CoCalc -- compress

GitHub Repository: torvalds/linux
Path: blob/master/include/uapi/sound/compress_params.h
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/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) AND MIT) */
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/*
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 *  compress_params.h - codec types and parameters for compressed data
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 *  streaming interface
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 *
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 *  Copyright (C) 2011 Intel Corporation
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 *  Authors:	Pierre-Louis Bossart <[email protected]>
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 *              Vinod Koul <[email protected]>
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 *
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 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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 *
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 * The definitions in this file are derived from the OpenMAX AL version 1.1
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 * and OpenMAX IL v 1.1.2 header files which contain the copyright notice below
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 * and are licensed under the MIT license.
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 *
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 * Copyright (c) 2007-2010 The Khronos Group Inc.
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 */
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#ifndef __SND_COMPRESS_PARAMS_H
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#define __SND_COMPRESS_PARAMS_H
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#include <linux/types.h>
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/* AUDIO CODECS SUPPORTED */
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#define MAX_NUM_CODECS 32
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#define MAX_NUM_CODEC_DESCRIPTORS 32
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#define MAX_NUM_BITRATES 32
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#define MAX_NUM_SAMPLE_RATES 32
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/* Codecs are listed linearly to allow for extensibility */
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#define SND_AUDIOCODEC_PCM                   ((__u32) 0x00000001)
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#define SND_AUDIOCODEC_MP3                   ((__u32) 0x00000002)
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#define SND_AUDIOCODEC_AMR                   ((__u32) 0x00000003)
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#define SND_AUDIOCODEC_AMRWB                 ((__u32) 0x00000004)
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#define SND_AUDIOCODEC_AMRWBPLUS             ((__u32) 0x00000005)
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#define SND_AUDIOCODEC_AAC                   ((__u32) 0x00000006)
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#define SND_AUDIOCODEC_WMA                   ((__u32) 0x00000007)
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#define SND_AUDIOCODEC_REAL                  ((__u32) 0x00000008)
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#define SND_AUDIOCODEC_VORBIS                ((__u32) 0x00000009)
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#define SND_AUDIOCODEC_FLAC                  ((__u32) 0x0000000A)
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#define SND_AUDIOCODEC_IEC61937              ((__u32) 0x0000000B)
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#define SND_AUDIOCODEC_G723_1                ((__u32) 0x0000000C)
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#define SND_AUDIOCODEC_G729                  ((__u32) 0x0000000D)
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#define SND_AUDIOCODEC_BESPOKE               ((__u32) 0x0000000E)
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#define SND_AUDIOCODEC_ALAC                  ((__u32) 0x0000000F)
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#define SND_AUDIOCODEC_APE                   ((__u32) 0x00000010)
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#define SND_AUDIOCODEC_OPUS_RAW              ((__u32) 0x00000011)
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#define SND_AUDIOCODEC_MAX                   SND_AUDIOCODEC_OPUS_RAW
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/*
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 * Profile and modes are listed with bit masks. This allows for a
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 * more compact representation of fields that will not evolve
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 * (in contrast to the list of codecs)
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 */
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#define SND_AUDIOPROFILE_PCM                 ((__u32) 0x00000001)
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/* MP3 modes are only useful for encoders */
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#define SND_AUDIOCHANMODE_MP3_MONO           ((__u32) 0x00000001)
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#define SND_AUDIOCHANMODE_MP3_STEREO         ((__u32) 0x00000002)
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#define SND_AUDIOCHANMODE_MP3_JOINTSTEREO    ((__u32) 0x00000004)
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#define SND_AUDIOCHANMODE_MP3_DUAL           ((__u32) 0x00000008)
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#define SND_AUDIOPROFILE_AMR                 ((__u32) 0x00000001)
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/* AMR modes are only useful for encoders */
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#define SND_AUDIOMODE_AMR_DTX_OFF            ((__u32) 0x00000001)
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#define SND_AUDIOMODE_AMR_VAD1               ((__u32) 0x00000002)
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#define SND_AUDIOMODE_AMR_VAD2               ((__u32) 0x00000004)
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#define SND_AUDIOSTREAMFORMAT_UNDEFINED	     ((__u32) 0x00000000)
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#define SND_AUDIOSTREAMFORMAT_CONFORMANCE    ((__u32) 0x00000001)
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#define SND_AUDIOSTREAMFORMAT_IF1            ((__u32) 0x00000002)
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#define SND_AUDIOSTREAMFORMAT_IF2            ((__u32) 0x00000004)
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#define SND_AUDIOSTREAMFORMAT_FSF            ((__u32) 0x00000008)
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#define SND_AUDIOSTREAMFORMAT_RTPPAYLOAD     ((__u32) 0x00000010)
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#define SND_AUDIOSTREAMFORMAT_ITU            ((__u32) 0x00000020)
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#define SND_AUDIOPROFILE_AMRWB               ((__u32) 0x00000001)
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/* AMRWB modes are only useful for encoders */
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#define SND_AUDIOMODE_AMRWB_DTX_OFF          ((__u32) 0x00000001)
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#define SND_AUDIOMODE_AMRWB_VAD1             ((__u32) 0x00000002)
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#define SND_AUDIOMODE_AMRWB_VAD2             ((__u32) 0x00000004)
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#define SND_AUDIOPROFILE_AMRWBPLUS           ((__u32) 0x00000001)
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#define SND_AUDIOPROFILE_AAC                 ((__u32) 0x00000001)
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/* AAC modes are required for encoders and decoders */
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#define SND_AUDIOMODE_AAC_MAIN               ((__u32) 0x00000001)
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#define SND_AUDIOMODE_AAC_LC                 ((__u32) 0x00000002)
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#define SND_AUDIOMODE_AAC_SSR                ((__u32) 0x00000004)
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#define SND_AUDIOMODE_AAC_LTP                ((__u32) 0x00000008)
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#define SND_AUDIOMODE_AAC_HE                 ((__u32) 0x00000010)
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#define SND_AUDIOMODE_AAC_SCALABLE           ((__u32) 0x00000020)
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#define SND_AUDIOMODE_AAC_ERLC               ((__u32) 0x00000040)
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#define SND_AUDIOMODE_AAC_LD                 ((__u32) 0x00000080)
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#define SND_AUDIOMODE_AAC_HE_PS              ((__u32) 0x00000100)
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#define SND_AUDIOMODE_AAC_HE_MPS             ((__u32) 0x00000200)
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/* AAC formats are required for encoders and decoders */
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#define SND_AUDIOSTREAMFORMAT_MP2ADTS        ((__u32) 0x00000001)
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#define SND_AUDIOSTREAMFORMAT_MP4ADTS        ((__u32) 0x00000002)
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#define SND_AUDIOSTREAMFORMAT_MP4LOAS        ((__u32) 0x00000004)
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#define SND_AUDIOSTREAMFORMAT_MP4LATM        ((__u32) 0x00000008)
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#define SND_AUDIOSTREAMFORMAT_ADIF           ((__u32) 0x00000010)
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#define SND_AUDIOSTREAMFORMAT_MP4FF          ((__u32) 0x00000020)
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#define SND_AUDIOSTREAMFORMAT_RAW            ((__u32) 0x00000040)
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#define SND_AUDIOPROFILE_WMA7                ((__u32) 0x00000001)
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#define SND_AUDIOPROFILE_WMA8                ((__u32) 0x00000002)
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#define SND_AUDIOPROFILE_WMA9                ((__u32) 0x00000004)
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#define SND_AUDIOPROFILE_WMA10               ((__u32) 0x00000008)
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#define SND_AUDIOPROFILE_WMA9_PRO            ((__u32) 0x00000010)
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#define SND_AUDIOPROFILE_WMA9_LOSSLESS       ((__u32) 0x00000020)
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#define SND_AUDIOPROFILE_WMA10_LOSSLESS      ((__u32) 0x00000040)
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#define SND_AUDIOMODE_WMA_LEVEL1             ((__u32) 0x00000001)
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#define SND_AUDIOMODE_WMA_LEVEL2             ((__u32) 0x00000002)
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#define SND_AUDIOMODE_WMA_LEVEL3             ((__u32) 0x00000004)
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#define SND_AUDIOMODE_WMA_LEVEL4             ((__u32) 0x00000008)
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#define SND_AUDIOMODE_WMAPRO_LEVELM0         ((__u32) 0x00000010)
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#define SND_AUDIOMODE_WMAPRO_LEVELM1         ((__u32) 0x00000020)
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#define SND_AUDIOMODE_WMAPRO_LEVELM2         ((__u32) 0x00000040)
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#define SND_AUDIOMODE_WMAPRO_LEVELM3         ((__u32) 0x00000080)
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#define SND_AUDIOSTREAMFORMAT_WMA_ASF        ((__u32) 0x00000001)
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/*
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 * Some implementations strip the ASF header and only send ASF packets
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 * to the DSP
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 */
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#define SND_AUDIOSTREAMFORMAT_WMA_NOASF_HDR  ((__u32) 0x00000002)
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#define SND_AUDIOPROFILE_REALAUDIO           ((__u32) 0x00000001)
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#define SND_AUDIOMODE_REALAUDIO_G2           ((__u32) 0x00000001)
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#define SND_AUDIOMODE_REALAUDIO_8            ((__u32) 0x00000002)
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#define SND_AUDIOMODE_REALAUDIO_10           ((__u32) 0x00000004)
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#define SND_AUDIOMODE_REALAUDIO_SURROUND     ((__u32) 0x00000008)
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#define SND_AUDIOPROFILE_VORBIS              ((__u32) 0x00000001)
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#define SND_AUDIOMODE_VORBIS                 ((__u32) 0x00000001)
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#define SND_AUDIOPROFILE_FLAC                ((__u32) 0x00000001)
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/*
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 * Define quality levels for FLAC encoders, from LEVEL0 (fast)
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 * to LEVEL8 (best)
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 */
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#define SND_AUDIOMODE_FLAC_LEVEL0            ((__u32) 0x00000001)
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#define SND_AUDIOMODE_FLAC_LEVEL1            ((__u32) 0x00000002)
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#define SND_AUDIOMODE_FLAC_LEVEL2            ((__u32) 0x00000004)
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#define SND_AUDIOMODE_FLAC_LEVEL3            ((__u32) 0x00000008)
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#define SND_AUDIOMODE_FLAC_LEVEL4            ((__u32) 0x00000010)
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#define SND_AUDIOMODE_FLAC_LEVEL5            ((__u32) 0x00000020)
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#define SND_AUDIOMODE_FLAC_LEVEL6            ((__u32) 0x00000040)
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#define SND_AUDIOMODE_FLAC_LEVEL7            ((__u32) 0x00000080)
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#define SND_AUDIOMODE_FLAC_LEVEL8            ((__u32) 0x00000100)
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#define SND_AUDIOSTREAMFORMAT_FLAC           ((__u32) 0x00000001)
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#define SND_AUDIOSTREAMFORMAT_FLAC_OGG       ((__u32) 0x00000002)
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/* IEC61937 payloads without CUVP and preambles */
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#define SND_AUDIOPROFILE_IEC61937            ((__u32) 0x00000001)
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/* IEC61937 with S/PDIF preambles+CUVP bits in 32-bit containers */
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#define SND_AUDIOPROFILE_IEC61937_SPDIF      ((__u32) 0x00000002)
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/*
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 * IEC modes are mandatory for decoders. Format autodetection
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 * will only happen on the DSP side with mode 0. The PCM mode should
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 * not be used, the PCM codec should be used instead.
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 */
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#define SND_AUDIOMODE_IEC_REF_STREAM_HEADER  ((__u32) 0x00000000)
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#define SND_AUDIOMODE_IEC_LPCM		     ((__u32) 0x00000001)
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#define SND_AUDIOMODE_IEC_AC3		     ((__u32) 0x00000002)
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#define SND_AUDIOMODE_IEC_MPEG1		     ((__u32) 0x00000004)
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#define SND_AUDIOMODE_IEC_MP3		     ((__u32) 0x00000008)
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#define SND_AUDIOMODE_IEC_MPEG2		     ((__u32) 0x00000010)
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#define SND_AUDIOMODE_IEC_AACLC		     ((__u32) 0x00000020)
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#define SND_AUDIOMODE_IEC_DTS		     ((__u32) 0x00000040)
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#define SND_AUDIOMODE_IEC_ATRAC		     ((__u32) 0x00000080)
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#define SND_AUDIOMODE_IEC_SACD		     ((__u32) 0x00000100)
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#define SND_AUDIOMODE_IEC_EAC3		     ((__u32) 0x00000200)
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#define SND_AUDIOMODE_IEC_DTS_HD	     ((__u32) 0x00000400)
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#define SND_AUDIOMODE_IEC_MLP		     ((__u32) 0x00000800)
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#define SND_AUDIOMODE_IEC_DST		     ((__u32) 0x00001000)
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#define SND_AUDIOMODE_IEC_WMAPRO	     ((__u32) 0x00002000)
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#define SND_AUDIOMODE_IEC_REF_CXT            ((__u32) 0x00004000)
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#define SND_AUDIOMODE_IEC_HE_AAC	     ((__u32) 0x00008000)
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#define SND_AUDIOMODE_IEC_HE_AAC2	     ((__u32) 0x00010000)
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#define SND_AUDIOMODE_IEC_MPEG_SURROUND	     ((__u32) 0x00020000)
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#define SND_AUDIOPROFILE_G723_1              ((__u32) 0x00000001)
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#define SND_AUDIOMODE_G723_1_ANNEX_A         ((__u32) 0x00000001)
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#define SND_AUDIOMODE_G723_1_ANNEX_B         ((__u32) 0x00000002)
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#define SND_AUDIOMODE_G723_1_ANNEX_C         ((__u32) 0x00000004)
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#define SND_AUDIOPROFILE_G729                ((__u32) 0x00000001)
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#define SND_AUDIOMODE_G729_ANNEX_A           ((__u32) 0x00000001)
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#define SND_AUDIOMODE_G729_ANNEX_B           ((__u32) 0x00000002)
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/* <FIXME: multichannel encoders aren't supported for now. Would need
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   an additional definition of channel arrangement> */
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/* VBR/CBR definitions */
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#define SND_RATECONTROLMODE_CONSTANTBITRATE  ((__u32) 0x00000001)
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#define SND_RATECONTROLMODE_VARIABLEBITRATE  ((__u32) 0x00000002)
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/* Encoder options */
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struct snd_enc_wma {
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	__u32 super_block_align; /* WMA Type-specific data */
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};
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/**
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 * struct snd_enc_vorbis - Vorbis encoder parameters
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 * @quality: Sets encoding quality to n, between -1 (low) and 10 (high).
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 * In the default mode of operation, the quality level is 3.
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 * Normal quality range is 0 - 10.
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 * @managed: Boolean. Set  bitrate  management  mode. This turns off the
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 * normal VBR encoding, but allows hard or soft bitrate constraints to be
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 * enforced by the encoder. This mode can be slower, and may also be
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 * lower quality. It is primarily useful for streaming.
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 * @max_bit_rate: Enabled only if managed is TRUE
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 * @min_bit_rate: Enabled only if managed is TRUE
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 * @downmix: Boolean. Downmix input from stereo to mono (has no effect on
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 * non-stereo streams). Useful for lower-bitrate encoding.
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 *
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 * These options were extracted from the OpenMAX IL spec and Gstreamer vorbisenc
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 * properties
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 *
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 * For best quality users should specify VBR mode and set quality levels.
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 */
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struct snd_enc_vorbis {
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	__s32 quality;
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	__u32 managed;
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	__u32 max_bit_rate;
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	__u32 min_bit_rate;
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	__u32 downmix;
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} __attribute__((packed, aligned(4)));
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/**
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 * struct snd_enc_real - RealAudio encoder parameters
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 * @quant_bits: number of coupling quantization bits in the stream
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 * @start_region: coupling start region in the stream
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 * @num_regions: number of regions value
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 *
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 * These options were extracted from the OpenMAX IL spec
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 */
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struct snd_enc_real {
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	__u32 quant_bits;
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	__u32 start_region;
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	__u32 num_regions;
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} __attribute__((packed, aligned(4)));
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/**
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 * struct snd_enc_flac - FLAC encoder parameters
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 * @num: serial number, valid only for OGG formats
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 *	needs to be set by application
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 * @gain: Add replay gain tags
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 *
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 * These options were extracted from the FLAC online documentation
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 * at http://flac.sourceforge.net/documentation_tools_flac.html
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 *
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 * To make the API simpler, it is assumed that the user will select quality
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 * profiles. Additional options that affect encoding quality and speed can
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 * be added at a later stage if needed.
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 *
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 * By default the Subset format is used by encoders.
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 *
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 * TAGS such as pictures, etc, cannot be handled by an offloaded encoder and are
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 * not supported in this API.
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 */
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struct snd_enc_flac {
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	__u32 num;
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	__u32 gain;
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} __attribute__((packed, aligned(4)));
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struct snd_enc_generic {
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	__u32 bw;	/* encoder bandwidth */
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	__s32 reserved[15];	/* Can be used for SND_AUDIOCODEC_BESPOKE */
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} __attribute__((packed, aligned(4)));
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struct snd_dec_flac {
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	__u16 sample_size;
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	__u16 min_blk_size;
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	__u16 max_blk_size;
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	__u16 min_frame_size;
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	__u16 max_frame_size;
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	__u16 reserved;
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} __attribute__((packed, aligned(4)));
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struct snd_dec_wma {
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	__u32 encoder_option;
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	__u32 adv_encoder_option;
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	__u32 adv_encoder_option2;
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	__u32 reserved;
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} __attribute__((packed, aligned(4)));
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struct snd_dec_alac {
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	__u32 frame_length;
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	__u8 compatible_version;
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	__u8 pb;
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	__u8 mb;
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	__u8 kb;
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	__u32 max_run;
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	__u32 max_frame_bytes;
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} __attribute__((packed, aligned(4)));
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struct snd_dec_ape {
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	__u16 compatible_version;
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	__u16 compression_level;
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	__u32 format_flags;
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	__u32 blocks_per_frame;
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	__u32 final_frame_blocks;
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	__u32 total_frames;
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	__u32 seek_table_present;
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} __attribute__((packed, aligned(4)));
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/**
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 * struct snd_dec_opus - Opus decoder parameters (raw opus packets)
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 * @version: Usually should be '1' but can be split into major (4 upper bits)
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 * and minor (4 lower bits) sub-fields.
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 * @num_channels: Number of output channels.
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 * @pre_skip: Number of samples to discard at 48 kHz.
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 * @sample_rate: Sample rate of original input.
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 * @output_gain: Gain to apply when decoding (in Q7.8 format).
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 * @mapping_family: Order and meaning of output channels. Only values 0 and 1
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 * are expected; values 2..255 are not recommended for playback.
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 *
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 * @chan_map: Optional channel mapping table. Describes mapping of opus streams
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 *            to decoded channels. Fields:
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 * @chan_map.stream_count: Number of streams encoded in each Ogg packet.
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 * @chan_map.coupled_count: Number of streams whose decoders are used
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 *                          for two channels.
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 * @chan_map.channel_map: Which decoded channel to be used for each one.
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 *                        Supports only mapping families 0 and 1,
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 *                        max number of channels is 8.
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 *
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 * These options were extracted from RFC7845 Section 5.
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 */
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struct snd_dec_opus {
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	__u8 version;
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	__u8 num_channels;
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	__u16 pre_skip;
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	__u32 sample_rate;
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	__u16 output_gain;
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	__u8 mapping_family;
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	struct snd_dec_opus_ch_map {
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		__u8 stream_count;
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		__u8 coupled_count;
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		__u8 channel_map[8];
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	} chan_map;
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} __attribute__((packed, aligned(4)));
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union snd_codec_options {
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	struct snd_enc_wma wma;
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	struct snd_enc_vorbis vorbis;
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	struct snd_enc_real real;
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	struct snd_enc_flac flac;
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	struct snd_enc_generic generic;
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	struct snd_dec_flac flac_d;
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	struct snd_dec_wma wma_d;
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	struct snd_dec_alac alac_d;
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	struct snd_dec_ape ape_d;
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	struct snd_dec_opus opus_d;
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	struct {
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		__u32 out_sample_rate;
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	} src_d;
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} __attribute__((packed, aligned(4)));
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struct snd_codec_desc_src {
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	__u32 out_sample_rate_min;
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	__u32 out_sample_rate_max;
384
} __attribute__((packed, aligned(4)));
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/** struct snd_codec_desc - description of codec capabilities
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 * @max_ch: Maximum number of audio channels
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 * @sample_rates: Sampling rates in Hz, use values like 48000 for this
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 * @num_sample_rates: Number of valid values in sample_rates array
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 * @bit_rate: Indexed array containing supported bit rates
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 * @num_bitrates: Number of valid values in bit_rate array
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 * @rate_control: value is specified by SND_RATECONTROLMODE defines.
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 * @profiles: Supported profiles. See SND_AUDIOPROFILE defines.
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 * @modes: Supported modes. See SND_AUDIOMODE defines
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 * @formats: Supported formats. See SND_AUDIOSTREAMFORMAT defines
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 * @min_buffer: Minimum buffer size handled by codec implementation
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 * @pcm_formats: Output (for decoders) or input (for encoders)
398
 *               PCM formats (required to accel mode, 0 for other modes)
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 * @u_space: union space (for codec dependent data)
400
 * @reserved: reserved for future use
401
 *
402
 * This structure provides a scalar value for profiles, modes and stream
403
 * format fields.
404
 * If an implementation supports multiple combinations, they will be listed as
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 * codecs with different descriptors, for example there would be 2 descriptors
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 * for AAC-RAW and AAC-ADTS.
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 * This entails some redundancy but makes it easier to avoid invalid
408
 * configurations.
409
 *
410
 */
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struct snd_codec_desc {
413
	__u32 max_ch;
414
	__u32 sample_rates[MAX_NUM_SAMPLE_RATES];
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	__u32 num_sample_rates;
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	__u32 bit_rate[MAX_NUM_BITRATES];
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	__u32 num_bitrates;
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	__u32 rate_control;
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	__u32 profiles;
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	__u32 modes;
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	__u32 formats;
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	__u32 min_buffer;
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	__u32 pcm_formats;
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	union {
425
		__u32 u_space[6];
426
		struct snd_codec_desc_src src;
427
	} __attribute__((packed, aligned(4)));
428
	__u32 reserved[8];
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} __attribute__((packed, aligned(4)));
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/** struct snd_codec
432
 * @id: Identifies the supported audio encoder/decoder.
433
 *		See SND_AUDIOCODEC macros.
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 * @ch_in: Number of input audio channels
435
 * @ch_out: Number of output channels. In case of contradiction between
436
 *		this field and the channelMode field, the channelMode field
437
 *		overrides.
438
 * @sample_rate: Audio sample rate of input data in Hz, use values like 48000
439
 *		for this.
440
 * @bit_rate: Bitrate of encoded data. May be ignored by decoders
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 * @rate_control: Encoding rate control. See SND_RATECONTROLMODE defines.
442
 *               Encoders may rely on profiles for quality levels.
443
 *		 May be ignored by decoders.
444
 * @profile: Mandatory for encoders, can be mandatory for specific
445
 *		decoders as well. See SND_AUDIOPROFILE defines.
446
 * @level: Supported level (Only used by WMA at the moment)
447
 * @ch_mode: Channel mode for encoder. See SND_AUDIOCHANMODE defines
448
 * @format: Format of encoded bistream. Mandatory when defined.
449
 *		See SND_AUDIOSTREAMFORMAT defines.
450
 * @align: Block alignment in bytes of an audio sample.
451
 *		Only required for PCM or IEC formats.
452
 * @options: encoder-specific settings
453
 * @pcm_format: Output (for decoders) or input (for encoders)
454
 *               PCM formats (required to accel mode, 0 for other modes)
455
 * @reserved: reserved for future use
456
 */
457

458
struct snd_codec {
459
	__u32 id;
460
	__u32 ch_in;
461
	__u32 ch_out;
462
	__u32 sample_rate;
463
	__u32 bit_rate;
464
	__u32 rate_control;
465
	__u32 profile;
466
	__u32 level;
467
	__u32 ch_mode;
468
	__u32 format;
469
	__u32 align;
470
	union snd_codec_options options;
471
	__u32 pcm_format;
472
	__u32 reserved[2];
473
} __attribute__((packed, aligned(4)));
474

475
#endif
476

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