63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
#ifndef SPEAKER_H
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#define SPEAKER_H
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#include <stdint.h>
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#include <stdlib.h>
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#include <string>
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#include <cstring>
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#include <vector>
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#include "freertos/FreeRTOS.h"
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#include "freertos/queue.h"
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#include "freertos/task.h"
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#include "driver/i2s_std.h"
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#include "driver/gpio.h"
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#include "esp_check.h"
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#include "sdkconfig.h"
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#include "sd.h"
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#define SPEAKER_PIN_BCLK GPIO_NUM_46
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#define SPEAKER_PIN_WS GPIO_NUM_9
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#define SPEAKER_PIN_DOUT GPIO_NUM_3
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#define SAMPLE_RATE 44100
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// The maximum number of clips that can be queued at one time.
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#define CLIP_QUEUE_SIZE 8
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extern i2s_chan_handle_t tx_chan;
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typedef struct {
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/// A dynamically allocated string specifying the name of the
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/// file to play. The speaker system will free this once it
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/// is done.
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char* file_name;
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/// A number that all samples will be shifted right by.
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uint8_t prescaler;
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/// A flag for repeating.
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bool repeat;
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/// A flag for starting the clip immediatly,
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/// even if there is another clip playing.
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bool play_immediatly;
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} audio_clip_t;
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/// @brief Initalizes the speaker
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void init_speaker();
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/// @brief Plays a wav audio clip.
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/// @param file_name The name of the file to play. Fully qualified with the `.wav` extention.
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/// @param play_immediatly If `true`, the file will play immediatly even if there is already
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/// another clip being played. The two clips will play simultaniously. If `false` the clip
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/// will play once all the previous clips have finished.
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/// @param repeat If `true` the clip will repeat until stopped. If `false` the clip will
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/// stop when finished.
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/// @param prescaler A number to shift right all samples by. This makes the music half as
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/// loud. Useful for loud audio files.
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/// @param ticks_to_wait The number of ticks to wait if the queue is full.
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/// @return true if the clip was added to the queue.
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bool play_clip_wav(const char* file_name, bool play_immediatly, bool repeat, uint8_t prescaler, TickType_t ticks_to_wait);
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/// @brief Stops an audio clip from playing.
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/// @param file_name The file name of the audio clip that was played.
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/// @param ticks_to_wait The number of ticks to wait if the queue is full.
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/// @return true if the clip was added to the queue.
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bool stop_clip(const char* file_name, TickType_t ticks_to_wait);
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#endif /* SPEAKER_H */ |