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✏️ Editing: compress_params.h

/* 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>
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 * 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
 * and are licensed under the MIT license.
 *
 * Copyright (c) 2007-2010 The Khronos Group Inc.
 */
#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_ALAC                  ((__u32) 0x0000000F)
#define SND_AUDIOCODEC_APE                   ((__u32) 0x00000010)
#define SND_AUDIOCODEC_MAX                   SND_AUDIOCODEC_APE

/*
 * 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_AUDIOPROFILE_WMA9_PRO            ((__u32) 0x00000010)
#define SND_AUDIOPROFILE_WMA9_LOSSLESS       ((__u32) 0x00000020)
#define SND_AUDIOPROFILE_WMA10_LOSSLESS      ((__u32) 0x00000040)

#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 - Vorbis encoder parameters
 * @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 - RealAudio encoder parameters
 * @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 - FLAC encoder parameters
 * @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)));

struct snd_dec_flac {
	__u16 sample_size;
	__u16 min_blk_size;
	__u16 max_blk_size;
	__u16 min_frame_size;
	__u16 max_frame_size;
	__u16 reserved;
} __attribute__((packed, aligned(4)));

struct snd_dec_wma {
	__u32 encoder_option;
	__u32 adv_encoder_option;
	__u32 adv_encoder_option2;
	__u32 reserved;
} __attribute__((packed, aligned(4)));

struct snd_dec_alac {
	__u32 frame_length;
	__u8 compatible_version;
	__u8 pb;
	__u8 mb;
	__u8 kb;
	__u32 max_run;
	__u32 max_frame_bytes;
} __attribute__((packed, aligned(4)));

struct snd_dec_ape {
	__u16 compatible_version;
	__u16 compression_level;
	__u32 format_flags;
	__u32 blocks_per_frame;
	__u32 final_frame_blocks;
	__u32 total_frames;
	__u32 seek_table_present;
} __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;
	struct snd_dec_flac flac_d;
	struct snd_dec_wma wma_d;
	struct snd_dec_alac alac_d;
	struct snd_dec_ape ape_d;
} __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

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