1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) AND MIT) */ 2 /* 3 * compress_params.h - codec types and parameters for compressed data 4 * streaming interface 5 * 6 * Copyright (C) 2011 Intel Corporation 7 * Authors: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> 8 * Vinod Koul <vinod.koul@linux.intel.com> 9 * 10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License as published by 14 * the Free Software Foundation; version 2 of the License. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License along 22 * with this program; if not, write to the Free Software Foundation, Inc., 23 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. 24 * 25 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 26 * 27 * The definitions in this file are derived from the OpenMAX AL version 1.1 28 * and OpenMAX IL v 1.1.2 header files which contain the copyright notice below. 29 * 30 * Copyright (c) 2007-2010 The Khronos Group Inc. 31 * 32 * Permission is hereby granted, free of charge, to any person obtaining 33 * a copy of this software and/or associated documentation files (the 34 * "Materials "), to deal in the Materials without restriction, including 35 * without limitation the rights to use, copy, modify, merge, publish, 36 * distribute, sublicense, and/or sell copies of the Materials, and to 37 * permit persons to whom the Materials are furnished to do so, subject to 38 * the following conditions: 39 * 40 * The above copyright notice and this permission notice shall be included 41 * in all copies or substantial portions of the Materials. 42 * 43 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 44 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 45 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 46 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 47 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 48 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 49 * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. 50 * 51 */ 52 #ifndef __SND_COMPRESS_PARAMS_H 53 #define __SND_COMPRESS_PARAMS_H 54 55 #include <linux/types.h> 56 57 /* AUDIO CODECS SUPPORTED */ 58 #define MAX_NUM_CODECS 32 59 #define MAX_NUM_CODEC_DESCRIPTORS 32 60 #define MAX_NUM_BITRATES 32 61 #define MAX_NUM_SAMPLE_RATES 32 62 63 /* Codecs are listed linearly to allow for extensibility */ 64 #define SND_AUDIOCODEC_PCM ((__u32) 0x00000001) 65 #define SND_AUDIOCODEC_MP3 ((__u32) 0x00000002) 66 #define SND_AUDIOCODEC_AMR ((__u32) 0x00000003) 67 #define SND_AUDIOCODEC_AMRWB ((__u32) 0x00000004) 68 #define SND_AUDIOCODEC_AMRWBPLUS ((__u32) 0x00000005) 69 #define SND_AUDIOCODEC_AAC ((__u32) 0x00000006) 70 #define SND_AUDIOCODEC_WMA ((__u32) 0x00000007) 71 #define SND_AUDIOCODEC_REAL ((__u32) 0x00000008) 72 #define SND_AUDIOCODEC_VORBIS ((__u32) 0x00000009) 73 #define SND_AUDIOCODEC_FLAC ((__u32) 0x0000000A) 74 #define SND_AUDIOCODEC_IEC61937 ((__u32) 0x0000000B) 75 #define SND_AUDIOCODEC_G723_1 ((__u32) 0x0000000C) 76 #define SND_AUDIOCODEC_G729 ((__u32) 0x0000000D) 77 #define SND_AUDIOCODEC_BESPOKE ((__u32) 0x0000000E) 78 #define SND_AUDIOCODEC_MAX SND_AUDIOCODEC_BESPOKE 79 80 /* 81 * Profile and modes are listed with bit masks. This allows for a 82 * more compact representation of fields that will not evolve 83 * (in contrast to the list of codecs) 84 */ 85 86 #define SND_AUDIOPROFILE_PCM ((__u32) 0x00000001) 87 88 /* MP3 modes are only useful for encoders */ 89 #define SND_AUDIOCHANMODE_MP3_MONO ((__u32) 0x00000001) 90 #define SND_AUDIOCHANMODE_MP3_STEREO ((__u32) 0x00000002) 91 #define SND_AUDIOCHANMODE_MP3_JOINTSTEREO ((__u32) 0x00000004) 92 #define SND_AUDIOCHANMODE_MP3_DUAL ((__u32) 0x00000008) 93 94 #define SND_AUDIOPROFILE_AMR ((__u32) 0x00000001) 95 96 /* AMR modes are only useful for encoders */ 97 #define SND_AUDIOMODE_AMR_DTX_OFF ((__u32) 0x00000001) 98 #define SND_AUDIOMODE_AMR_VAD1 ((__u32) 0x00000002) 99 #define SND_AUDIOMODE_AMR_VAD2 ((__u32) 0x00000004) 100 101 #define SND_AUDIOSTREAMFORMAT_UNDEFINED ((__u32) 0x00000000) 102 #define SND_AUDIOSTREAMFORMAT_CONFORMANCE ((__u32) 0x00000001) 103 #define SND_AUDIOSTREAMFORMAT_IF1 ((__u32) 0x00000002) 104 #define SND_AUDIOSTREAMFORMAT_IF2 ((__u32) 0x00000004) 105 #define SND_AUDIOSTREAMFORMAT_FSF ((__u32) 0x00000008) 106 #define SND_AUDIOSTREAMFORMAT_RTPPAYLOAD ((__u32) 0x00000010) 107 #define SND_AUDIOSTREAMFORMAT_ITU ((__u32) 0x00000020) 108 109 #define SND_AUDIOPROFILE_AMRWB ((__u32) 0x00000001) 110 111 /* AMRWB modes are only useful for encoders */ 112 #define SND_AUDIOMODE_AMRWB_DTX_OFF ((__u32) 0x00000001) 113 #define SND_AUDIOMODE_AMRWB_VAD1 ((__u32) 0x00000002) 114 #define SND_AUDIOMODE_AMRWB_VAD2 ((__u32) 0x00000004) 115 116 #define SND_AUDIOPROFILE_AMRWBPLUS ((__u32) 0x00000001) 117 118 #define SND_AUDIOPROFILE_AAC ((__u32) 0x00000001) 119 120 /* AAC modes are required for encoders and decoders */ 121 #define SND_AUDIOMODE_AAC_MAIN ((__u32) 0x00000001) 122 #define SND_AUDIOMODE_AAC_LC ((__u32) 0x00000002) 123 #define SND_AUDIOMODE_AAC_SSR ((__u32) 0x00000004) 124 #define SND_AUDIOMODE_AAC_LTP ((__u32) 0x00000008) 125 #define SND_AUDIOMODE_AAC_HE ((__u32) 0x00000010) 126 #define SND_AUDIOMODE_AAC_SCALABLE ((__u32) 0x00000020) 127 #define SND_AUDIOMODE_AAC_ERLC ((__u32) 0x00000040) 128 #define SND_AUDIOMODE_AAC_LD ((__u32) 0x00000080) 129 #define SND_AUDIOMODE_AAC_HE_PS ((__u32) 0x00000100) 130 #define SND_AUDIOMODE_AAC_HE_MPS ((__u32) 0x00000200) 131 132 /* AAC formats are required for encoders and decoders */ 133 #define SND_AUDIOSTREAMFORMAT_MP2ADTS ((__u32) 0x00000001) 134 #define SND_AUDIOSTREAMFORMAT_MP4ADTS ((__u32) 0x00000002) 135 #define SND_AUDIOSTREAMFORMAT_MP4LOAS ((__u32) 0x00000004) 136 #define SND_AUDIOSTREAMFORMAT_MP4LATM ((__u32) 0x00000008) 137 #define SND_AUDIOSTREAMFORMAT_ADIF ((__u32) 0x00000010) 138 #define SND_AUDIOSTREAMFORMAT_MP4FF ((__u32) 0x00000020) 139 #define SND_AUDIOSTREAMFORMAT_RAW ((__u32) 0x00000040) 140 141 #define SND_AUDIOPROFILE_WMA7 ((__u32) 0x00000001) 142 #define SND_AUDIOPROFILE_WMA8 ((__u32) 0x00000002) 143 #define SND_AUDIOPROFILE_WMA9 ((__u32) 0x00000004) 144 #define SND_AUDIOPROFILE_WMA10 ((__u32) 0x00000008) 145 146 #define SND_AUDIOMODE_WMA_LEVEL1 ((__u32) 0x00000001) 147 #define SND_AUDIOMODE_WMA_LEVEL2 ((__u32) 0x00000002) 148 #define SND_AUDIOMODE_WMA_LEVEL3 ((__u32) 0x00000004) 149 #define SND_AUDIOMODE_WMA_LEVEL4 ((__u32) 0x00000008) 150 #define SND_AUDIOMODE_WMAPRO_LEVELM0 ((__u32) 0x00000010) 151 #define SND_AUDIOMODE_WMAPRO_LEVELM1 ((__u32) 0x00000020) 152 #define SND_AUDIOMODE_WMAPRO_LEVELM2 ((__u32) 0x00000040) 153 #define SND_AUDIOMODE_WMAPRO_LEVELM3 ((__u32) 0x00000080) 154 155 #define SND_AUDIOSTREAMFORMAT_WMA_ASF ((__u32) 0x00000001) 156 /* 157 * Some implementations strip the ASF header and only send ASF packets 158 * to the DSP 159 */ 160 #define SND_AUDIOSTREAMFORMAT_WMA_NOASF_HDR ((__u32) 0x00000002) 161 162 #define SND_AUDIOPROFILE_REALAUDIO ((__u32) 0x00000001) 163 164 #define SND_AUDIOMODE_REALAUDIO_G2 ((__u32) 0x00000001) 165 #define SND_AUDIOMODE_REALAUDIO_8 ((__u32) 0x00000002) 166 #define SND_AUDIOMODE_REALAUDIO_10 ((__u32) 0x00000004) 167 #define SND_AUDIOMODE_REALAUDIO_SURROUND ((__u32) 0x00000008) 168 169 #define SND_AUDIOPROFILE_VORBIS ((__u32) 0x00000001) 170 171 #define SND_AUDIOMODE_VORBIS ((__u32) 0x00000001) 172 173 #define SND_AUDIOPROFILE_FLAC ((__u32) 0x00000001) 174 175 /* 176 * Define quality levels for FLAC encoders, from LEVEL0 (fast) 177 * to LEVEL8 (best) 178 */ 179 #define SND_AUDIOMODE_FLAC_LEVEL0 ((__u32) 0x00000001) 180 #define SND_AUDIOMODE_FLAC_LEVEL1 ((__u32) 0x00000002) 181 #define SND_AUDIOMODE_FLAC_LEVEL2 ((__u32) 0x00000004) 182 #define SND_AUDIOMODE_FLAC_LEVEL3 ((__u32) 0x00000008) 183 #define SND_AUDIOMODE_FLAC_LEVEL4 ((__u32) 0x00000010) 184 #define SND_AUDIOMODE_FLAC_LEVEL5 ((__u32) 0x00000020) 185 #define SND_AUDIOMODE_FLAC_LEVEL6 ((__u32) 0x00000040) 186 #define SND_AUDIOMODE_FLAC_LEVEL7 ((__u32) 0x00000080) 187 #define SND_AUDIOMODE_FLAC_LEVEL8 ((__u32) 0x00000100) 188 189 #define SND_AUDIOSTREAMFORMAT_FLAC ((__u32) 0x00000001) 190 #define SND_AUDIOSTREAMFORMAT_FLAC_OGG ((__u32) 0x00000002) 191 192 /* IEC61937 payloads without CUVP and preambles */ 193 #define SND_AUDIOPROFILE_IEC61937 ((__u32) 0x00000001) 194 /* IEC61937 with S/PDIF preambles+CUVP bits in 32-bit containers */ 195 #define SND_AUDIOPROFILE_IEC61937_SPDIF ((__u32) 0x00000002) 196 197 /* 198 * IEC modes are mandatory for decoders. Format autodetection 199 * will only happen on the DSP side with mode 0. The PCM mode should 200 * not be used, the PCM codec should be used instead. 201 */ 202 #define SND_AUDIOMODE_IEC_REF_STREAM_HEADER ((__u32) 0x00000000) 203 #define SND_AUDIOMODE_IEC_LPCM ((__u32) 0x00000001) 204 #define SND_AUDIOMODE_IEC_AC3 ((__u32) 0x00000002) 205 #define SND_AUDIOMODE_IEC_MPEG1 ((__u32) 0x00000004) 206 #define SND_AUDIOMODE_IEC_MP3 ((__u32) 0x00000008) 207 #define SND_AUDIOMODE_IEC_MPEG2 ((__u32) 0x00000010) 208 #define SND_AUDIOMODE_IEC_AACLC ((__u32) 0x00000020) 209 #define SND_AUDIOMODE_IEC_DTS ((__u32) 0x00000040) 210 #define SND_AUDIOMODE_IEC_ATRAC ((__u32) 0x00000080) 211 #define SND_AUDIOMODE_IEC_SACD ((__u32) 0x00000100) 212 #define SND_AUDIOMODE_IEC_EAC3 ((__u32) 0x00000200) 213 #define SND_AUDIOMODE_IEC_DTS_HD ((__u32) 0x00000400) 214 #define SND_AUDIOMODE_IEC_MLP ((__u32) 0x00000800) 215 #define SND_AUDIOMODE_IEC_DST ((__u32) 0x00001000) 216 #define SND_AUDIOMODE_IEC_WMAPRO ((__u32) 0x00002000) 217 #define SND_AUDIOMODE_IEC_REF_CXT ((__u32) 0x00004000) 218 #define SND_AUDIOMODE_IEC_HE_AAC ((__u32) 0x00008000) 219 #define SND_AUDIOMODE_IEC_HE_AAC2 ((__u32) 0x00010000) 220 #define SND_AUDIOMODE_IEC_MPEG_SURROUND ((__u32) 0x00020000) 221 222 #define SND_AUDIOPROFILE_G723_1 ((__u32) 0x00000001) 223 224 #define SND_AUDIOMODE_G723_1_ANNEX_A ((__u32) 0x00000001) 225 #define SND_AUDIOMODE_G723_1_ANNEX_B ((__u32) 0x00000002) 226 #define SND_AUDIOMODE_G723_1_ANNEX_C ((__u32) 0x00000004) 227 228 #define SND_AUDIOPROFILE_G729 ((__u32) 0x00000001) 229 230 #define SND_AUDIOMODE_G729_ANNEX_A ((__u32) 0x00000001) 231 #define SND_AUDIOMODE_G729_ANNEX_B ((__u32) 0x00000002) 232 233 /* <FIXME: multichannel encoders aren't supported for now. Would need 234 an additional definition of channel arrangement> */ 235 236 /* VBR/CBR definitions */ 237 #define SND_RATECONTROLMODE_CONSTANTBITRATE ((__u32) 0x00000001) 238 #define SND_RATECONTROLMODE_VARIABLEBITRATE ((__u32) 0x00000002) 239 240 /* Encoder options */ 241 242 struct snd_enc_wma { 243 __u32 super_block_align; /* WMA Type-specific data */ 244 }; 245 246 247 /** 248 * struct snd_enc_vorbis 249 * @quality: Sets encoding quality to n, between -1 (low) and 10 (high). 250 * In the default mode of operation, the quality level is 3. 251 * Normal quality range is 0 - 10. 252 * @managed: Boolean. Set bitrate management mode. This turns off the 253 * normal VBR encoding, but allows hard or soft bitrate constraints to be 254 * enforced by the encoder. This mode can be slower, and may also be 255 * lower quality. It is primarily useful for streaming. 256 * @max_bit_rate: Enabled only if managed is TRUE 257 * @min_bit_rate: Enabled only if managed is TRUE 258 * @downmix: Boolean. Downmix input from stereo to mono (has no effect on 259 * non-stereo streams). Useful for lower-bitrate encoding. 260 * 261 * These options were extracted from the OpenMAX IL spec and Gstreamer vorbisenc 262 * properties 263 * 264 * For best quality users should specify VBR mode and set quality levels. 265 */ 266 267 struct snd_enc_vorbis { 268 __s32 quality; 269 __u32 managed; 270 __u32 max_bit_rate; 271 __u32 min_bit_rate; 272 __u32 downmix; 273 } __attribute__((packed, aligned(4))); 274 275 276 /** 277 * struct snd_enc_real 278 * @quant_bits: number of coupling quantization bits in the stream 279 * @start_region: coupling start region in the stream 280 * @num_regions: number of regions value 281 * 282 * These options were extracted from the OpenMAX IL spec 283 */ 284 285 struct snd_enc_real { 286 __u32 quant_bits; 287 __u32 start_region; 288 __u32 num_regions; 289 } __attribute__((packed, aligned(4))); 290 291 /** 292 * struct snd_enc_flac 293 * @num: serial number, valid only for OGG formats 294 * needs to be set by application 295 * @gain: Add replay gain tags 296 * 297 * These options were extracted from the FLAC online documentation 298 * at http://flac.sourceforge.net/documentation_tools_flac.html 299 * 300 * To make the API simpler, it is assumed that the user will select quality 301 * profiles. Additional options that affect encoding quality and speed can 302 * be added at a later stage if needed. 303 * 304 * By default the Subset format is used by encoders. 305 * 306 * TAGS such as pictures, etc, cannot be handled by an offloaded encoder and are 307 * not supported in this API. 308 */ 309 310 struct snd_enc_flac { 311 __u32 num; 312 __u32 gain; 313 } __attribute__((packed, aligned(4))); 314 315 struct snd_enc_generic { 316 __u32 bw; /* encoder bandwidth */ 317 __s32 reserved[15]; /* Can be used for SND_AUDIOCODEC_BESPOKE */ 318 } __attribute__((packed, aligned(4))); 319 320 union snd_codec_options { 321 struct snd_enc_wma wma; 322 struct snd_enc_vorbis vorbis; 323 struct snd_enc_real real; 324 struct snd_enc_flac flac; 325 struct snd_enc_generic generic; 326 } __attribute__((packed, aligned(4))); 327 328 /** struct snd_codec_desc - description of codec capabilities 329 * @max_ch: Maximum number of audio channels 330 * @sample_rates: Sampling rates in Hz, use values like 48000 for this 331 * @num_sample_rates: Number of valid values in sample_rates array 332 * @bit_rate: Indexed array containing supported bit rates 333 * @num_bitrates: Number of valid values in bit_rate array 334 * @rate_control: value is specified by SND_RATECONTROLMODE defines. 335 * @profiles: Supported profiles. See SND_AUDIOPROFILE defines. 336 * @modes: Supported modes. See SND_AUDIOMODE defines 337 * @formats: Supported formats. See SND_AUDIOSTREAMFORMAT defines 338 * @min_buffer: Minimum buffer size handled by codec implementation 339 * @reserved: reserved for future use 340 * 341 * This structure provides a scalar value for profiles, modes and stream 342 * format fields. 343 * If an implementation supports multiple combinations, they will be listed as 344 * codecs with different descriptors, for example there would be 2 descriptors 345 * for AAC-RAW and AAC-ADTS. 346 * This entails some redundancy but makes it easier to avoid invalid 347 * configurations. 348 * 349 */ 350 351 struct snd_codec_desc { 352 __u32 max_ch; 353 __u32 sample_rates[MAX_NUM_SAMPLE_RATES]; 354 __u32 num_sample_rates; 355 __u32 bit_rate[MAX_NUM_BITRATES]; 356 __u32 num_bitrates; 357 __u32 rate_control; 358 __u32 profiles; 359 __u32 modes; 360 __u32 formats; 361 __u32 min_buffer; 362 __u32 reserved[15]; 363 } __attribute__((packed, aligned(4))); 364 365 /** struct snd_codec 366 * @id: Identifies the supported audio encoder/decoder. 367 * See SND_AUDIOCODEC macros. 368 * @ch_in: Number of input audio channels 369 * @ch_out: Number of output channels. In case of contradiction between 370 * this field and the channelMode field, the channelMode field 371 * overrides. 372 * @sample_rate: Audio sample rate of input data in Hz, use values like 48000 373 * for this. 374 * @bit_rate: Bitrate of encoded data. May be ignored by decoders 375 * @rate_control: Encoding rate control. See SND_RATECONTROLMODE defines. 376 * Encoders may rely on profiles for quality levels. 377 * May be ignored by decoders. 378 * @profile: Mandatory for encoders, can be mandatory for specific 379 * decoders as well. See SND_AUDIOPROFILE defines. 380 * @level: Supported level (Only used by WMA at the moment) 381 * @ch_mode: Channel mode for encoder. See SND_AUDIOCHANMODE defines 382 * @format: Format of encoded bistream. Mandatory when defined. 383 * See SND_AUDIOSTREAMFORMAT defines. 384 * @align: Block alignment in bytes of an audio sample. 385 * Only required for PCM or IEC formats. 386 * @options: encoder-specific settings 387 * @reserved: reserved for future use 388 */ 389 390 struct snd_codec { 391 __u32 id; 392 __u32 ch_in; 393 __u32 ch_out; 394 __u32 sample_rate; 395 __u32 bit_rate; 396 __u32 rate_control; 397 __u32 profile; 398 __u32 level; 399 __u32 ch_mode; 400 __u32 format; 401 __u32 align; 402 union snd_codec_options options; 403 __u32 reserved[3]; 404 } __attribute__((packed, aligned(4))); 405 406 #endif 407