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