | { |
| 1265 | opus_free(st); |
| 1266 | } |