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Add support for ID3v1 metadta tags in Real Media container.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23339 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Mohamed Tarek 2009-10-24 23:53:01 +00:00
parent c9dd93e286
commit 027e7634bf
1 changed files with 57 additions and 7 deletions
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56
apps/metadata/rm.c
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@ -38,6 +38,9 @@
#define DEBUGF(...)
#endif
#define ID3V1_OFFSET -128
#define METADATA_FOOTER_OFFSET -140
static inline void print_cook_extradata(RMContext *rmctx) {
DEBUGF(" cook_version = 0x%08lx\n", rm_get_uint32be(rmctx->codec_extradata));
@ -85,6 +88,52 @@ static char* fourcc2str(uint32_t f)
}
#endif
static inline int real_read_id3v1_tags(int fd, struct mp3entry *id3)
{
/* ID3v1 Standard : http://id3.org/id3v1.html */
char temp[31];
char *buf = &id3->id3v1buf[0][0];
long buf_remaining = sizeof(id3->id3v1buf);
lseek(fd, ID3V1_OFFSET, SEEK_END);
read(fd, temp, 3);
temp[3] = '\0';
if(!strcmp(temp, "TAG"))
{
read_string(fd, temp, sizeof(temp), -1, 30);
parse_tag("title", temp, id3, buf, buf_remaining, 0);
buf += 30;
buf_remaining -= 30;
read_string(fd, temp, sizeof(temp), -1, 30);
parse_tag("artist", temp, id3, buf, buf_remaining, 0);
buf += 30;
buf_remaining -= 30;
read_string(fd, temp, sizeof(temp), -1, 30);
parse_tag("album", temp, id3, buf, buf_remaining, 0);
buf += 30;
buf_remaining -= 30;
read_string(fd, temp, sizeof(temp), -1, 4);
parse_tag("year", temp, id3, buf, buf_remaining, 0);
buf += 4;
buf_remaining -= 4;
read_string(fd, temp, sizeof(temp), -1, 30);
parse_tag("comment", temp, id3, buf, buf_remaining, 0);
buf += 30;
buf_remaining -= 30;
read_string(fd, temp, sizeof(temp), -1, 1);
parse_tag("genre", temp, id3, buf, buf_remaining, 0);
return 0;
}
return -1;
}
static inline int real_read_audio_stream_info(int fd, RMContext *rmctx)
{
int skipped = 0;
@ -348,7 +397,6 @@ static int rm_parse_header(int fd, RMContext *rmctx, struct mp3entry *id3)
lseek(fd, len + 4, SEEK_CUR);
#endif
skipped += len + 4;
//From ffmpeg: codec_pos = url_ftell(pb);
read_uint32be(fd,&v);
skipped += 4;
@ -410,10 +458,12 @@ bool get_rm_metadata(int fd, struct mp3entry* id3)
if(rm_parse_header(fd, rmctx, id3) < 0)
return false;
/* Copy tags */
if(real_read_id3v1_tags(fd, id3)) {
/* file has no id3v1 tags, use the tags from CONT chunk */
id3->title = id3->id3v1buf[0];
id3->artist = id3->id3v1buf[1];
id3->comment = id3->id3v1buf[3];
id3->comment= id3->id3v1buf[3];
}
switch(rmctx->codec_type)
{