/*
This implements a data source that decodes Opus streams via libopus +
libopusfile

This object can be plugged into any `ma_data_source_*()` API and can also be
used as a custom decoding backend. See the custom_decoder example.
*/
#ifndef miniaudio_libopus_h
#define miniaudio_libopus_h

#ifdef __cplusplus
extern "C" {
#endif

#include <audioapi/libs/miniaudio/miniaudio.h>

typedef struct {
  ma_data_source_base
      ds; /* The libopus decoder can be used independently as a data source. */
  ma_read_proc onRead;
  ma_seek_proc onSeek;
  ma_tell_proc onTell;
  void *pReadSeekTellUserData;
  ma_format format; /* Will be either f32 or s16. */
  /*OggOpusFile**/ void *of; /* Typed as void* so we can avoid a dependency on
                                opusfile in the header section. */
} ma_libopus;

MA_API ma_result ma_libopus_init(
    ma_read_proc onRead,
    ma_seek_proc onSeek,
    ma_tell_proc onTell,
    void *pReadSeekTellUserData,
    const ma_decoding_backend_config *pConfig,
    const ma_allocation_callbacks *pAllocationCallbacks,
    ma_libopus *pOpus);
MA_API ma_result ma_libopus_init_file(
    const char *pFilePath,
    const ma_decoding_backend_config *pConfig,
    const ma_allocation_callbacks *pAllocationCallbacks,
    ma_libopus *pOpus);
MA_API void ma_libopus_uninit(
    ma_libopus *pOpus,
    const ma_allocation_callbacks *pAllocationCallbacks);
MA_API ma_result ma_libopus_read_pcm_frames(
    ma_libopus *pOpus,
    void *pFramesOut,
    ma_uint64 frameCount,
    ma_uint64 *pFramesRead);
MA_API ma_result
ma_libopus_seek_to_pcm_frame(ma_libopus *pOpus, ma_uint64 frameIndex);
MA_API ma_result ma_libopus_get_data_format(
    ma_libopus *pOpus,
    ma_format *pFormat,
    ma_uint32 *pChannels,
    ma_uint32 *pSampleRate,
    ma_channel *pChannelMap,
    size_t channelMapCap);
MA_API ma_result
ma_libopus_get_cursor_in_pcm_frames(ma_libopus *pOpus, ma_uint64 *pCursor);
MA_API ma_result
ma_libopus_get_length_in_pcm_frames(ma_libopus *pOpus, ma_uint64 *pLength);

/* Decoding backend vtable. This is what you'll plug into
 * ma_decoder_config.pBackendVTables. No user data required. */
extern ma_decoding_backend_vtable *ma_decoding_backend_libopus;

#ifdef __cplusplus
}
#endif
#endif /* miniaudio_libopus_h */