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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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