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https://github.com/arabine/open-story-teller.git
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55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <ff.h>
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#define AUDIO_BUFFER_FRAMES (128) // in bytes
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#define STEREO_BUFFER_SIZE AUDIO_BUFFER_FRAMES * 2 // for left + right
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#define FILENAME_MAX_SIZE 260
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typedef struct
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{
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char filename[FILENAME_MAX_SIZE];
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uint32_t info_start;
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uint32_t info_size;
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uint32_t info_offset;
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uint32_t data_start;
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uint32_t data_size;
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uint32_t data_offset;
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uint32_t sample_rate;
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uint16_t channels;
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char artist[256];
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char title[256];
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char album[256];
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char number[8];
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uint32_t lvl_l;
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uint32_t lvl_r;
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} audio_info_type_t;
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typedef struct
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{
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FIL fil;
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audio_info_type_t audio_info;
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int32_t transfer_size;
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uint16_t idx_play;
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int next_is_end;
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int playing;
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int pausing;
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int finished; // means the player has finished to play whole files in the folder (by not stop)
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uint32_t data_offset;
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uint8_t header[36];
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int count;
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int volume; // 0 ~ 100;
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} audio_ctx_t;
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void audio_init(audio_ctx_t *ctx);
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int audio_process(audio_ctx_t *ctx);
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int audio_play(audio_ctx_t *ctx, const char *fname_ptr);
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void audio_pause(audio_ctx_t *ctx);
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void audio_stop(audio_ctx_t *ctx);
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