Initial community commit

Src/bmp/avi_yuv_decoder.cpp

@@ -0,0 +1,117 @@
+#include "avi_yuv_decoder.h"
+#include "../Winamp/wa_ipc.h"
+#include <limits.h>
+#include <bfc/error.h>
+#include <intsafe.h>
+
+int BMP_GetMallocSize(int32_t height, int32_t width, int32_t bits_per_pixel, size_t *out_frame_bytes);
+
+AVIYUV *AVIYUV::CreateDecoder(nsavi::video_format *stream_format)
+{
+	AVIYUV *decoder = new AVIYUV( stream_format);
+	if (!decoder)
+	{
+		return 0;	
+	}
+
+	if (decoder->Initialize() != NErr_Success)
+	{
+		delete decoder;
+		return 0;
+	}
+	return decoder;
+}
+
+
+AVIYUV::AVIYUV(nsavi::video_format *stream_format) : stream_format(stream_format)
+{
+	video_frame=0;
+	video_frame_size_bytes=0;
+	o=false;
+}
+
+AVIYUV::~AVIYUV()
+{
+	free(video_frame);
+}
+
+
+int AVIYUV::Initialize()
+{
+	size_t frame_bytes;
+	int ret = BMP_GetMallocSize(stream_format->height, stream_format->width, 16, &frame_bytes);
+	if (ret != NErr_Success)
+		return ret;
+
+	video_frame=malloc(frame_bytes);
+	if (!video_frame)
+		return NErr_OutOfMemory;
+
+	video_frame_size_bytes = frame_bytes;
+	return NErr_Success;
+}
+
+int AVIYUV::GetOutputProperties(int *x, int *y, int *color_format, double *aspect_ratio, int *flip)
+{
+	if (stream_format)
+	{
+		*x = stream_format->width;
+		*y = stream_format->height;
+		//*flip = 1;
+		*color_format = stream_format->compression;
+		return AVI_SUCCESS;
+	}
+		
+	return AVI_FAILURE;
+}
+
+int AVIYUV::DecodeChunk(uint16_t type, const void *inputBuffer, size_t inputBufferBytes)
+{
+	if (stream_format)
+	{
+		if (video_frame_size_bytes < inputBufferBytes)
+			return AVI_FAILURE;
+		memcpy(video_frame, inputBuffer, inputBufferBytes);
+		//video_frame = inputBuffer; // heh
+		o=true;
+		return AVI_SUCCESS;
+	}
+
+	return AVI_FAILURE;
+}
+
+void AVIYUV::Flush()
+{
+
+}
+
+int AVIYUV::GetPicture(void **data, void **decoder_data)
+{
+	if (o && video_frame)
+	{
+		*data =(void *) video_frame;
+		*decoder_data=0;
+		//video_frame=0;
+		o=false;
+		//video_outputted=true;
+		return AVI_SUCCESS;
+	}
+	
+	return AVI_FAILURE;
+}
+
+void AVIYUV::Close()
+{
+	delete this;
+}
+
+
+#define CBCLASS AVIYUV
+START_DISPATCH;
+CB(GET_OUTPUT_PROPERTIES, GetOutputProperties)
+CB(DECODE_CHUNK, DecodeChunk)
+VCB(FLUSH, Flush)
+VCB(CLOSE, Close)
+CB(GET_PICTURE, GetPicture)
+END_DISPATCH;
+#undef CBCLASS