+ The information is stored as follows:
+
+ struct info {
+ u32 length; // Length of this frame
+ u32 offset_low; // Offset in the file of the
+ u32 offset_high; // start of this frame
+ u32 mask1; // Bits 0-2 are the type mask:
+ // 1=I, 2=P, 4=B
+ // 0=End of Program Index, other fields
+ // are invalid.
+ u32 pts; // The PTS of the frame
+ u32 mask2; // Bit 0 is bit 32 of the pts.
+ };
+ u32 table_ptr;
+ struct info index[400];
+
+ The table_ptr is the encoder memory address in the table were
+ *new* entries will be written. Note that this is a ringbuffer,
+ so the table_ptr will wraparound.