huxi
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
#ifndef AUDIO_BASE_H
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#define AUDIO_BASE_H
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#include "generic/typedef.h"
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#include "audio_def.h"
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#define AUDIO_INPUT_FILE 0x01
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#define AUDIO_INPUT_FRAME 0x02
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enum audio_channel {
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AUDIO_CH_L = (1 << 4) | 1, //左声道（单声道）
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AUDIO_CH_R = (1 << 4) | 2, //右声道（单声道）
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AUDIO_CH_DIFF = (1 << 4) | 3, //差分（单声道）
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AUDIO_CH_MIX = (1 << 4) | 4, //左右声道混合(单声道)
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AUDIO_CH_LR = (2 << 4) | 5, //立体声
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AUDIO_CH_DUAL_L = (2 << 4) | 6, //双声道都为左
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AUDIO_CH_DUAL_R = (2 << 4) | 7, //双声道都为右
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AUDIO_CH_DUAL_LR = (2 << 4) | 8, //双声道为左右混合
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AUDIO_CH_QUAD = (4 << 4) | 9, //四声道（LRLR）
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AUDIO_CH_MAX = 0xff,
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};
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#define AUDIO_CH_NUM(ch) ((ch) >> 4)
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/*! \brief 音频处理结构 */
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struct audio_fmt {
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u8 channel; /*!< */
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u16 frame_len; /*!< 幁长度 (bytes)*/
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u16 sample_rate; /*!< 采样率 e.g. 48kHz/44.1kHz/32kHz*/
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u32 coding_type;
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u32 bit_rate; /*!< 比特率 (bps)*/
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u32 total_time;
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u32 quality;
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u32 complexity;
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void *priv;
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};
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#endif
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