Bugfix for DVR-MS files

Moved all statics to a struct. Solves the issues on windows with the
DVR-MS files, which were due to the static parsebuf.

src/asf_constants.h

@@ -29,3 +29,66 @@
 
 // 10.13 - Undocumented DVR-MS properties
 #define DVRMS_PTS "\x2A\xC0\x3C\xFD\xDB\x06\xFA\x4C\x80\x1C\x72\x12\xD3\x87\x45\xE4"
+
+typedef struct {
+	int VideoStreamNumber;
+	int AudioStreamNumber;
+	int CaptionStreamNumber;
+	int CaptionStreamStyle; // 1 = NTSC, 2 = ATSC
+	int DecodeStreamNumber; // The stream that is chosen to be decoded
+	int DecodeStreamPTS; // This will be used for the next returned block
+	int currDecodeStreamPTS; // Time of the data returned by the function
+	int prevDecodeStreamPTS; // Previous time
+	int VideoStreamMS; // See ableve, just for video
+	int currVideoStreamMS;
+	int prevVideoStreamMS;
+	int VideoJump; // Remember a jump in the video timeline
+} asf_data_stream_properties;
+
+#define STREAMNUM  10
+#define PAYEXTNUM 10
+
+typedef struct {
+	// Generic buffer to hold data
+	unsigned char *parsebuf;
+	long parsebufsize;
+	// Header Object variables
+	int64_t HeaderObjectSize;
+	int64_t FileSize;
+	uint32_t PacketSize;
+	// Stream Properties Object variables
+	asf_data_stream_properties StreamProperties;
+	// Extended Stream Properties  - for DVR-MS presentation timestamp
+	// Store the Payload Extension System Data Size.  First index holds the
+	// stream number and the second index holds the Extension System entry.
+	// I.e. PayloadExtSize[1][2] is the third Payload Extension System
+	// entry for stream 1. (The streams are numbered starting from 1)
+	// FIXME: What happens if we have more than 9 streams with more than
+	// 10 entries.
+	int PayloadExtSize[STREAMNUM][PAYEXTNUM];
+	int PayloadExtPTSEntry[STREAMNUM];
+	// Data object Header variables
+	int64_t DataObjectSize;
+	uint32_t TotalDataPackets;
+	int VideoClosedCaptioningFlag;
+	// Payload data
+	int PayloadLType; // ASF - Payload Length Type. <>0 for multiple payloads
+	uint32_t PayloadLength; // ASF - Payload Length
+	int NumberOfPayloads; // ASF - Number of payloads.
+	int payloadcur; // local
+	int PayloadStreamNumber; // ASF
+	int KeyFrame; // ASF
+	uint32_t PayloadMediaNumber; // ASF
+	// Data Object Loop
+	uint32_t datapacketcur; // Current packet number
+	int64_t dobjectread; // Bytes read in Data Object
+	// Payload parsing information
+	int MultiplePayloads; // ASF
+	int PacketLType; // ASF
+    int ReplicatedLType; // ASF
+    int OffsetMediaLType; // ASF
+    int MediaNumberLType; // ASF
+    int StreamNumberLType; // ASF
+	uint32_t PacketLength;
+	uint32_t PaddingLength;
+} asf_data;