static gchar *
gst_icydemux_unicodify (const gchar * str)
{
const gchar *env_vars[] = { "GST_ICY_TAG_ENCODING",
"GST_TAG_ENCODING", NULL
};
return gst_tag_freeform_string_to_utf8 (str, -1, env_vars);
}
static inline gchar *
get_utf8_from_data (const guint8 * data, guint16 size)
{
const gchar *env_vars[] = { "GST_JPEG_TAG_ENCODING",
"GST_TAG_ENCODING", NULL
};
const char *str = (gchar *) data;
return gst_tag_freeform_string_to_utf8 (str, size, env_vars);
}
static void
gst_tag_extract_id3v1_string (GstTagList * list, const gchar * tag,
const gchar * start, const guint size)
{
const gchar *env_vars[] = { "GST_ID3V1_TAG_ENCODING",
"GST_ID3_TAG_ENCODING", "GST_TAG_ENCODING", NULL
};
gchar *utf8;
utf8 = gst_tag_freeform_string_to_utf8 (start, size, env_vars);
if (utf8 && *utf8 != '\0') {
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, tag, utf8, NULL);
}
g_free (utf8);
}
void
gst_cdio_add_cdtext_field (GstObject * src, cdtext_t * cdtext, track_t track,
cdtext_field_t field, const gchar * gst_tag, GstTagList ** p_tags)
{
const gchar *vars[] = { "GST_CDTEXT_TAG_ENCODING", "GST_TAG_ENCODING", NULL };
const gchar *txt;
gchar *txt_utf8;
#if LIBCDIO_VERSION_NUM > 83
txt = cdtext_get_const (cdtext, field, track);
#else
txt = cdtext_get_const (field, cdtext);
#endif
if (txt == NULL || *txt == '\0') {
GST_DEBUG_OBJECT (src, "empty CD-TEXT field %u (%s)", field, gst_tag);
return;
}
/* The character encoding is not specified, and there is no provision
* for indicating in the CD-Text data which encoding is in use.. */
txt_utf8 = gst_tag_freeform_string_to_utf8 (txt, -1, vars);
if (txt_utf8 == NULL) {
GST_WARNING_OBJECT (src, "CD-TEXT %s could not be converted to UTF-8, "
"try setting the GST_CDTEXT_TAG_ENCODING or GST_TAG_ENCODING "
"environment variable", gst_tag);
return;
}
/* FIXME: beautify strings (they might be all uppercase for example)? */
if (*p_tags == NULL)
*p_tags = gst_tag_list_new_empty ();
gst_tag_list_add (*p_tags, GST_TAG_MERGE_REPLACE, gst_tag, txt_utf8, NULL);
GST_DEBUG_OBJECT (src, "CD-TEXT: %s = %s", gst_tag, txt_utf8);
g_free (txt_utf8);
}
/**
* gst_riff_parse_info:
* @element: caller element (used for debugging/error).
* @buf: input data to be used for parsing, stripped from header.
* @taglist: a pointer to a taglist (returned by this function)
* containing information about this stream. May be
* NULL if no supported tags were found.
*
* Parses stream metadata from input data.
*/
void
gst_riff_parse_info (GstElement * element,
GstBuffer * buf, GstTagList ** _taglist)
{
guint8 *data;
guint size, tsize;
guint32 tag;
const gchar *type;
GstTagList *taglist;
g_return_if_fail (_taglist != NULL);
if (!buf) {
*_taglist = NULL;
return;
}
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
taglist = gst_tag_list_new ();
while (size > 8) {
tag = GST_READ_UINT32_LE (data);
tsize = GST_READ_UINT32_LE (data + 4);
size -= 8;
data += 8;
GST_DEBUG ("tag %" GST_FOURCC_FORMAT ", size %u",
GST_FOURCC_ARGS (tag), tsize);
if (tsize > size) {
GST_WARNING_OBJECT (element,
"Tagsize %d is larger than available data %d", tsize, size);
tsize = size;
}
/* find out the type of metadata */
switch (tag) {
case GST_RIFF_INFO_IARL:
type = GST_TAG_LOCATION;
break;
case GST_RIFF_INFO_IART:
type = GST_TAG_ARTIST;
break;
case GST_RIFF_INFO_ICMS:
type = NULL; /*"Commissioner"; */
break;
case GST_RIFF_INFO_ICMT:
type = GST_TAG_COMMENT;
break;
case GST_RIFF_INFO_ICOP:
type = GST_TAG_COPYRIGHT;
break;
case GST_RIFF_INFO_ICRD:
type = GST_TAG_DATE;
break;
case GST_RIFF_INFO_ICRP:
type = NULL; /*"Cropped"; */
break;
case GST_RIFF_INFO_IDIM:
type = NULL; /*"Dimensions"; */
break;
case GST_RIFF_INFO_IDPI:
type = NULL; /*"Dots per Inch"; */
break;
case GST_RIFF_INFO_IENG:
type = NULL; /*"Engineer"; */
break;
case GST_RIFF_INFO_IGNR:
type = GST_TAG_GENRE;
break;
case GST_RIFF_INFO_IKEY:
type = GST_TAG_KEYWORDS;
break;
case GST_RIFF_INFO_ILGT:
type = NULL; /*"Lightness"; */
break;
case GST_RIFF_INFO_IMED:
type = NULL; /*"Medium"; */
break;
case GST_RIFF_INFO_INAM:
type = GST_TAG_TITLE;
break;
case GST_RIFF_INFO_IPLT:
type = NULL; /*"Palette"; */
break;
case GST_RIFF_INFO_IPRD:
type = NULL; /*"Product"; */
break;
case GST_RIFF_INFO_ISBJ:
type = NULL; /*"Subject"; */
break;
case GST_RIFF_INFO_ISFT:
type = GST_TAG_ENCODER;
break;
case GST_RIFF_INFO_ISHP:
type = NULL; /*"Sharpness"; */
break;
case GST_RIFF_INFO_ISRC:
type = GST_TAG_ISRC;
break;
case GST_RIFF_INFO_ISRF:
type = NULL; /*"Source Form"; */
break;
case GST_RIFF_INFO_ITCH:
type = NULL; /*"Technician"; */
break;
default:
type = NULL;
GST_WARNING_OBJECT (element,
"Unknown INFO (metadata) tag entry %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (tag));
break;
}
if (type != NULL && data[0] != '\0') {
static const gchar *env_vars[] = { "GST_AVI_TAG_ENCODING",
"GST_RIFF_TAG_ENCODING", "GST_TAG_ENCODING", NULL
};
gchar *val;
val = gst_tag_freeform_string_to_utf8 ((gchar *) data, tsize, env_vars);
if (val) {
gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, type, val, NULL);
g_free (val);
} else {
GST_WARNING_OBJECT (element, "could not extract %s tag", type);
}
}
if (tsize & 1) {
tsize++;
if (tsize > size)
tsize = size;
}
data += tsize;
size -= tsize;
}
if (!gst_tag_list_is_empty (taglist)) {
*_taglist = taglist;
} else {
*_taglist = NULL;
gst_tag_list_free (taglist);
}
return;
}
/**
* gst_riff_parse_info:
* @element: caller element (used for debugging/error).
* @buf: input data to be used for parsing, stripped from header.
* @taglist: a pointer to a taglist (returned by this function)
* containing information about this stream. May be
* NULL if no supported tags were found.
*
* Parses stream metadata from input data.
*/
void
gst_riff_parse_info (GstElement * element,
GstBuffer * buf, GstTagList ** _taglist)
{
guint8 *data;
guint size, tsize;
guint32 tag;
const gchar *type;
GstTagList *taglist;
g_return_if_fail (_taglist != NULL);
if (!buf) {
*_taglist = NULL;
return;
}
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
taglist = gst_tag_list_new ();
while (size > 8) {
tag = GST_READ_UINT32_LE (data);
tsize = GST_READ_UINT32_LE (data + 4);
GST_MEMDUMP_OBJECT (element, "tag chunk", data, MIN (tsize + 8, size));
size -= 8;
data += 8;
GST_DEBUG ("tag %" GST_FOURCC_FORMAT ", size %u",
GST_FOURCC_ARGS (tag), tsize);
if (tsize > size) {
GST_WARNING_OBJECT (element,
"Tagsize %d is larger than available data %d", tsize, size);
tsize = size;
}
/* make uppercase */
tag = tag & 0xDFDFDFDF;
/* find out the type of metadata */
switch (tag) {
case GST_RIFF_INFO_IARL:
type = GST_TAG_LOCATION;
break;
case GST_RIFF_INFO_IAAR:
type = GST_TAG_ALBUM_ARTIST;
break;
case GST_RIFF_INFO_IART:
type = GST_TAG_ARTIST;
break;
case GST_RIFF_INFO_ICMS:
type = NULL; /*"Commissioner"; */
break;
case GST_RIFF_INFO_ICMT:
type = GST_TAG_COMMENT;
break;
case GST_RIFF_INFO_ICOP:
type = GST_TAG_COPYRIGHT;
break;
case GST_RIFF_INFO_ICRD:
type = GST_TAG_DATE;
break;
case GST_RIFF_INFO_ICRP:
type = NULL; /*"Cropped"; */
break;
case GST_RIFF_INFO_IDIM:
type = NULL; /*"Dimensions"; */
break;
case GST_RIFF_INFO_IDPI:
type = NULL; /*"Dots per Inch"; */
break;
case GST_RIFF_INFO_IENG:
type = NULL; /*"Engineer"; */
break;
case GST_RIFF_INFO_IGNR:
type = GST_TAG_GENRE;
break;
case GST_RIFF_INFO_IKEY:
type = GST_TAG_KEYWORDS;
break;
case GST_RIFF_INFO_ILGT:
type = NULL; /*"Lightness"; */
break;
case GST_RIFF_INFO_IMED:
type = NULL; /*"Medium"; */
break;
case GST_RIFF_INFO_INAM:
type = GST_TAG_TITLE;
break;
case GST_RIFF_INFO_IPLT:
type = NULL; /*"Palette"; */
break;
case GST_RIFF_INFO_IPRD:
type = GST_TAG_ALBUM;
break;
case GST_RIFF_INFO_ISBJ:
type = GST_TAG_ALBUM_ARTIST;
break;
case GST_RIFF_INFO_ISFT:
type = GST_TAG_ENCODER;
break;
case GST_RIFF_INFO_ISHP:
type = NULL; /*"Sharpness"; */
break;
case GST_RIFF_INFO_ISRC:
type = GST_TAG_ISRC;
break;
case GST_RIFF_INFO_ISRF:
type = NULL; /*"Source Form"; */
break;
case GST_RIFF_INFO_ITCH:
type = NULL; /*"Technician"; */
break;
case GST_RIFF_INFO_ITRK:
type = GST_TAG_TRACK_NUMBER;
break;
default:
type = NULL;
GST_WARNING_OBJECT (element,
"Unknown INFO (metadata) tag entry %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (tag));
break;
}
if (type != NULL && data[0] != '\0') {
static const gchar *env_vars[] = { "GST_AVI_TAG_ENCODING",
"GST_RIFF_TAG_ENCODING", "GST_TAG_ENCODING", NULL
};
GType tag_type;
gchar *val;
GST_DEBUG_OBJECT (element, "mapped tag %" GST_FOURCC_FORMAT " to tag %s",
GST_FOURCC_ARGS (tag), type);
tag_type = gst_tag_get_type (type);
val = gst_tag_freeform_string_to_utf8 ((gchar *) data, tsize, env_vars);
if (val != NULL) {
if (tag_type == G_TYPE_STRING) {
gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, type, val, NULL);
} else {
GValue tag_val = { 0, };
g_value_init (&tag_val, tag_type);
if (gst_value_deserialize (&tag_val, val)) {
gst_tag_list_add_value (taglist, GST_TAG_MERGE_APPEND, type,
&tag_val);
} else {
GST_WARNING_OBJECT (element, "could not deserialize '%s' into a "
"tag %s of type %s", val, type, g_type_name (tag_type));
}
g_value_unset (&tag_val);
}
g_free (val);
} else {
GST_WARNING_OBJECT (element, "could not extract %s tag", type);
}
}
if (tsize & 1) {
tsize++;
if (tsize > size)
tsize = size;
}
data += tsize;
size -= tsize;
}
if (!gst_tag_list_is_empty (taglist)) {
GST_INFO_OBJECT (element, "extracted tags: %" GST_PTR_FORMAT, taglist);
*_taglist = taglist;
} else {
*_taglist = NULL;
gst_tag_list_free (taglist);
}
return;
}
