video-pc/libs/Recorder/resample_pcm.h

#ifndef RESAMPLE_PCM
#define RESAMPLE_PCM

#include <stdint.h>

#include "headers_ffmpeg.h"

namespace am {
typedef struct
{
    int nb_samples;
    int64_t channel_layout;
    int nb_channels;
    AVSampleFormat fmt;
    int sample_rate;
} SAMPLE_SETTING;

class resample_pcm
{
public:
    resample_pcm();
    ~resample_pcm();

    int init(const SAMPLE_SETTING *sample_src,
             const SAMPLE_SETTING *sample_dst,
             __out int *resapmled_frame_size);
    int convert(const uint8_t *src, int src_len, uint8_t *dst, int dst_len);

protected:
    void cleanup();

private:
    SwrContext *_ctx;
    SAMPLE_SETTING *_sample_src;
    SAMPLE_SETTING *_sample_dst;
};
} // namespace am
#endif