From b9a71b305b98a87f747dc1e0cc91324b73693fd1 Mon Sep 17 00:00:00 2001
From: Adam Boot <rotator@gmail.com>
Date: Sat, 3 Mar 2007 06:08:28 +0000
Subject: Add get_metadata() and year & comment tag support for SPC.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12563 a1c6a512-1295-4272-9138-f99709370657
---
 apps/codecs/spc.c |  27 ++++++++++++--
 apps/metadata.c   | 108 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 129 insertions(+), 6 deletions(-)

diff --git a/apps/codecs/spc.c b/apps/codecs/spc.c
index 12b236c53d..1cf20098fa 100644
--- a/apps/codecs/spc.c
+++ b/apps/codecs/spc.c
@@ -671,14 +671,31 @@ static int LoadID666(unsigned char *buf) {
         ID666.emulator=*ib;
         ib++;    
     } else {
-        int year, month, day;
         unsigned long tmp;
         char buf[64];
         
         DEBUGF("text tag detected\n");
-    
-        year=month=day=0;
-        ib+=11;
+        
+        memcpy(buf, ib, 2);
+        buf[2] = 0; 
+        tmp = 0;
+        for (i=0;i<2 && buf[i]>='0' && buf[i]<='9';i++) tmp=tmp*10+buf[i]-'0';
+        ID666.month = tmp;
+        ib+=3;
+        
+        memcpy(buf, ib, 2);
+        buf[2] = 0; 
+        tmp = 0;
+        for (i=0;i<2 && buf[i]>='0' && buf[i]<='9';i++) tmp=tmp*10+buf[i]-'0';
+        ID666.day = tmp;
+        ib+=3;
+        
+        memcpy(buf, ib, 4);
+        buf[4] = 0; 
+        tmp = 0;
+        for (i=0;i<4 && buf[i]>='0' && buf[i]<='9';i++) tmp=tmp*10+buf[i]-'0';
+        ID666.year = tmp;
+        ib+=5;
     
         memcpy(buf, ib, 3);
         buf[3] = 0; 
@@ -861,6 +878,8 @@ enum codec_status codec_main(void)
             ci->id3->title = ID666.song;
             ci->id3->album = ID666.game;
             ci->id3->artist = ID666.artist;
+            ci->id3->year = ID666.year;
+            ci->id3->comment = ID666.comments;
 
             reset_profile_timers();
         }
diff --git a/apps/metadata.c b/apps/metadata.c
index 84ee37c2fe..42ae435aea 100644
--- a/apps/metadata.c
+++ b/apps/metadata.c
@@ -33,6 +33,7 @@
 #include "system.h"
 #include "cuesheet.h"
 #include "structec.h"
+#include "settings.h"
 
 enum tagtype { TAGTYPE_APE = 1, TAGTYPE_VORBIS };
 
@@ -1858,6 +1859,104 @@ static bool get_adx_metadata(int fd, struct mp3entry* id3)
     return true;    
 }
 
+static bool get_spc_metadata(int fd, struct mp3entry* id3)
+{
+    /* Use the trackname part of the id3 structure as a temporary buffer */
+    unsigned char * buf = (unsigned char *)id3->path;
+    int read_bytes;
+    char * p;
+    
+    unsigned long length;
+    unsigned long fade;
+    bool isbinary = true;
+    int i;
+    
+    /* try to get the ID666 tag */
+    if ((lseek(fd, 0x2e, SEEK_SET) < 0)
+        || ((read_bytes = read(fd, buf, 0xD2)) < 0xD2))
+    {
+        DEBUGF("lseek or read failed\n");
+        return false;
+    }
+
+    p = id3->id3v2buf;
+    
+    id3->title = p;
+    buf[31] = 0;
+    p = iso_decode(buf, p, 0, 32);
+    buf += 32;
+
+    id3->album = p;
+    buf[31] = 0;
+    p = iso_decode(buf, p, 0, 32);
+    buf += 48;
+    
+    id3->comment = p;
+    buf[31] = 0;
+    p = iso_decode(buf, p, 0, 32);
+    buf += 32;
+    
+    /* Date check */
+    if(buf[2] == '/' && buf[5] == '/')
+        isbinary = false;
+    
+    /* Reserved bytes check */
+    if(buf[0xD2 - 0x2E - 112] >= '0' &&
+       buf[0xD2 - 0x2E - 112] <= '9' &&
+       buf[0xD3 - 0x2E - 112] == 0x00)
+        isbinary = false;
+    
+    /* is length & fade only digits? */
+    for (i=0;i<8 && ( 
+        (buf[0xA9 - 0x2E - 112+i]>='0'&&buf[0xA9 - 0x2E - 112+i]<='9') ||
+        buf[0xA9 - 0x2E - 112+i]=='\0');
+        i++);
+    if (i==8) isbinary = false;
+    
+    if(isbinary) {
+        unsigned char * tbuf = buf;
+        
+        id3->year = tbuf[0] | (tbuf[1]<<8);
+        buf += 11;
+        
+        length = (buf[0] | (buf[1]<<8) | (buf[2]<<16)) * 1000;
+        buf += 3;
+        
+        fade = (buf[0] | (buf[1]<<8) | (buf[2]<<16) | (buf[3]<<24));
+        buf += 4;
+    } else {
+        char tbuf[6];
+        
+        buf += 6;
+        buf[4] = 0;
+        id3->year = atoi(buf);
+        buf += 5;
+        
+        memcpy(tbuf, buf, 3);
+        tbuf[3] = 0;
+        length = atoi(tbuf) * 1000;
+        buf += 3;
+        
+        memcpy(tbuf, buf, 5);
+        tbuf[5] = 0;
+        fade = atoi(tbuf);
+        buf += 5;
+    }
+    
+    id3->artist = p;
+    buf[31] = 0;
+    p = iso_decode(buf, p, 0, 32);
+    
+    if (global_settings.repeat_mode!=REPEAT_ONE && length==0) {
+        length=3*60*1000; /* 3 minutes */
+        fade=5*1000; /* 5 seconds */
+    }
+    
+    id3->length = length+fade;
+
+    return true;
+}
+
 static bool get_aiff_metadata(int fd, struct mp3entry* id3)
 {
     /* Use the trackname part of the id3 structure as a temporary buffer */
@@ -2173,6 +2272,11 @@ bool get_metadata(struct track_info* track, int fd, const char* trackname,
         }
         break;
     case AFMT_SPC:
+        if(!get_spc_metadata(fd, &(track->id3)))
+        {
+            DEBUGF("get_spc_metadata error\n");
+        }
+
         track->id3.filesize = filesize(fd);
         track->id3.genre_string = id3_get_num_genre(36);
         break;
@@ -2182,7 +2286,7 @@ bool get_metadata(struct track_info* track, int fd, const char* trackname,
             DEBUGF("get_adx_metadata error\n");
             return false;
         }
-
+        
         break;
     case AFMT_NSF:
         buf = (unsigned char *)track->id3.path;
@@ -2194,7 +2298,7 @@ bool get_metadata(struct track_info* track, int fd, const char* trackname,
         track->id3.vbr = false;
         track->id3.filesize = filesize(fd);
         if (memcmp(buf,"NESM",4) && memcmp(buf,"NSFE",4)) return false;
-    break;
+        break;
 
     case AFMT_AIFF:
         if (!get_aiff_metadata(fd, &(track->id3)))
-- 
cgit v1.2.3