98 lines
1.8 KiB
C
98 lines
1.8 KiB
C
#include <stdbool.h>
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#include <limits.h>
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#ifndef mice_playback_h
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#define mice_playback_h
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/* Channel to play music on */
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#define CHANNEL 0x08
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struct decoder_fn
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{
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/**
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* Set decoder parameters.
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* \param decoder Structure to store parameters.
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* \return 0 on success, else failure.
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*/
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int (* init)(const char* file);
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/**
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* Get sampling rate of file.
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* \return Sampling rate.
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*/
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uint32_t (* rate)(void);
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/**
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* Get number of channels of file.
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* \return Number of channels for opened file.
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*/
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uint8_t (* channels)(void);
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/**
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* Size of output buffer used in decode().
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*/
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size_t buffSize;
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/**
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* Fill buffer with decoded samples.
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* \param buffer Output buffer to fill.
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* \return Samples read for each channel.
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*/
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uint64_t (* decode)(void*);
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/**
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* Free codec resources.
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*/
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void (* exit)(void);
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/**
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* Optional. Set to NULL if unavailable.
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* Get number of samples in audio file.
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*/
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size_t (* getFileSamples)(void);
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};
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struct playbackInfo_t
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{
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char file[PATH_MAX];
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struct errInfo_t *errInfo;
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/* If 0, then the duration of file is unavailable. */
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size_t samples_total;
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size_t samples_played;
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size_t samples_per_second;
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};
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/**
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* Pause or play current file.
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*
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* \return True if paused.
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*/
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bool togglePlayback(void);
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/**
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* Stops current playback. Playback thread should exit as a result.
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*/
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void stopPlayback(void);
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/**
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* Returns whether music is playing or paused.
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*/
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bool isPlaying(void);
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/**
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* Returns whether playback is currently paused.
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*/
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bool isPaused(void);
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/**
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* Should only be called from a new thread only, and have only one playback
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* thread at time. This function has not been written for more than one
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* playback thread in mind.
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*
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* \param infoIn Playback information.
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*/
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void playFile(void* infoIn);
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#endif
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