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 * The definitions in this file are derived from the OpenMAX AL version 1.1 13 * and OpenMAX IL v 1.1.2 header files which contain the copyright notice below 14 * and are licensed under the MIT license. 15 * 16 * Copyright (c) 2007-2010 The Khronos Group Inc. 17 */ 18 #ifndef __SND_COMPRESS_PARAMS_H 19 #define __SND_COMPRESS_PARAMS_H 20 21 #include <linux/types.h> 22 23 /* AUDIO CODECS SUPPORTED */ 24 #define MAX_NUM_CODECS 32 25 #define MAX_NUM_CODEC_DESCRIPTORS 32 26 #define MAX_NUM_BITRATES 32 27 #define MAX_NUM_SAMPLE_RATES 32 28 29 /* Codecs are listed linearly to allow for extensibility */ 30 #define SND_AUDIOCODEC_PCM ((__u32) 0x00000001) 31 #define SND_AUDIOCODEC_MP3 ((__u32) 0x00000002) 32 #define SND_AUDIOCODEC_AMR ((__u32) 0x00000003) 33 #define SND_AUDIOCODEC_AMRWB ((__u32) 0x00000004) 34 #define SND_AUDIOCODEC_AMRWBPLUS ((__u32) 0x00000005) 35 #define SND_AUDIOCODEC_AAC ((__u32) 0x00000006) 36 #define SND_AUDIOCODEC_WMA ((__u32) 0x00000007) 37 #define SND_AUDIOCODEC_REAL ((__u32) 0x00000008) 38 #define SND_AUDIOCODEC_VORBIS ((__u32) 0x00000009) 39 #define SND_AUDIOCODEC_FLAC ((__u32) 0x0000000A) 40 #define SND_AUDIOCODEC_IEC61937 ((__u32) 0x0000000B) 41 #define SND_AUDIOCODEC_G723_1 ((__u32) 0x0000000C) 42 #define SND_AUDIOCODEC_G729 ((__u32) 0x0000000D) 43 #define SND_AUDIOCODEC_BESPOKE ((__u32) 0x0000000E) 44 #define SND_AUDIOCODEC_ALAC ((__u32) 0x0000000F) 45 #define SND_AUDIOCODEC_APE ((__u32) 0x00000010) 46 #define SND_AUDIOCODEC_MAX SND_AUDIOCODEC_APE 47 48 /* 49 * Profile and modes are listed with bit masks. This allows for a 50 * more compact representation of fields that will not evolve 51 * (in contrast to the list of codecs) 52 */ 53 54 #define SND_AUDIOPROFILE_PCM ((__u32) 0x00000001) 55 56 /* MP3 modes are only useful for encoders */ 57 #define SND_AUDIOCHANMODE_MP3_MONO ((__u32) 0x00000001) 58 #define SND_AUDIOCHANMODE_MP3_STEREO ((__u32) 0x00000002) 59 #define SND_AUDIOCHANMODE_MP3_JOINTSTEREO ((__u32) 0x00000004) 60 #define SND_AUDIOCHANMODE_MP3_DUAL ((__u32) 0x00000008) 61 62 #define SND_AUDIOPROFILE_AMR ((__u32) 0x00000001) 63 64 /* AMR modes are only useful for encoders */ 65 #define SND_AUDIOMODE_AMR_DTX_OFF ((__u32) 0x00000001) 66 #define SND_AUDIOMODE_AMR_VAD1 ((__u32) 0x00000002) 67 #define SND_AUDIOMODE_AMR_VAD2 ((__u32) 0x00000004) 68 69 #define SND_AUDIOSTREAMFORMAT_UNDEFINED ((__u32) 0x00000000) 70 #define SND_AUDIOSTREAMFORMAT_CONFORMANCE ((__u32) 0x00000001) 71 #define SND_AUDIOSTREAMFORMAT_IF1 ((__u32) 0x00000002) 72 #define SND_AUDIOSTREAMFORMAT_IF2 ((__u32) 0x00000004) 73 #define SND_AUDIOSTREAMFORMAT_FSF ((__u32) 0x00000008) 74 #define SND_AUDIOSTREAMFORMAT_RTPPAYLOAD ((__u32) 0x00000010) 75 #define SND_AUDIOSTREAMFORMAT_ITU ((__u32) 0x00000020) 76 77 #define SND_AUDIOPROFILE_AMRWB ((__u32) 0x00000001) 78 79 /* AMRWB modes are only useful for encoders */ 80 #define SND_AUDIOMODE_AMRWB_DTX_OFF ((__u32) 0x00000001) 81 #define SND_AUDIOMODE_AMRWB_VAD1 ((__u32) 0x00000002) 82 #define SND_AUDIOMODE_AMRWB_VAD2 ((__u32) 0x00000004) 83 84 #define SND_AUDIOPROFILE_AMRWBPLUS ((__u32) 0x00000001) 85 86 #define SND_AUDIOPROFILE_AAC ((__u32) 0x00000001) 87 88 /* AAC modes are required for encoders and decoders */ 89 #define SND_AUDIOMODE_AAC_MAIN ((__u32) 0x00000001) 90 #define SND_AUDIOMODE_AAC_LC ((__u32) 0x00000002) 91 #define SND_AUDIOMODE_AAC_SSR ((__u32) 0x00000004) 92 #define SND_AUDIOMODE_AAC_LTP ((__u32) 0x00000008) 93 #define SND_AUDIOMODE_AAC_HE ((__u32) 0x00000010) 94 #define SND_AUDIOMODE_AAC_SCALABLE ((__u32) 0x00000020) 95 #define SND_AUDIOMODE_AAC_ERLC ((__u32) 0x00000040) 96 #define SND_AUDIOMODE_AAC_LD ((__u32) 0x00000080) 97 #define SND_AUDIOMODE_AAC_HE_PS ((__u32) 0x00000100) 98 #define SND_AUDIOMODE_AAC_HE_MPS ((__u32) 0x00000200) 99 100 /* AAC formats are required for encoders and decoders */ 101 #define SND_AUDIOSTREAMFORMAT_MP2ADTS ((__u32) 0x00000001) 102 #define SND_AUDIOSTREAMFORMAT_MP4ADTS ((__u32) 0x00000002) 103 #define SND_AUDIOSTREAMFORMAT_MP4LOAS ((__u32) 0x00000004) 104 #define SND_AUDIOSTREAMFORMAT_MP4LATM ((__u32) 0x00000008) 105 #define SND_AUDIOSTREAMFORMAT_ADIF ((__u32) 0x00000010) 106 #define SND_AUDIOSTREAMFORMAT_MP4FF ((__u32) 0x00000020) 107 #define SND_AUDIOSTREAMFORMAT_RAW ((__u32) 0x00000040) 108 109 #define SND_AUDIOPROFILE_WMA7 ((__u32) 0x00000001) 110 #define SND_AUDIOPROFILE_WMA8 ((__u32) 0x00000002) 111 #define SND_AUDIOPROFILE_WMA9 ((__u32) 0x00000004) 112 #define SND_AUDIOPROFILE_WMA10 ((__u32) 0x00000008) 113 #define SND_AUDIOPROFILE_WMA9_PRO ((__u32) 0x00000010) 114 #define SND_AUDIOPROFILE_WMA9_LOSSLESS ((__u32) 0x00000020) 115 #define SND_AUDIOPROFILE_WMA10_LOSSLESS ((__u32) 0x00000040) 116 117 #define SND_AUDIOMODE_WMA_LEVEL1 ((__u32) 0x00000001) 118 #define SND_AUDIOMODE_WMA_LEVEL2 ((__u32) 0x00000002) 119 #define SND_AUDIOMODE_WMA_LEVEL3 ((__u32) 0x00000004) 120 #define SND_AUDIOMODE_WMA_LEVEL4 ((__u32) 0x00000008) 121 #define SND_AUDIOMODE_WMAPRO_LEVELM0 ((__u32) 0x00000010) 122 #define SND_AUDIOMODE_WMAPRO_LEVELM1 ((__u32) 0x00000020) 123 #define SND_AUDIOMODE_WMAPRO_LEVELM2 ((__u32) 0x00000040) 124 #define SND_AUDIOMODE_WMAPRO_LEVELM3 ((__u32) 0x00000080) 125 126 #define SND_AUDIOSTREAMFORMAT_WMA_ASF ((__u32) 0x00000001) 127 /* 128 * Some implementations strip the ASF header and only send ASF packets 129 * to the DSP 130 */ 131 #define SND_AUDIOSTREAMFORMAT_WMA_NOASF_HDR ((__u32) 0x00000002) 132 133 #define SND_AUDIOPROFILE_REALAUDIO ((__u32) 0x00000001) 134 135 #define SND_AUDIOMODE_REALAUDIO_G2 ((__u32) 0x00000001) 136 #define SND_AUDIOMODE_REALAUDIO_8 ((__u32) 0x00000002) 137 #define SND_AUDIOMODE_REALAUDIO_10 ((__u32) 0x00000004) 138 #define SND_AUDIOMODE_REALAUDIO_SURROUND ((__u32) 0x00000008) 139 140 #define SND_AUDIOPROFILE_VORBIS ((__u32) 0x00000001) 141 142 #define SND_AUDIOMODE_VORBIS ((__u32) 0x00000001) 143 144 #define SND_AUDIOPROFILE_FLAC ((__u32) 0x00000001) 145 146 /* 147 * Define quality levels for FLAC encoders, from LEVEL0 (fast) 148 * to LEVEL8 (best) 149 */ 150 #define SND_AUDIOMODE_FLAC_LEVEL0 ((__u32) 0x00000001) 151 #define SND_AUDIOMODE_FLAC_LEVEL1 ((__u32) 0x00000002) 152 #define SND_AUDIOMODE_FLAC_LEVEL2 ((__u32) 0x00000004) 153 #define SND_AUDIOMODE_FLAC_LEVEL3 ((__u32) 0x00000008) 154 #define SND_AUDIOMODE_FLAC_LEVEL4 ((__u32) 0x00000010) 155 #define SND_AUDIOMODE_FLAC_LEVEL5 ((__u32) 0x00000020) 156 #define SND_AUDIOMODE_FLAC_LEVEL6 ((__u32) 0x00000040) 157 #define SND_AUDIOMODE_FLAC_LEVEL7 ((__u32) 0x00000080) 158 #define SND_AUDIOMODE_FLAC_LEVEL8 ((__u32) 0x00000100) 159 160 #define SND_AUDIOSTREAMFORMAT_FLAC ((__u32) 0x00000001) 161 #define SND_AUDIOSTREAMFORMAT_FLAC_OGG ((__u32) 0x00000002) 162 163 /* IEC61937 payloads without CUVP and preambles */ 164 #define SND_AUDIOPROFILE_IEC61937 ((__u32) 0x00000001) 165 /* IEC61937 with S/PDIF preambles+CUVP bits in 32-bit containers */ 166 #define SND_AUDIOPROFILE_IEC61937_SPDIF ((__u32) 0x00000002) 167 168 /* 169 * IEC modes are mandatory for decoders. Format autodetection 170 * will only happen on the DSP side with mode 0. The PCM mode should 171 * not be used, the PCM codec should be used instead. 172 */ 173 #define SND_AUDIOMODE_IEC_REF_STREAM_HEADER ((__u32) 0x00000000) 174 #define SND_AUDIOMODE_IEC_LPCM ((__u32) 0x00000001) 175 #define SND_AUDIOMODE_IEC_AC3 ((__u32) 0x00000002) 176 #define SND_AUDIOMODE_IEC_MPEG1 ((__u32) 0x00000004) 177 #define SND_AUDIOMODE_IEC_MP3 ((__u32) 0x00000008) 178 #define SND_AUDIOMODE_IEC_MPEG2 ((__u32) 0x00000010) 179 #define SND_AUDIOMODE_IEC_AACLC ((__u32) 0x00000020) 180 #define SND_AUDIOMODE_IEC_DTS ((__u32) 0x00000040) 181 #define SND_AUDIOMODE_IEC_ATRAC ((__u32) 0x00000080) 182 #define SND_AUDIOMODE_IEC_SACD ((__u32) 0x00000100) 183 #define SND_AUDIOMODE_IEC_EAC3 ((__u32) 0x00000200) 184 #define SND_AUDIOMODE_IEC_DTS_HD ((__u32) 0x00000400) 185 #define SND_AUDIOMODE_IEC_MLP ((__u32) 0x00000800) 186 #define SND_AUDIOMODE_IEC_DST ((__u32) 0x00001000) 187 #define SND_AUDIOMODE_IEC_WMAPRO ((__u32) 0x00002000) 188 #define SND_AUDIOMODE_IEC_REF_CXT ((__u32) 0x00004000) 189 #define SND_AUDIOMODE_IEC_HE_AAC ((__u32) 0x00008000) 190 #define SND_AUDIOMODE_IEC_HE_AAC2 ((__u32) 0x00010000) 191 #define SND_AUDIOMODE_IEC_MPEG_SURROUND ((__u32) 0x00020000) 192 193 #define SND_AUDIOPROFILE_G723_1 ((__u32) 0x00000001) 194 195 #define SND_AUDIOMODE_G723_1_ANNEX_A ((__u32) 0x00000001) 196 #define SND_AUDIOMODE_G723_1_ANNEX_B ((__u32) 0x00000002) 197 #define SND_AUDIOMODE_G723_1_ANNEX_C ((__u32) 0x00000004) 198 199 #define SND_AUDIOPROFILE_G729 ((__u32) 0x00000001) 200 201 #define SND_AUDIOMODE_G729_ANNEX_A ((__u32) 0x00000001) 202 #define SND_AUDIOMODE_G729_ANNEX_B ((__u32) 0x00000002) 203 204 /* <FIXME: multichannel encoders aren't supported for now. Would need 205 an additional definition of channel arrangement> */ 206 207 /* VBR/CBR definitions */ 208 #define SND_RATECONTROLMODE_CONSTANTBITRATE ((__u32) 0x00000001) 209 #define SND_RATECONTROLMODE_VARIABLEBITRATE ((__u32) 0x00000002) 210 211 /* Encoder options */ 212 213 struct snd_enc_wma { 214 __u32 super_block_align; /* WMA Type-specific data */ 215 }; 216 217 218 /** 219 * struct snd_enc_vorbis - Vorbis encoder parameters 220 * @quality: Sets encoding quality to n, between -1 (low) and 10 (high). 221 * In the default mode of operation, the quality level is 3. 222 * Normal quality range is 0 - 10. 223 * @managed: Boolean. Set bitrate management mode. This turns off the 224 * normal VBR encoding, but allows hard or soft bitrate constraints to be 225 * enforced by the encoder. This mode can be slower, and may also be 226 * lower quality. It is primarily useful for streaming. 227 * @max_bit_rate: Enabled only if managed is TRUE 228 * @min_bit_rate: Enabled only if managed is TRUE 229 * @downmix: Boolean. Downmix input from stereo to mono (has no effect on 230 * non-stereo streams). Useful for lower-bitrate encoding. 231 * 232 * These options were extracted from the OpenMAX IL spec and Gstreamer vorbisenc 233 * properties 234 * 235 * For best quality users should specify VBR mode and set quality levels. 236 */ 237 238 struct snd_enc_vorbis { 239 __s32 quality; 240 __u32 managed; 241 __u32 max_bit_rate; 242 __u32 min_bit_rate; 243 __u32 downmix; 244 } __attribute__((packed, aligned(4))); 245 246 247 /** 248 * struct snd_enc_real - RealAudio encoder parameters 249 * @quant_bits: number of coupling quantization bits in the stream 250 * @start_region: coupling start region in the stream 251 * @num_regions: number of regions value 252 * 253 * These options were extracted from the OpenMAX IL spec 254 */ 255 256 struct snd_enc_real { 257 __u32 quant_bits; 258 __u32 start_region; 259 __u32 num_regions; 260 } __attribute__((packed, aligned(4))); 261 262 /** 263 * struct snd_enc_flac - FLAC encoder parameters 264 * @num: serial number, valid only for OGG formats 265 * needs to be set by application 266 * @gain: Add replay gain tags 267 * 268 * These options were extracted from the FLAC online documentation 269 * at http://flac.sourceforge.net/documentation_tools_flac.html 270 * 271 * To make the API simpler, it is assumed that the user will select quality 272 * profiles. Additional options that affect encoding quality and speed can 273 * be added at a later stage if needed. 274 * 275 * By default the Subset format is used by encoders. 276 * 277 * TAGS such as pictures, etc, cannot be handled by an offloaded encoder and are 278 * not supported in this API. 279 */ 280 281 struct snd_enc_flac { 282 __u32 num; 283 __u32 gain; 284 } __attribute__((packed, aligned(4))); 285 286 struct snd_enc_generic { 287 __u32 bw; /* encoder bandwidth */ 288 __s32 reserved[15]; /* Can be used for SND_AUDIOCODEC_BESPOKE */ 289 } __attribute__((packed, aligned(4))); 290 291 struct snd_dec_flac { 292 __u16 sample_size; 293 __u16 min_blk_size; 294 __u16 max_blk_size; 295 __u16 min_frame_size; 296 __u16 max_frame_size; 297 __u16 reserved; 298 } __attribute__((packed, aligned(4))); 299 300 struct snd_dec_wma { 301 __u32 encoder_option; 302 __u32 adv_encoder_option; 303 __u32 adv_encoder_option2; 304 __u32 reserved; 305 } __attribute__((packed, aligned(4))); 306 307 struct snd_dec_alac { 308 __u32 frame_length; 309 __u8 compatible_version; 310 __u8 pb; 311 __u8 mb; 312 __u8 kb; 313 __u32 max_run; 314 __u32 max_frame_bytes; 315 } __attribute__((packed, aligned(4))); 316 317 struct snd_dec_ape { 318 __u16 compatible_version; 319 __u16 compression_level; 320 __u32 format_flags; 321 __u32 blocks_per_frame; 322 __u32 final_frame_blocks; 323 __u32 total_frames; 324 __u32 seek_table_present; 325 } __attribute__((packed, aligned(4))); 326 327 union snd_codec_options { 328 struct snd_enc_wma wma; 329 struct snd_enc_vorbis vorbis; 330 struct snd_enc_real real; 331 struct snd_enc_flac flac; 332 struct snd_enc_generic generic; 333 struct snd_dec_flac flac_d; 334 struct snd_dec_wma wma_d; 335 struct snd_dec_alac alac_d; 336 struct snd_dec_ape ape_d; 337 } __attribute__((packed, aligned(4))); 338 339 /** struct snd_codec_desc - description of codec capabilities 340 * @max_ch: Maximum number of audio channels 341 * @sample_rates: Sampling rates in Hz, use values like 48000 for this 342 * @num_sample_rates: Number of valid values in sample_rates array 343 * @bit_rate: Indexed array containing supported bit rates 344 * @num_bitrates: Number of valid values in bit_rate array 345 * @rate_control: value is specified by SND_RATECONTROLMODE defines. 346 * @profiles: Supported profiles. See SND_AUDIOPROFILE defines. 347 * @modes: Supported modes. See SND_AUDIOMODE defines 348 * @formats: Supported formats. See SND_AUDIOSTREAMFORMAT defines 349 * @min_buffer: Minimum buffer size handled by codec implementation 350 * @reserved: reserved for future use 351 * 352 * This structure provides a scalar value for profiles, modes and stream 353 * format fields. 354 * If an implementation supports multiple combinations, they will be listed as 355 * codecs with different descriptors, for example there would be 2 descriptors 356 * for AAC-RAW and AAC-ADTS. 357 * This entails some redundancy but makes it easier to avoid invalid 358 * configurations. 359 * 360 */ 361 362 struct snd_codec_desc { 363 __u32 max_ch; 364 __u32 sample_rates[MAX_NUM_SAMPLE_RATES]; 365 __u32 num_sample_rates; 366 __u32 bit_rate[MAX_NUM_BITRATES]; 367 __u32 num_bitrates; 368 __u32 rate_control; 369 __u32 profiles; 370 __u32 modes; 371 __u32 formats; 372 __u32 min_buffer; 373 __u32 reserved[15]; 374 } __attribute__((packed, aligned(4))); 375 376 /** struct snd_codec 377 * @id: Identifies the supported audio encoder/decoder. 378 * See SND_AUDIOCODEC macros. 379 * @ch_in: Number of input audio channels 380 * @ch_out: Number of output channels. In case of contradiction between 381 * this field and the channelMode field, the channelMode field 382 * overrides. 383 * @sample_rate: Audio sample rate of input data in Hz, use values like 48000 384 * for this. 385 * @bit_rate: Bitrate of encoded data. May be ignored by decoders 386 * @rate_control: Encoding rate control. See SND_RATECONTROLMODE defines. 387 * Encoders may rely on profiles for quality levels. 388 * May be ignored by decoders. 389 * @profile: Mandatory for encoders, can be mandatory for specific 390 * decoders as well. See SND_AUDIOPROFILE defines. 391 * @level: Supported level (Only used by WMA at the moment) 392 * @ch_mode: Channel mode for encoder. See SND_AUDIOCHANMODE defines 393 * @format: Format of encoded bistream. Mandatory when defined. 394 * See SND_AUDIOSTREAMFORMAT defines. 395 * @align: Block alignment in bytes of an audio sample. 396 * Only required for PCM or IEC formats. 397 * @options: encoder-specific settings 398 * @reserved: reserved for future use 399 */ 400 401 struct snd_codec { 402 __u32 id; 403 __u32 ch_in; 404 __u32 ch_out; 405 __u32 sample_rate; 406 __u32 bit_rate; 407 __u32 rate_control; 408 __u32 profile; 409 __u32 level; 410 __u32 ch_mode; 411 __u32 format; 412 __u32 align; 413 union snd_codec_options options; 414 __u32 reserved[3]; 415 } __attribute__((packed, aligned(4))); 416 417 #endif 418