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tag_id3: support multiple values 

Loop over all frames with a specific id, and import all of them - not
just the first one (index 0).
This commit is contained in:
Max Kellermann 2010-12-07 18:05:44 +01:00
parent cb9965bab5
commit 748a8a6f42
2 changed files with 37 additions and 10 deletions
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1
NEWS
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@ -20,6 +20,7 @@ ver 0.16 (20??/??/??)
* tags:
- added tags "ArtistSort", "AlbumArtistSort"
- id3: revised "performer" tag support
- id3: support multiple values
- ape: MusicBrainz tags
- ape: support multiple values
* decoders:

46
src/tag_id3.c
View File

@ -126,17 +126,16 @@ import_id3_string(bool is_id3v1, const id3_ucs4_t *ucs4)
* - string list
*/
static void
tag_id3_import_text(struct tag *dest, struct id3_tag *tag, const char *id,
enum tag_type type)
tag_id3_import_text_frame(struct tag *dest, struct id3_tag *tag,
const struct id3_frame *frame,
enum tag_type type)
{
struct id3_frame const *frame;
id3_ucs4_t const *ucs4;
id3_utf8_t *utf8;
union id3_field const *field;
unsigned int nstrings, i;
frame = id3_tag_findframe(tag, id, 0);
if (frame == NULL || frame->nfields != 2)
if (frame->nfields != 2)
return;
/* check the encoding field */
@ -170,6 +169,20 @@ tag_id3_import_text(struct tag *dest, struct id3_tag *tag, const char *id,
}
}
/**
* Import all text frames with the specified id (ID3v2.4.0 section
* 4.2). This is a wrapper for tag_id3_import_text_frame().
*/
static void
tag_id3_import_text(struct tag *dest, struct id3_tag *tag, const char *id,
enum tag_type type)
{
const struct id3_frame *frame;
for (unsigned i = 0;
(frame = id3_tag_findframe(tag, id, i)) != NULL; ++i)
tag_id3_import_text_frame(dest, tag, frame, type);
}
/**
* Import a "Comment frame" (ID3v2.4.0 section 4.10). It
* contains 4 fields:
@ -180,16 +193,15 @@ tag_id3_import_text(struct tag *dest, struct id3_tag *tag, const char *id,
* - full string (we use this one)
*/
static void
tag_id3_import_comment(struct tag *dest, struct id3_tag *tag, const char *id,
enum tag_type type)
tag_id3_import_comment_frame(struct tag *dest, struct id3_tag *tag,
const struct id3_frame *frame,
enum tag_type type)
{
struct id3_frame const *frame;
id3_ucs4_t const *ucs4;
id3_utf8_t *utf8;
union id3_field const *field;
frame = id3_tag_findframe(tag, id, 0);
if (frame == NULL || frame->nfields != 4)
if (frame->nfields != 4)
return;
/* for now I only read the 4th field, with the fullstring */
@ -209,6 +221,20 @@ tag_id3_import_comment(struct tag *dest, struct id3_tag *tag, const char *id,
g_free(utf8);
}
/**
* Import all comment frames (ID3v2.4.0 section 4.10). This is a
* wrapper for tag_id3_import_comment_frame().
*/
static void
tag_id3_import_comment(struct tag *dest, struct id3_tag *tag, const char *id,
enum tag_type type)
{
const struct id3_frame *frame;
for (unsigned i = 0;
(frame = id3_tag_findframe(tag, id, i)) != NULL; ++i)
tag_id3_import_comment_frame(dest, tag, frame, type);
}
/**
* Parse a TXXX name, and convert it to a tag_type enum value.
* Returns TAG_NUM_OF_ITEM_TYPES if the TXXX name is not understood.