Merge pull request #5 from WinampDesktop/community

Merge to main

1 files changed, 45 insertions, 0 deletions

diff --git a/Src/mp3-mpg123/avi_mp3_decoder.h b/Src/mp3-mpg123/avi_mp3_decoder.h
new file mode 100644
index 00000000..1bb2f608
--- /dev/null
+++ b/Src/mp3-mpg123/avi_mp3_decoder.h
@@ -0,0 +1,45 @@
+#pragma once
+#include "../Plugins/Input/in_avi/svc_avidecoder.h"
+#include "../Plugins/Input/in_avi/ifc_aviaudiodecoder.h"
+#include <mpg123.h>
+
+// {11D89BF5-014E-463a-B284-385FF0662FCC}
+static const GUID avi_mp3_guid = 
+{ 0x11d89bf5, 0x14e, 0x463a, { 0xb2, 0x84, 0x38, 0x5f, 0xf0, 0x66, 0x2f, 0xcc } };
+
+class AVIDecoder : public svc_avidecoder
+{
+public:
+	static const char *getServiceName() { return "MP3 AVI Decoder"; }
+	static GUID getServiceGuid() { return avi_mp3_guid; }
+	int CreateAudioDecoder(const nsavi::AVIH *avi_header, const nsavi::STRH *stream_header, const nsavi::STRF *stream_format, const nsavi::STRD *stream_data, unsigned int preferred_bits, unsigned int max_channels, bool floating_point, ifc_aviaudiodecoder **decoder);
+protected:
+	RECVS_DISPATCH;
+};
+
+class AVIMP3Decoder : public ifc_aviaudiodecoder
+{
+public:
+	AVIMP3Decoder(mpg123_handle *mp3, unsigned int bps, unsigned max_channels, bool floating_point);
+	~AVIMP3Decoder();
+	
+protected:
+	RECVS_DISPATCH;
+private:
+	/* ifc_mkvaudiodecoder implementation */
+	int OutputFrameSize(size_t *frame_size);
+	int GetOutputProperties(unsigned int *sampleRate, unsigned int *channels, unsigned int *bitsPerSample, bool *isFloat);
+	int DecodeChunk(uint16_t type, void **inputBuffer, size_t *inputBufferBytes, void *outputBuffer, size_t *outputBufferBytes);
+	void Flush();
+	void Close();
+
+private:
+	mpg123_handle *mp3;
+	unsigned int bits;
+	int pregap;
+	unsigned int max_channels;
+	bool floating_point;
+	unsigned int channels;
+	float *decode_buffer;
+	size_t decode_buffer_length;
+};
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