Added ID3 tag 'genre': %ig

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2950 a1c6a512-1295-4272-9138-f99709370657

apps/wps-display.c

@@ -63,6 +63,33 @@ static int ff_rewind_count;
 bool wps_time_countup = true;
 static bool wps_loaded = false;
 
+static const char* const genres[] = {
+    "Blues", "Classic Rock", "Country", "Dance", "Disco", "Funk", "Grunge",
+    "Hip-Hop", "Jazz", "Metal", "New Age", "Oldies", "Other", "Pop", "R&B",
+    "Rap", "Reggae", "Rock", "Techno", "Industrial", "Alternative", "Ska",
+    "Death Metal", "Pranks", "Soundtrack", "Euro-Techno", "Ambient", "Trip-Hop",
+    "Vocal", "Jazz+Funk", "Fusion", "Trance", "Classical", "Instrumental",
+    "Acid", "House", "Game", "Sound Clip", "Gospel", "Noise", "AlternRock",
+    "Bass", "Soul", "Punk", "Space", "Meditative", "Instrumental Pop",
+    "Instrumental Rock", "Ethnic", "Gothic", "Darkwave", "Techno-Industrial",
+    "Electronic", "Pop-Folk", "Eurodance", "Dream", "Southern Rock", "Comedy",
+    "Cult", "Gangsta", "Top 40", "Christian Rap", "Pop/Funk", "Jungle",
+    "Native American", "Cabaret", "New Wave", "Psychadelic", "Rave",
+    "Showtunes", "Trailer", "Lo-Fi", "Tribal", "Acid Punk", "Acid Jazz",
+    "Polka", "Retro", "Musical", "Rock & Roll", "Hard Rock",
+
+    /* winamp extensions */
+    "Folk", "Folk-Rock", "National Folk", "Swing", "Fast Fusion", "Bebob",
+    "Latin", "Revival", "Celtic", "Bluegrass", "Avantgarde", "Gothic Rock",
+    "Progressive Rock", "Psychedelic Rock", "Symphonic Rock", "Slow Rock",
+    "Big Band", "Chorus", "Easy Listening", "Acoustic", "Humour", "Speech",
+    "Chanson", "Opera", "Chamber Music", "Sonata", "Symphony", "Booty Bass",
+    "Primus", "Porn Groove", "Satire", "Slow Jam", "Club", "Tango", "Samba",
+    "Folklore", "Ballad", "Power Ballad", "Rhythmic Soul", "Freestyle",
+    "Duet", "Punk Rock", "Drum Solo", "A capella", "Euro-House", "Dance Hall"
+};
+
+
 /* Set format string to use for WPS, splitting it into lines */
 static void wps_format(char* fmt)
 {
@@ -260,6 +287,13 @@ static char* get_tag(struct mp3entry* id3,
                     else
                         return NULL;
                     break;
+
+                case 'g':  /* genre */
+                    if (id3->genre < sizeof(genres)/sizeof(char*))
+                        return (char*)genres[id3->genre];
+                    else
+                        return NULL;
+                    break;
             }
             break;
 

firmware/id3.c

@@ -156,7 +156,7 @@ static int unicode_munge(char** string, int *len) {
 static bool setid3v1title(int fd, struct mp3entry *entry) 
 {
     unsigned char buffer[128];
-    static int offsets[] = {3, 33, 63, 93, 125};
+    static char offsets[] = {3, 33, 63, 93, 125, 127};
     int i, j;
 
     if (-1 == lseek(fd, -128, SEEK_END))
@@ -168,7 +168,7 @@ static bool setid3v1title(int fd, struct mp3entry *entry)
     if (strncmp(buffer, "TAG", 3))
         return false;
 
-    for (i=0;i<5;i++) {
+    for (i=0; i < (int)sizeof offsets; i++) {
         char* ptr = buffer + offsets[i];
         
         if (i<3) {
@@ -204,6 +204,11 @@ static bool setid3v1title(int fd, struct mp3entry *entry)
                 if (*ptr == 0)
                     entry->tracknum = ptr[1];
                 break;
+
+            case 5:
+                /* genre */
+                entry->genre = ptr[0];
+                break;
         }
     }
 
@@ -339,6 +344,16 @@ static void setid3v2title(int fd, struct mp3entry *entry)
             bufferpos += bytesread + 1;
             size -= bytesread;
         }
+        else if(!strncmp(header, "TCON", 4)) {
+            char* ptr = buffer + bufferpos;
+            bytesread = read(fd, ptr, framelen);
+            if (ptr[1] == '(' && ptr[2] != '(')
+                entry->genre = atoi(ptr+2);
+            else
+                entry->genre = 0xff;
+            bufferpos += bytesread + 1;
+            size -= bytesread;
+        }
         else {
             /* Unknown frame, skip it using the total size in case
                it was truncated */

firmware/id3.h

@@ -30,6 +30,7 @@ struct mp3entry {
     int version;
     int layer;
     int year;
+    unsigned char genre;
     unsigned int bitrate;
     unsigned int frequency;
     unsigned int id3v2len;