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