include/uapi/sound/compress_params.h - third_party/linux - Git at Google


            
            /* 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>

            
             *

            
             *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

            
             *

            
             *  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


            #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_MAX                   SND_AUDIOCODEC_BESPOKE


            /*

            
             * 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;

            
            } __attribute__((packed, aligned(4)));


            /**

            
             * 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;

            
            } __attribute__((packed, aligned(4)));


            /**

            
             * 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;

            
            } __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)));


            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;

            
            } __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
	/* 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>
	*
	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	*
	* 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

	#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_MAX SND_AUDIOCODEC_BESPOKE

	/*
	* 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;
	} __attribute__((packed, aligned(4)));


	/**
	* 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;
	} __attribute__((packed, aligned(4)));

	/**
	* 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;
	} __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)));

	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;
	} __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