Changeset 220 for libmpc/branches/r2d/mpcgain/mpcgain.c

Timestamp:

02/17/07 18:49:10 (17 years ago)

Author:

r2d

Message:

• updated according to the spec
• now reads / write beginning / end silences, but decoder does not care.
• please test !

File:

• libmpc/branches/r2d/mpcgain/mpcgain.c (modified) (5 diffs)

libmpc/branches/r2d/mpcgain/mpcgain.c

@@ -41 +41 @@
 #include "../libmpcdec/huffman.h"
 #include "../libmpcdec/mpc_bits_reader.h"
-
-// crc32.c
-unsigned long crc32(unsigned char *buf, int len);
 
 static void usage(const char *exename)
@@ -124 +121 @@
                 mpc_block b;
                 mpc_uint64_t size;
-                mpc_uint32_t crc_pos, crc;
                 FILE * file;
 
@@ -140 +136 @@
                 size = mpc_bits_get_block(&r, &b);
 
-                while( memcmp(b.key, "SI", 2) != 0 ) {
-                        header_pos[j] += b.size;
+                while( memcmp(b.key, "RG", 2) != 0 ) {
+                        header_pos[j] += b.size + size;
                         fseek(file, header_pos[j], SEEK_SET);
                         fread(buffer, 1, 16, file);
@@ -150 +146 @@
 
                 header_pos[j] += size;
-
-                fread(buffer + 16, 1, 48, file);
-
-                crc_pos = r.buff - buffer + (8 > r.count); // save position of CRC
-                r.buff += 4; // skip CRC
-                mpc_bits_get_size(&r, &size);
-                size += 4 + crc_pos;
 
                 buffer[size] = 1; // replaygain version
@@ -168 +157 @@
                 buffer[size + 8] = album_peak & 0xFF;
 
-                crc = crc32(buffer + crc_pos + 4, (int)b.size - 4);
-                buffer[crc_pos] = crc >> 24;
-                buffer[crc_pos + 1] = (crc >> 16) & 0xFF;
-                buffer[crc_pos + 2] = (crc >> 8) & 0xFF;
-                buffer[crc_pos + 3] = crc & 0xFF;
-
                 fseek(file, header_pos[j], SEEK_SET);
-                fwrite(buffer + crc_pos, 1, b.size, file);
+                fwrite(buffer + size, 1, b.size, file);
                 fclose(file);
         }