Added support for DVD and ReplayTV CC.

modules/codec/cc.h

@@ -31,6 +31,9 @@ typedef struct
     /* Which channel are present */
     vlc_bool_t pb_present[4];
 
+    /* */
+    vlc_bool_t b_reorder;
+
     /* CC data per field
      *  byte[x+0]: field (0/1)
      *  byte[x+1]: cc data 1
@@ -59,6 +62,7 @@ static inline void cc_Init( cc_data_t *c )
     for( i = 0; i < 4; i++ )
         c-> pb_present[i] = VLC_FALSE; 
     c->i_data = 0;
+    c->b_reorder = VLC_FALSE;
 }
 static inline void cc_Exit( cc_data_t *c )
 {
@@ -71,11 +75,19 @@ static inline void cc_Flush( cc_data_t *c )
 static inline void cc_Extract( cc_data_t *c, const uint8_t *p_src, int i_src )
 {
     static const uint8_t p_cc_ga94[4] = { 0x47, 0x41, 0x39, 0x34 };
+    static const uint8_t p_cc_dvd[4] = { 0x43, 0x43, 0x01, 0xf8 };
+    static const uint8_t p_cc_replaytv4a[2] = { 0xbb, 0x02 };
+    static const uint8_t p_cc_replaytv4b[2] = { 0xcc, 0x02 };
+    static const uint8_t p_cc_replaytv5a[2] = { 0x99, 0x02 };
+    static const uint8_t p_cc_replaytv5b[2] = { 0xaa, 0x02 };
     //static const uint8_t p_afd_start[4] = { 0x44, 0x54, 0x47, 0x31 };
 
     if( i_src < 4 )
         return;
 
+    if( !memcmp( p_cc_ga94, p_src, 4 ) && i_src >= 5+1+1+1 && p_src[4] == 0x03 )
+    {
+        /* Extract CC from DVB/ATSC TS */
         /* cc_data()
          *          u1 reserved(1)
          *          u1 process_cc_data_flag
@@ -96,9 +108,6 @@ static inline void cc_Extract( cc_data_t *c, const uint8_t *p_src, int i_src )
          *  0x00: field 1
          *  0x01: field 2
          */
-    if( !memcmp( p_cc_ga94, p_src, 4 ) && i_src >= 5+1+1+1 && p_src[4] == 0x03 )
-    {
-        /* Extract CC from DVB/ATSC TS */
         const uint8_t *cc = &p_src[5];
         const int i_count_cc = cc[0]&0x1f;
         int i;
@@ -132,9 +141,75 @@ static inline void cc_Extract( cc_data_t *c, const uint8_t *p_src, int i_src )
             c->p_data[c->i_data++] = cc[1];
             c->p_data[c->i_data++] = cc[2];
         }
+        c->b_reorder = VLC_TRUE;
+    }
+    else if( !memcmp( p_cc_dvd, p_src, 4 ) && i_src > 4+1 )
+    {
+        /* DVD CC */
+        const int b_truncate = p_src[4] & 0x01;
+        const int i_field_first = (p_src[4] & 0x80) ? 0 : 1;
+        const int i_count_cc2 = (p_src[4] >> 1) & 0xf;
+        const uint8_t *cc = &p_src[5];
+        int i;
+
+        if( i_src < 4+1+6*i_count_cc2 - ( b_truncate ? 3 : 0) )
+            return;
+        for( i = 0; i < i_count_cc2; i++ )
+        {
+            int j;
+            for( j = 0; j < 2; j++, cc += 3 )
+            {
+                const int i_field = j == i_field_first ? 0 : 1;
+                int i_channel;
+
+                if( b_truncate && i == i_count_cc2 - 1 && j == 1 )
+                    break;
+                if( cc[0] != 0xff && cc[0] != 0xfe )
+                    continue;
+                if( c->i_data + 3 > CC_MAX_DATA_SIZE )
+                    continue;
+
+                i_channel = cc_Channel( i_field, &cc[1] );
+                if( i_channel >= 0 && i_channel < 4 )
+                    c->pb_present[i_channel] = VLC_TRUE;
+                c->p_data[c->i_data++] = i_field;
+                c->p_data[c->i_data++] = cc[1];
+                c->p_data[c->i_data++] = cc[2];
+            }
+        }
+        c->b_reorder = VLC_FALSE;
+    }
+    else if( i_src >= 2+2 + 2+2 &&
+             ( ( !memcmp( p_cc_replaytv4a, &p_src[0], 2 ) && !memcmp( p_cc_replaytv4b, &p_src[4], 2 ) ) ||
+               ( !memcmp( p_cc_replaytv5a, &p_src[0], 2 ) && !memcmp( p_cc_replaytv5b, &p_src[4], 2 ) ) ) )
+    {
+        /* ReplayTV CC */
+        const uint8_t *cc = &p_src[0];
+        int i;
+        if( c->i_data + 2*3 > CC_MAX_DATA_SIZE )
+            return;
+
+        for( i = 0; i < 2; i++, cc += 4 )
+        {
+            const int i_field = i == 0 ? 1 : 0;
+            int i_channel = cc_Channel( i_field, &cc[2] );
+            if( i_channel >= 0 && i_channel < 4 )
+                c->pb_present[i_channel] = VLC_TRUE;
+            c->p_data[c->i_data++] = i_field;
+            c->p_data[c->i_data++] = cc[2];
+            c->p_data[c->i_data++] = cc[3];
+        }
+        c->b_reorder = VLC_FALSE;
     }
     else
     {
+#if 0
+#define V(x) ( ( x < 0x20 || x >= 0x7f ) ? '?' : x )
+        fprintf( stderr, "-------------- unknown user data %2.2x %2.2x %2.2x %2.2x %c%c%c%c\n",
+                 p_src[0], p_src[1], p_src[2], p_src[3],
+                 V(p_src[0]), V(p_src[1]), V(p_src[2]), V(p_src[3]) );
+#undef V
+#endif
         /* TODO DVD CC, ... */
     }
 }