1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
|
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) AND MIT) */
/*
* compress_params.h - codec types and parameters for compressed data
* streaming interface
*
* Copyright (C) 2011 Intel Corporation
* Authors: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
* Vinod Koul <vinod.koul@linux.intel.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* The definitions in this file are derived from the OpenMAX AL version 1.1
* and OpenMAX IL v 1.1.2 header files which contain the copyright notice below
* and are licensed under the MIT license.
*
* Copyright (c) 2007-2010 The Khronos Group Inc.
*/
#ifndef __SND_COMPRESS_PARAMS_H
#define __SND_COMPRESS_PARAMS_H
#include <linux/types.h>
/* AUDIO CODECS SUPPORTED */
#define MAX_NUM_CODECS 32
#define MAX_NUM_CODEC_DESCRIPTORS 32
#define MAX_NUM_BITRATES 32
#define MAX_NUM_SAMPLE_RATES 32
/* Codecs are listed linearly to allow for extensibility */
#define SND_AUDIOCODEC_PCM ((__u32) 0x00000001)
#define SND_AUDIOCODEC_MP3 ((__u32) 0x00000002)
#define SND_AUDIOCODEC_AMR ((__u32) 0x00000003)
#define SND_AUDIOCODEC_AMRWB ((__u32) 0x00000004)
#define SND_AUDIOCODEC_AMRWBPLUS ((__u32) 0x00000005)
#define SND_AUDIOCODEC_AAC ((__u32) 0x00000006)
#define SND_AUDIOCODEC_WMA ((__u32) 0x00000007)
#define SND_AUDIOCODEC_REAL ((__u32) 0x00000008)
#define SND_AUDIOCODEC_VORBIS ((__u32) 0x00000009)
#define SND_AUDIOCODEC_FLAC ((__u32) 0x0000000A)
#define SND_AUDIOCODEC_IEC61937 ((__u32) 0x0000000B)
#define SND_AUDIOCODEC_G723_1 ((__u32) 0x0000000C)
#define SND_AUDIOCODEC_G729 ((__u32) 0x0000000D)
#define SND_AUDIOCODEC_BESPOKE ((__u32) 0x0000000E)
#define SND_AUDIOCODEC_ALAC ((__u32) 0x0000000F)
#define SND_AUDIOCODEC_APE ((__u32) 0x00000010)
#define SND_AUDIOCODEC_MAX SND_AUDIOCODEC_APE
/*
* Profile and modes are listed with bit masks. This allows for a
* more compact representation of fields that will not evolve
* (in contrast to the list of codecs)
*/
#define SND_AUDIOPROFILE_PCM ((__u32) 0x00000001)
/* MP3 modes are only useful for encoders */
#define SND_AUDIOCHANMODE_MP3_MONO ((__u32) 0x00000001)
#define SND_AUDIOCHANMODE_MP3_STEREO ((__u32) 0x00000002)
#define SND_AUDIOCHANMODE_MP3_JOINTSTEREO ((__u32) 0x00000004)
#define SND_AUDIOCHANMODE_MP3_DUAL ((__u32) 0x00000008)
#define SND_AUDIOPROFILE_AMR ((__u32) 0x00000001)
/* AMR modes are only useful for encoders */
#define SND_AUDIOMODE_AMR_DTX_OFF ((__u32) 0x00000001)
#define SND_AUDIOMODE_AMR_VAD1 ((__u32) 0x00000002)
#define SND_AUDIOMODE_AMR_VAD2 ((__u32) 0x00000004)
#define SND_AUDIOSTREAMFORMAT_UNDEFINED ((__u32) 0x00000000)
#define SND_AUDIOSTREAMFORMAT_CONFORMANCE ((__u32) 0x00000001)
#define SND_AUDIOSTREAMFORMAT_IF1 ((__u32) 0x00000002)
#define SND_AUDIOSTREAMFORMAT_IF2 ((__u32) 0x00000004)
#define SND_AUDIOSTREAMFORMAT_FSF ((__u32) 0x00000008)
#define SND_AUDIOSTREAMFORMAT_RTPPAYLOAD ((__u32) 0x00000010)
#define SND_AUDIOSTREAMFORMAT_ITU ((__u32) 0x00000020)
#define SND_AUDIOPROFILE_AMRWB ((__u32) 0x00000001)
/* AMRWB modes are only useful for encoders */
#define SND_AUDIOMODE_AMRWB_DTX_OFF ((__u32) 0x00000001)
#define SND_AUDIOMODE_AMRWB_VAD1 ((__u32) 0x00000002)
#define SND_AUDIOMODE_AMRWB_VAD2 ((__u32) 0x00000004)
#define SND_AUDIOPROFILE_AMRWBPLUS ((__u32) 0x00000001)
#define SND_AUDIOPROFILE_AAC ((__u32) 0x00000001)
/* AAC modes are required for encoders and decoders */
#define SND_AUDIOMODE_AAC_MAIN ((__u32) 0x00000001)
#define SND_AUDIOMODE_AAC_LC ((__u32) 0x00000002)
#define SND_AUDIOMODE_AAC_SSR ((__u32) 0x00000004)
#define SND_AUDIOMODE_AAC_LTP ((__u32) 0x00000008)
#define SND_AUDIOMODE_AAC_HE ((__u32) 0x00000010)
#define SND_AUDIOMODE_AAC_SCALABLE ((__u32) 0x00000020)
#define SND_AUDIOMODE_AAC_ERLC ((__u32) 0x00000040)
#define SND_AUDIOMODE_AAC_LD ((__u32) 0x00000080)
#define SND_AUDIOMODE_AAC_HE_PS ((__u32) 0x00000100)
#define SND_AUDIOMODE_AAC_HE_MPS ((__u32) 0x00000200)
/* AAC formats are required for encoders and decoders */
#define SND_AUDIOSTREAMFORMAT_MP2ADTS ((__u32) 0x00000001)
#define SND_AUDIOSTREAMFORMAT_MP4ADTS ((__u32) 0x00000002)
#define SND_AUDIOSTREAMFORMAT_MP4LOAS ((__u32) 0x00000004)
#define SND_AUDIOSTREAMFORMAT_MP4LATM ((__u32) 0x00000008)
#define SND_AUDIOSTREAMFORMAT_ADIF ((__u32) 0x00000010)
#define SND_AUDIOSTREAMFORMAT_MP4FF ((__u32) 0x00000020)
#define SND_AUDIOSTREAMFORMAT_RAW ((__u32) 0x00000040)
#define SND_AUDIOPROFILE_WMA7 ((__u32) 0x00000001)
#define SND_AUDIOPROFILE_WMA8 ((__u32) 0x00000002)
#define SND_AUDIOPROFILE_WMA9 ((__u32) 0x00000004)
#define SND_AUDIOPROFILE_WMA10 ((__u32) 0x00000008)
#define SND_AUDIOPROFILE_WMA9_PRO ((__u32) 0x00000010)
#define SND_AUDIOPROFILE_WMA9_LOSSLESS ((__u32) 0x00000020)
#define SND_AUDIOPROFILE_WMA10_LOSSLESS ((__u32) 0x00000040)
#define SND_AUDIOMODE_WMA_LEVEL1 ((__u32) 0x00000001)
#define SND_AUDIOMODE_WMA_LEVEL2 ((__u32) 0x00000002)
#define SND_AUDIOMODE_WMA_LEVEL3 ((__u32) 0x00000004)
#define SND_AUDIOMODE_WMA_LEVEL4 ((__u32) 0x00000008)
#define SND_AUDIOMODE_WMAPRO_LEVELM0 ((__u32) 0x00000010)
#define SND_AUDIOMODE_WMAPRO_LEVELM1 ((__u32) 0x00000020)
#define SND_AUDIOMODE_WMAPRO_LEVELM2 ((__u32) 0x00000040)
#define SND_AUDIOMODE_WMAPRO_LEVELM3 ((__u32) 0x00000080)
#define SND_AUDIOSTREAMFORMAT_WMA_ASF ((__u32) 0x00000001)
/*
* Some implementations strip the ASF header and only send ASF packets
* to the DSP
*/
#define SND_AUDIOSTREAMFORMAT_WMA_NOASF_HDR ((__u32) 0x00000002)
#define SND_AUDIOPROFILE_REALAUDIO ((__u32) 0x00000001)
#define SND_AUDIOMODE_REALAUDIO_G2 ((__u32) 0x00000001)
#define SND_AUDIOMODE_REALAUDIO_8 ((__u32) 0x00000002)
#define SND_AUDIOMODE_REALAUDIO_10 ((__u32) 0x00000004)
#define SND_AUDIOMODE_REALAUDIO_SURROUND ((__u32) 0x00000008)
#define SND_AUDIOPROFILE_VORBIS ((__u32) 0x00000001)
#define SND_AUDIOMODE_VORBIS ((__u32) 0x00000001)
#define SND_AUDIOPROFILE_FLAC ((__u32) 0x00000001)
/*
* Define quality levels for FLAC encoders, from LEVEL0 (fast)
* to LEVEL8 (best)
*/
#define SND_AUDIOMODE_FLAC_LEVEL0 ((__u32) 0x00000001)
#define SND_AUDIOMODE_FLAC_LEVEL1 ((__u32) 0x00000002)
#define SND_AUDIOMODE_FLAC_LEVEL2 ((__u32) 0x00000004)
#define SND_AUDIOMODE_FLAC_LEVEL3 ((__u32) 0x00000008)
#define SND_AUDIOMODE_FLAC_LEVEL4 ((__u32) 0x00000010)
#define SND_AUDIOMODE_FLAC_LEVEL5 ((__u32) 0x00000020)
#define SND_AUDIOMODE_FLAC_LEVEL6 ((__u32) 0x00000040)
#define SND_AUDIOMODE_FLAC_LEVEL7 ((__u32) 0x00000080)
#define SND_AUDIOMODE_FLAC_LEVEL8 ((__u32) 0x00000100)
#define SND_AUDIOSTREAMFORMAT_FLAC ((__u32) 0x00000001)
#define SND_AUDIOSTREAMFORMAT_FLAC_OGG ((__u32) 0x00000002)
/* IEC61937 payloads without CUVP and preambles */
#define SND_AUDIOPROFILE_IEC61937 ((__u32) 0x00000001)
/* IEC61937 with S/PDIF preambles+CUVP bits in 32-bit containers */
#define SND_AUDIOPROFILE_IEC61937_SPDIF ((__u32) 0x00000002)
/*
* IEC modes are mandatory for decoders. Format autodetection
* will only happen on the DSP side with mode 0. The PCM mode should
* not be used, the PCM codec should be used instead.
*/
#define SND_AUDIOMODE_IEC_REF_STREAM_HEADER ((__u32) 0x00000000)
#define SND_AUDIOMODE_IEC_LPCM ((__u32) 0x00000001)
#define SND_AUDIOMODE_IEC_AC3 ((__u32) 0x00000002)
#define SND_AUDIOMODE_IEC_MPEG1 ((__u32) 0x00000004)
#define SND_AUDIOMODE_IEC_MP3 ((__u32) 0x00000008)
#define SND_AUDIOMODE_IEC_MPEG2 ((__u32) 0x00000010)
#define SND_AUDIOMODE_IEC_AACLC ((__u32) 0x00000020)
#define SND_AUDIOMODE_IEC_DTS ((__u32) 0x00000040)
#define SND_AUDIOMODE_IEC_ATRAC ((__u32) 0x00000080)
#define SND_AUDIOMODE_IEC_SACD ((__u32) 0x00000100)
#define SND_AUDIOMODE_IEC_EAC3 ((__u32) 0x00000200)
#define SND_AUDIOMODE_IEC_DTS_HD ((__u32) 0x00000400)
#define SND_AUDIOMODE_IEC_MLP ((__u32) 0x00000800)
#define SND_AUDIOMODE_IEC_DST ((__u32) 0x00001000)
#define SND_AUDIOMODE_IEC_WMAPRO ((__u32) 0x00002000)
#define SND_AUDIOMODE_IEC_REF_CXT ((__u32) 0x00004000)
#define SND_AUDIOMODE_IEC_HE_AAC ((__u32) 0x00008000)
#define SND_AUDIOMODE_IEC_HE_AAC2 ((__u32) 0x00010000)
#define SND_AUDIOMODE_IEC_MPEG_SURROUND ((__u32) 0x00020000)
#define SND_AUDIOPROFILE_G723_1 ((__u32) 0x00000001)
#define SND_AUDIOMODE_G723_1_ANNEX_A ((__u32) 0x00000001)
#define SND_AUDIOMODE_G723_1_ANNEX_B ((__u32) 0x00000002)
#define SND_AUDIOMODE_G723_1_ANNEX_C ((__u32) 0x00000004)
#define SND_AUDIOPROFILE_G729 ((__u32) 0x00000001)
#define SND_AUDIOMODE_G729_ANNEX_A ((__u32) 0x00000001)
#define SND_AUDIOMODE_G729_ANNEX_B ((__u32) 0x00000002)
/* <FIXME: multichannel encoders aren't supported for now. Would need
an additional definition of channel arrangement> */
/* VBR/CBR definitions */
#define SND_RATECONTROLMODE_CONSTANTBITRATE ((__u32) 0x00000001)
#define SND_RATECONTROLMODE_VARIABLEBITRATE ((__u32) 0x00000002)
/* Encoder options */
struct snd_enc_wma {
__u32 super_block_align; /* WMA Type-specific data */
};
/**
* struct snd_enc_vorbis - Vorbis encoder parameters
* @quality: Sets encoding quality to n, between -1 (low) and 10 (high).
* In the default mode of operation, the quality level is 3.
* Normal quality range is 0 - 10.
* @managed: Boolean. Set bitrate management mode. This turns off the
* normal VBR encoding, but allows hard or soft bitrate constraints to be
* enforced by the encoder. This mode can be slower, and may also be
* lower quality. It is primarily useful for streaming.
* @max_bit_rate: Enabled only if managed is TRUE
* @min_bit_rate: Enabled only if managed is TRUE
* @downmix: Boolean. Downmix input from stereo to mono (has no effect on
* non-stereo streams). Useful for lower-bitrate encoding.
*
* These options were extracted from the OpenMAX IL spec and Gstreamer vorbisenc
* properties
*
* For best quality users should specify VBR mode and set quality levels.
*/
struct snd_enc_vorbis {
__s32 quality;
__u32 managed;
__u32 max_bit_rate;
__u32 min_bit_rate;
__u32 downmix;
} __attribute__((packed, aligned(4)));
/**
* struct snd_enc_real - RealAudio encoder parameters
* @quant_bits: number of coupling quantization bits in the stream
* @start_region: coupling start region in the stream
* @num_regions: number of regions value
*
* These options were extracted from the OpenMAX IL spec
*/
struct snd_enc_real {
__u32 quant_bits;
__u32 start_region;
__u32 num_regions;
} __attribute__((packed, aligned(4)));
/**
* struct snd_enc_flac - FLAC encoder parameters
* @num: serial number, valid only for OGG formats
* needs to be set by application
* @gain: Add replay gain tags
*
* These options were extracted from the FLAC online documentation
* at http://flac.sourceforge.net/documentation_tools_flac.html
*
* To make the API simpler, it is assumed that the user will select quality
* profiles. Additional options that affect encoding quality and speed can
* be added at a later stage if needed.
*
* By default the Subset format is used by encoders.
*
* TAGS such as pictures, etc, cannot be handled by an offloaded encoder and are
* not supported in this API.
*/
struct snd_enc_flac {
__u32 num;
__u32 gain;
} __attribute__((packed, aligned(4)));
struct snd_enc_generic {
__u32 bw; /* encoder bandwidth */
__s32 reserved[15]; /* Can be used for SND_AUDIOCODEC_BESPOKE */
} __attribute__((packed, aligned(4)));
struct snd_dec_flac {
__u16 sample_size;
__u16 min_blk_size;
__u16 max_blk_size;
__u16 min_frame_size;
__u16 max_frame_size;
__u16 reserved;
} __attribute__((packed, aligned(4)));
struct snd_dec_wma {
__u32 encoder_option;
__u32 adv_encoder_option;
__u32 adv_encoder_option2;
__u32 reserved;
} __attribute__((packed, aligned(4)));
struct snd_dec_alac {
__u32 frame_length;
__u8 compatible_version;
__u8 pb;
__u8 mb;
__u8 kb;
__u32 max_run;
__u32 max_frame_bytes;
} __attribute__((packed, aligned(4)));
struct snd_dec_ape {
__u16 compatible_version;
__u16 compression_level;
__u32 format_flags;
__u32 blocks_per_frame;
__u32 final_frame_blocks;
__u32 total_frames;
__u32 seek_table_present;
} __attribute__((packed, aligned(4)));
union snd_codec_options {
struct snd_enc_wma wma;
struct snd_enc_vorbis vorbis;
struct snd_enc_real real;
struct snd_enc_flac flac;
struct snd_enc_generic generic;
struct snd_dec_flac flac_d;
struct snd_dec_wma wma_d;
struct snd_dec_alac alac_d;
struct snd_dec_ape ape_d;
} __attribute__((packed, aligned(4)));
/** struct snd_codec_desc - description of codec capabilities
* @max_ch: Maximum number of audio channels
* @sample_rates: Sampling rates in Hz, use values like 48000 for this
* @num_sample_rates: Number of valid values in sample_rates array
* @bit_rate: Indexed array containing supported bit rates
* @num_bitrates: Number of valid values in bit_rate array
* @rate_control: value is specified by SND_RATECONTROLMODE defines.
* @profiles: Supported profiles. See SND_AUDIOPROFILE defines.
* @modes: Supported modes. See SND_AUDIOMODE defines
* @formats: Supported formats. See SND_AUDIOSTREAMFORMAT defines
* @min_buffer: Minimum buffer size handled by codec implementation
* @reserved: reserved for future use
*
* This structure provides a scalar value for profiles, modes and stream
* format fields.
* If an implementation supports multiple combinations, they will be listed as
* codecs with different descriptors, for example there would be 2 descriptors
* for AAC-RAW and AAC-ADTS.
* This entails some redundancy but makes it easier to avoid invalid
* configurations.
*
*/
struct snd_codec_desc {
__u32 max_ch;
__u32 sample_rates[MAX_NUM_SAMPLE_RATES];
__u32 num_sample_rates;
__u32 bit_rate[MAX_NUM_BITRATES];
__u32 num_bitrates;
__u32 rate_control;
__u32 profiles;
__u32 modes;
__u32 formats;
__u32 min_buffer;
__u32 reserved[15];
} __attribute__((packed, aligned(4)));
/** struct snd_codec
* @id: Identifies the supported audio encoder/decoder.
* See SND_AUDIOCODEC macros.
* @ch_in: Number of input audio channels
* @ch_out: Number of output channels. In case of contradiction between
* this field and the channelMode field, the channelMode field
* overrides.
* @sample_rate: Audio sample rate of input data in Hz, use values like 48000
* for this.
* @bit_rate: Bitrate of encoded data. May be ignored by decoders
* @rate_control: Encoding rate control. See SND_RATECONTROLMODE defines.
* Encoders may rely on profiles for quality levels.
* May be ignored by decoders.
* @profile: Mandatory for encoders, can be mandatory for specific
* decoders as well. See SND_AUDIOPROFILE defines.
* @level: Supported level (Only used by WMA at the moment)
* @ch_mode: Channel mode for encoder. See SND_AUDIOCHANMODE defines
* @format: Format of encoded bistream. Mandatory when defined.
* See SND_AUDIOSTREAMFORMAT defines.
* @align: Block alignment in bytes of an audio sample.
* Only required for PCM or IEC formats.
* @options: encoder-specific settings
* @reserved: reserved for future use
*/
struct snd_codec {
__u32 id;
__u32 ch_in;
__u32 ch_out;
__u32 sample_rate;
__u32 bit_rate;
__u32 rate_control;
__u32 profile;
__u32 level;
__u32 ch_mode;
__u32 format;
__u32 align;
union snd_codec_options options;
__u32 reserved[3];
} __attribute__((packed, aligned(4)));
#endif
|
