huxi
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*****************************************************************
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>file name : audio_src_base.h
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>create time : Wed 02 Mar 2022 11:12:07 AM CST
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*****************************************************************/
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#ifndef _AUDIO_SRC_BASE_H_
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#define _AUDIO_SRC_BASE_H_
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#include "typedef.h"
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#define AUDIO_ONLY_RESAMPLE 1
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#define AUDIO_SYNC_RESAMPLE 2
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#define AUDIO_LOW_LATENCY_RESAMPLE 3
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#define AUDIO_RESAMPLE_SYNC_OUTPUT 4
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#define AUDIO_SRC_HIGH_PERFORMANCE 5
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#define AUDIO_SAMPLE_FMT_16BIT 0
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#define AUDIO_SAMPLE_FMT_24BIT 1
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#define BIND_AUDSYNC 0x10
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#define SET_RESAMPLE_TYPE(fmt, type) (((fmt) << 4) | (type))
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#define RESAMPLE_TYPE_TO_FMT(a) (((a) >> 4) & 0xf)
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#define RESAMPLE_TYPE(a) ((a) & 0xf)
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#define INPUT_FRAME_BITS 18//20 -- 整数位减少可提高单精度浮点的运算精度
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#define RESAMPLE_INPUT_BIT_RANGE ((1 << INPUT_FRAME_BITS) - 1)
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#define RESAMPLE_INPUT_BIT_NUM (1 << INPUT_FRAME_BITS)
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struct resample_frame {
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u8 nch;
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int offset;
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int len;
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int size;
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void *data;
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};
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void *audio_src_base_open(u8 channel, int in_sample_rate, int out_sample_rate, u8 type);
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int audio_src_base_set_output_handler(void *resample,
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void *priv,
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int (*handler)(void *priv, void *data, int len));
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int audio_src_base_set_channel(void *resample, u8 channel);
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int audio_src_base_set_in_buffer(void *resample, void *buf, int len);
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int audio_src_base_set_input_buff(void *resample, void *buf, int len);
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int audio_src_base_resample_config(void *resample, int in_rate, int out_rate);
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int audio_src_base_write(void *resample, void *data, int len);
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int audio_src_base_stop(void *resample);
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int audio_src_base_run_scale(void *resample);
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int audio_src_base_input_frames(void *resample);
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u32 audio_src_base_out_frames(void *resample);
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float audio_src_base_position(void *resample);
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int audio_src_base_scale_output(void *resample, int in_sample_rate, int out_sample_rate, int frames);
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int audio_src_base_bufferd_frames(void *resample);
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int audio_src_base_set_silence(void *resample, u8 silence, int fade_time);
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int audio_src_base_wait_irq_callback(void *resample, void *priv, void (*callback)(void *));
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int audio_src_base_frame_resample(void *resample, struct resample_frame *in_frame, struct resample_frame *out_frame);
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int audio_src_base_get_phase(void *resample);
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void audio_src_base_close(void *resample);
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int audio_src_base_filter_frames(void *resample);
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u8 audio_src_base_get_hw_core_id(void *resample);
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int audio_src_base_push_data_out(void *resample);
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#endif
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