include/sound/compress_params.h - kernel/windcharger - Git at Google

 /*
  *  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>
  *
  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; version 2 of the License.
  *
  *  This program is distributed in the hope that it will be useful, but
  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License along
  *  with this program; if not, write to the Free Software Foundation, Inc.,
  *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
  * 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.
  *
  * Copyright (c) 2007-2010 The Khronos Group Inc.
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and/or associated documentation files (the
  * "Materials "), to deal in the Materials without restriction, including
  * without limitation the rights to use, copy, modify, merge, publish,
  * distribute, sublicense, and/or sell copies of the Materials, and to
  * permit persons to whom the Materials are furnished to do so, subject to
  * the following conditions:
  *
  * The above copyright notice and this permission notice shall be included
  * in all copies or substantial portions of the Materials.
  *
  * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
  *
  */
 #ifndef __SND_COMPRESS_PARAMS_H
 #define __SND_COMPRESS_PARAMS_H

 /* AUDIO CODECS SUPPORTED */
 #define MAX_NUM_CODECS 32
 #define MAX_NUM_CODEC_DESCRIPTORS 32
 #define MAX_NUM_BITRATES 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)

 /*
  * 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_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
  * @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;
 };


 /**
  * struct snd_enc_real
  * @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;
 };

 /**
  * struct snd_enc_flac
  * @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;
 };

 struct snd_enc_generic {
 	__u32 bw;	/* encoder bandwidth */
 	__s32 reserved[15];
 };

 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_codec_desc - description of codec capabilities
  * @max_ch: Maximum number of audio channels
  * @sample_rates: Sampling rates in Hz, use SNDRV_PCM_RATE_xxx for this
  * @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;
 	__u32 bit_rate[MAX_NUM_BITRATES];
 	__u32 num_bitrates;
 	__u32 rate_control;
 	__u32 profiles;
 	__u32 modes;
 	__u32 formats;
 	__u32 min_buffer;
 	__u32 reserved[15];
 };

 /** 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
  * @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];
 };

 #endif
	/*
	* 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>
	*
	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; version 2 of the License.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License along
	* with this program; if not, write to the Free Software Foundation, Inc.,
	* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
	*
	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	*
	* 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.
	*
	* Copyright (c) 2007-2010 The Khronos Group Inc.
	*
	* Permission is hereby granted, free of charge, to any person obtaining
	* a copy of this software and/or associated documentation files (the
	* "Materials "), to deal in the Materials without restriction, including
	* without limitation the rights to use, copy, modify, merge, publish,
	* distribute, sublicense, and/or sell copies of the Materials, and to
	* permit persons to whom the Materials are furnished to do so, subject to
	* the following conditions:
	*
	* The above copyright notice and this permission notice shall be included
	* in all copies or substantial portions of the Materials.
	*
	* THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
	* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	* MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
	*
	*/
	#ifndef __SND_COMPRESS_PARAMS_H
	#define __SND_COMPRESS_PARAMS_H

	/* AUDIO CODECS SUPPORTED */
	#define MAX_NUM_CODECS 32
	#define MAX_NUM_CODEC_DESCRIPTORS 32
	#define MAX_NUM_BITRATES 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)

	/*
	* 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_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
	* @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;
	};


	/**
	* struct snd_enc_real
	* @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;
	};

	/**
	* struct snd_enc_flac
	* @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;
	};

	struct snd_enc_generic {
	__u32 bw; /* encoder bandwidth */
	__s32 reserved[15];
	};

	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_codec_desc - description of codec capabilities
	* @max_ch: Maximum number of audio channels
	* @sample_rates: Sampling rates in Hz, use SNDRV_PCM_RATE_xxx for this
	* @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;
	__u32 bit_rate[MAX_NUM_BITRATES];
	__u32 num_bitrates;
	__u32 rate_control;
	__u32 profiles;
	__u32 modes;
	__u32 formats;
	__u32 min_buffer;
	__u32 reserved[15];
	};

	/** 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
	* @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];
	};

	#endif