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 | |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 41 | typedef struct { |
| 42 | int nb_streams; |
| 43 | int nb_coupled_streams; |
| 44 | unsigned char mapping[8]; |
| 45 | } VorbisLayout; |
| 46 | |
| 47 | /* Index is nb_channel-1*/ |
| 48 | static const VorbisLayout vorbis_mappings[8] = { |
| 49 | {1, 0, {0}}, /* 1: mono */ |
| 50 | {1, 1, {0, 1}}, /* 2: stereo */ |
| 51 | {2, 1, {0, 2, 1}}, /* 3: 1-d surround */ |
| 52 | {2, 2, {0, 1, 2, 3}}, /* 4: quadraphonic surround */ |
| 53 | {3, 2, {0, 4, 1, 2, 3}}, /* 5: 5-channel surround */ |
| 54 | {4, 2, {0, 4, 1, 2, 3, 5}}, /* 6: 5.1 surround */ |
| 55 | {4, 3, {0, 4, 1, 2, 3, 5, 6}}, /* 7: 6.1 surround */ |
| 56 | {5, 3, {0, 6, 1, 2, 3, 4, 5, 7}}, /* 8: 7.1 surround */ |
| 57 | }; |
| 58 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 59 | struct OpusMSEncoder { |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 60 | TonalityAnalysisState analysis; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 61 | ChannelLayout layout; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 62 | int lfe_stream; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 63 | int variable_duration; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 64 | int surround; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 65 | opus_int32 bitrate_bps; |
| 66 | opus_val32 subframe_mem[3]; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 67 | /* Encoder states go here */ |
| 68 | }; |
| 69 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 70 | |
| 71 | static int validate_encoder_layout(const ChannelLayout *layout) |
| 72 | { |
| 73 | int s; |
| 74 | for (s=0;s<layout->nb_streams;s++) |
| 75 | { |
| 76 | if (s < layout->nb_coupled_streams) |
| 77 | { |
| 78 | if (get_left_channel(layout, s, -1)==-1) |
| 79 | return 0; |
| 80 | if (get_right_channel(layout, s, -1)==-1) |
| 81 | return 0; |
| 82 | } else { |
| 83 | if (get_mono_channel(layout, s, -1)==-1) |
| 84 | return 0; |
| 85 | } |
| 86 | } |
| 87 | return 1; |
| 88 | } |
| 89 | |
| 90 | |
| 91 | opus_int32 opus_multistream_encoder_get_size(int nb_streams, int nb_coupled_streams) |
| 92 | { |
| 93 | int coupled_size; |
| 94 | int mono_size; |
| 95 | |
| 96 | if(nb_streams<1||nb_coupled_streams>nb_streams||nb_coupled_streams<0)return 0; |
| 97 | coupled_size = opus_encoder_get_size(2); |
| 98 | mono_size = opus_encoder_get_size(1); |
| 99 | return align(sizeof(OpusMSEncoder)) |
| 100 | + nb_coupled_streams * align(coupled_size) |
| 101 | + (nb_streams-nb_coupled_streams) * align(mono_size); |
| 102 | } |
| 103 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 104 | opus_int32 opus_multistream_surround_encoder_get_size(int channels, int mapping_family) |
| 105 | { |
| 106 | int nb_streams; |
| 107 | int nb_coupled_streams; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 108 | opus_int32 size; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 109 | |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 110 | if (mapping_family==0) |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 111 | { |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 112 | if (channels==1) |
| 113 | { |
| 114 | nb_streams=1; |
| 115 | nb_coupled_streams=0; |
| 116 | } else if (channels==2) |
| 117 | { |
| 118 | nb_streams=1; |
| 119 | nb_coupled_streams=1; |
| 120 | } else |
| 121 | return 0; |
| 122 | } else if (mapping_family==1 && channels<=8 && channels>=1) |
| 123 | { |
| 124 | nb_streams=vorbis_mappings[channels-1].nb_streams; |
| 125 | nb_coupled_streams=vorbis_mappings[channels-1].nb_coupled_streams; |
| 126 | } else if (mapping_family==255) |
| 127 | { |
| 128 | nb_streams=channels; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 129 | nb_coupled_streams=0; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 130 | } else |
| 131 | return 0; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 132 | size = opus_multistream_encoder_get_size(nb_streams, nb_coupled_streams); |
| 133 | if (channels>2) |
| 134 | size += align(opus_encoder_get_size(2)); |
| 135 | return size; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 136 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 137 | |
| 138 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 139 | static int opus_multistream_encoder_init_impl( |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 140 | OpusMSEncoder *st, |
| 141 | opus_int32 Fs, |
| 142 | int channels, |
| 143 | int streams, |
| 144 | int coupled_streams, |
| 145 | const unsigned char *mapping, |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 146 | int application, |
| 147 | int surround |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 148 | ) |
| 149 | { |
| 150 | int coupled_size; |
| 151 | int mono_size; |
| 152 | int i, ret; |
| 153 | char *ptr; |
| 154 | |
| 155 | if ((channels>255) || (channels<1) || (coupled_streams>streams) || |
| 156 | (coupled_streams+streams>255) || (streams<1) || (coupled_streams<0)) |
| 157 | return OPUS_BAD_ARG; |
| 158 | |
| 159 | st->layout.nb_channels = channels; |
| 160 | st->layout.nb_streams = streams; |
| 161 | st->layout.nb_coupled_streams = coupled_streams; |
Jean-Marc Valin | b042935 | 2013-05-05 02:22:06 -0400 | [diff] [blame] | 162 | st->subframe_mem[0]=st->subframe_mem[1]=st->subframe_mem[2]=0; |
| 163 | OPUS_CLEAR(&st->analysis,1); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 164 | if (!surround) |
| 165 | st->lfe_stream = -1; |
Jean-Marc Valin | 95561be | 2012-12-17 17:54:01 -0500 | [diff] [blame] | 166 | st->bitrate_bps = OPUS_AUTO; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 167 | st->variable_duration = OPUS_FRAMESIZE_ARG; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 168 | for (i=0;i<st->layout.nb_channels;i++) |
| 169 | st->layout.mapping[i] = mapping[i]; |
| 170 | if (!validate_layout(&st->layout) || !validate_encoder_layout(&st->layout)) |
| 171 | return OPUS_BAD_ARG; |
| 172 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 173 | coupled_size = opus_encoder_get_size(2); |
| 174 | mono_size = opus_encoder_get_size(1); |
| 175 | |
| 176 | for (i=0;i<st->layout.nb_coupled_streams;i++) |
| 177 | { |
| 178 | ret = opus_encoder_init((OpusEncoder*)ptr, Fs, 2, application); |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 179 | if(ret!=OPUS_OK)return ret; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 180 | if (i==st->lfe_stream) |
| 181 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_SET_LFE(1)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 182 | ptr += align(coupled_size); |
| 183 | } |
| 184 | for (;i<st->layout.nb_streams;i++) |
| 185 | { |
| 186 | ret = opus_encoder_init((OpusEncoder*)ptr, Fs, 1, application); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 187 | if (i==st->lfe_stream) |
| 188 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_SET_LFE(1)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 189 | if(ret!=OPUS_OK)return ret; |
| 190 | ptr += align(mono_size); |
| 191 | } |
Jean-Marc Valin | 58d80ab | 2013-05-27 20:47:47 -0400 | [diff] [blame] | 192 | if (surround) |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 193 | { |
| 194 | OpusEncoder *downmix_enc; |
| 195 | downmix_enc = (OpusEncoder*)ptr; |
| 196 | ret = opus_encoder_init(downmix_enc, Fs, 2, OPUS_APPLICATION_AUDIO); |
| 197 | if(ret!=OPUS_OK)return ret; |
| 198 | } |
| 199 | st->surround = surround; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 200 | return OPUS_OK; |
| 201 | } |
| 202 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 203 | int opus_multistream_encoder_init( |
| 204 | OpusMSEncoder *st, |
| 205 | opus_int32 Fs, |
| 206 | int channels, |
| 207 | int streams, |
| 208 | int coupled_streams, |
| 209 | const unsigned char *mapping, |
| 210 | int application |
| 211 | ) |
| 212 | { |
| 213 | return opus_multistream_encoder_init_impl(st, Fs, channels, streams, coupled_streams, mapping, application, 0); |
| 214 | } |
| 215 | |
| 216 | int opus_multistream_surround_encoder_init( |
| 217 | OpusMSEncoder *st, |
| 218 | opus_int32 Fs, |
| 219 | int channels, |
| 220 | int mapping_family, |
| 221 | int *streams, |
| 222 | int *coupled_streams, |
| 223 | unsigned char *mapping, |
| 224 | int application |
| 225 | ) |
| 226 | { |
| 227 | st->lfe_stream = -1; |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 228 | if (mapping_family==0) |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 229 | { |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 230 | if (channels==1) |
| 231 | { |
| 232 | *streams=1; |
| 233 | *coupled_streams=0; |
| 234 | mapping[0]=0; |
| 235 | } else if (channels==2) |
| 236 | { |
| 237 | *streams=1; |
| 238 | *coupled_streams=1; |
| 239 | mapping[0]=0; |
| 240 | mapping[1]=1; |
| 241 | } else |
| 242 | return OPUS_UNIMPLEMENTED; |
| 243 | } else if (mapping_family==1 && channels<=8 && channels>=1) |
| 244 | { |
| 245 | int i; |
| 246 | *streams=vorbis_mappings[channels-1].nb_streams; |
| 247 | *coupled_streams=vorbis_mappings[channels-1].nb_coupled_streams; |
| 248 | for (i=0;i<channels;i++) |
| 249 | mapping[i] = vorbis_mappings[channels-1].mapping[i]; |
| 250 | if (channels>=6) |
| 251 | st->lfe_stream = *streams-1; |
| 252 | } else if (mapping_family==255) |
| 253 | { |
| 254 | int i; |
| 255 | *streams=channels; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 256 | *coupled_streams=0; |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 257 | for(i=0;i<channels;i++) |
| 258 | mapping[i] = i; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 259 | } else |
Jean-Marc Valin | 7a8b139 | 2013-04-29 18:32:27 -0400 | [diff] [blame] | 260 | return OPUS_UNIMPLEMENTED; |
Jean-Marc Valin | 58d80ab | 2013-05-27 20:47:47 -0400 | [diff] [blame] | 261 | opus_multistream_encoder_init_impl(st, Fs, channels, *streams, *coupled_streams, |
| 262 | mapping, application, channels>2&&mapping_family==1); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 263 | return OPUS_OK; |
| 264 | } |
| 265 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 266 | OpusMSEncoder *opus_multistream_encoder_create( |
| 267 | opus_int32 Fs, |
| 268 | int channels, |
| 269 | int streams, |
| 270 | int coupled_streams, |
| 271 | const unsigned char *mapping, |
| 272 | int application, |
| 273 | int *error |
| 274 | ) |
| 275 | { |
| 276 | int ret; |
| 277 | OpusMSEncoder *st; |
| 278 | if ((channels>255) || (channels<1) || (coupled_streams>streams) || |
| 279 | (coupled_streams+streams>255) || (streams<1) || (coupled_streams<0)) |
| 280 | { |
| 281 | if (error) |
| 282 | *error = OPUS_BAD_ARG; |
| 283 | return NULL; |
| 284 | } |
| 285 | st = (OpusMSEncoder *)opus_alloc(opus_multistream_encoder_get_size(streams, coupled_streams)); |
| 286 | if (st==NULL) |
| 287 | { |
| 288 | if (error) |
| 289 | *error = OPUS_ALLOC_FAIL; |
| 290 | return NULL; |
| 291 | } |
| 292 | ret = opus_multistream_encoder_init(st, Fs, channels, streams, coupled_streams, mapping, application); |
| 293 | if (ret != OPUS_OK) |
| 294 | { |
| 295 | opus_free(st); |
| 296 | st = NULL; |
| 297 | } |
| 298 | if (error) |
| 299 | *error = ret; |
| 300 | return st; |
| 301 | } |
| 302 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 303 | OpusMSEncoder *opus_multistream_surround_encoder_create( |
| 304 | opus_int32 Fs, |
| 305 | int channels, |
| 306 | int mapping_family, |
| 307 | int *streams, |
| 308 | int *coupled_streams, |
| 309 | unsigned char *mapping, |
| 310 | int application, |
| 311 | int *error |
| 312 | ) |
| 313 | { |
| 314 | int ret; |
| 315 | OpusMSEncoder *st; |
| 316 | if ((channels>255) || (channels<1)) |
| 317 | { |
| 318 | if (error) |
| 319 | *error = OPUS_BAD_ARG; |
| 320 | return NULL; |
| 321 | } |
| 322 | st = (OpusMSEncoder *)opus_alloc(opus_multistream_surround_encoder_get_size(channels, mapping_family)); |
| 323 | if (st==NULL) |
| 324 | { |
| 325 | if (error) |
| 326 | *error = OPUS_ALLOC_FAIL; |
| 327 | return NULL; |
| 328 | } |
| 329 | ret = opus_multistream_surround_encoder_init(st, Fs, channels, mapping_family, streams, coupled_streams, mapping, application); |
| 330 | if (ret != OPUS_OK) |
| 331 | { |
| 332 | opus_free(st); |
| 333 | st = NULL; |
| 334 | } |
| 335 | if (error) |
| 336 | *error = ret; |
| 337 | return st; |
| 338 | } |
| 339 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 340 | typedef void (*opus_copy_channel_in_func)( |
| 341 | opus_val16 *dst, |
| 342 | int dst_stride, |
| 343 | const void *src, |
| 344 | int src_stride, |
| 345 | int src_channel, |
| 346 | int frame_size |
| 347 | ); |
| 348 | |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 349 | typedef void (*opus_surround_downmix_funct)( |
| 350 | opus_val16 *dst, |
| 351 | const void *src, |
| 352 | int channels, |
| 353 | int frame_size |
| 354 | ); |
| 355 | |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 356 | static void surround_rate_allocation( |
| 357 | OpusMSEncoder *st, |
| 358 | opus_int32 *rate, |
| 359 | int frame_size |
| 360 | ) |
| 361 | { |
| 362 | int i; |
| 363 | opus_int32 channel_rate; |
| 364 | opus_int32 Fs; |
| 365 | char *ptr; |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 366 | int stream_offset; |
| 367 | int lfe_offset; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 368 | int coupled_ratio; /* Q8 */ |
| 369 | int lfe_ratio; /* Q8 */ |
| 370 | |
| 371 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 372 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_SAMPLE_RATE(&Fs)); |
| 373 | |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 374 | /* We start by giving each stream (coupled or uncoupled) the same bitrate. |
| 375 | This models the main saving of coupled channels over uncoupled. */ |
| 376 | stream_offset = 20000; |
| 377 | /* The LFE stream is an exception to the above and gets fewer bits. */ |
| 378 | lfe_offset = 3500; |
| 379 | /* Coupled streams get twice the mono rate after the first 20 kb/s. */ |
| 380 | coupled_ratio = 512; |
| 381 | /* 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] | 382 | lfe_ratio = 32; |
| 383 | |
| 384 | /* Compute bitrate allocation between streams */ |
| 385 | if (st->bitrate_bps==OPUS_AUTO) |
| 386 | { |
| 387 | channel_rate = Fs+60*Fs/frame_size; |
| 388 | } else if (st->bitrate_bps==OPUS_BITRATE_MAX) |
| 389 | { |
| 390 | channel_rate = 300000; |
| 391 | } else { |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 392 | int nb_lfe; |
| 393 | int nb_uncoupled; |
| 394 | int nb_coupled; |
| 395 | int total; |
| 396 | nb_lfe = (st->lfe_stream!=-1); |
| 397 | nb_coupled = st->layout.nb_coupled_streams; |
| 398 | nb_uncoupled = st->layout.nb_streams-nb_coupled-nb_lfe; |
| 399 | total = (nb_uncoupled<<8) /* mono */ |
| 400 | + coupled_ratio*nb_coupled /* stereo */ |
| 401 | + nb_lfe*lfe_ratio; |
| 402 | 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] | 403 | } |
| 404 | #ifndef FIXED_POINT |
| 405 | if (st->variable_duration==OPUS_FRAMESIZE_VARIABLE && frame_size != Fs/50) |
| 406 | { |
| 407 | opus_int32 bonus; |
| 408 | bonus = 60*(Fs/frame_size-50); |
| 409 | channel_rate += bonus; |
| 410 | } |
| 411 | #endif |
| 412 | |
| 413 | for (i=0;i<st->layout.nb_streams;i++) |
| 414 | { |
| 415 | if (i<st->layout.nb_coupled_streams) |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 416 | rate[i] = stream_offset+(channel_rate*coupled_ratio>>8); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 417 | else if (i!=st->lfe_stream) |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 418 | rate[i] = stream_offset+channel_rate; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 419 | else |
Jean-Marc Valin | d66bdc7 | 2013-05-06 16:03:39 -0400 | [diff] [blame] | 420 | rate[i] = lfe_offset+(channel_rate*lfe_ratio>>8); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 421 | } |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 422 | } |
| 423 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 424 | /* Max size in case the encoder decides to return three frames */ |
| 425 | #define MS_FRAME_TMP (3*1275+7) |
| 426 | static int opus_multistream_encode_native |
| 427 | ( |
| 428 | OpusMSEncoder *st, |
| 429 | opus_copy_channel_in_func copy_channel_in, |
| 430 | const void *pcm, |
| 431 | int frame_size, |
| 432 | unsigned char *data, |
Jean-Marc Valin | b3eba24 | 2012-12-20 23:11:53 -0500 | [diff] [blame] | 433 | opus_int32 max_data_bytes, |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 434 | int lsb_depth, |
| 435 | opus_surround_downmix_funct surround_downmix |
Jean-Marc Valin | 10a34a5 | 2012-12-20 00:23:01 -0500 | [diff] [blame] | 436 | #ifndef FIXED_POINT |
| 437 | , downmix_func downmix |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 438 | , const void *pcm_analysis |
Jean-Marc Valin | 10a34a5 | 2012-12-20 00:23:01 -0500 | [diff] [blame] | 439 | #endif |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 440 | ) |
| 441 | { |
| 442 | opus_int32 Fs; |
| 443 | int coupled_size; |
| 444 | int mono_size; |
| 445 | int s; |
| 446 | char *ptr; |
| 447 | int tot_size; |
| 448 | VARDECL(opus_val16, buf); |
| 449 | unsigned char tmp_data[MS_FRAME_TMP]; |
| 450 | OpusRepacketizer rp; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 451 | opus_int32 complexity; |
| 452 | AnalysisInfo analysis_info; |
| 453 | const CELTMode *celt_mode; |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 454 | opus_int32 bitrates[256]; |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 455 | opus_val16 bandLogE[42]; |
| 456 | opus_val16 bandLogE_mono[21]; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 457 | ALLOC_STACK; |
| 458 | |
| 459 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 460 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_SAMPLE_RATE(&Fs)); |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 461 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_COMPLEXITY(&complexity)); |
| 462 | opus_encoder_ctl((OpusEncoder*)ptr, CELT_GET_MODE(&celt_mode)); |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 463 | |
| 464 | if (400*frame_size < Fs) |
| 465 | { |
| 466 | RESTORE_STACK; |
| 467 | return OPUS_BAD_ARG; |
| 468 | } |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 469 | #ifndef FIXED_POINT |
| 470 | analysis_info.valid = 0; |
| 471 | if (complexity >= 7 && Fs==48000) |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 472 | { |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 473 | opus_int32 delay_compensation; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 474 | int channels; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 475 | |
| 476 | channels = st->layout.nb_streams + st->layout.nb_coupled_streams; |
| 477 | opus_encoder_ctl((OpusEncoder*)ptr, OPUS_GET_LOOKAHEAD(&delay_compensation)); |
| 478 | delay_compensation -= Fs/400; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 479 | |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 480 | frame_size = run_analysis(&st->analysis, celt_mode, pcm, pcm_analysis, |
| 481 | frame_size, st->variable_duration, channels, Fs, st->bitrate_bps, delay_compensation, lsb_depth, downmix, &analysis_info); |
| 482 | } else |
| 483 | #endif |
| 484 | { |
| 485 | frame_size = frame_size_select(frame_size, st->variable_duration, Fs); |
| 486 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 487 | /* Validate frame_size before using it to allocate stack space. |
| 488 | This mirrors the checks in opus_encode[_float](). */ |
| 489 | if (400*frame_size != Fs && 200*frame_size != Fs && |
| 490 | 100*frame_size != Fs && 50*frame_size != Fs && |
| 491 | 25*frame_size != Fs && 50*frame_size != 3*Fs) |
| 492 | { |
| 493 | RESTORE_STACK; |
| 494 | return OPUS_BAD_ARG; |
| 495 | } |
| 496 | ALLOC(buf, 2*frame_size, opus_val16); |
| 497 | coupled_size = opus_encoder_get_size(2); |
| 498 | mono_size = opus_encoder_get_size(1); |
| 499 | |
Jean-Marc Valin | 58d80ab | 2013-05-27 20:47:47 -0400 | [diff] [blame] | 500 | if (st->surround) |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 501 | { |
| 502 | int i; |
| 503 | unsigned char dummy[512]; |
| 504 | /* Temporary kludge -- remove */ |
| 505 | OpusEncoder *downmix_enc; |
| 506 | |
| 507 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 508 | for (s=0;s<st->layout.nb_streams;s++) |
| 509 | { |
| 510 | if (s < st->layout.nb_coupled_streams) |
| 511 | ptr += align(coupled_size); |
| 512 | else |
| 513 | ptr += align(mono_size); |
| 514 | } |
| 515 | downmix_enc = (OpusEncoder*)ptr; |
| 516 | surround_downmix(buf, pcm, st->layout.nb_channels, frame_size); |
| 517 | opus_encoder_ctl(downmix_enc, OPUS_SET_ENERGY_SAVE(bandLogE)); |
| 518 | opus_encoder_ctl(downmix_enc, OPUS_SET_BANDWIDTH(OPUS_BANDWIDTH_FULLBAND)); |
| 519 | opus_encoder_ctl(downmix_enc, OPUS_SET_FORCE_MODE(MODE_CELT_ONLY)); |
| 520 | opus_encoder_ctl(downmix_enc, OPUS_SET_FORCE_CHANNELS(2)); |
| 521 | opus_encode_native(downmix_enc, buf, frame_size, dummy, 512, lsb_depth |
| 522 | #ifndef FIXED_POINT |
| 523 | , &analysis_info |
| 524 | #endif |
| 525 | ); |
| 526 | for(i=0;i<21;i++) |
| 527 | bandLogE_mono[i] = MAX16(bandLogE[i], bandLogE[21+i]); |
| 528 | } |
| 529 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 530 | if (max_data_bytes < 4*st->layout.nb_streams-1) |
| 531 | { |
| 532 | RESTORE_STACK; |
| 533 | return OPUS_BUFFER_TOO_SMALL; |
| 534 | } |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 535 | |
| 536 | /* Compute bitrate allocation between streams (this could be a lot better) */ |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 537 | surround_rate_allocation(st, bitrates, frame_size); |
| 538 | |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 539 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 540 | for (s=0;s<st->layout.nb_streams;s++) |
| 541 | { |
| 542 | OpusEncoder *enc; |
| 543 | enc = (OpusEncoder*)ptr; |
| 544 | if (s < st->layout.nb_coupled_streams) |
| 545 | ptr += align(coupled_size); |
| 546 | else |
| 547 | ptr += align(mono_size); |
Jean-Marc Valin | 1b72386 | 2013-04-25 21:34:04 -0400 | [diff] [blame] | 548 | opus_encoder_ctl(enc, OPUS_SET_BITRATE(bitrates[s])); |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 549 | if (st->surround) |
| 550 | { |
| 551 | opus_encoder_ctl(enc, OPUS_SET_FORCE_MODE(MODE_CELT_ONLY)); |
| 552 | opus_encoder_ctl(enc, OPUS_SET_BANDWIDTH(OPUS_BANDWIDTH_FULLBAND)); |
| 553 | if (s < st->layout.nb_coupled_streams) |
| 554 | opus_encoder_ctl(enc, OPUS_SET_FORCE_CHANNELS(2)); |
| 555 | } |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 556 | } |
| 557 | |
| 558 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 559 | /* Counting ToC */ |
| 560 | tot_size = 0; |
| 561 | for (s=0;s<st->layout.nb_streams;s++) |
| 562 | { |
| 563 | OpusEncoder *enc; |
| 564 | int len; |
| 565 | int curr_max; |
| 566 | |
| 567 | opus_repacketizer_init(&rp); |
| 568 | enc = (OpusEncoder*)ptr; |
| 569 | if (s < st->layout.nb_coupled_streams) |
| 570 | { |
| 571 | int left, right; |
| 572 | left = get_left_channel(&st->layout, s, -1); |
| 573 | right = get_right_channel(&st->layout, s, -1); |
| 574 | (*copy_channel_in)(buf, 2, |
| 575 | pcm, st->layout.nb_channels, left, frame_size); |
| 576 | (*copy_channel_in)(buf+1, 2, |
| 577 | pcm, st->layout.nb_channels, right, frame_size); |
| 578 | ptr += align(coupled_size); |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 579 | /* FIXME: This isn't correct for the coupled center channels in |
| 580 | 6.1 surround configuration */ |
| 581 | if (st->surround) |
| 582 | opus_encoder_ctl(enc, OPUS_SET_ENERGY_MASK(bandLogE)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 583 | } else { |
| 584 | int chan = get_mono_channel(&st->layout, s, -1); |
| 585 | (*copy_channel_in)(buf, 1, |
| 586 | pcm, st->layout.nb_channels, chan, frame_size); |
| 587 | ptr += align(mono_size); |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 588 | if (st->surround) |
| 589 | opus_encoder_ctl(enc, OPUS_SET_ENERGY_MASK(bandLogE_mono)); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 590 | } |
| 591 | /* number of bytes left (+Toc) */ |
| 592 | curr_max = max_data_bytes - tot_size; |
| 593 | /* Reserve three bytes for the last stream and four for the others */ |
| 594 | curr_max -= IMAX(0,4*(st->layout.nb_streams-s-1)-1); |
| 595 | curr_max = IMIN(curr_max,MS_FRAME_TMP); |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 596 | len = opus_encode_native(enc, buf, frame_size, tmp_data, curr_max, lsb_depth |
| 597 | #ifndef FIXED_POINT |
| 598 | , &analysis_info |
| 599 | #endif |
| 600 | ); |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 601 | if (len<0) |
| 602 | { |
| 603 | RESTORE_STACK; |
| 604 | return len; |
| 605 | } |
| 606 | /* We need to use the repacketizer to add the self-delimiting lengths |
| 607 | while taking into account the fact that the encoder can now return |
| 608 | more than one frame at a time (e.g. 60 ms CELT-only) */ |
| 609 | opus_repacketizer_cat(&rp, tmp_data, len); |
| 610 | 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); |
| 611 | data += len; |
| 612 | tot_size += len; |
| 613 | } |
| 614 | RESTORE_STACK; |
| 615 | return tot_size; |
| 616 | |
| 617 | } |
| 618 | |
| 619 | #if !defined(DISABLE_FLOAT_API) |
| 620 | static void opus_copy_channel_in_float( |
| 621 | opus_val16 *dst, |
| 622 | int dst_stride, |
| 623 | const void *src, |
| 624 | int src_stride, |
| 625 | int src_channel, |
| 626 | int frame_size |
| 627 | ) |
| 628 | { |
| 629 | const float *float_src; |
Timothy B. Terriberry | a8f04b2 | 2013-03-18 14:42:44 -0700 | [diff] [blame] | 630 | opus_int32 i; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 631 | float_src = (const float *)src; |
| 632 | for (i=0;i<frame_size;i++) |
| 633 | #if defined(FIXED_POINT) |
| 634 | dst[i*dst_stride] = FLOAT2INT16(float_src[i*src_stride+src_channel]); |
| 635 | #else |
| 636 | dst[i*dst_stride] = float_src[i*src_stride+src_channel]; |
| 637 | #endif |
| 638 | } |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 639 | |
| 640 | static void channel_pos(int channels, int pos[8]) |
| 641 | { |
| 642 | /* Position in the mix: 0 don't mix, 1: left, 2: center, 3:right */ |
| 643 | if (channels==4) |
| 644 | { |
| 645 | pos[0]=1; |
| 646 | pos[1]=3; |
| 647 | pos[2]=1; |
| 648 | pos[3]=3; |
| 649 | } else if (channels==3||channels==5||channels==6) |
| 650 | { |
| 651 | pos[0]=1; |
| 652 | pos[1]=2; |
| 653 | pos[2]=3; |
| 654 | pos[3]=1; |
| 655 | pos[4]=3; |
| 656 | pos[5]=0; |
| 657 | } else if (channels==7) |
| 658 | { |
| 659 | pos[0]=1; |
| 660 | pos[1]=2; |
| 661 | pos[2]=3; |
| 662 | pos[3]=1; |
| 663 | pos[4]=3; |
| 664 | pos[5]=2; |
| 665 | pos[6]=0; |
| 666 | } else if (channels==8) |
| 667 | { |
| 668 | pos[0]=1; |
| 669 | pos[1]=2; |
| 670 | pos[2]=3; |
| 671 | pos[3]=1; |
| 672 | pos[4]=3; |
| 673 | pos[5]=1; |
| 674 | pos[6]=3; |
| 675 | pos[7]=0; |
| 676 | } |
| 677 | } |
| 678 | |
| 679 | static void opus_surround_downmix_float( |
| 680 | opus_val16 *dst, |
| 681 | const void *src, |
| 682 | int channels, |
| 683 | int frame_size |
| 684 | ) |
| 685 | { |
| 686 | const float *float_src; |
| 687 | opus_int32 i; |
| 688 | int pos[8] = {0}; |
| 689 | int c; |
| 690 | float_src = (const float *)src; |
| 691 | |
| 692 | channel_pos(channels, pos); |
| 693 | for (i=0;i<2*frame_size;i++) |
| 694 | dst[i]=0; |
| 695 | |
| 696 | for (c=0;c<channels;c++) |
| 697 | { |
| 698 | if (pos[c]==1||pos[c]==2) |
| 699 | { |
| 700 | for (i=0;i<frame_size;i++) |
| 701 | #if defined(FIXED_POINT) |
| 702 | dst[2*i] += SHR16(FLOAT2INT16(float_src[i*channels+c]),3); |
| 703 | #else |
| 704 | dst[2*i] += float_src[i*channels+c]; |
| 705 | #endif |
| 706 | } |
| 707 | if (pos[c]==2||pos[c]==3) |
| 708 | { |
| 709 | for (i=0;i<frame_size;i++) |
| 710 | #if defined(FIXED_POINT) |
| 711 | dst[2*i+1] += SHR16(FLOAT2INT16(float_src[i*channels+c]),3); |
| 712 | #else |
| 713 | dst[2*i+1] += float_src[i*channels+c]; |
| 714 | #endif |
| 715 | } |
| 716 | } |
| 717 | } |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 718 | #endif |
| 719 | |
| 720 | static void opus_copy_channel_in_short( |
| 721 | opus_val16 *dst, |
| 722 | int dst_stride, |
| 723 | const void *src, |
| 724 | int src_stride, |
| 725 | int src_channel, |
| 726 | int frame_size |
| 727 | ) |
| 728 | { |
| 729 | const opus_int16 *short_src; |
Timothy B. Terriberry | a8f04b2 | 2013-03-18 14:42:44 -0700 | [diff] [blame] | 730 | opus_int32 i; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 731 | short_src = (const opus_int16 *)src; |
| 732 | for (i=0;i<frame_size;i++) |
| 733 | #if defined(FIXED_POINT) |
| 734 | dst[i*dst_stride] = short_src[i*src_stride+src_channel]; |
| 735 | #else |
| 736 | dst[i*dst_stride] = (1/32768.f)*short_src[i*src_stride+src_channel]; |
| 737 | #endif |
| 738 | } |
| 739 | |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 740 | static void opus_surround_downmix_short( |
| 741 | opus_val16 *dst, |
| 742 | const void *src, |
| 743 | int channels, |
| 744 | int frame_size |
| 745 | ) |
| 746 | { |
| 747 | const opus_int16 *short_src; |
| 748 | opus_int32 i; |
| 749 | int pos[8] = {0}; |
| 750 | int c; |
| 751 | short_src = (const opus_int16 *)src; |
| 752 | |
| 753 | channel_pos(channels, pos); |
| 754 | for (i=0;i<2*frame_size;i++) |
| 755 | dst[i]=0; |
| 756 | |
| 757 | for (c=0;c<channels;c++) |
| 758 | { |
| 759 | if (pos[c]==1||pos[c]==2) |
| 760 | { |
| 761 | for (i=0;i<frame_size;i++) |
| 762 | #if defined(FIXED_POINT) |
| 763 | dst[2*i] += SHR16(short_src[i*channels+c],3); |
| 764 | #else |
| 765 | dst[2*i] += (1/32768.f)*short_src[i*channels+c]; |
| 766 | #endif |
| 767 | } |
| 768 | if (pos[c]==2||pos[c]==3) |
| 769 | { |
| 770 | for (i=0;i<frame_size;i++) |
| 771 | #if defined(FIXED_POINT) |
| 772 | dst[2*i+1] += SHR16(short_src[i*channels+c],3); |
| 773 | #else |
| 774 | dst[2*i+1] += (1/32768.f)*short_src[i*channels+c]; |
| 775 | #endif |
| 776 | } |
| 777 | } |
| 778 | } |
| 779 | |
| 780 | |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 781 | #ifdef FIXED_POINT |
| 782 | int opus_multistream_encode( |
| 783 | OpusMSEncoder *st, |
| 784 | const opus_val16 *pcm, |
| 785 | int frame_size, |
| 786 | unsigned char *data, |
| 787 | opus_int32 max_data_bytes |
| 788 | ) |
| 789 | { |
| 790 | return opus_multistream_encode_native(st, opus_copy_channel_in_short, |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 791 | 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] | 792 | } |
| 793 | |
| 794 | #ifndef DISABLE_FLOAT_API |
| 795 | int opus_multistream_encode_float( |
| 796 | OpusMSEncoder *st, |
| 797 | const float *pcm, |
| 798 | int frame_size, |
| 799 | unsigned char *data, |
| 800 | opus_int32 max_data_bytes |
| 801 | ) |
| 802 | { |
| 803 | return opus_multistream_encode_native(st, opus_copy_channel_in_float, |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 804 | 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] | 805 | } |
| 806 | #endif |
| 807 | |
| 808 | #else |
| 809 | |
| 810 | int opus_multistream_encode_float |
| 811 | ( |
| 812 | OpusMSEncoder *st, |
| 813 | const opus_val16 *pcm, |
| 814 | int frame_size, |
| 815 | unsigned char *data, |
| 816 | opus_int32 max_data_bytes |
| 817 | ) |
| 818 | { |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 819 | int channels = st->layout.nb_streams + st->layout.nb_coupled_streams; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 820 | return opus_multistream_encode_native(st, opus_copy_channel_in_float, |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 821 | 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] | 822 | } |
| 823 | |
| 824 | int opus_multistream_encode( |
| 825 | OpusMSEncoder *st, |
| 826 | const opus_int16 *pcm, |
| 827 | int frame_size, |
| 828 | unsigned char *data, |
| 829 | opus_int32 max_data_bytes |
| 830 | ) |
| 831 | { |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 832 | int channels = st->layout.nb_streams + st->layout.nb_coupled_streams; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 833 | return opus_multistream_encode_native(st, opus_copy_channel_in_short, |
Jean-Marc Valin | a4dccd3 | 2013-05-04 23:54:20 -0400 | [diff] [blame] | 834 | 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] | 835 | } |
| 836 | #endif |
| 837 | |
| 838 | int opus_multistream_encoder_ctl(OpusMSEncoder *st, int request, ...) |
| 839 | { |
| 840 | va_list ap; |
| 841 | int coupled_size, mono_size; |
| 842 | char *ptr; |
| 843 | int ret = OPUS_OK; |
| 844 | |
| 845 | va_start(ap, request); |
| 846 | |
| 847 | coupled_size = opus_encoder_get_size(2); |
| 848 | mono_size = opus_encoder_get_size(1); |
| 849 | ptr = (char*)st + align(sizeof(OpusMSEncoder)); |
| 850 | switch (request) |
| 851 | { |
| 852 | case OPUS_SET_BITRATE_REQUEST: |
| 853 | { |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 854 | opus_int32 value = va_arg(ap, opus_int32); |
Jean-Marc Valin | 95561be | 2012-12-17 17:54:01 -0500 | [diff] [blame] | 855 | if (value<0 && value!=OPUS_AUTO && value!=OPUS_BITRATE_MAX) |
| 856 | goto bad_arg; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 857 | st->bitrate_bps = value; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 858 | } |
| 859 | break; |
| 860 | case OPUS_GET_BITRATE_REQUEST: |
| 861 | { |
| 862 | int s; |
| 863 | opus_int32 *value = va_arg(ap, opus_int32*); |
Gregory Maxwell | dd7b0da | 2013-06-29 20:06:07 -0700 | [diff] [blame^] | 864 | if (!value) goto bad_arg; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 865 | *value = 0; |
| 866 | for (s=0;s<st->layout.nb_streams;s++) |
| 867 | { |
| 868 | opus_int32 rate; |
| 869 | OpusEncoder *enc; |
| 870 | enc = (OpusEncoder*)ptr; |
| 871 | if (s < st->layout.nb_coupled_streams) |
| 872 | ptr += align(coupled_size); |
| 873 | else |
| 874 | ptr += align(mono_size); |
| 875 | opus_encoder_ctl(enc, request, &rate); |
| 876 | *value += rate; |
| 877 | } |
| 878 | } |
| 879 | break; |
| 880 | case OPUS_GET_LSB_DEPTH_REQUEST: |
| 881 | case OPUS_GET_VBR_REQUEST: |
| 882 | case OPUS_GET_APPLICATION_REQUEST: |
| 883 | case OPUS_GET_BANDWIDTH_REQUEST: |
| 884 | case OPUS_GET_COMPLEXITY_REQUEST: |
| 885 | case OPUS_GET_PACKET_LOSS_PERC_REQUEST: |
| 886 | case OPUS_GET_DTX_REQUEST: |
| 887 | case OPUS_GET_VOICE_RATIO_REQUEST: |
| 888 | case OPUS_GET_VBR_CONSTRAINT_REQUEST: |
| 889 | case OPUS_GET_SIGNAL_REQUEST: |
| 890 | case OPUS_GET_LOOKAHEAD_REQUEST: |
| 891 | case OPUS_GET_SAMPLE_RATE_REQUEST: |
| 892 | case OPUS_GET_INBAND_FEC_REQUEST: |
| 893 | case OPUS_GET_FORCE_CHANNELS_REQUEST: |
| 894 | { |
| 895 | OpusEncoder *enc; |
| 896 | /* For int32* GET params, just query the first stream */ |
| 897 | opus_int32 *value = va_arg(ap, opus_int32*); |
| 898 | enc = (OpusEncoder*)ptr; |
| 899 | ret = opus_encoder_ctl(enc, request, value); |
| 900 | } |
| 901 | break; |
| 902 | case OPUS_GET_FINAL_RANGE_REQUEST: |
| 903 | { |
| 904 | int s; |
| 905 | opus_uint32 *value = va_arg(ap, opus_uint32*); |
| 906 | opus_uint32 tmp; |
Gregory Maxwell | dd7b0da | 2013-06-29 20:06:07 -0700 | [diff] [blame^] | 907 | if (!value) goto bad_arg; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 908 | *value=0; |
| 909 | for (s=0;s<st->layout.nb_streams;s++) |
| 910 | { |
| 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 | ret = opus_encoder_ctl(enc, request, &tmp); |
| 918 | if (ret != OPUS_OK) break; |
| 919 | *value ^= tmp; |
| 920 | } |
| 921 | } |
| 922 | break; |
| 923 | case OPUS_SET_LSB_DEPTH_REQUEST: |
| 924 | case OPUS_SET_COMPLEXITY_REQUEST: |
| 925 | case OPUS_SET_VBR_REQUEST: |
| 926 | case OPUS_SET_VBR_CONSTRAINT_REQUEST: |
| 927 | case OPUS_SET_BANDWIDTH_REQUEST: |
| 928 | case OPUS_SET_SIGNAL_REQUEST: |
| 929 | case OPUS_SET_APPLICATION_REQUEST: |
| 930 | case OPUS_SET_INBAND_FEC_REQUEST: |
| 931 | case OPUS_SET_PACKET_LOSS_PERC_REQUEST: |
| 932 | case OPUS_SET_DTX_REQUEST: |
| 933 | case OPUS_SET_FORCE_MODE_REQUEST: |
| 934 | case OPUS_SET_FORCE_CHANNELS_REQUEST: |
| 935 | { |
| 936 | int s; |
| 937 | /* This works for int32 params */ |
| 938 | opus_int32 value = va_arg(ap, opus_int32); |
| 939 | for (s=0;s<st->layout.nb_streams;s++) |
| 940 | { |
| 941 | OpusEncoder *enc; |
| 942 | |
| 943 | enc = (OpusEncoder*)ptr; |
| 944 | if (s < st->layout.nb_coupled_streams) |
| 945 | ptr += align(coupled_size); |
| 946 | else |
| 947 | ptr += align(mono_size); |
| 948 | ret = opus_encoder_ctl(enc, request, value); |
| 949 | if (ret != OPUS_OK) |
| 950 | break; |
| 951 | } |
| 952 | } |
| 953 | break; |
| 954 | case OPUS_MULTISTREAM_GET_ENCODER_STATE_REQUEST: |
| 955 | { |
| 956 | int s; |
| 957 | opus_int32 stream_id; |
| 958 | OpusEncoder **value; |
| 959 | stream_id = va_arg(ap, opus_int32); |
| 960 | if (stream_id<0 || stream_id >= st->layout.nb_streams) |
| 961 | ret = OPUS_BAD_ARG; |
| 962 | value = va_arg(ap, OpusEncoder**); |
Gregory Maxwell | dd7b0da | 2013-06-29 20:06:07 -0700 | [diff] [blame^] | 963 | if (!value) goto bad_arg; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 964 | for (s=0;s<stream_id;s++) |
| 965 | { |
| 966 | if (s < st->layout.nb_coupled_streams) |
| 967 | ptr += align(coupled_size); |
| 968 | else |
| 969 | ptr += align(mono_size); |
| 970 | } |
| 971 | *value = (OpusEncoder*)ptr; |
| 972 | } |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 973 | break; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 974 | case OPUS_SET_EXPERT_FRAME_DURATION_REQUEST: |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 975 | { |
| 976 | opus_int32 value = va_arg(ap, opus_int32); |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 977 | st->variable_duration = value; |
| 978 | } |
| 979 | break; |
Jean-Marc Valin | 51f4a32 | 2013-02-20 04:08:04 -0500 | [diff] [blame] | 980 | case OPUS_GET_EXPERT_FRAME_DURATION_REQUEST: |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 981 | { |
| 982 | opus_int32 *value = va_arg(ap, opus_int32*); |
Gregory Maxwell | dd7b0da | 2013-06-29 20:06:07 -0700 | [diff] [blame^] | 983 | if (!value) goto bad_arg; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 984 | *value = st->variable_duration; |
| 985 | } |
| 986 | break; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 987 | default: |
| 988 | ret = OPUS_UNIMPLEMENTED; |
| 989 | break; |
| 990 | } |
| 991 | |
| 992 | va_end(ap); |
| 993 | return ret; |
Jean-Marc Valin | 7448366 | 2012-12-17 16:23:42 -0500 | [diff] [blame] | 994 | bad_arg: |
| 995 | va_end(ap); |
| 996 | return OPUS_BAD_ARG; |
Jean-Marc Valin | ae0e2ca | 2012-11-07 19:57:33 -0500 | [diff] [blame] | 997 | } |
| 998 | |
| 999 | void opus_multistream_encoder_destroy(OpusMSEncoder *st) |
| 1000 | { |
| 1001 | opus_free(st); |
| 1002 | } |