include/uapi/sound/compress_params.h

   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