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#ifndef AUDIO_RESAMPLER_H_
#define AUDIO_RESAMPLER_H_
#include <libavutil/channel_layout.h>
#include <libavutil/samplefmt.h>
#include <libswresample/swresample.h>
#include "decoder.h"
#include "encoder.h"
struct Resampler {
SwrContext *swr;
uint64_t stored;
uint64_t needed;
int in_sample_rate;
/* Passed by *_init, used by *_conf */
const AVChannelLayout *out_chlayout;
enum AVSampleFormat out_sample_fmt;
uint64_t out_sample_rate;
uint64_t out_frame_size;
};
int resampler_init_for_encoder (struct Resampler *resampler, const struct Encoder *encoder);
int resampler_conf_for_decoder (struct Resampler *resampler, const struct Decoder *decoder);
int resampler_send_frame (struct Resampler *resampler, AVFrame *in);
int resampler_send_empty (struct Resampler *resampler, unsigned int microsecond);
int resampler_convert (struct Resampler *resmapler, AVFrame *out);
int resampler_has_enough (struct Resampler *resampler);
void resampler_free (struct Resampler *resampler);
#endif // AUDIO_RESAMPLER_H_
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