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1 /*
2  *  compress_params.h - codec types and parameters for compressed data
3  *  streaming interface
4  *
5  *  Copyright (C) 2011 Intel Corporation
6  *  Authors:	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
7  *              Vinod Koul <vinod.koul@linux.intel.com>
8  *
9  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10  *
11  *  This program is free software; you can redistribute it and/or modify
12  *  it under the terms of the GNU General Public License as published by
13  *  the Free Software Foundation; version 2 of the License.
14  *
15  *  This program is distributed in the hope that it will be useful, but
16  *  WITHOUT ANY WARRANTY; without even the implied warranty of
17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18  *  General Public License for more details.
19  *
20  *  You should have received a copy of the GNU General Public License along
21  *  with this program; if not, write to the Free Software Foundation, Inc.,
22  *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
23  *
24  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
25  *
26  * The definitions in this file are derived from the OpenMAX AL version 1.1
27  * and OpenMAX IL v 1.1.2 header files which contain the copyright notice below.
28  *
29  * Copyright (c) 2007-2010 The Khronos Group Inc.
30  *
31  * Permission is hereby granted, free of charge, to any person obtaining
32  * a copy of this software and/or associated documentation files (the
33  * "Materials "), to deal in the Materials without restriction, including
34  * without limitation the rights to use, copy, modify, merge, publish,
35  * distribute, sublicense, and/or sell copies of the Materials, and to
36  * permit persons to whom the Materials are furnished to do so, subject to
37  * the following conditions:
38  *
39  * The above copyright notice and this permission notice shall be included
40  * in all copies or substantial portions of the Materials.
41  *
42  * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
43  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
44  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
45  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
46  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
47  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
48  * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
49  *
50  */
51 #ifndef __SND_COMPRESS_PARAMS_H
52 #define __SND_COMPRESS_PARAMS_H
53 
54 #include <linux/types.h>
55 
56 /* AUDIO CODECS SUPPORTED */
57 #define MAX_NUM_CODECS 32
58 #define MAX_NUM_CODEC_DESCRIPTORS 32
59 #define MAX_NUM_BITRATES 32
60 #define MAX_NUM_SAMPLE_RATES 32
61 
62 /* Codecs are listed linearly to allow for extensibility */
63 #define SND_AUDIOCODEC_PCM                   ((__u32) 0x00000001)
64 #define SND_AUDIOCODEC_MP3                   ((__u32) 0x00000002)
65 #define SND_AUDIOCODEC_AMR                   ((__u32) 0x00000003)
66 #define SND_AUDIOCODEC_AMRWB                 ((__u32) 0x00000004)
67 #define SND_AUDIOCODEC_AMRWBPLUS             ((__u32) 0x00000005)
68 #define SND_AUDIOCODEC_AAC                   ((__u32) 0x00000006)
69 #define SND_AUDIOCODEC_WMA                   ((__u32) 0x00000007)
70 #define SND_AUDIOCODEC_REAL                  ((__u32) 0x00000008)
71 #define SND_AUDIOCODEC_VORBIS                ((__u32) 0x00000009)
72 #define SND_AUDIOCODEC_FLAC                  ((__u32) 0x0000000A)
73 #define SND_AUDIOCODEC_IEC61937              ((__u32) 0x0000000B)
74 #define SND_AUDIOCODEC_G723_1                ((__u32) 0x0000000C)
75 #define SND_AUDIOCODEC_G729                  ((__u32) 0x0000000D)
76 #define SND_AUDIOCODEC_BESPOKE               ((__u32) 0x0000000E)
77 #define SND_AUDIOCODEC_MAX                   SND_AUDIOCODEC_BESPOKE
78 
79 /*
80  * Profile and modes are listed with bit masks. This allows for a
81  * more compact representation of fields that will not evolve
82  * (in contrast to the list of codecs)
83  */
84 
85 #define SND_AUDIOPROFILE_PCM                 ((__u32) 0x00000001)
86 
87 /* MP3 modes are only useful for encoders */
88 #define SND_AUDIOCHANMODE_MP3_MONO           ((__u32) 0x00000001)
89 #define SND_AUDIOCHANMODE_MP3_STEREO         ((__u32) 0x00000002)
90 #define SND_AUDIOCHANMODE_MP3_JOINTSTEREO    ((__u32) 0x00000004)
91 #define SND_AUDIOCHANMODE_MP3_DUAL           ((__u32) 0x00000008)
92 
93 #define SND_AUDIOPROFILE_AMR                 ((__u32) 0x00000001)
94 
95 /* AMR modes are only useful for encoders */
96 #define SND_AUDIOMODE_AMR_DTX_OFF            ((__u32) 0x00000001)
97 #define SND_AUDIOMODE_AMR_VAD1               ((__u32) 0x00000002)
98 #define SND_AUDIOMODE_AMR_VAD2               ((__u32) 0x00000004)
99 
100 #define SND_AUDIOSTREAMFORMAT_UNDEFINED	     ((__u32) 0x00000000)
101 #define SND_AUDIOSTREAMFORMAT_CONFORMANCE    ((__u32) 0x00000001)
102 #define SND_AUDIOSTREAMFORMAT_IF1            ((__u32) 0x00000002)
103 #define SND_AUDIOSTREAMFORMAT_IF2            ((__u32) 0x00000004)
104 #define SND_AUDIOSTREAMFORMAT_FSF            ((__u32) 0x00000008)
105 #define SND_AUDIOSTREAMFORMAT_RTPPAYLOAD     ((__u32) 0x00000010)
106 #define SND_AUDIOSTREAMFORMAT_ITU            ((__u32) 0x00000020)
107 
108 #define SND_AUDIOPROFILE_AMRWB               ((__u32) 0x00000001)
109 
110 /* AMRWB modes are only useful for encoders */
111 #define SND_AUDIOMODE_AMRWB_DTX_OFF          ((__u32) 0x00000001)
112 #define SND_AUDIOMODE_AMRWB_VAD1             ((__u32) 0x00000002)
113 #define SND_AUDIOMODE_AMRWB_VAD2             ((__u32) 0x00000004)
114 
115 #define SND_AUDIOPROFILE_AMRWBPLUS           ((__u32) 0x00000001)
116 
117 #define SND_AUDIOPROFILE_AAC                 ((__u32) 0x00000001)
118 
119 /* AAC modes are required for encoders and decoders */
120 #define SND_AUDIOMODE_AAC_MAIN               ((__u32) 0x00000001)
121 #define SND_AUDIOMODE_AAC_LC                 ((__u32) 0x00000002)
122 #define SND_AUDIOMODE_AAC_SSR                ((__u32) 0x00000004)
123 #define SND_AUDIOMODE_AAC_LTP                ((__u32) 0x00000008)
124 #define SND_AUDIOMODE_AAC_HE                 ((__u32) 0x00000010)
125 #define SND_AUDIOMODE_AAC_SCALABLE           ((__u32) 0x00000020)
126 #define SND_AUDIOMODE_AAC_ERLC               ((__u32) 0x00000040)
127 #define SND_AUDIOMODE_AAC_LD                 ((__u32) 0x00000080)
128 #define SND_AUDIOMODE_AAC_HE_PS              ((__u32) 0x00000100)
129 #define SND_AUDIOMODE_AAC_HE_MPS             ((__u32) 0x00000200)
130 
131 /* AAC formats are required for encoders and decoders */
132 #define SND_AUDIOSTREAMFORMAT_MP2ADTS        ((__u32) 0x00000001)
133 #define SND_AUDIOSTREAMFORMAT_MP4ADTS        ((__u32) 0x00000002)
134 #define SND_AUDIOSTREAMFORMAT_MP4LOAS        ((__u32) 0x00000004)
135 #define SND_AUDIOSTREAMFORMAT_MP4LATM        ((__u32) 0x00000008)
136 #define SND_AUDIOSTREAMFORMAT_ADIF           ((__u32) 0x00000010)
137 #define SND_AUDIOSTREAMFORMAT_MP4FF          ((__u32) 0x00000020)
138 #define SND_AUDIOSTREAMFORMAT_RAW            ((__u32) 0x00000040)
139 
140 #define SND_AUDIOPROFILE_WMA7                ((__u32) 0x00000001)
141 #define SND_AUDIOPROFILE_WMA8                ((__u32) 0x00000002)
142 #define SND_AUDIOPROFILE_WMA9                ((__u32) 0x00000004)
143 #define SND_AUDIOPROFILE_WMA10               ((__u32) 0x00000008)
144 
145 #define SND_AUDIOMODE_WMA_LEVEL1             ((__u32) 0x00000001)
146 #define SND_AUDIOMODE_WMA_LEVEL2             ((__u32) 0x00000002)
147 #define SND_AUDIOMODE_WMA_LEVEL3             ((__u32) 0x00000004)
148 #define SND_AUDIOMODE_WMA_LEVEL4             ((__u32) 0x00000008)
149 #define SND_AUDIOMODE_WMAPRO_LEVELM0         ((__u32) 0x00000010)
150 #define SND_AUDIOMODE_WMAPRO_LEVELM1         ((__u32) 0x00000020)
151 #define SND_AUDIOMODE_WMAPRO_LEVELM2         ((__u32) 0x00000040)
152 #define SND_AUDIOMODE_WMAPRO_LEVELM3         ((__u32) 0x00000080)
153 
154 #define SND_AUDIOSTREAMFORMAT_WMA_ASF        ((__u32) 0x00000001)
155 /*
156  * Some implementations strip the ASF header and only send ASF packets
157  * to the DSP
158  */
159 #define SND_AUDIOSTREAMFORMAT_WMA_NOASF_HDR  ((__u32) 0x00000002)
160 
161 #define SND_AUDIOPROFILE_REALAUDIO           ((__u32) 0x00000001)
162 
163 #define SND_AUDIOMODE_REALAUDIO_G2           ((__u32) 0x00000001)
164 #define SND_AUDIOMODE_REALAUDIO_8            ((__u32) 0x00000002)
165 #define SND_AUDIOMODE_REALAUDIO_10           ((__u32) 0x00000004)
166 #define SND_AUDIOMODE_REALAUDIO_SURROUND     ((__u32) 0x00000008)
167 
168 #define SND_AUDIOPROFILE_VORBIS              ((__u32) 0x00000001)
169 
170 #define SND_AUDIOMODE_VORBIS                 ((__u32) 0x00000001)
171 
172 #define SND_AUDIOPROFILE_FLAC                ((__u32) 0x00000001)
173 
174 /*
175  * Define quality levels for FLAC encoders, from LEVEL0 (fast)
176  * to LEVEL8 (best)
177  */
178 #define SND_AUDIOMODE_FLAC_LEVEL0            ((__u32) 0x00000001)
179 #define SND_AUDIOMODE_FLAC_LEVEL1            ((__u32) 0x00000002)
180 #define SND_AUDIOMODE_FLAC_LEVEL2            ((__u32) 0x00000004)
181 #define SND_AUDIOMODE_FLAC_LEVEL3            ((__u32) 0x00000008)
182 #define SND_AUDIOMODE_FLAC_LEVEL4            ((__u32) 0x00000010)
183 #define SND_AUDIOMODE_FLAC_LEVEL5            ((__u32) 0x00000020)
184 #define SND_AUDIOMODE_FLAC_LEVEL6            ((__u32) 0x00000040)
185 #define SND_AUDIOMODE_FLAC_LEVEL7            ((__u32) 0x00000080)
186 #define SND_AUDIOMODE_FLAC_LEVEL8            ((__u32) 0x00000100)
187 
188 #define SND_AUDIOSTREAMFORMAT_FLAC           ((__u32) 0x00000001)
189 #define SND_AUDIOSTREAMFORMAT_FLAC_OGG       ((__u32) 0x00000002)
190 
191 /* IEC61937 payloads without CUVP and preambles */
192 #define SND_AUDIOPROFILE_IEC61937            ((__u32) 0x00000001)
193 /* IEC61937 with S/PDIF preambles+CUVP bits in 32-bit containers */
194 #define SND_AUDIOPROFILE_IEC61937_SPDIF      ((__u32) 0x00000002)
195 
196 /*
197  * IEC modes are mandatory for decoders. Format autodetection
198  * will only happen on the DSP side with mode 0. The PCM mode should
199  * not be used, the PCM codec should be used instead.
200  */
201 #define SND_AUDIOMODE_IEC_REF_STREAM_HEADER  ((__u32) 0x00000000)
202 #define SND_AUDIOMODE_IEC_LPCM		     ((__u32) 0x00000001)
203 #define SND_AUDIOMODE_IEC_AC3		     ((__u32) 0x00000002)
204 #define SND_AUDIOMODE_IEC_MPEG1		     ((__u32) 0x00000004)
205 #define SND_AUDIOMODE_IEC_MP3		     ((__u32) 0x00000008)
206 #define SND_AUDIOMODE_IEC_MPEG2		     ((__u32) 0x00000010)
207 #define SND_AUDIOMODE_IEC_AACLC		     ((__u32) 0x00000020)
208 #define SND_AUDIOMODE_IEC_DTS		     ((__u32) 0x00000040)
209 #define SND_AUDIOMODE_IEC_ATRAC		     ((__u32) 0x00000080)
210 #define SND_AUDIOMODE_IEC_SACD		     ((__u32) 0x00000100)
211 #define SND_AUDIOMODE_IEC_EAC3		     ((__u32) 0x00000200)
212 #define SND_AUDIOMODE_IEC_DTS_HD	     ((__u32) 0x00000400)
213 #define SND_AUDIOMODE_IEC_MLP		     ((__u32) 0x00000800)
214 #define SND_AUDIOMODE_IEC_DST		     ((__u32) 0x00001000)
215 #define SND_AUDIOMODE_IEC_WMAPRO	     ((__u32) 0x00002000)
216 #define SND_AUDIOMODE_IEC_REF_CXT            ((__u32) 0x00004000)
217 #define SND_AUDIOMODE_IEC_HE_AAC	     ((__u32) 0x00008000)
218 #define SND_AUDIOMODE_IEC_HE_AAC2	     ((__u32) 0x00010000)
219 #define SND_AUDIOMODE_IEC_MPEG_SURROUND	     ((__u32) 0x00020000)
220 
221 #define SND_AUDIOPROFILE_G723_1              ((__u32) 0x00000001)
222 
223 #define SND_AUDIOMODE_G723_1_ANNEX_A         ((__u32) 0x00000001)
224 #define SND_AUDIOMODE_G723_1_ANNEX_B         ((__u32) 0x00000002)
225 #define SND_AUDIOMODE_G723_1_ANNEX_C         ((__u32) 0x00000004)
226 
227 #define SND_AUDIOPROFILE_G729                ((__u32) 0x00000001)
228 
229 #define SND_AUDIOMODE_G729_ANNEX_A           ((__u32) 0x00000001)
230 #define SND_AUDIOMODE_G729_ANNEX_B           ((__u32) 0x00000002)
231 
232 /* <FIXME: multichannel encoders aren't supported for now. Would need
233    an additional definition of channel arrangement> */
234 
235 /* VBR/CBR definitions */
236 #define SND_RATECONTROLMODE_CONSTANTBITRATE  ((__u32) 0x00000001)
237 #define SND_RATECONTROLMODE_VARIABLEBITRATE  ((__u32) 0x00000002)
238 
239 /* Encoder options */
240 
241 struct snd_enc_wma {
242 	__u32 super_block_align; /* WMA Type-specific data */
243 };
244 
245 
246 /**
247  * struct snd_enc_vorbis
248  * @quality: Sets encoding quality to n, between -1 (low) and 10 (high).
249  * In the default mode of operation, the quality level is 3.
250  * Normal quality range is 0 - 10.
251  * @managed: Boolean. Set  bitrate  management  mode. This turns off the
252  * normal VBR encoding, but allows hard or soft bitrate constraints to be
253  * enforced by the encoder. This mode can be slower, and may also be
254  * lower quality. It is primarily useful for streaming.
255  * @max_bit_rate: Enabled only if managed is TRUE
256  * @min_bit_rate: Enabled only if managed is TRUE
257  * @downmix: Boolean. Downmix input from stereo to mono (has no effect on
258  * non-stereo streams). Useful for lower-bitrate encoding.
259  *
260  * These options were extracted from the OpenMAX IL spec and Gstreamer vorbisenc
261  * properties
262  *
263  * For best quality users should specify VBR mode and set quality levels.
264  */
265 
266 struct snd_enc_vorbis {
267 	__s32 quality;
268 	__u32 managed;
269 	__u32 max_bit_rate;
270 	__u32 min_bit_rate;
271 	__u32 downmix;
272 } __attribute__((packed, aligned(4)));
273 
274 
275 /**
276  * struct snd_enc_real
277  * @quant_bits: number of coupling quantization bits in the stream
278  * @start_region: coupling start region in the stream
279  * @num_regions: number of regions value
280  *
281  * These options were extracted from the OpenMAX IL spec
282  */
283 
284 struct snd_enc_real {
285 	__u32 quant_bits;
286 	__u32 start_region;
287 	__u32 num_regions;
288 } __attribute__((packed, aligned(4)));
289 
290 /**
291  * struct snd_enc_flac
292  * @num: serial number, valid only for OGG formats
293  *	needs to be set by application
294  * @gain: Add replay gain tags
295  *
296  * These options were extracted from the FLAC online documentation
297  * at http://flac.sourceforge.net/documentation_tools_flac.html
298  *
299  * To make the API simpler, it is assumed that the user will select quality
300  * profiles. Additional options that affect encoding quality and speed can
301  * be added at a later stage if needed.
302  *
303  * By default the Subset format is used by encoders.
304  *
305  * TAGS such as pictures, etc, cannot be handled by an offloaded encoder and are
306  * not supported in this API.
307  */
308 
309 struct snd_enc_flac {
310 	__u32 num;
311 	__u32 gain;
312 } __attribute__((packed, aligned(4)));
313 
314 struct snd_enc_generic {
315 	__u32 bw;	/* encoder bandwidth */
316 	__s32 reserved[15];	/* Can be used for SND_AUDIOCODEC_BESPOKE */
317 } __attribute__((packed, aligned(4)));
318 
319 union snd_codec_options {
320 	struct snd_enc_wma wma;
321 	struct snd_enc_vorbis vorbis;
322 	struct snd_enc_real real;
323 	struct snd_enc_flac flac;
324 	struct snd_enc_generic generic;
325 } __attribute__((packed, aligned(4)));
326 
327 /** struct snd_codec_desc - description of codec capabilities
328  * @max_ch: Maximum number of audio channels
329  * @sample_rates: Sampling rates in Hz, use values like 48000 for this
330  * @num_sample_rates: Number of valid values in sample_rates array
331  * @bit_rate: Indexed array containing supported bit rates
332  * @num_bitrates: Number of valid values in bit_rate array
333  * @rate_control: value is specified by SND_RATECONTROLMODE defines.
334  * @profiles: Supported profiles. See SND_AUDIOPROFILE defines.
335  * @modes: Supported modes. See SND_AUDIOMODE defines
336  * @formats: Supported formats. See SND_AUDIOSTREAMFORMAT defines
337  * @min_buffer: Minimum buffer size handled by codec implementation
338  * @reserved: reserved for future use
339  *
340  * This structure provides a scalar value for profiles, modes and stream
341  * format fields.
342  * If an implementation supports multiple combinations, they will be listed as
343  * codecs with different descriptors, for example there would be 2 descriptors
344  * for AAC-RAW and AAC-ADTS.
345  * This entails some redundancy but makes it easier to avoid invalid
346  * configurations.
347  *
348  */
349 
350 struct snd_codec_desc {
351 	__u32 max_ch;
352 	__u32 sample_rates[MAX_NUM_SAMPLE_RATES];
353 	__u32 num_sample_rates;
354 	__u32 bit_rate[MAX_NUM_BITRATES];
355 	__u32 num_bitrates;
356 	__u32 rate_control;
357 	__u32 profiles;
358 	__u32 modes;
359 	__u32 formats;
360 	__u32 min_buffer;
361 	__u32 reserved[15];
362 } __attribute__((packed, aligned(4)));
363 
364 /** struct snd_codec
365  * @id: Identifies the supported audio encoder/decoder.
366  *		See SND_AUDIOCODEC macros.
367  * @ch_in: Number of input audio channels
368  * @ch_out: Number of output channels. In case of contradiction between
369  *		this field and the channelMode field, the channelMode field
370  *		overrides.
371  * @sample_rate: Audio sample rate of input data in Hz, use values like 48000
372  *		for this.
373  * @bit_rate: Bitrate of encoded data. May be ignored by decoders
374  * @rate_control: Encoding rate control. See SND_RATECONTROLMODE defines.
375  *               Encoders may rely on profiles for quality levels.
376  *		 May be ignored by decoders.
377  * @profile: Mandatory for encoders, can be mandatory for specific
378  *		decoders as well. See SND_AUDIOPROFILE defines.
379  * @level: Supported level (Only used by WMA at the moment)
380  * @ch_mode: Channel mode for encoder. See SND_AUDIOCHANMODE defines
381  * @format: Format of encoded bistream. Mandatory when defined.
382  *		See SND_AUDIOSTREAMFORMAT defines.
383  * @align: Block alignment in bytes of an audio sample.
384  *		Only required for PCM or IEC formats.
385  * @options: encoder-specific settings
386  * @reserved: reserved for future use
387  */
388 
389 struct snd_codec {
390 	__u32 id;
391 	__u32 ch_in;
392 	__u32 ch_out;
393 	__u32 sample_rate;
394 	__u32 bit_rate;
395 	__u32 rate_control;
396 	__u32 profile;
397 	__u32 level;
398 	__u32 ch_mode;
399 	__u32 format;
400 	__u32 align;
401 	union snd_codec_options options;
402 	__u32 reserved[3];
403 } __attribute__((packed, aligned(4)));
404 
405 #endif
406