Patch #5157 by Rainer Sinsch - SID codec

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10237 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 53 insertions, 0 deletions

diff --git a/apps/metadata.c b/apps/metadata.c
index bdf65b2..546b97d 100644
--- a/apps/metadata.c
+++ b/apps/metadata.c
@@ -81,6 +81,7 @@ static const struct format_list formats[] =
     { AFMT_SHN,           "shn"  },
     { AFMT_AIFF,          "aif"  },
     { AFMT_AIFF,          "aiff" },
+    { AFMT_SID,           "sid"  },
 #endif
 };
 
@@ -1341,6 +1342,50 @@ static bool get_aiff_metadata(int fd, struct mp3entry* id3)
     return true;
 }
 
+static bool get_sid_metadata(int fd, struct mp3entry* id3)
+{    
+    /* Use the trackname part of the id3 structure as a temporary buffer */
+    unsigned char* buf = id3->path;    
+    int read_bytes;
+    char *p;
+    
+
+    if ((lseek(fd, 0, SEEK_SET) < 0) 
+        || ((read_bytes = read(fd, buf, sizeof(id3->path))) < 44))
+    {
+        return false;
+    }
+    
+    if ((memcmp(buf, "PSID",4) != 0))        
+    {
+        return false;
+    }
+
+    p = id3->id3v2buf;
+
+    /* Copy Title */
+    strcpy(p, &buf[0x16]);
+    id3->title = p;
+    p += strlen(p)+1;
+
+    /* Copy Artist */
+    strcpy(p, &buf[0x36]);
+    id3->artist = p;
+    p += strlen(p)+1;
+
+    id3->bitrate = 706;
+    id3->frequency = 44100;
+    /* New idea as posted by Marco Alanen (ravon):
+     * Set the songlength in seconds to the number of subsongs
+     * so every second represents a subsong.
+     * Users can then skip the current subsong by seeking */
+    id3->length = (buf[0xf]-1)*1000;
+    id3->vbr = false;
+    id3->filesize = filesize(fd);
+
+    return true;
+}
+
 /* Simple file type probing by looking at the filename extension. */
 unsigned int probe_file_format(const char *filename)
 {
@@ -1546,6 +1591,14 @@ bool get_metadata(struct track_info* track, int fd, const char* trackname,
         }
         /* TODO: read the id3v2 header if it exists */
         break;
+
+    case AFMT_SID:
+        if (!get_sid_metadata(fd, &(track->id3)))
+        {
+            return false;
+        }
+        break;
+
 #endif /* CONFIG_CODEC == SWCODEC */
 
     case AFMT_AIFF: