557 lines
21 KiB
C
557 lines
21 KiB
C
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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 <pierre-louis.bossart@linux.intel.com>
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* Vinod Koul <vinod.koul@linux.intel.com>
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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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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*
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* Copyright (c) 2007-2010 The Khronos Group Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and/or associated documentation files (the
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* "Materials "), to deal in the Materials without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Materials, and to
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* permit persons to whom the Materials are furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Materials.
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*
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* THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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*
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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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/* Maximum PCM channels */
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#define MAX_PCM_DECODE_CHANNELS 32
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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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/* compressed TX */
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#define MAX_NUM_FRAMES_PER_BUFFER 1
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#define COMPRESSED_META_DATA_MODE 0x10
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#define META_DATA_LEN_BYTES 36
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#define Q6_AC3_DECODER 0x00010BF6
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#define Q6_EAC3_DECODER 0x00010C3C
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#define Q6_DTS 0x00010D88
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#define Q6_DTS_LBR 0x00010DBB
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/* Timestamp flsg */
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/* Bit-0 - 1 : Enable Timestamp mode */
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/* Bit-0 - 0 : Disable Timestamp mode */
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#define COMPRESSED_TIMESTAMP_FLAG 0x0001
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/* Perf mode flag */
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/* Bit-1 - 1 : Enable perf mode */
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/* Bit-1 - 0 : Disable perf mode */
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#define COMPRESSED_PERF_MODE_FLAG 0x0002
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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_DTS_PASS_THROUGH ((__u32) 0x0000000F)
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#define SND_AUDIOCODEC_DTS_LBR ((__u32) 0x00000010)
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#define SND_AUDIOCODEC_DTS_TRANSCODE_LOOPBACK ((__u32) 0x00000011)
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#define SND_AUDIOCODEC_PASS_THROUGH ((__u32) 0x00000012)
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#define SND_AUDIOCODEC_MP2 ((__u32) 0x00000013)
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#define SND_AUDIOCODEC_DTS_LBR_PASS_THROUGH ((__u32) 0x00000014)
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#define SND_AUDIOCODEC_AC3 ((__u32) 0x00000015)
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#define SND_AUDIOCODEC_AC3_PASS_THROUGH ((__u32) 0x00000016)
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#define SND_AUDIOCODEC_WMA_PRO ((__u32) 0x00000017)
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#define SND_AUDIOCODEC_DTS ((__u32) 0x00000018)
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#define SND_AUDIOCODEC_EAC3 ((__u32) 0x00000019)
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#define SND_AUDIOCODEC_ALAC ((__u32) 0x00000020)
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#define SND_AUDIOCODEC_APE ((__u32) 0x00000021)
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#define SND_AUDIOCODEC_DSD ((__u32) 0x00000022)
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#define SND_AUDIOCODEC_APTX ((__u32) 0x00000023)
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#define SND_AUDIOCODEC_TRUEHD ((__u32) 0x00000024)
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#define SND_AUDIOCODEC_MAT ((__u32) 0x00000025)
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#define SND_AUDIOCODEC_THD ((__u32) 0x00000026)
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#define SND_AUDIOCODEC_MAX SND_AUDIOCODEC_THD
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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_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)
|
||
|
|
|
||
|
|
/* <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 */
|
||
|
|
__u32 bits_per_sample;
|
||
|
|
__u32 channelmask;
|
||
|
|
__u32 encodeopt;
|
||
|
|
__u32 encodeopt1;
|
||
|
|
__u32 encodeopt2;
|
||
|
|
__u32 avg_bit_rate;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define SND_ENC_WMA_EXTENTED_SUPPORT
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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)));
|
||
|
|
|
||
|
|
#define SND_DEC_THD_MAX_PARAMS 8
|
||
|
|
struct snd_dec_thd {
|
||
|
|
__u32 params_length;
|
||
|
|
__u32 params_id[SND_DEC_THD_MAX_PARAMS];
|
||
|
|
__u32 params_value[SND_DEC_THD_MAX_PARAMS];
|
||
|
|
} __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;
|
||
|
|
} __attribute__((packed, aligned(4)));
|
||
|
|
|
||
|
|
#define SND_DEC_FLAC_SUPPORTED
|
||
|
|
|
||
|
|
struct snd_dec_vorbis {
|
||
|
|
__u32 bit_stream_fmt;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct snd_dec_alac {
|
||
|
|
__u32 frame_length;
|
||
|
|
__u8 compatible_version;
|
||
|
|
__u8 bit_depth;
|
||
|
|
__u8 pb;
|
||
|
|
__u8 mb;
|
||
|
|
__u8 kb;
|
||
|
|
__u8 num_channels;
|
||
|
|
__u16 max_run;
|
||
|
|
__u32 max_frame_bytes;
|
||
|
|
__u32 avg_bit_rate;
|
||
|
|
__u32 sample_rate;
|
||
|
|
__u32 channel_layout_tag;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct snd_dec_ape {
|
||
|
|
__u16 compatible_version;
|
||
|
|
__u16 compression_level;
|
||
|
|
__u32 format_flags;
|
||
|
|
__u32 blocks_per_frame;
|
||
|
|
__u32 final_frame_blocks;
|
||
|
|
__u32 total_frames;
|
||
|
|
__u16 bits_per_sample;
|
||
|
|
__u16 num_channels;
|
||
|
|
__u32 sample_rate;
|
||
|
|
__u32 seek_table_present;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct snd_dec_aptx {
|
||
|
|
__u32 lap;
|
||
|
|
__u32 uap;
|
||
|
|
__u32 nap;
|
||
|
|
};
|
||
|
|
|
||
|
|
/** struct snd_dec_dsd - codec for DSD format
|
||
|
|
* @blk_size - dsd channel block size
|
||
|
|
*/
|
||
|
|
struct snd_dec_dsd {
|
||
|
|
__u32 blk_size;
|
||
|
|
};
|
||
|
|
|
||
|
|
/** struct snd_dec_pcm - codec options for PCM format
|
||
|
|
* @num_channels: Number of channels
|
||
|
|
* @ch_map: Channel map for the above corresponding channels
|
||
|
|
*/
|
||
|
|
struct snd_dec_pcm {
|
||
|
|
__u32 num_channels;
|
||
|
|
__u8 ch_map[MAX_PCM_DECODE_CHANNELS];
|
||
|
|
} __attribute__((packed, aligned(4)));
|
||
|
|
|
||
|
|
struct snd_dec_amrwb_plus {
|
||
|
|
__u32 bit_stream_fmt;
|
||
|
|
};
|
||
|
|
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_dec;
|
||
|
|
struct snd_dec_vorbis vorbis_dec;
|
||
|
|
struct snd_dec_alac alac;
|
||
|
|
struct snd_dec_ape ape;
|
||
|
|
struct snd_dec_aptx aptx_dec;
|
||
|
|
struct snd_dec_thd truehd;
|
||
|
|
struct snd_dec_pcm pcm_dec;
|
||
|
|
struct snd_dec_amrwb_plus amrwbplus;
|
||
|
|
struct snd_dec_dsd dsd_dec;
|
||
|
|
};
|
||
|
|
|
||
|
|
/** 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
|
||
|
|
* @compr_passthr: compressed bitstream passthrough
|
||
|
|
* @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 compr_passthr;
|
||
|
|
__u32 flags;
|
||
|
|
__u32 reserved[1];
|
||
|
|
} __attribute__((packed, aligned(4)));
|
||
|
|
|
||
|
|
#define SND_CODEC_COMPRESS_PASSTHROUGH
|
||
|
|
|
||
|
|
/** struct snd_codec_metadata
|
||
|
|
* @length: Length of the encoded buffer.
|
||
|
|
* @offset: Offset from the buffer address to the first byte of the first
|
||
|
|
* encoded frame. All encoded frames are consecutive starting
|
||
|
|
* from this offset.
|
||
|
|
* @timestamp: Session time in microseconds of the first sample in the buffer.
|
||
|
|
* @reserved: Reserved for future use.
|
||
|
|
*/
|
||
|
|
struct snd_codec_metadata {
|
||
|
|
__u32 length;
|
||
|
|
__u32 offset;
|
||
|
|
__u64 timestamp;
|
||
|
|
__u32 reserved[4];
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|