mlt_audio.h

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#ifndef MLT_AUDIO_H
#define MLT_AUDIO_H
 
#include "mlt_export.h"
#include "mlt_types.h"
 
struct mlt_audio_s
{
    void *data;
    int frequency;
    mlt_audio_format format;
    int samples;
    int channels;
    mlt_channel_layout layout;
    mlt_destructor release_data;
    mlt_destructor close;
};
 
MLT_EXPORT mlt_audio mlt_audio_new();
MLT_EXPORT void mlt_audio_close(mlt_audio self);
MLT_EXPORT void mlt_audio_set_values(
    mlt_audio self, void *data, int frequency, mlt_audio_format format, int samples, int channels);
MLT_EXPORT void mlt_audio_get_values(mlt_audio self,
                                     void **data,
                                     int *frequency,
                                     mlt_audio_format *format,
                                     int *samples,
                                     int *channels);
MLT_EXPORT void mlt_audio_alloc_data(mlt_audio self);
MLT_EXPORT void mlt_audio_free_data(mlt_audio self);
MLT_EXPORT int mlt_audio_calculate_size(mlt_audio self);
MLT_EXPORT int mlt_audio_plane_count(mlt_audio self);
MLT_EXPORT int mlt_audio_plane_size(mlt_audio self);
MLT_EXPORT void mlt_audio_get_planes(mlt_audio self, uint8_t **planes);
MLT_EXPORT void mlt_audio_silence(mlt_audio self, int samples, int start);
MLT_EXPORT void mlt_audio_shrink(mlt_audio self, int samples);
MLT_EXPORT void mlt_audio_reverse(mlt_audio self);
MLT_EXPORT void mlt_audio_copy(
    mlt_audio dst, mlt_audio src, int samples, int src_start, int dst_start);
MLT_EXPORT int mlt_audio_calculate_frame_samples(float fps, int frequency, int64_t position);
MLT_EXPORT int64_t mlt_audio_calculate_samples_to_position(float fps,
                                                           int frequency,
                                                           int64_t position);
MLT_EXPORT const char *mlt_audio_format_name(mlt_audio_format format);
MLT_EXPORT int mlt_audio_format_size(mlt_audio_format format, int samples, int channels);
MLT_EXPORT const char *mlt_audio_channel_layout_name(mlt_channel_layout layout);
MLT_EXPORT mlt_channel_layout mlt_audio_channel_layout_id(const char *name);
MLT_EXPORT int mlt_audio_channel_layout_channels(mlt_channel_layout layout);
MLT_EXPORT mlt_channel_layout mlt_audio_channel_layout_default(int channels);
 
#endif