1 files changed, 43 insertions, 0 deletions
diff --git a/third_party/miniaudio_libopus.h b/third_party/miniaudio_libopus.h
new file mode 100644
index 00000000..93b34910
--- /dev/null
+++ b/third_party/miniaudio_libopus.h
@@ -0,0 +1,43 @@
+/*
+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 "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 */
+