Changeset 379 for dsfilters/demux_mpc/src/bits.h

Timestamp:

01/05/08 11:40:24 (16 years ago)

Author:

radscorpion

Message:

SV7 demuxing and decoding works.
However there are strange artifacts when seeking in SV7 files.. - TODO

File:

• dsfilters/demux_mpc/src/bits.h (modified) (1 diff)

dsfilters/demux_mpc/src/bits.h

@@ -117 +117 @@
                 bitbuf = (tmp[0] << 24) | (tmp[1] << 16) | (tmp[2] << 8) | (tmp[3]);
         }
+
+        inline void PutBits(int32 val, int32 num) {
+                bits += num;
+                if (num < 32) val &= (1<<num)-1;
+                if (bits > 32) {
+                        bits -= 32;
+                        bitbuf |= val >> (bits);
+                        *buf++ = ( bitbuf >> 24 ) & 0xff;
+                        *buf++ = ( bitbuf >> 16 ) & 0xff;
+                        *buf++ = ( bitbuf >>  8 ) & 0xff;
+                        *buf++ = ( bitbuf >>  0 ) & 0xff;
+                        bitbuf = val << (32 - bits);
+                } else
+                bitbuf |= val << (32 - bits);
+        }
+        inline void WriteBits() { 
+                while (bits >= 8) { 
+                        *buf++ = (bitbuf >> 24) & 0xff; 
+                        bitbuf <<= 8;
+                        bits -= 8; 
+                } 
+        }
+        inline void Put_ByteAlign_Zero() { int32 bl=(bits)&0x07; if (bl<8) { PutBits(0,8-bl); } WriteBits(); }
+        inline void Put_ByteAlign_One() { int32 bl=(bits)&0x07; if (bl<8) {     PutBits(0xffffff,8-bl); } WriteBits(); }
+
 };