Initial community commit

Src/vp8x/mkv_vp8x_decoder.cpp

@@ -0,0 +1,150 @@
+#include "mkv_vp8x_decoder.h"
+#include "../nsmkv/Lacing.h"
+#include "../nsmkv/Cluster.h"
+#include <mmsystem.h>
+
+int MKVDecoder::CreateVideoDecoder(const char *codec_id, const nsmkv::TrackEntryData *track_entry_data, const nsmkv::VideoData *video_data, ifc_mkvvideodecoder **decoder)
+{
+	if (!strcmp(codec_id, "V_VP8"))
+	{
+		vpx_codec_ctx_t codec;
+		if (vpx_codec_dec_init(&codec, &vpx_codec_vp8_dx_algo, NULL, 0) == VPX_CODEC_OK)
+		{
+			MKVVP8 *vp8 = new MKVVP8(codec, video_data);
+			*decoder = vp8;
+			return CREATEDECODER_SUCCESS;
+		}
+#if 0
+
+		nsmkv::LacingState lacing_state;
+		if (nsmkv::Lacing::GetState(nsmkv::BlockBinary::XIPH_LACING, (const uint8_t *)track_entry_data->codec_private, track_entry_data->codec_private_len, &lacing_state))
+		{
+			const uint8_t *frame;
+			size_t frame_len;
+			uint16_t frame_number=0;
+			while (nsmkv::Lacing::GetFrame(frame_number, (const uint8_t *)track_entry_data->codec_private, track_entry_data->codec_private_len, &frame, &frame_len, &lacing_state))
+			{
+				ogg_packet packet = {const_cast<uint8_t *>(frame), frame_len, (frame_number==0), 0, 0 /*-1?*/, theora->packet_number++};
+				int ret = th_decode_headerin(&theora->info, &theora->comment, &theora->setup, &packet);
+				if (ret < 0)
+					goto bail;
+				frame_number++;
+			}
+			theora->decoder = th_decode_alloc(&theora->info, theora->setup);
+			if (!theora->decoder)
+				goto bail;
+
+			*decoder = theora;
+			return CREATEDECODER_SUCCESS;
+		}
+
+bail:
+		delete theora;
+#endif
+		return CREATEDECODER_FAILURE;
+
+	}
+	else
+	{
+		return CREATEDECODER_NOT_MINE;
+	}
+}
+
+
+#define CBCLASS MKVDecoder
+START_DISPATCH;
+CB(CREATE_VIDEO_DECODER, CreateVideoDecoder)
+END_DISPATCH;
+#undef CBCLASS
+
+MKVVP8::MKVVP8(vpx_codec_ctx_t decoder, const nsmkv::VideoData *video_data) : decoder(decoder), video_data(video_data)
+{
+	flushing=false;
+}
+
+int MKVVP8::GetOutputProperties(int *x, int *y, int *color_format, double *aspect_ratio)
+{
+	vpx_codec_stream_info_t stream_info;
+	stream_info.sz = sizeof(stream_info);
+	if (vpx_codec_get_stream_info(&decoder, &stream_info) == VPX_CODEC_OK)
+	{
+		*x = stream_info.w;
+		*y = stream_info.h;
+		*aspect_ratio=1.0;
+		*color_format = mmioFOURCC('Y','V','1','2');
+		return MKV_SUCCESS;
+	}
+
+	return MKV_FAILURE;
+}
+
+int MKVVP8::DecodeBlock(const void *inputBuffer, size_t inputBufferBytes, uint64_t timestamp)
+{
+	frame_iterator = 0;
+	vpx_codec_decode(&decoder, (const uint8_t *)inputBuffer, (unsigned int)inputBufferBytes, 0, 0);
+	return MKV_SUCCESS;
+}
+
+void MKVVP8::Flush()
+{
+		flushing=true;
+}
+
+int MKVVP8::GetPicture(void **data, void **decoder_data, uint64_t *timestamp)
+{
+	if (flushing)
+	{
+		vpx_codec_stream_info_t stream_info;
+		stream_info.sz = sizeof(stream_info);
+		if (vpx_codec_get_stream_info(&decoder, &stream_info) == VPX_CODEC_OK)
+		{
+			if (!stream_info.is_kf)
+				return MKV_FAILURE;
+			flushing=false;
+		}
+	}
+
+	vpx_image_t *image = vpx_codec_get_frame(&decoder, &frame_iterator);
+	if (image)
+	{
+		planes.y.baseAddr = image->planes[0];
+		planes.y.rowBytes = image->stride[0];
+		planes.u.baseAddr = image->planes[1];
+		planes.u.rowBytes = image->stride[1];
+		planes.v.baseAddr = image->planes[2];
+		planes.v.rowBytes = image->stride[2];
+		*data = &planes;
+		*decoder_data = 0;
+
+		return MKV_SUCCESS;
+	}
+
+	return MKV_FAILURE;
+}
+
+void MKVVP8::FreePicture(void *data, void *decoder_data)
+{
+}
+
+void MKVVP8::HurryUp(int state)
+{
+}
+
+void MKVVP8::Close()
+{
+	vpx_codec_destroy(&decoder);
+	delete this;
+}
+
+#define CBCLASS MKVVP8
+START_DISPATCH;
+CB(GET_OUTPUT_PROPERTIES, GetOutputProperties)
+CB(DECODE_BLOCK, DecodeBlock)
+VCB(FLUSH, Flush)
+CB(GET_PICTURE, GetPicture)
+VCB(FREE_PICTURE, FreePicture)
+VCB(HURRY_UP, HurryUp)
+VCB(CLOSE, Close)
+END_DISPATCH;
+#undef CBCLASS
+