/*
* NAME: tag->clearframes()
* DESCRIPTION: detach and delete all frames associated with a tag
*/
void id3_tag_clearframes(struct id3_tag *tag)
{
unsigned int i;
for (i = 0; i < tag->nframes; ++i) {
id3_frame_delref(tag->frames[i]);
id3_frame_delete(tag->frames[i]);
}
tag->nframes = 0;
}
static
int v1_attachstr(struct id3_tag *tag, char const *id,
char *text, unsigned long number)
{
struct id3_frame *frame;
id3_ucs4_t ucs4[31];
if (text) {
trim(text);
if (*text == 0)
return 0;
}
frame = id3_frame_new(id);
if (frame == 0)
return -1;
if (id3_field_settextencoding(&frame->fields[0],
ID3_FIELD_TEXTENCODING_ISO_8859_1) == -1)
goto fail;
if (text)
id3_latin1_decode(text, ucs4);
else
id3_ucs4_putnumber(ucs4, number);
if (strcmp(id, ID3_FRAME_COMMENT) == 0) {
if (id3_field_setlanguage(&frame->fields[1], "XXX") == -1 ||
id3_field_setstring(&frame->fields[2], id3_ucs4_empty) == -1 ||
id3_field_setfullstring(&frame->fields[3], ucs4) == -1)
goto fail;
}
else {
id3_ucs4_t *ptr = ucs4;
if (id3_field_setstrings(&frame->fields[1], 1, &ptr) == -1)
goto fail;
}
if (id3_tag_attachframe(tag, frame) == -1)
goto fail;
return 0;
fail:
id3_frame_delete(frame);
return -1;
}
int BarFlyID3AddCover(struct id3_tag* tag, uint8_t const* cover_art,
size_t cover_size, BarSettings_t const* settings)
{
/*
* http://flac.sourceforge.net/api/group__flac__format.html#ga113
*/
int const PICTURE_TYPE_FRONT_COVER = 3;
char const BAR_FLY_ID3_FRAME_PICTURE[] = "APIC";
int exit_status = 0;
int status;
struct id3_frame* frame = NULL;
union id3_field* field;
int index;
char* mime_type;
assert(tag != NULL);
assert(cover_art != NULL);
assert(settings != NULL);
/*
* Get a new picture frame.
*/
frame = id3_frame_new(BAR_FLY_ID3_FRAME_PICTURE);
if (frame == NULL) {
BarUiMsg(settings, MSG_ERR, "Failed to create new frame (type = %s).\n",
BAR_FLY_ID3_FRAME_PICTURE);
goto error;
}
/*
* Go through all the frame fields setting the mime type, image type, and
* the image data.
*/
index = 0;
field = id3_frame_field(frame, index);
while (field != NULL) {
switch (id3_field_type(field)) {
/*
* Set the cover art mime type.
*/
case (ID3_FIELD_TYPE_LATIN1):
if ((cover_art[0] == 0xFF) && (cover_art[1] == 0xD8)) {
mime_type = "image/jpeg";
} else if ((cover_art[0] == 0x89) &&
(cover_art[1] == 0x50) &&
(cover_art[2] == 0x4E) &&
(cover_art[3] == 0x47) &&
(cover_art[4] == 0x0D) &&
(cover_art[5] == 0x0A) &&
(cover_art[6] == 0x1A) &&
(cover_art[7] == 0x0A)) {
mime_type = "image/png";
} else {
mime_type = NULL;
}
id3_field_setlatin1(field, (id3_latin1_t const*)mime_type);
break;
/*
* Designate this as the front cover.
*/
case (ID3_FIELD_TYPE_INT8):
id3_field_setint(field, PICTURE_TYPE_FRONT_COVER);
break;
/*
* Set the image data.
*/
case (ID3_FIELD_TYPE_BINARYDATA):
id3_field_setbinarydata(field, cover_art, cover_size);
break;
default:
break;
}
index++;
field = id3_frame_field(frame, index);
}
/*
* Attach the frame to the tag.
*/
status = id3_tag_attachframe(tag, frame);
if (status != 0) {
BarUiMsg(settings, MSG_ERR, "Failed to attach cover art frame.\n");
goto error;
}
goto end;
error:
if (frame != NULL) {
id3_frame_delete(frame);
}
exit_status = -1;
end:
return exit_status;
}
int BarFlyID3AddFrame(struct id3_tag* tag, char const* type,
char const* value, BarSettings_t const* settings)
{
int exit_status = 0;
int status;
struct id3_frame* frame = NULL;
union id3_field* field;
id3_ucs4_t* ucs4 = NULL;
int index;
assert(tag != NULL);
assert(type != NULL);
assert(value != NULL);
assert(settings != NULL);
/*
* Create the frame.
*/
frame = id3_frame_new(type);
if (frame == NULL) {
BarUiMsg(settings, MSG_ERR, "Failed to create new frame (type = %s).\n",
type);
goto error;
}
frame->flags &= ~ID3_FRAME_FLAG_FORMATFLAGS;
/*
* Get the string list field of the frame.
*/
index = 0;
do {
field = id3_frame_field(frame, index);
index++;
} while (id3_field_type(field) != ID3_FIELD_TYPE_STRINGLIST);
assert(id3_field_type(field) == ID3_FIELD_TYPE_STRINGLIST);
/*
* Add the value as a string to the field.
*/
ucs4 = id3_latin1_ucs4duplicate((id3_latin1_t*)value);
if (ucs4 == NULL) {
BarUiMsg(settings, MSG_ERR, "Could not allocate memory.\n");
goto error;
}
status = id3_field_addstring(field, ucs4);
if (status != 0) {
BarUiMsg(settings, MSG_ERR, "Failed to set field value (value = %s).\n",
value);
goto error;
}
/*
* Attach the frame to the tag.
*/
status = id3_tag_attachframe(tag, frame);
if (status != 0) {
BarUiMsg(settings, MSG_ERR, "Failed to attach frame (type = %s).\n",
type);
goto error;
}
goto end;
error:
if (frame != NULL) {
id3_frame_delete(frame);
}
exit_status = -1;
end:
if (ucs4 != NULL) {
free(ucs4);
}
return exit_status;
}
/*
* NAME: compat->fixup()
* DESCRIPTION: finish compatibility translations
*/
int id3_compat_fixup(struct id3_tag *tag)
{
struct id3_frame *frame;
unsigned int index;
id3_ucs4_t timestamp[17] = { 0 };
int result = 0;
/* create a TDRC frame from obsolete TYER/TDAT/TIME frames */
/*
* TYE/TYER: YYYY
* TDA/TDAT: DDMM
* TIM/TIME: HHMM
*
* TDRC: yyyy-MM-ddTHH:mm
*/
index = 0;
while((frame = id3_tag_findframe(tag, ID3_FRAME_OBSOLETE, index++)))
{
char const *id;
id3_byte_t const *data, *end;
id3_length_t length;
enum id3_field_textencoding encoding;
id3_ucs4_t *string;
id = id3_field_getframeid(&frame->fields[0]);
assert(id);
if(strcmp(id, "TYER") != 0 && strcmp(id, "YTYE") != 0 &&
strcmp(id, "TDAT") != 0 && strcmp(id, "YTDA") != 0 &&
strcmp(id, "TIME") != 0 && strcmp(id, "YTIM") != 0)
continue;
data = id3_field_getbinarydata(&frame->fields[1], &length);
assert(data);
if(length < 1)
continue;
end = data + length;
encoding = (enum id3_field_textencoding)id3_parse_uint(&data, 1);
string = id3_parse_string(&data, end - data, encoding, 0);
if(id3_ucs4_length(string) < 4)
{
free(string);
continue;
}
if(strcmp(id, "TYER") == 0 ||
strcmp(id, "YTYE") == 0)
{
timestamp[0] = string[0];
timestamp[1] = string[1];
timestamp[2] = string[2];
timestamp[3] = string[3];
}
else if(strcmp(id, "TDAT") == 0 ||
strcmp(id, "YTDA") == 0)
{
timestamp[4] = '-';
timestamp[5] = string[2];
timestamp[6] = string[3];
timestamp[7] = '-';
timestamp[8] = string[0];
timestamp[9] = string[1];
}
else /* TIME or YTIM */
{
timestamp[10] = 'T';
timestamp[11] = string[0];
timestamp[12] = string[1];
timestamp[13] = ':';
timestamp[14] = string[2];
timestamp[15] = string[3];
}
free(string);
}
if(timestamp[0])
{
id3_ucs4_t *strings;
frame = id3_frame_new("TDRC");
if(frame == 0)
goto fail;
strings = timestamp;
if(id3_field_settextencoding(&frame->fields[0],
ID3_FIELD_TEXTENCODING_ISO_8859_1) == -1 ||
id3_field_setstrings(&frame->fields[1], 1, &strings) == -1 ||
id3_tag_attachframe(tag, frame) == -1)
{
id3_frame_delete(frame);
goto fail;
}
}
if(0)
{
fail:
result = -1;
}
return result;
}