/**
* gst_navigation_query_parse_commands_nth:
* @query: a #GstQuery
* @nth: the nth command to retrieve.
* @cmd: a pointer to store the nth command into.
*
* Parse the #GstNavigation command query and retrieve the @nth command from
* it into @cmd. If the list contains less elements than @nth, @cmd will be
* set to #GST_NAVIGATION_COMMAND_INVALID.
*
* Returns: %TRUE if the query could be successfully parsed. %FALSE if not.
*/
gboolean
gst_navigation_query_parse_commands_nth (GstQuery * query, guint nth,
GstNavigationCommand * cmd)
{
const GstStructure *structure;
const GValue *list;
g_return_val_if_fail (GST_NAVIGATION_QUERY_HAS_TYPE (query, COMMANDS), FALSE);
if (cmd == NULL)
return TRUE;
structure = gst_query_get_structure (query);
list = gst_structure_get_value (structure, "commands");
if (list == NULL) {
*cmd = GST_NAVIGATION_COMMAND_INVALID;
} else {
if (nth < gst_value_list_get_size (list)) {
*cmd = (GstNavigationCommand)
g_value_get_enum (gst_value_list_get_value (list, nth));
} else
*cmd = GST_NAVIGATION_COMMAND_INVALID;
}
return TRUE;
}
static gboolean
handle_queued_objects (APP_STATE_T * state)
{
GstMiniObject *object = NULL;
g_mutex_lock (&state->queue_lock);
if (state->flushing) {
g_cond_broadcast (&state->cond);
goto beach;
} else if (g_async_queue_length (state->queue) == 0) {
goto beach;
}
if ((object = g_async_queue_try_pop (state->queue))) {
if (GST_IS_BUFFER (object)) {
GstBuffer *buffer = GST_BUFFER_CAST (object);
update_image (state, buffer);
render_scene (state);
gst_buffer_unref (buffer);
if (!SYNC_BUFFERS) {
object = NULL;
}
} else if (GST_IS_QUERY (object)) {
GstQuery *query = GST_QUERY_CAST (object);
GstStructure *s = (GstStructure *) gst_query_get_structure (query);
if (gst_structure_has_name (s, "not-used")) {
g_assert_not_reached ();
} else {
g_assert_not_reached ();
}
} else if (GST_IS_EVENT (object)) {
GstEvent *event = GST_EVENT_CAST (object);
g_print ("\nevent %p %s\n", event,
gst_event_type_get_name (GST_EVENT_TYPE (event)));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
flush_internal (state);
break;
default:
break;
}
gst_event_unref (event);
object = NULL;
}
}
if (object) {
state->popped_obj = object;
g_cond_broadcast (&state->cond);
}
beach:
g_mutex_unlock (&state->queue_lock);
return FALSE;
}
gboolean
gst_droid_query_parse_video_color_format (GstQuery * query, gint * format)
{
GstStructure *structure;
structure = gst_query_get_structure (query);
return gst_structure_get_int (structure, "color-format", format);
}
/**
* gst_query_set_uri:
* @query: a #GstQuery with query type GST_QUERY_URI
* @uri: the URI to set
*
* Answer a URI query by setting the requested URI.
*
* Since: 0.10.22
*/
void
gst_query_set_uri (GstQuery * query, const gchar * uri)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_URI);
g_return_if_fail (gst_uri_is_valid (uri));
structure = gst_query_get_structure (query);
gst_structure_id_set (structure, GST_QUARK (URI), G_TYPE_STRING, uri, NULL);
}
/**
* gst_navigation_query_set_angles:
* @query: a #GstQuery
* @cur_angle: the current viewing angle to set.
* @n_angles: the number of viewing angles to set.
*
* Set the #GstNavigation angles query result field in @query.
*
* Since: 0.10.23
*/
void
gst_navigation_query_set_angles (GstQuery * query, guint cur_angle,
guint n_angles)
{
GstStructure *structure;
g_return_if_fail (GST_NAVIGATION_QUERY_HAS_TYPE (query, ANGLES));
structure = gst_query_get_structure (query);
gst_structure_set (structure,
"angle", G_TYPE_UINT, cur_angle, "angles", G_TYPE_UINT, n_angles, NULL);
}
/**
* gst_query_set_duration:
* @query: a #GstQuery
* @format: the #GstFormat for the duration
* @duration: the duration of the stream
*
* Answer a duration query by setting the requested value in the given format.
*/
void
gst_query_set_duration (GstQuery * query, GstFormat format, gint64 duration)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_DURATION);
structure = gst_query_get_structure (query);
gst_structure_id_set (structure,
GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
GST_QUARK (DURATION), G_TYPE_INT64, duration, NULL);
}
/**
* gst_query_parse_uri:
* @query: a #GstQuery
* @uri: the storage for the current URI (may be NULL)
*
* Parse an URI query, writing the URI into @uri as a newly
* allocated string, if the respective parameters are non-NULL.
* Free the string with g_free() after usage.
*
* Since: 0.10.22
*/
void
gst_query_parse_uri (GstQuery * query, gchar ** uri)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_URI);
structure = gst_query_get_structure (query);
if (uri)
*uri = g_value_dup_string (gst_structure_id_get_value (structure,
GST_QUARK (URI)));
}
/**
* gst_query_set_position:
* @query: a #GstQuery with query type GST_QUERY_POSITION
* @format: the requested #GstFormat
* @cur: the position to set
*
* Answer a position query by setting the requested value in the given format.
*/
void
gst_query_set_position (GstQuery * query, GstFormat format, gint64 cur)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_POSITION);
structure = gst_query_get_structure (query);
gst_structure_id_set (structure,
GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
GST_QUARK (CURRENT), G_TYPE_INT64, cur, NULL);
}
/**
* gst_query_set_latency:
* @query: a #GstQuery
* @live: if there is a live element upstream
* @min_latency: the minimal latency of the live element
* @max_latency: the maximal latency of the live element
*
* Answer a latency query by setting the requested values in the given format.
*
* Since: 0.10.12
*/
void
gst_query_set_latency (GstQuery * query, gboolean live,
GstClockTime min_latency, GstClockTime max_latency)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_LATENCY);
structure = gst_query_get_structure (query);
gst_structure_id_set (structure,
GST_QUARK (LIVE), G_TYPE_BOOLEAN, live,
GST_QUARK (MIN_LATENCY), G_TYPE_UINT64, min_latency,
GST_QUARK (MAX_LATENCY), G_TYPE_UINT64, max_latency, NULL);
}
/**
* gst_query_parse_position:
* @query: a #GstQuery
* @format: the storage for the #GstFormat of the position values (may be NULL)
* @cur: the storage for the current position (may be NULL)
*
* Parse a position query, writing the format into @format, and the position
* into @cur, if the respective parameters are non-NULL.
*/
void
gst_query_parse_position (GstQuery * query, GstFormat * format, gint64 * cur)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_POSITION);
structure = gst_query_get_structure (query);
if (format)
*format = g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (FORMAT)));
if (cur)
*cur = g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (CURRENT)));
}
/**
* gst_query_set_convert:
* @query: a #GstQuery
* @src_format: the source #GstFormat
* @src_value: the source value
* @dest_format: the destination #GstFormat
* @dest_value: the destination value
*
* Answer a convert query by setting the requested values.
*/
void
gst_query_set_convert (GstQuery * query, GstFormat src_format, gint64 src_value,
GstFormat dest_format, gint64 dest_value)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_CONVERT);
structure = gst_query_get_structure (query);
gst_structure_id_set (structure,
GST_QUARK (SRC_FORMAT), GST_TYPE_FORMAT, src_format,
GST_QUARK (SRC_VALUE), G_TYPE_INT64, src_value,
GST_QUARK (DEST_FORMAT), GST_TYPE_FORMAT, dest_format,
GST_QUARK (DEST_VALUE), G_TYPE_INT64, dest_value, NULL);
}
/**
* gst_query_set_seeking:
* @query: a #GstQuery
* @format: the format to set for the @segment_start and @segment_end values
* @seekable: the seekable flag to set
* @segment_start: the segment_start to set
* @segment_end: the segment_end to set
*
* Set the seeking query result fields in @query.
*/
void
gst_query_set_seeking (GstQuery * query, GstFormat format,
gboolean seekable, gint64 segment_start, gint64 segment_end)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_SEEKING);
structure = gst_query_get_structure (query);
gst_structure_id_set (structure,
GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
GST_QUARK (SEEKABLE), G_TYPE_BOOLEAN, seekable,
GST_QUARK (SEGMENT_START), G_TYPE_INT64, segment_start,
GST_QUARK (SEGMENT_END), G_TYPE_INT64, segment_end, NULL);
}
/**
* gst_query_set_segment:
* @query: a #GstQuery
* @rate: the rate of the segment
* @format: the #GstFormat of the segment values (@start_value and @stop_value)
* @start_value: the start value
* @stop_value: the stop value
*
* Answer a segment query by setting the requested values. The normal
* playback segment of a pipeline is 0 to duration at the default rate of
* 1.0. If a seek was performed on the pipeline to play a different
* segment, this query will return the range specified in the last seek.
*
* @start_value and @stop_value will respectively contain the configured
* playback range start and stop values expressed in @format.
* The values are always between 0 and the duration of the media and
* @start_value <= @stop_value. @rate will contain the playback rate. For
* negative rates, playback will actually happen from @stop_value to
* @start_value.
*/
void
gst_query_set_segment (GstQuery * query, gdouble rate, GstFormat format,
gint64 start_value, gint64 stop_value)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_SEGMENT);
structure = gst_query_get_structure (query);
gst_structure_id_set (structure,
GST_QUARK (RATE), G_TYPE_DOUBLE, rate,
GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
GST_QUARK (START_VALUE), G_TYPE_INT64, start_value,
GST_QUARK (STOP_VALUE), G_TYPE_INT64, stop_value, NULL);
}
/**
* gst_query_set_buffering_range:
* @query: a #GstQuery
* @format: the format to set for the @start and @stop values
* @start: the start to set
* @stop: the stop to set
* @estimated_total: estimated total amount of download time
*
* Set the available query result fields in @query.
*
* Since: 0.10.20
*/
void
gst_query_set_buffering_range (GstQuery * query, GstFormat format,
gint64 start, gint64 stop, gint64 estimated_total)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_BUFFERING);
structure = gst_query_get_structure (query);
gst_structure_id_set (structure,
GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
GST_QUARK (START_VALUE), G_TYPE_INT64, start,
GST_QUARK (STOP_VALUE), G_TYPE_INT64, stop,
GST_QUARK (ESTIMATED_TOTAL), G_TYPE_INT64, estimated_total, NULL);
}
/**
* gst_query_parse_duration:
* @query: a #GstQuery
* @format: the storage for the #GstFormat of the duration value, or NULL.
* @duration: the storage for the total duration, or NULL.
*
* Parse a duration query answer. Write the format of the duration into @format,
* and the value into @duration, if the respective variables are non-NULL.
*/
void
gst_query_parse_duration (GstQuery * query, GstFormat * format,
gint64 * duration)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_DURATION);
structure = gst_query_get_structure (query);
if (format)
*format = g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (FORMAT)));
if (duration)
*duration = g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (DURATION)));
}
static void
do_query_stats (GstStatsTracer * self, GstPad * this_pad,
GstPadStats * this_pad_stats, GstPad * that_pad,
GstPadStats * that_pad_stats, GstQuery * qry, GstClockTime elapsed,
gboolean have_res, gboolean res)
{
GstElement *this_elem = get_real_pad_parent (this_pad);
GstElementStats *this_elem_stats = get_element_stats (self, this_elem);
GstElement *that_elem = get_real_pad_parent (that_pad);
GstElementStats *that_elem_stats = get_element_stats (self, that_elem);
gst_tracer_record_log (tr_query, (guint64) (guintptr) g_thread_self (),
elapsed, this_pad_stats->index, this_elem_stats->index,
that_pad_stats->index, that_elem_stats->index, GST_QUERY_TYPE_NAME (qry),
gst_query_get_structure (qry), have_res, res);
}
/**
* gst_query_parse_formats_length:
* @query: a #GstQuery
* @n_formats: the number of formats in this query.
*
* Parse the number of formats in the formats @query.
*
* Since: 0.10.4
*/
void
gst_query_parse_formats_length (GstQuery * query, guint * n_formats)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_FORMATS);
if (n_formats) {
const GValue *list;
structure = gst_query_get_structure (query);
list = gst_structure_get_value (structure, "formats");
if (list == NULL)
*n_formats = 0;
else
*n_formats = gst_value_list_get_size (list);
}
}
/**
* gst_query_set_formatsv:
* @query: a #GstQuery
* @n_formats: the number of formats to set.
* @formats: An array containing @n_formats @GstFormat values.
*
* Set the formats query result fields in @query. The number of formats passed
* in the @formats array must be equal to @n_formats.
*
* Since: 0.10.4
*/
void
gst_query_set_formatsv (GstQuery * query, gint n_formats, GstFormat * formats)
{
GValue list = { 0, };
GstStructure *structure;
gint i;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_FORMATS);
g_value_init (&list, GST_TYPE_LIST);
for (i = 0; i < n_formats; i++) {
gst_query_list_add_format (&list, formats[i]);
}
structure = gst_query_get_structure (query);
gst_structure_set_value (structure, "formats", &list);
g_value_unset (&list);
}
/**
* gst_navigation_query_set_commandsv:
* @query: a #GstQuery
* @n_cmds: the number of commands to set.
* @cmds: An array containing @n_cmds @GstNavigationCommand values.
*
* Set the #GstNavigation command query result fields in @query. The number
* of commands passed must be equal to @n_commands.
*
* Since: 0.10.23
*/
void
gst_navigation_query_set_commandsv (GstQuery * query, gint n_cmds,
GstNavigationCommand * cmds)
{
GValue list = { 0, };
GstStructure *structure;
gint i;
g_return_if_fail (GST_NAVIGATION_QUERY_HAS_TYPE (query, COMMANDS));
g_value_init (&list, GST_TYPE_LIST);
for (i = 0; i < n_cmds; i++) {
gst_query_list_add_command (&list, cmds[i]);
}
structure = gst_query_get_structure (query);
gst_structure_set_value (structure, "commands", &list);
g_value_unset (&list);
}
/**
* gst_navigation_query_parse_commands_length:
* @query: a #GstQuery
* @n_cmds: the number of commands in this query.
*
* Parse the number of commands in the #GstNavigation commands @query.
*
* Returns: %TRUE if the query could be successfully parsed. %FALSE if not.
* Since: 0.10.23
*/
gboolean
gst_navigation_query_parse_commands_length (GstQuery * query, guint * n_cmds)
{
GstStructure *structure;
const GValue *list;
g_return_val_if_fail (GST_NAVIGATION_QUERY_HAS_TYPE (query, COMMANDS), FALSE);
if (n_cmds == NULL)
return TRUE;
structure = gst_query_get_structure (query);
list = gst_structure_get_value (structure, "commands");
if (list == NULL)
*n_cmds = 0;
else
*n_cmds = gst_value_list_get_size (list);
return TRUE;
}
/**
* gst_query_parse_latency:
* @query: a #GstQuery
* @live: storage for live or NULL
* @min_latency: the storage for the min latency or NULL
* @max_latency: the storage for the max latency or NULL
*
* Parse a latency query answer.
*
* Since: 0.10.12
*/
void
gst_query_parse_latency (GstQuery * query, gboolean * live,
GstClockTime * min_latency, GstClockTime * max_latency)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_LATENCY);
structure = gst_query_get_structure (query);
if (live)
*live =
g_value_get_boolean (gst_structure_id_get_value (structure,
GST_QUARK (LIVE)));
if (min_latency)
*min_latency = g_value_get_uint64 (gst_structure_id_get_value (structure,
GST_QUARK (MIN_LATENCY)));
if (max_latency)
*max_latency = g_value_get_uint64 (gst_structure_id_get_value (structure,
GST_QUARK (MAX_LATENCY)));
}
/**
* gst_navigation_query_parse_angles:
* @query: a #GstQuery
* @cur_angle: Pointer to a #guint into which to store the currently selected
* angle value from the query, or NULL
* @n_angles: Pointer to a #guint into which to store the number of angles
* value from the query, or NULL
*
* Parse the current angle number in the #GstNavigation angles @query into the
* #guint pointed to by the @cur_angle variable, and the number of available
* angles into the #guint pointed to by the @n_angles variable.
*
* Returns: %TRUE if the query could be successfully parsed. %FALSE if not.
* Since: 0.10.23
*/
gboolean
gst_navigation_query_parse_angles (GstQuery * query, guint * cur_angle,
guint * n_angles)
{
GstStructure *structure;
gboolean ret = TRUE;
g_return_val_if_fail (GST_NAVIGATION_QUERY_HAS_TYPE (query, ANGLES), FALSE);
structure = gst_query_get_structure (query);
if (cur_angle)
ret &= gst_structure_get_uint (structure, "angle", cur_angle);
if (n_angles)
ret &= gst_structure_get_uint (structure, "angles", n_angles);
WARN_IF_FAIL (ret, "Couldn't extract details from angles query");
return ret;
}
/**
* gst_query_parse_formats_nth:
* @query: a #GstQuery
* @nth: the nth format to retrieve.
* @format: a pointer to store the nth format
*
* Parse the format query and retrieve the @nth format from it into
* @format. If the list contains less elements than @nth, @format will be
* set to GST_FORMAT_UNDEFINED.
*
* Since: 0.10.4
*/
void
gst_query_parse_formats_nth (GstQuery * query, guint nth, GstFormat * format)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_FORMATS);
if (format) {
const GValue *list;
structure = gst_query_get_structure (query);
list = gst_structure_get_value (structure, "formats");
if (list == NULL) {
*format = GST_FORMAT_UNDEFINED;
} else {
if (nth < gst_value_list_get_size (list)) {
*format = g_value_get_enum (gst_value_list_get_value (list, nth));
} else
*format = GST_FORMAT_UNDEFINED;
}
}
}
/**
* gst_query_parse_seeking:
* @query: a GST_QUERY_SEEKING type query #GstQuery
* @format: the format to set for the @segment_start and @segment_end values
* @seekable: the seekable flag to set
* @segment_start: the segment_start to set
* @segment_end: the segment_end to set
*
* Parse a seeking query, writing the format into @format, and
* other results into the passed parameters, if the respective parameters
* are non-NULL
*/
void
gst_query_parse_seeking (GstQuery * query, GstFormat * format,
gboolean * seekable, gint64 * segment_start, gint64 * segment_end)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_SEEKING);
structure = gst_query_get_structure (query);
if (format)
*format = g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (FORMAT)));
if (seekable)
*seekable = g_value_get_boolean (gst_structure_id_get_value (structure,
GST_QUARK (SEEKABLE)));
if (segment_start)
*segment_start = g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (SEGMENT_START)));
if (segment_end)
*segment_end = g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (SEGMENT_END)));
}
/**
* gst_query_parse_segment:
* @query: a #GstQuery
* @rate: the storage for the rate of the segment, or NULL
* @format: the storage for the #GstFormat of the values, or NULL
* @start_value: the storage for the start value, or NULL
* @stop_value: the storage for the stop value, or NULL
*
* Parse a segment query answer. Any of @rate, @format, @start_value, and
* @stop_value may be NULL, which will cause this value to be omitted.
*
* See gst_query_set_segment() for an explanation of the function arguments.
*/
void
gst_query_parse_segment (GstQuery * query, gdouble * rate, GstFormat * format,
gint64 * start_value, gint64 * stop_value)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_SEGMENT);
structure = gst_query_get_structure (query);
if (rate)
*rate = g_value_get_double (gst_structure_id_get_value (structure,
GST_QUARK (RATE)));
if (format)
*format = g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (FORMAT)));
if (start_value)
*start_value = g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (START_VALUE)));
if (stop_value)
*stop_value = g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (STOP_VALUE)));
}
static gboolean
gst_glimage_sink_query (GstElement * element, GstQuery * query)
{
GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (element);
gboolean res = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CUSTOM:
{
GstStructure *structure = gst_query_get_structure (query);
gst_structure_set (structure, "gstgldisplay", G_TYPE_POINTER,
glimage_sink->display, NULL);
res = GST_ELEMENT_CLASS (parent_class)->query (element, query);
break;
}
default:
res = GST_ELEMENT_CLASS (parent_class)->query (element, query);
break;
}
return res;
}
/**
* gst_query_parse_convert:
* @query: a #GstQuery
* @src_format: the storage for the #GstFormat of the source value, or NULL
* @src_value: the storage for the source value, or NULL
* @dest_format: the storage for the #GstFormat of the destination value, or NULL
* @dest_value: the storage for the destination value, or NULL
*
* Parse a convert query answer. Any of @src_format, @src_value, @dest_format,
* and @dest_value may be NULL, in which case that value is omitted.
*/
void
gst_query_parse_convert (GstQuery * query, GstFormat * src_format,
gint64 * src_value, GstFormat * dest_format, gint64 * dest_value)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_CONVERT);
structure = gst_query_get_structure (query);
if (src_format)
*src_format = g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (SRC_FORMAT)));
if (src_value)
*src_value = g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (SRC_VALUE)));
if (dest_format)
*dest_format = g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (DEST_FORMAT)));
if (dest_value)
*dest_value = g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (DEST_VALUE)));
}
/**
* gst_query_parse_buffering_range:
* @query: a GST_QUERY_SEEKING type query #GstQuery
* @format: the format to set for the @segment_start and @segment_end values
* @start: the start to set
* @stop: the stop to set
* @estimated_total: estimated total amount of download time
*
* Parse an available query, writing the format into @format, and
* other results into the passed parameters, if the respective parameters
* are non-NULL
*
* Since: 0.10.20
*/
void
gst_query_parse_buffering_range (GstQuery * query, GstFormat * format,
gint64 * start, gint64 * stop, gint64 * estimated_total)
{
GstStructure *structure;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_BUFFERING);
structure = gst_query_get_structure (query);
if (format)
*format = g_value_get_enum (gst_structure_id_get_value (structure,
GST_QUARK (FORMAT)));
if (start)
*start = g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (START_VALUE)));
if (stop)
*stop = g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (STOP_VALUE)));
if (estimated_total)
*estimated_total =
g_value_get_int64 (gst_structure_id_get_value (structure,
GST_QUARK (ESTIMATED_TOTAL)));
}
EXPORT_C
#endif
gboolean
gst_navigation_query_parse_angles (GstQuery * query, guint * cur_angle,
guint * n_angles)
{
GstStructure *structure;
g_return_val_if_fail (GST_NAVIGATION_QUERY_HAS_TYPE (query, ANGLES), FALSE);
structure = gst_query_get_structure (query);
if (cur_angle)
g_return_val_if_fail (gst_structure_get_uint (structure,
"angle", cur_angle), FALSE);
if (n_angles)
g_return_val_if_fail (gst_structure_get_uint (structure,
"angles", n_angles), FALSE);
return TRUE;
}
/**
* gst_query_set_formats:
* @query: a #GstQuery
* @n_formats: the number of formats to set.
* @...: A number of @GstFormats equal to @n_formats.
*
* Set the formats query result fields in @query. The number of formats passed
* must be equal to @n_formats.
*/
void
gst_query_set_formats (GstQuery * query, gint n_formats, ...)
{
va_list ap;
GValue list = { 0, };
GstStructure *structure;
gint i;
g_return_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_FORMATS);
g_value_init (&list, GST_TYPE_LIST);
va_start (ap, n_formats);
for (i = 0; i < n_formats; i++) {
gst_query_list_add_format (&list, va_arg (ap, GstFormat));
}
va_end (ap);
structure = gst_query_get_structure (query);
gst_structure_set_value (structure, "formats", &list);
g_value_unset (&list);
}