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 | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 40 | |
| 41 | struct OpusMSEncoder { |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 42 | TonalityAnalysisState analysis; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 43 | ChannelLayout layout; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 44 | int lfe_stream; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 45 | int variable_duration; |
| 46 | opus_int32 bitrate_bps; |
| 47 | opus_val32 subframe_mem[3]; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 48 | /* Encoder states go here */ |
| 49 | }; |
| 50 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 51 | |
| 52 | static int validate_encoder_layout(const ChannelLayout *layout) |
| 53 | { |
| 54 | int s; |
| 55 | for (s=0;s<layout->nb_streams;s++) |
| 56 | { |
| 57 | if (s < layout->nb_coupled_streams) |
| 58 | { |
| 59 | if (get_left_channel(layout, s, -1)==-1) |
| 60 | return 0; |
| 61 | if (get_right_channel(layout, s, -1)==-1) |
| 62 | return 0; |
| 63 | } else { |
| 64 | if (get_mono_channel(layout, s, -1)==-1) |
| 65 | return 0; |
| 66 | } |
| 67 | } |
| 68 | return 1; |
| 69 | } |
| 70 | |
| 71 | |
| 72 | opus_int32 opus_multistream_encoder_get_size(int nb_streams, int nb_coupled_streams) |
| 73 | { |
| 74 | int coupled_size; |
| 75 | int mono_size; |
| 76 | |
| 77 | if(nb_streams<1||nb_coupled_streams>nb_streams||nb_coupled_streams<0)return 0; |
| 78 | coupled_size = opus_encoder_get_size(2); |
| 79 | mono_size = opus_encoder_get_size(1); |
| 80 | return align(sizeof(OpusMSEncoder)) |
| 81 | + nb_coupled_streams * align(coupled_size) |
| 82 | + (nb_streams-nb_coupled_streams) * align(mono_size); |
| 83 | } |
| 84 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 85 | opus_int32 opus_multistream_surround_encoder_get_size(int channels, int mapping_family) |
| 86 | { |
| 87 | int nb_streams; |
| 88 | int nb_coupled_streams; |
| 89 | |
| 90 | if (channels==1 && mapping_family<=1) |
| 91 | { |
| 92 | nb_streams = 1; |
| 93 | nb_coupled_streams=0; |
| 94 | } else if (channels==2 && mapping_family<=1) |
| 95 | { |
| 96 | nb_streams = 1; |
| 97 | nb_coupled_streams=1; |
| 98 | } else if (channels==6 && mapping_family==1) |
| 99 | { |
| 100 | nb_streams = 4; |
| 101 | nb_coupled_streams=2; |
| 102 | } else |
| 103 | return 0; |
| 104 | return opus_multistream_encoder_get_size(nb_streams, nb_coupled_streams); |
| 105 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 106 | |
| 107 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 108 | static int opus_multistream_encoder_init_impl( |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 109 | OpusMSEncoder *st, |
| 110 | opus_int32 Fs, |
| 111 | int channels, |
| 112 | int streams, |
| 113 | int coupled_streams, |
| 114 | const unsigned char *mapping, |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 115 | int application, |
| 116 | int surround |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 117 | ) |
| 118 | { |
| 119 | int coupled_size; |
| 120 | int mono_size; |
| 121 | int i, ret; |
| 122 | char *ptr; |
| 123 | |
| 124 | if ((channels>255) || (channels<1) || (coupled_streams>streams) || |
| 125 | (coupled_streams+streams>255) || (streams<1) || (coupled_streams<0)) |
| 126 | return OPUS_BAD_ARG; |
| 127 | |
| 128 | st->layout.nb_channels = channels; |
| 129 | st->layout.nb_streams = streams; |
| 130 | st->layout.nb_coupled_streams = coupled_streams; |
Jean-Marc Valin | b042935 | 2013-05-05 02:22:06 -0400 | [diff] [blame] | 131 | st->subframe_mem[0]=st->subframe_mem[1]=st->subframe_mem[2]=0; |
| 132 | OPUS_CLEAR(&st->analysis,1); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 133 | if (!surround) |
| 134 | st->lfe_stream = -1; |
Jean-Marc Valin | 95561be | 2012-12-17 17:54:01 -0500 | [diff] [blame] | 135 | st->bitrate_bps = OPUS_AUTO; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 136 | st->variable_duration = OPUS_FRAMESIZE_ARG; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 137 | for (i=0;i<st->layout.nb_channels;i++) |
| 138 | st->layout.mapping[i] = mapping[i]; |
| 139 | if (!validate_layout(&st->layout) || !validate_encoder_layout(&st->layout)) |
| 140 | return OPUS_BAD_ARG; |
| 141 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 142 | coupled_size = opus_encoder_get_size(2); |
| 143 | mono_size = opus_encoder_get_size(1); |
| 144 | |
| 145 | for (i=0;i<st->layout.nb_coupled_streams;i++) |
| 146 | { |
| 147 | ret = opus_encoder_init((OpusEncoder*)ptr, Fs, 2, application); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 148 | if (i==st->lfe_stream) |
| 149 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_SET_LFE(1)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 150 | if(ret!=OPUS_OK)return ret; |
| 151 | ptr += align(coupled_size); |
| 152 | } |
| 153 | for (;i<st->layout.nb_streams;i++) |
| 154 | { |
| 155 | ret = opus_encoder_init((OpusEncoder*)ptr, Fs, 1, application); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 156 | if (i==st->lfe_stream) |
| 157 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_SET_LFE(1)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 158 | if(ret!=OPUS_OK)return ret; |
| 159 | ptr += align(mono_size); |
| 160 | } |
| 161 | return OPUS_OK; |
| 162 | } |
| 163 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 164 | int opus_multistream_encoder_init( |
| 165 | OpusMSEncoder *st, |
| 166 | opus_int32 Fs, |
| 167 | int channels, |
| 168 | int streams, |
| 169 | int coupled_streams, |
| 170 | const unsigned char *mapping, |
| 171 | int application |
| 172 | ) |
| 173 | { |
| 174 | return opus_multistream_encoder_init_impl(st, Fs, channels, streams, coupled_streams, mapping, application, 0); |
| 175 | } |
| 176 | |
| 177 | int opus_multistream_surround_encoder_init( |
| 178 | OpusMSEncoder *st, |
| 179 | opus_int32 Fs, |
| 180 | int channels, |
| 181 | int mapping_family, |
| 182 | int *streams, |
| 183 | int *coupled_streams, |
| 184 | unsigned char *mapping, |
| 185 | int application |
| 186 | ) |
| 187 | { |
| 188 | st->lfe_stream = -1; |
| 189 | if (channels==1 && mapping_family<=1) |
| 190 | { |
| 191 | *streams=1; |
| 192 | *coupled_streams=0; |
| 193 | mapping[0]=0; |
| 194 | } else if (channels==2 && mapping_family<=1) |
| 195 | { |
| 196 | *streams=1; |
| 197 | *coupled_streams=1; |
| 198 | mapping[0]=0; |
| 199 | mapping[1]=1; |
| 200 | } else if (channels==6 && mapping_family==1) |
| 201 | { |
| 202 | *streams=4; |
| 203 | *coupled_streams=2; |
| 204 | mapping[0]=0; |
| 205 | mapping[1]=4; |
| 206 | mapping[2]=1; |
| 207 | mapping[3]=2; |
| 208 | mapping[4]=3; |
| 209 | mapping[5]=5; |
| 210 | st->lfe_stream = 3; |
| 211 | } else |
| 212 | return OPUS_BAD_ARG; |
| 213 | opus_multistream_encoder_init_impl(st, Fs, channels, *streams, *coupled_streams, mapping, application, 1); |
| 214 | return OPUS_OK; |
| 215 | } |
| 216 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 217 | OpusMSEncoder *opus_multistream_encoder_create( |
| 218 | opus_int32 Fs, |
| 219 | int channels, |
| 220 | int streams, |
| 221 | int coupled_streams, |
| 222 | const unsigned char *mapping, |
| 223 | int application, |
| 224 | int *error |
| 225 | ) |
| 226 | { |
| 227 | int ret; |
| 228 | OpusMSEncoder *st; |
| 229 | if ((channels>255) || (channels<1) || (coupled_streams>streams) || |
| 230 | (coupled_streams+streams>255) || (streams<1) || (coupled_streams<0)) |
| 231 | { |
| 232 | if (error) |
| 233 | *error = OPUS_BAD_ARG; |
| 234 | return NULL; |
| 235 | } |
| 236 | st = (OpusMSEncoder *)opus_alloc(opus_multistream_encoder_get_size(streams, coupled_streams)); |
| 237 | if (st==NULL) |
| 238 | { |
| 239 | if (error) |
| 240 | *error = OPUS_ALLOC_FAIL; |
| 241 | return NULL; |
| 242 | } |
| 243 | ret = opus_multistream_encoder_init(st, Fs, channels, streams, coupled_streams, mapping, application); |
| 244 | if (ret != OPUS_OK) |
| 245 | { |
| 246 | opus_free(st); |
| 247 | st = NULL; |
| 248 | } |
| 249 | if (error) |
| 250 | *error = ret; |
| 251 | return st; |
| 252 | } |
| 253 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 254 | OpusMSEncoder *opus_multistream_surround_encoder_create( |
| 255 | opus_int32 Fs, |
| 256 | int channels, |
| 257 | int mapping_family, |
| 258 | int *streams, |
| 259 | int *coupled_streams, |
| 260 | unsigned char *mapping, |
| 261 | int application, |
| 262 | int *error |
| 263 | ) |
| 264 | { |
| 265 | int ret; |
| 266 | OpusMSEncoder *st; |
| 267 | if ((channels>255) || (channels<1)) |
| 268 | { |
| 269 | if (error) |
| 270 | *error = OPUS_BAD_ARG; |
| 271 | return NULL; |
| 272 | } |
| 273 | st = (OpusMSEncoder *)opus_alloc(opus_multistream_surround_encoder_get_size(channels, mapping_family)); |
| 274 | if (st==NULL) |
| 275 | { |
| 276 | if (error) |
| 277 | *error = OPUS_ALLOC_FAIL; |
| 278 | return NULL; |
| 279 | } |
| 280 | ret = opus_multistream_surround_encoder_init(st, Fs, channels, mapping_family, streams, coupled_streams, mapping, application); |
| 281 | if (ret != OPUS_OK) |
| 282 | { |
| 283 | opus_free(st); |
| 284 | st = NULL; |
| 285 | } |
| 286 | if (error) |
| 287 | *error = ret; |
| 288 | return st; |
| 289 | } |
| 290 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 291 | typedef void (*opus_copy_channel_in_func)( |
| 292 | opus_val16 *dst, |
| 293 | int dst_stride, |
| 294 | const void *src, |
| 295 | int src_stride, |
| 296 | int src_channel, |
| 297 | int frame_size |
| 298 | ); |
| 299 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 300 | static void surround_rate_allocation( |
| 301 | OpusMSEncoder *st, |
| 302 | opus_int32 *rate, |
| 303 | int frame_size |
| 304 | ) |
| 305 | { |
| 306 | int i; |
| 307 | opus_int32 channel_rate; |
| 308 | opus_int32 Fs; |
| 309 | char *ptr; |
| 310 | int coupled_ratio; /* Q8 */ |
| 311 | int lfe_ratio; /* Q8 */ |
| 312 | |
| 313 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 314 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_SAMPLE_RATE(&Fs)); |
| 315 | |
| 316 | /* Should depend on the bitrate, for now we assume coupled streams get 60% more bits than mono */ |
| 317 | coupled_ratio = 410; |
| 318 | /* Should depend on the bitrate, for now we assume LFE gets 1/12 the bits of mono */ |
| 319 | lfe_ratio = 32; |
| 320 | |
| 321 | /* Compute bitrate allocation between streams */ |
| 322 | if (st->bitrate_bps==OPUS_AUTO) |
| 323 | { |
| 324 | channel_rate = Fs+60*Fs/frame_size; |
| 325 | } else if (st->bitrate_bps==OPUS_BITRATE_MAX) |
| 326 | { |
| 327 | channel_rate = 300000; |
| 328 | } else { |
| 329 | int total = ((st->layout.nb_streams-st->layout.nb_coupled_streams-(st->lfe_stream!=-1))<<8) /* mono */ |
| 330 | + coupled_ratio*st->layout.nb_coupled_streams /* stereo */ |
| 331 | + (st->lfe_stream!=-1)*lfe_ratio; |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 332 | channel_rate = 256*(st->bitrate_bps-2000)/total; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 333 | } |
| 334 | #ifndef FIXED_POINT |
| 335 | if (st->variable_duration==OPUS_FRAMESIZE_VARIABLE && frame_size != Fs/50) |
| 336 | { |
| 337 | opus_int32 bonus; |
| 338 | bonus = 60*(Fs/frame_size-50); |
| 339 | channel_rate += bonus; |
| 340 | } |
| 341 | #endif |
| 342 | |
| 343 | for (i=0;i<st->layout.nb_streams;i++) |
| 344 | { |
| 345 | if (i<st->layout.nb_coupled_streams) |
| 346 | rate[i] = channel_rate*coupled_ratio>>8; |
| 347 | else if (i!=st->lfe_stream) |
| 348 | rate[i] = channel_rate; |
| 349 | else |
Jean-Marc Valin | b08c4ca | 2013-04-26 16:32:10 -0400 | [diff] [blame] | 350 | rate[i] = 2000+(channel_rate*lfe_ratio>>8); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 351 | } |
| 352 | |
| 353 | |
| 354 | } |
| 355 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 356 | /* Max size in case the encoder decides to return three frames */ |
| 357 | #define MS_FRAME_TMP (3*1275+7) |
| 358 | static int opus_multistream_encode_native |
| 359 | ( |
| 360 | OpusMSEncoder *st, |
| 361 | opus_copy_channel_in_func copy_channel_in, |
| 362 | const void *pcm, |
| 363 | int frame_size, |
| 364 | unsigned char *data, |
Jean-Marc Valin | b3eba24 | 2012-12-20 23:11:53 -0500 | [diff] [blame] | 365 | opus_int32 max_data_bytes, |
| 366 | int lsb_depth |
Jean-Marc Valin | 10a34a5 | 2012-12-20 00:23:01 -0500 | [diff] [blame] | 367 | #ifndef FIXED_POINT |
| 368 | , downmix_func downmix |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 369 | , const void *pcm_analysis |
Jean-Marc Valin | 10a34a5 | 2012-12-20 00:23:01 -0500 | [diff] [blame] | 370 | #endif |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 371 | ) |
| 372 | { |
| 373 | opus_int32 Fs; |
| 374 | int coupled_size; |
| 375 | int mono_size; |
| 376 | int s; |
| 377 | char *ptr; |
| 378 | int tot_size; |
| 379 | VARDECL(opus_val16, buf); |
| 380 | unsigned char tmp_data[MS_FRAME_TMP]; |
| 381 | OpusRepacketizer rp; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 382 | opus_int32 complexity; |
| 383 | AnalysisInfo analysis_info; |
| 384 | const CELTMode *celt_mode; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 385 | opus_int32 bitrates[256]; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 386 | ALLOC_STACK; |
| 387 | |
| 388 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 389 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_SAMPLE_RATE(&Fs)); |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 390 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_COMPLEXITY(&complexity)); |
| 391 | opus_encoder_ctl((OpusEncoder*)ptr, CELT_GET_MODE(&celt_mode)); |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 392 | |
| 393 | if (400*frame_size < Fs) |
| 394 | { |
| 395 | RESTORE_STACK; |
| 396 | return OPUS_BAD_ARG; |
| 397 | } |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 398 | #ifndef FIXED_POINT |
| 399 | analysis_info.valid = 0; |
| 400 | if (complexity >= 7 && Fs==48000) |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 401 | { |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 402 | opus_int32 delay_compensation; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 403 | int channels; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 404 | |
| 405 | channels = st->layout.nb_streams + st->layout.nb_coupled_streams; |
| 406 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_LOOKAHEAD(&delay_compensation)); |
| 407 | delay_compensation -= Fs/400; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 408 | |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 409 | frame_size = run_analysis(&st->analysis, celt_mode, pcm, pcm_analysis, |
| 410 | frame_size, st->variable_duration, channels, Fs, st->bitrate_bps, delay_compensation, lsb_depth, downmix, &analysis_info); |
| 411 | } else |
| 412 | #endif |
| 413 | { |
| 414 | frame_size = frame_size_select(frame_size, st->variable_duration, Fs); |
| 415 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 416 | /* Validate frame_size before using it to allocate stack space. |
| 417 | This mirrors the checks in opus_encode[_float](). */ |
| 418 | if (400*frame_size != Fs && 200*frame_size != Fs && |
| 419 | 100*frame_size != Fs && 50*frame_size != Fs && |
| 420 | 25*frame_size != Fs && 50*frame_size != 3*Fs) |
| 421 | { |
| 422 | RESTORE_STACK; |
| 423 | return OPUS_BAD_ARG; |
| 424 | } |
| 425 | ALLOC(buf, 2*frame_size, opus_val16); |
| 426 | coupled_size = opus_encoder_get_size(2); |
| 427 | mono_size = opus_encoder_get_size(1); |
| 428 | |
| 429 | if (max_data_bytes < 4*st->layout.nb_streams-1) |
| 430 | { |
| 431 | RESTORE_STACK; |
| 432 | return OPUS_BUFFER_TOO_SMALL; |
| 433 | } |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 434 | |
| 435 | /* Compute bitrate allocation between streams (this could be a lot better) */ |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 436 | surround_rate_allocation(st, bitrates, frame_size); |
| 437 | |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 438 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 439 | for (s=0;s<st->layout.nb_streams;s++) |
| 440 | { |
| 441 | OpusEncoder *enc; |
| 442 | enc = (OpusEncoder*)ptr; |
| 443 | if (s < st->layout.nb_coupled_streams) |
| 444 | ptr += align(coupled_size); |
| 445 | else |
| 446 | ptr += align(mono_size); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 447 | opus_encoder_ctl(enc, OPUS_SET_BITRATE(bitrates[s])); |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 448 | } |
| 449 | |
| 450 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 451 | /* Counting ToC */ |
| 452 | tot_size = 0; |
| 453 | for (s=0;s<st->layout.nb_streams;s++) |
| 454 | { |
| 455 | OpusEncoder *enc; |
| 456 | int len; |
| 457 | int curr_max; |
| 458 | |
| 459 | opus_repacketizer_init(&rp); |
| 460 | enc = (OpusEncoder*)ptr; |
| 461 | if (s < st->layout.nb_coupled_streams) |
| 462 | { |
| 463 | int left, right; |
| 464 | left = get_left_channel(&st->layout, s, -1); |
| 465 | right = get_right_channel(&st->layout, s, -1); |
| 466 | (*copy_channel_in)(buf, 2, |
| 467 | pcm, st->layout.nb_channels, left, frame_size); |
| 468 | (*copy_channel_in)(buf+1, 2, |
| 469 | pcm, st->layout.nb_channels, right, frame_size); |
| 470 | ptr += align(coupled_size); |
| 471 | } else { |
| 472 | int chan = get_mono_channel(&st->layout, s, -1); |
| 473 | (*copy_channel_in)(buf, 1, |
| 474 | pcm, st->layout.nb_channels, chan, frame_size); |
| 475 | ptr += align(mono_size); |
| 476 | } |
| 477 | /* number of bytes left (+Toc) */ |
| 478 | curr_max = max_data_bytes - tot_size; |
| 479 | /* Reserve three bytes for the last stream and four for the others */ |
| 480 | curr_max -= IMAX(0,4*(st->layout.nb_streams-s-1)-1); |
| 481 | curr_max = IMIN(curr_max,MS_FRAME_TMP); |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 482 | len = opus_encode_native(enc, buf, frame_size, tmp_data, curr_max, lsb_depth |
| 483 | #ifndef FIXED_POINT |
| 484 | , &analysis_info |
| 485 | #endif |
| 486 | ); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 487 | if (len<0) |
| 488 | { |
| 489 | RESTORE_STACK; |
| 490 | return len; |
| 491 | } |
| 492 | /* We need to use the repacketizer to add the self-delimiting lengths |
| 493 | while taking into account the fact that the encoder can now return |
| 494 | more than one frame at a time (e.g. 60 ms CELT-only) */ |
| 495 | opus_repacketizer_cat(&rp, tmp_data, len); |
| 496 | 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); |
| 497 | data += len; |
| 498 | tot_size += len; |
| 499 | } |
| 500 | RESTORE_STACK; |
| 501 | return tot_size; |
| 502 | |
| 503 | } |
| 504 | |
| 505 | #if !defined(DISABLE_FLOAT_API) |
| 506 | static void opus_copy_channel_in_float( |
| 507 | opus_val16 *dst, |
| 508 | int dst_stride, |
| 509 | const void *src, |
| 510 | int src_stride, |
| 511 | int src_channel, |
| 512 | int frame_size |
| 513 | ) |
| 514 | { |
| 515 | const float *float_src; |
Timothy B. Terriberry | a8f04b2 | 2013-03-18 14:42:44 -0700 | [diff] [blame] | 516 | opus_int32 i; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 517 | float_src = (const float *)src; |
| 518 | for (i=0;i<frame_size;i++) |
| 519 | #if defined(FIXED_POINT) |
| 520 | dst[i*dst_stride] = FLOAT2INT16(float_src[i*src_stride+src_channel]); |
| 521 | #else |
| 522 | dst[i*dst_stride] = float_src[i*src_stride+src_channel]; |
| 523 | #endif |
| 524 | } |
| 525 | #endif |
| 526 | |
| 527 | static void opus_copy_channel_in_short( |
| 528 | opus_val16 *dst, |
| 529 | int dst_stride, |
| 530 | const void *src, |
| 531 | int src_stride, |
| 532 | int src_channel, |
| 533 | int frame_size |
| 534 | ) |
| 535 | { |
| 536 | const opus_int16 *short_src; |
Timothy B. Terriberry | a8f04b2 | 2013-03-18 14:42:44 -0700 | [diff] [blame] | 537 | opus_int32 i; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 538 | short_src = (const opus_int16 *)src; |
| 539 | for (i=0;i<frame_size;i++) |
| 540 | #if defined(FIXED_POINT) |
| 541 | dst[i*dst_stride] = short_src[i*src_stride+src_channel]; |
| 542 | #else |
| 543 | dst[i*dst_stride] = (1/32768.f)*short_src[i*src_stride+src_channel]; |
| 544 | #endif |
| 545 | } |
| 546 | |
| 547 | #ifdef FIXED_POINT |
| 548 | int opus_multistream_encode( |
| 549 | OpusMSEncoder *st, |
| 550 | const opus_val16 *pcm, |
| 551 | int frame_size, |
| 552 | unsigned char *data, |
| 553 | opus_int32 max_data_bytes |
| 554 | ) |
| 555 | { |
| 556 | return opus_multistream_encode_native(st, opus_copy_channel_in_short, |
Jean-Marc Valin | b3eba24 | 2012-12-20 23:11:53 -0500 | [diff] [blame] | 557 | pcm, frame_size, data, max_data_bytes, 16); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 558 | } |
| 559 | |
| 560 | #ifndef DISABLE_FLOAT_API |
| 561 | int opus_multistream_encode_float( |
| 562 | OpusMSEncoder *st, |
| 563 | const float *pcm, |
| 564 | int frame_size, |
| 565 | unsigned char *data, |
| 566 | opus_int32 max_data_bytes |
| 567 | ) |
| 568 | { |
| 569 | return opus_multistream_encode_native(st, opus_copy_channel_in_float, |
Jean-Marc Valin | b3eba24 | 2012-12-20 23:11:53 -0500 | [diff] [blame] | 570 | pcm, frame_size, data, max_data_bytes, 16); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 571 | } |
| 572 | #endif |
| 573 | |
| 574 | #else |
| 575 | |
| 576 | int opus_multistream_encode_float |
| 577 | ( |
| 578 | OpusMSEncoder *st, |
| 579 | const opus_val16 *pcm, |
| 580 | int frame_size, |
| 581 | unsigned char *data, |
| 582 | opus_int32 max_data_bytes |
| 583 | ) |
| 584 | { |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 585 | int channels = st->layout.nb_streams + st->layout.nb_coupled_streams; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 586 | return opus_multistream_encode_native(st, opus_copy_channel_in_float, |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 587 | pcm, frame_size, data, max_data_bytes, 24, downmix_float, pcm+channels*st->analysis.analysis_offset); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 588 | } |
| 589 | |
| 590 | int opus_multistream_encode( |
| 591 | OpusMSEncoder *st, |
| 592 | const opus_int16 *pcm, |
| 593 | int frame_size, |
| 594 | unsigned char *data, |
| 595 | opus_int32 max_data_bytes |
| 596 | ) |
| 597 | { |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 598 | int channels = st->layout.nb_streams + st->layout.nb_coupled_streams; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 599 | return opus_multistream_encode_native(st, opus_copy_channel_in_short, |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 600 | pcm, frame_size, data, max_data_bytes, 16, downmix_int, pcm+channels*st->analysis.analysis_offset); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 601 | } |
| 602 | #endif |
| 603 | |
| 604 | int opus_multistream_encoder_ctl(OpusMSEncoder *st, int request, ...) |
| 605 | { |
| 606 | va_list ap; |
| 607 | int coupled_size, mono_size; |
| 608 | char *ptr; |
| 609 | int ret = OPUS_OK; |
| 610 | |
| 611 | va_start(ap, request); |
| 612 | |
| 613 | coupled_size = opus_encoder_get_size(2); |
| 614 | mono_size = opus_encoder_get_size(1); |
| 615 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 616 | switch (request) |
| 617 | { |
| 618 | case OPUS_SET_BITRATE_REQUEST: |
| 619 | { |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 620 | opus_int32 value = va_arg(ap, opus_int32); |
Jean-Marc Valin | 95561be | 2012-12-17 17:54:01 -0500 | [diff] [blame] | 621 | if (value<0 && value!=OPUS_AUTO && value!=OPUS_BITRATE_MAX) |
| 622 | goto bad_arg; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 623 | st->bitrate_bps = value; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 624 | } |
| 625 | break; |
| 626 | case OPUS_GET_BITRATE_REQUEST: |
| 627 | { |
| 628 | int s; |
| 629 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 630 | *value = 0; |
| 631 | for (s=0;s<st->layout.nb_streams;s++) |
| 632 | { |
| 633 | opus_int32 rate; |
| 634 | OpusEncoder *enc; |
| 635 | enc = (OpusEncoder*)ptr; |
| 636 | if (s < st->layout.nb_coupled_streams) |
| 637 | ptr += align(coupled_size); |
| 638 | else |
| 639 | ptr += align(mono_size); |
| 640 | opus_encoder_ctl(enc, request, &rate); |
| 641 | *value += rate; |
| 642 | } |
| 643 | } |
| 644 | break; |
| 645 | case OPUS_GET_LSB_DEPTH_REQUEST: |
| 646 | case OPUS_GET_VBR_REQUEST: |
| 647 | case OPUS_GET_APPLICATION_REQUEST: |
| 648 | case OPUS_GET_BANDWIDTH_REQUEST: |
| 649 | case OPUS_GET_COMPLEXITY_REQUEST: |
| 650 | case OPUS_GET_PACKET_LOSS_PERC_REQUEST: |
| 651 | case OPUS_GET_DTX_REQUEST: |
| 652 | case OPUS_GET_VOICE_RATIO_REQUEST: |
| 653 | case OPUS_GET_VBR_CONSTRAINT_REQUEST: |
| 654 | case OPUS_GET_SIGNAL_REQUEST: |
| 655 | case OPUS_GET_LOOKAHEAD_REQUEST: |
| 656 | case OPUS_GET_SAMPLE_RATE_REQUEST: |
| 657 | case OPUS_GET_INBAND_FEC_REQUEST: |
| 658 | case OPUS_GET_FORCE_CHANNELS_REQUEST: |
| 659 | { |
| 660 | OpusEncoder *enc; |
| 661 | /* For int32* GET params, just query the first stream */ |
| 662 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 663 | enc = (OpusEncoder*)ptr; |
| 664 | ret = opus_encoder_ctl(enc, request, value); |
| 665 | } |
| 666 | break; |
| 667 | case OPUS_GET_FINAL_RANGE_REQUEST: |
| 668 | { |
| 669 | int s; |
| 670 | opus_uint32 *value = va_arg(ap, opus_uint32*); |
| 671 | opus_uint32 tmp; |
| 672 | *value=0; |
| 673 | for (s=0;s<st->layout.nb_streams;s++) |
| 674 | { |
| 675 | OpusEncoder *enc; |
| 676 | enc = (OpusEncoder*)ptr; |
| 677 | if (s < st->layout.nb_coupled_streams) |
| 678 | ptr += align(coupled_size); |
| 679 | else |
| 680 | ptr += align(mono_size); |
| 681 | ret = opus_encoder_ctl(enc, request, &tmp); |
| 682 | if (ret != OPUS_OK) break; |
| 683 | *value ^= tmp; |
| 684 | } |
| 685 | } |
| 686 | break; |
| 687 | case OPUS_SET_LSB_DEPTH_REQUEST: |
| 688 | case OPUS_SET_COMPLEXITY_REQUEST: |
| 689 | case OPUS_SET_VBR_REQUEST: |
| 690 | case OPUS_SET_VBR_CONSTRAINT_REQUEST: |
| 691 | case OPUS_SET_BANDWIDTH_REQUEST: |
| 692 | case OPUS_SET_SIGNAL_REQUEST: |
| 693 | case OPUS_SET_APPLICATION_REQUEST: |
| 694 | case OPUS_SET_INBAND_FEC_REQUEST: |
| 695 | case OPUS_SET_PACKET_LOSS_PERC_REQUEST: |
| 696 | case OPUS_SET_DTX_REQUEST: |
| 697 | case OPUS_SET_FORCE_MODE_REQUEST: |
| 698 | case OPUS_SET_FORCE_CHANNELS_REQUEST: |
| 699 | { |
| 700 | int s; |
| 701 | /* This works for int32 params */ |
| 702 | opus_int32 value = va_arg(ap, opus_int32); |
| 703 | for (s=0;s<st->layout.nb_streams;s++) |
| 704 | { |
| 705 | OpusEncoder *enc; |
| 706 | |
| 707 | enc = (OpusEncoder*)ptr; |
| 708 | if (s < st->layout.nb_coupled_streams) |
| 709 | ptr += align(coupled_size); |
| 710 | else |
| 711 | ptr += align(mono_size); |
| 712 | ret = opus_encoder_ctl(enc, request, value); |
| 713 | if (ret != OPUS_OK) |
| 714 | break; |
| 715 | } |
| 716 | } |
| 717 | break; |
| 718 | case OPUS_MULTISTREAM_GET_ENCODER_STATE_REQUEST: |
| 719 | { |
| 720 | int s; |
| 721 | opus_int32 stream_id; |
| 722 | OpusEncoder **value; |
| 723 | stream_id = va_arg(ap, opus_int32); |
| 724 | if (stream_id<0 || stream_id >= st->layout.nb_streams) |
| 725 | ret = OPUS_BAD_ARG; |
| 726 | value = va_arg(ap, OpusEncoder**); |
| 727 | for (s=0;s<stream_id;s++) |
| 728 | { |
| 729 | if (s < st->layout.nb_coupled_streams) |
| 730 | ptr += align(coupled_size); |
| 731 | else |
| 732 | ptr += align(mono_size); |
| 733 | } |
| 734 | *value = (OpusEncoder*)ptr; |
| 735 | } |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 736 | break; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 737 | case OPUS_SET_EXPERT_FRAME_DURATION_REQUEST: |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 738 | { |
| 739 | opus_int32 value = va_arg(ap, opus_int32); |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 740 | st->variable_duration = value; |
| 741 | } |
| 742 | break; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 743 | case OPUS_GET_EXPERT_FRAME_DURATION_REQUEST: |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 744 | { |
| 745 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 746 | *value = st->variable_duration; |
| 747 | } |
| 748 | break; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 749 | default: |
| 750 | ret = OPUS_UNIMPLEMENTED; |
| 751 | break; |
| 752 | } |
| 753 | |
| 754 | va_end(ap); |
| 755 | return ret; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 756 | bad_arg: |
| 757 | va_end(ap); |
| 758 | return OPUS_BAD_ARG; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 759 | } |
| 760 | |
| 761 | void opus_multistream_encoder_destroy(OpusMSEncoder *st) |
| 762 | { |
| 763 | opus_free(st); |
| 764 | } |
| 765 | |
| 766 | |