#define BLOCK_FLAG_HEADER 0x0020
/** This is the last block of the frame */
#define BLOCK_FLAG_END_OF_FRAME 0x0040
-/** No keyframes present */
+/** This is not a key frame for bitrate shaping */
#define BLOCK_FLAG_NO_KEYFRAME 0x0080
+/** This is the last block of the GOP */
+#define BLOCK_FLAG_END_OF_GOP 0x0100
+/** This block contains a clock reference */
+#define BLOCK_FLAG_CLOCK 0x0200
+/** This block is scrambled */
+#define BLOCK_FLAG_SCRAMBLED 0x0400
#define BLOCK_FLAG_PRIVATE_MASK 0xffff0000
#define BLOCK_FLAG_PRIVATE_SHIFT 16