From 02fd314a0b426d6d445e2c9b167681ade6b0c1d2 Mon Sep 17 00:00:00 2001
From: Nick Peskett <rockbox@peskett.co.uk>
Date: Fri, 16 Dec 2011 10:09:41 +0000
Subject: FS #12419 : Support for embedded cuesheets.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31321 a1c6a512-1295-4272-9138-f99709370657
---
 apps/metadata/id3tags.c | 34 ++++++++++++++++++++++++++++++++++
 apps/metadata/vorbis.c  | 20 +++++++++++++++++---
 2 files changed, 51 insertions(+), 3 deletions(-)

(limited to 'apps/metadata')

diff --git a/apps/metadata/id3tags.c b/apps/metadata/id3tags.c
index dcf71f71bf..e9b59e012a 100644
--- a/apps/metadata/id3tags.c
+++ b/apps/metadata/id3tags.c
@@ -995,6 +995,40 @@ void setid3v2title(int fd, struct mp3entry *entry)
                     if(bytesread >= buffersize - bufferpos)
                         bytesread = buffersize - bufferpos - 1;
 
+                    if ( /* Is it an embedded cuesheet? */
+                       (tr->tag_length == 4 && !memcmp(header, "TXXX", 4)) &&
+                       (bytesread >= 14 && !strncmp(utf8buf, "CUESHEET", 8))
+                    ) {
+                        unsigned char char_enc = 0;
+                        /* 0CUESHEET0 = 10 bytes */
+                        unsigned char cuesheet_offset = 10;
+                        switch (tag[0]) {
+                            case 0x00:
+                                char_enc = CHAR_ENC_ISO_8859_1;
+                                break;
+                            case 0x01:
+                                char_enc = CHAR_ENC_UTF_16_LE;
+                                cuesheet_offset += cuesheet_offset+1;
+                                break;
+                            case 0x02:
+                                char_enc = CHAR_ENC_UTF_16_BE;
+                                cuesheet_offset += cuesheet_offset+1;
+                                break;
+                            case 0x03:
+                                char_enc = CHAR_ENC_UTF_8;
+                                break;
+                        }
+                        if (char_enc > 0) {
+                            entry->embed_cuesheet.present = true;
+                            entry->embed_cuesheet.pos = lseek(fd, 0, SEEK_CUR)
+                                - framelen + cuesheet_offset;
+                            entry->embed_cuesheet.size = totframelen
+                                - cuesheet_offset;
+                            entry->embed_cuesheet.encoding = char_enc;
+                        }
+                        break;
+                    }
+
                     for (j = 0; j < bytesread; j++)
                         tag[j] = utf8buf[j];
 
diff --git a/apps/metadata/vorbis.c b/apps/metadata/vorbis.c
index f6d3af1cef..29848daa19 100644
--- a/apps/metadata/vorbis.c
+++ b/apps/metadata/vorbis.c
@@ -341,15 +341,29 @@ long read_vorbis_tags(int fd, struct mp3entry *id3,
         }
 
         len -= read_len;
+        read_len = file_read_string(&file, id3->path, sizeof(id3->path), -1, len);
 
-        if (file_read_string(&file, id3->path, sizeof(id3->path), -1, len) < 0)
+        if (read_len < 0)
         {
             return 0;
         }
 
         logf("Vorbis comment %d: %s=%s", i, name, id3->path);
-        len = parse_tag(name, id3->path, id3, buf, buf_remaining, 
-            TAGTYPE_VORBIS);
+
+        /* Is it an embedded cuesheet? */
+        if (!strcasecmp(name, "CUESHEET"))
+        {
+            id3->embed_cuesheet.present = true;
+            id3->embed_cuesheet.pos = lseek(file.fd, 0, SEEK_CUR) - read_len;
+            id3->embed_cuesheet.size = len;
+            id3->embed_cuesheet.encoding = CHAR_ENC_UTF_8;
+        }
+        else
+        {
+            len = parse_tag(name, id3->path, id3, buf, buf_remaining,
+                TAGTYPE_VORBIS);
+        }
+
         buf += len;
         buf_remaining -= len;
     }
-- 
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