void add_raw_value(tag_list &p_tag_list, GValue const *p_value, std::string const &p_name, GstTagMergeMode const p_merge_mode)
{
g_assert(p_value != NULL);
g_assert(!p_name.empty());
if (p_tag_list.is_empty())
p_tag_list = tag_list(gst_tag_list_new_empty());
gst_tag_list_add_value(p_tag_list.get_tag_list(), p_merge_mode, p_name.c_str(), p_value);
}
static gboolean on_activate(GstPad* pad, GstObject* parent) {
gst_pad_activate_mode(pad,GST_PAD_MODE_PUSH,TRUE);
GstTagList* list = gst_tag_list_new_empty();
GValue value;
memset(&value,0,sizeof(value));
g_value_init(&value,G_TYPE_DOUBLE);
fprintf(stderr,"bwub setting gain/peak %f %f %f\n",
g_activate_gain.peak, g_activate_gain.gain,
g_activate_gain.level);
g_value_set_double(&value,g_activate_gain.gain*2);
gst_tag_list_add_value(list, GST_TAG_MERGE_REPLACE, GST_TAG_TRACK_GAIN, &value);
gst_tag_list_add_value(list, GST_TAG_MERGE_REPLACE, GST_TAG_ALBUM_GAIN, &value);
g_value_set_double(&value,g_activate_gain.peak*2);
gst_tag_list_add_value(list, GST_TAG_MERGE_REPLACE, GST_TAG_TRACK_PEAK, &value);
gst_tag_list_add_value(list, GST_TAG_MERGE_REPLACE, GST_TAG_ALBUM_PEAK, &value);
g_value_set_double(&value,g_activate_gain.level);
gst_tag_list_add_value(list, GST_TAG_MERGE_REPLACE, GST_TAG_REFERENCE_LEVEL, &value);
assert(TRUE==gst_pad_send_event(pad,gst_event_new_tag(list)));
return TRUE;
}
/**
* gst_tag_setter_add_tag_value:
* @setter: a #GstTagSetter
* @mode: the mode to use
* @tag: tag to set
* @value: GValue to set for the tag
*
* Adds the given tag / GValue pair on the setter using the given merge mode.
*
* Since: 0.10.24
*/
void
gst_tag_setter_add_tag_value (GstTagSetter * setter,
GstTagMergeMode mode, const gchar * tag, const GValue * value)
{
GstTagData *data;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
data = gst_tag_setter_get_data (setter);
if (!data->list)
data->list = gst_tag_list_new ();
gst_tag_list_add_value (data->list, mode, tag, value);
}
static gboolean
metadataparse_handle_unit_tags (ExifEntry * entry, MEUserData * meudata,
const ExifByteOrder byte_order)
{
gboolean ret = TRUE;
/* FIXME: Cast to gint because EXIF_TAG_GPS_ALTITUDE_REF
* and EXIF_TAG_GPS_LONGITUDE_REF are not part of ExifTag
* and gcc warns about this
*/
switch ((gint) entry->tag) {
case EXIF_TAG_RESOLUTION_UNIT:
meudata->resolution_unit = exif_get_short (entry->data, byte_order);
if (meudata->resolution_unit == 3) {
/* if [xy]resolution has alredy been add in cm, replace it in inches */
GValue cm = { 0, };
GValue inch = { 0, };
GValue factor = { 0, };
g_value_init (&factor, GST_TYPE_FRACTION);
gst_value_set_fraction (&factor, 2, 5);
if (gst_tag_list_copy_value (&cm, meudata->taglist,
GST_TAG_IMAGE_XRESOLUTION)) {
g_value_init (&inch, GST_TYPE_FRACTION);
gst_tag_list_add_value (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_IMAGE_XRESOLUTION, &inch);
g_value_unset (&inch);
g_value_unset (&cm);
}
if (gst_tag_list_copy_value (&cm, meudata->taglist,
GST_TAG_IMAGE_YRESOLUTION)) {
g_value_init (&inch, GST_TYPE_FRACTION);
gst_tag_list_add_value (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_IMAGE_YRESOLUTION, &inch);
g_value_unset (&inch);
g_value_unset (&cm);
}
g_value_unset (&factor);
}
break;
case EXIF_TAG_GPS_ALTITUDE_REF:
{
gdouble value;
meudata->altitude_ref = entry->data[0];
if (gst_tag_list_get_double (meudata->taglist,
GST_TAG_GEO_LOCATION_ELEVATION, &value)) {
GST_DEBUG ("alt-ref: %d", meudata->altitude_ref);
if (((meudata->altitude_ref == 1) && (value > 0.0)) ||
((meudata->altitude_ref == 0) && (value < 0.0))) {
gst_tag_list_add (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_GEO_LOCATION_ELEVATION, -value, NULL);
}
}
}
break;
case EXIF_TAG_GPS_LATITUDE_REF:
{
gdouble value;
meudata->latitude_ref = entry->data[0];
if (gst_tag_list_get_double (meudata->taglist,
GST_TAG_GEO_LOCATION_LATITUDE, &value)) {
GST_DEBUG ("lat-ref: %c", meudata->latitude_ref);
if (((meudata->latitude_ref == 'S') && (value > 0.0)) ||
((meudata->latitude_ref == 'N') && (value < 0.0))) {
gst_tag_list_add (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_GEO_LOCATION_LATITUDE, -value, NULL);
}
}
}
break;
case EXIF_TAG_GPS_LONGITUDE_REF:
{
gdouble value;
meudata->longitude_ref = entry->data[0];
if (gst_tag_list_get_double (meudata->taglist,
GST_TAG_GEO_LOCATION_LONGITUDE, &value)) {
GST_DEBUG ("lon-ref: %c", meudata->longitude_ref);
if (((meudata->longitude_ref == 'W') && (value > 0.0)) ||
((meudata->longitude_ref == 'E') && (value < 0.0))) {
gst_tag_list_add (meudata->taglist, GST_TAG_MERGE_REPLACE,
GST_TAG_GEO_LOCATION_LONGITUDE, -value, NULL);
}
}
}
break;
default:
ret = FALSE;
break;
}
return ret;
}
/**
* 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;
}
