41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
#ifndef __AUDIO_CH_SWAP__H
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#define __AUDIO_CH_SWAP__H
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#include "media/audio_stream.h"
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#ifndef RUN_NORMAL
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#define RUN_NORMAL 0
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#endif
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#ifndef RUN_BYPASS
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#define RUN_BYPASS 1
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#endif
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struct aud_ch_swap {
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u32 swap_name;
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u8 channel;//通道数
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u8 indata_inc;//2;
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u8 bit_wide;//0:16bit 1：32bit
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};
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struct audio_ch_swap {
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struct audio_stream_entry entry; // 音频流入口
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struct list_head hentry; //
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struct aud_ch_swap parm;
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u8 status; //内部运行状态机
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u8 update; //设置参数更新标志
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};
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struct audio_ch_swap *audio_ch_swap_process_open(struct aud_ch_swap *parm);
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void audio_ch_swap_run(struct audio_ch_swap *hdl, s16 *data, int len);
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void audio_ch_swap_close(struct audio_ch_swap *hdl);
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void audio_ch_swap_bypass(u32 swap_name, u8 bypass);
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struct audio_ch_swap *get_cur_swap_hdl_by_name(u32 swap_name);
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/*
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*声道互换接口，只支持立体声
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*/
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void TwoChannelSwap_16Bit(short *in, short *out, int channel, int IndataInc, int per_channel_npoint);
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void TwoChannelSwap_32Bit(int *in, int *out, int channel, int IndataInc, int per_channel_npoint);
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#endif
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