Changeset 220 for libmpc/branches/r2d/libmpcenc/encode_sv7.c

Timestamp:

02/17/07 18:49:10 (18 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/libmpcenc/encode_sv7.c (modified) (7 diffs)

libmpc/branches/r2d/libmpcenc/encode_sv7.c

@@ -60 +60 @@
 
 // writes replay gain info
-static void writeGainInfo ( mpc_encoder_t * e,
-                                                        unsigned short t_gain,
-                                                        unsigned short t_peak,
-                                                        unsigned short a_gain,
-                                                        unsigned short a_peak)
+void writeGainInfo ( mpc_encoder_t * e,
+                                         unsigned short t_gain,
+                                         unsigned short t_peak,
+                                         unsigned short a_gain,
+                                         unsigned short a_peak)
 {
         writeBits ( e, 1,  8 ); // version
@@ -80 +80 @@
                   const unsigned int  SamplesCount,
                   const unsigned int  SampleFreq,
-                                  const unsigned int  ChannelCount,
-                                  unsigned short t_gain,
-                                  unsigned short t_peak,
-                                  unsigned short a_gain,
-                                  unsigned short a_peak)
+                                  const unsigned int  ChannelCount)
 {
         unsigned char tmp[10];
-        int i, len = encodeSize(SamplesCount, (char *)tmp, MPC_FALSE);
-
-        len = encodeSize(len + 3, (char *)tmp, MPC_TRUE);
-        writeBits ( e, tmp[0]  , 8 );
+        int i, len;
 
     writeBits ( e, 8,  8 );    // StreamVersion
@@ -96 +89 @@
         len = encodeSize(SamplesCount, (char *)tmp, MPC_FALSE);
         for( i = 0; i < len; i++) // nb of samples
-                writeBits ( e, tmp[i]  , 8 );
+                writeBits ( e, tmp[i], 8 );
+        writeBits ( e, 0, 8 ); // nb of samples to skip at beginning
+        writeBits ( e, 0, 8 ); // nb of samples to skip at end
 
         switch ( SampleFreq ) {
@@ -107 +102 @@
         }
 
+        writeBits ( e, MaxBand - 1  ,  5 );    // Bandwidth
         writeBits ( e, ChannelCount - 1  ,  4 );    // Channels
-        writeBits ( e, MaxBand - 1  ,  5 );    // Bandwidth
         writeBits ( e, MS_on        ,  1 );    // MS-Coding Flag
         writeBits ( e, FRAMES_PER_BLOCK_PWR >> 1,  3 );    // frames per block (log4 unit)
-
-        writeGainInfo(e, t_gain, t_peak, a_gain, a_peak);
 }
 
@@ -121 +114 @@
                                                 const int version_major,
                                                 const int version_minor,
-                                                const int version_implement,
                                                 const int version_build )
 {
         writeBits ( e, (mpc_uint32_t)(profile * 8 + .5),  7 );
         writeBits ( e, PNS_on,  1 );
-        writeBits ( e, version_major,  4 );
+        writeBits ( e, version_major,  8 );
         writeBits ( e, version_minor,  8 );
-        writeBits ( e, version_implement,  4 );
         writeBits ( e, version_build,  8 );
 }
@@ -269 +260 @@
         for ( n = 0; n < MaxBand; n++ ) {
                 int Res = e->Res_L[n];
-                const unsigned int * q = e->Q[n].L;
+                const int * q = e->Q[n].L;
                 static const unsigned int thres[] = {0, 0, 3, 7, 9, 1, 3, 4, 8};
                 static const int HuffQ2_var[5*5*5] =
@@ -356 +347 @@
                 }
                 e->block_cnt++;
-                writeBlock(e, "AD", MPC_FALSE, 0);
+                writeBlock(e, "AP", MPC_FALSE, 0);
         }
 }