FCL/sf/mw/gstreamer: comparison gstreamer

equal deleted inserted replaced

-:567bb019e3e3
+:7e817e7e631c
 #include "gstinfo.h"
 #include "gstevent.h"
 #include "gstenumtypes.h"
 #include "gstutils.h"
-#include "gstquark.h"
+static void gst_event_init (GTypeInstance * instance, gpointer g_class);
-#define GST_EVENT_SEQNUM(e) ((GstEvent*)e)->abidata.seqnum
+static void gst_event_class_init (gpointer g_class, gpointer class_data);
 static void gst_event_finalize (GstEvent * event);
 static GstEvent *_gst_event_copy (GstEvent * event);
 static GstMiniObjectClass *parent_class = NULL;
 #ifdef __SYMBIAN32__
 ret = type & ((1 << GST_EVENT_TYPE_SHIFT) - 1);
 return ret;
 }
+#ifdef __SYMBIAN32__
-#define _do_init \
+EXPORT_C
-{ \
+#endif
-gint i; \
-\
-for (i = 0; event_quarks[i].name; i++) { \
+GType
-event_quarks[i].quark = g_quark_from_static_string (event_quarks[i].name); \
+gst_event_get_type (void)
-} \
+{
-}
+static GType _gst_event_type = 0;
+int i;
-G_DEFINE_TYPE_WITH_CODE (GstEvent, gst_event, GST_TYPE_MINI_OBJECT, _do_init);
+if (G_UNLIKELY (_gst_event_type == 0)) {
+static const GTypeInfo event_info = {
+sizeof (GstEventClass),
+NULL,
+NULL,
+gst_event_class_init,
+NULL,
+NULL,
+sizeof (GstEvent),
+0,
+gst_event_init,
+NULL
+};
+_gst_event_type = g_type_register_static (GST_TYPE_MINI_OBJECT,
+"GstEvent", &event_info, 0);
+for (i = 0; event_quarks[i].name; i++) {
+event_quarks[i].quark = g_quark_from_static_string (event_quarks[i].name);
+}
+}
+return _gst_event_type;
+}
 static void
-gst_event_class_init (GstEventClass * klass)
+gst_event_class_init (gpointer g_class, gpointer class_data)
 {
-parent_class = g_type_class_peek_parent (klass);
+GstEventClass *event_class = GST_EVENT_CLASS (g_class);
-klass->mini_object_class.copy = (GstMiniObjectCopyFunction) _gst_event_copy;
+parent_class = g_type_class_peek_parent (g_class);
-klass->mini_object_class.finalize =
+event_class->mini_object_class.copy =
+(GstMiniObjectCopyFunction) _gst_event_copy;
+event_class->mini_object_class.finalize =
 (GstMiniObjectFinalizeFunction) gst_event_finalize;
 }
 static void
-gst_event_init (GstEvent * event)
+gst_event_init (GTypeInstance * instance, gpointer g_class)
 {
+GstEvent *event;
+event = GST_EVENT (instance);
 GST_EVENT_TIMESTAMP (event) = GST_CLOCK_TIME_NONE;
 }
 static void
 gst_event_finalize (GstEvent * event)
 if (event->structure) {
 gst_structure_set_parent_refcount (event->structure, NULL);
 gst_structure_free (event->structure);
 }
-/*   GST_MINI_OBJECT_CLASS (parent_class)->finalize (GST_MINI_OBJECT (event)); */
+GST_MINI_OBJECT_CLASS (parent_class)->finalize (GST_MINI_OBJECT (event));
 }
 static GstEvent *
 _gst_event_copy (GstEvent * event)
 {
 copy = (GstEvent *) gst_mini_object_new (GST_TYPE_EVENT);
 GST_EVENT_TYPE (copy) = GST_EVENT_TYPE (event);
 GST_EVENT_TIMESTAMP (copy) = GST_EVENT_TIMESTAMP (event);
-GST_EVENT_SEQNUM (copy) = GST_EVENT_SEQNUM (event);
 if (GST_EVENT_SRC (event)) {
 GST_EVENT_SRC (copy) = gst_object_ref (GST_EVENT_SRC (event));
 }
 if (event->structure) {
 gst_event_type_get_name (type), type);
 event->type = type;
 event->src = NULL;
 event->structure = NULL;
-GST_EVENT_SEQNUM (event) = gst_util_seqnum_next ();
 return event;
 }
 /**
 gst_event_get_structure (GstEvent * event)
 {
 g_return_val_if_fail (GST_IS_EVENT (event), NULL);
 return event->structure;
-}
-/**
-* gst_event_has_name:
-* @event: The #GstEvent.
-* @name: name to check
-*
-* Checks if @event has the given @name. This function is usually used to
-* check the name of a custom event.
-*
-* Returns: %TRUE if @name matches the name of the event structure.
-*
-* Since: 0.10.20
-*/
-#ifdef __SYMBIAN32__
-EXPORT_C
-#endif
-gboolean
-gst_event_has_name (GstEvent * event, const gchar * name)
-{
-g_return_val_if_fail (GST_IS_EVENT (event), FALSE);
-if (event->structure == NULL)
-return FALSE;
-return gst_structure_has_name (event->structure, name);
-}
-/**
-* gst_event_get_seqnum:
-* @event: A #GstEvent.
-*
-* Retrieve the sequence number of a event.
-*
-* Events have ever-incrementing sequence numbers, which may also be set
-* explicitly via gst_event_set_seqnum(). Sequence numbers are typically used to
-* indicate that a event corresponds to some other set of events or messages,
-* for example an EOS event corresponding to a SEEK event. It is considered good
-* practice to make this correspondence when possible, though it is not
-* required.
-*
-* Note that events and messages share the same sequence number incrementor;
-* two events or messages will never not have the same sequence number unless
-* that correspondence was made explicitly.
-*
-* Returns: The event's sequence number.
-*
-* MT safe.
-*
-* Since: 0.10.22
-*/
-#ifdef __SYMBIAN32__
-EXPORT_C
-#endif
-guint32
-gst_event_get_seqnum (GstEvent * event)
-{
-g_return_val_if_fail (GST_IS_EVENT (event), -1);
-return GST_EVENT_SEQNUM (event);
-}
-/**
-* gst_event_set_seqnum:
-* @event: A #GstEvent.
-* @seqnum: A sequence number.
-*
-* Set the sequence number of a event.
-*
-* This function might be called by the creator of a event to indicate that the
-* event relates to other events or messages. See gst_event_get_seqnum() for
-* more information.
-*
-* MT safe.
-*
-* Since: 0.10.22
-*/
-#ifdef __SYMBIAN32__
-EXPORT_C
-#endif
-void
-gst_event_set_seqnum (GstEvent * event, guint32 seqnum)
-{
-g_return_if_fail (GST_IS_EVENT (event));
-GST_EVENT_SEQNUM (event) = seqnum;
 }
 /**
 * gst_event_new_flush_start:
 *
 * Allocate a new newsegment event with the given format/values triplets.
 *
 * The newsegment event marks the range of buffers to be processed. All
 * data not within the segment range is not to be processed. This can be
 * used intelligently by plugins to apply more efficient methods of skipping
-* unneeded data. The valid range is expressed with the @start and @stop
+* unneeded data.
-* values.
 *
 * The position value of the segment is used in conjunction with the start
 * value to convert the buffer timestamps into the stream time. This is
 * usually done in sinks to report the current stream_time.
 * @position represents the stream_time of a buffer carrying a timestamp of
 * Since: 0.10.6
 */
 #ifdef __SYMBIAN32__
 EXPORT_C
 #endif
 GstEvent *
 gst_event_new_new_segment_full (gboolean update, gdouble rate,
 gdouble applied_rate, GstFormat format, gint64 start, gint64 stop,
 gint64 position)
 {
-GstEvent *event;
-GstStructure *structure;
 g_return_val_if_fail (rate != 0.0, NULL);
 g_return_val_if_fail (applied_rate != 0.0, NULL);
 if (format == GST_FORMAT_TIME) {
 GST_CAT_INFO (GST_CAT_EVENT,
 ", position %" GST_TIME_FORMAT,
 update, rate, GST_TIME_ARGS (start),
 GST_TIME_ARGS (stop), GST_TIME_ARGS (position));
 } else {
 GST_CAT_INFO (GST_CAT_EVENT,
-"creating newsegment update %d, rate %lf, format %s, "
+"creating newsegment update %d, rate %lf, format %d, "
 "start %" G_GINT64_FORMAT ", stop %" G_GINT64_FORMAT ", position %"
-G_GINT64_FORMAT, update, rate, gst_format_get_name (format), start,
+G_GINT64_FORMAT, update, rate, format, start, stop, position);
-stop, position);
 }
 g_return_val_if_fail (position != -1, NULL);
 g_return_val_if_fail (start != -1, NULL);
 if (stop != -1)
 g_return_val_if_fail (start <= stop, NULL);
-structure = gst_structure_id_new (GST_QUARK (EVENT_NEWSEGMENT),
+return gst_event_new_custom (GST_EVENT_NEWSEGMENT,
-GST_QUARK (UPDATE), G_TYPE_BOOLEAN, update,
+gst_structure_new ("GstEventNewsegment",
-GST_QUARK (RATE), G_TYPE_DOUBLE, rate,
+"update", G_TYPE_BOOLEAN, update,
-GST_QUARK (APPLIED_RATE), G_TYPE_DOUBLE, applied_rate,
+"rate", G_TYPE_DOUBLE, rate,
-GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
+"applied_rate", G_TYPE_DOUBLE, applied_rate,
-GST_QUARK (START), G_TYPE_INT64, start,
+"format", GST_TYPE_FORMAT, format,
-GST_QUARK (STOP), G_TYPE_INT64, stop,
+"start", G_TYPE_INT64, start,
-GST_QUARK (POSITION), G_TYPE_INT64, position, NULL);
+"stop", G_TYPE_INT64, stop,
-event = gst_event_new_custom (GST_EVENT_NEWSEGMENT, structure);
+"position", G_TYPE_INT64, position, NULL));
-return event;
 }
 /**
 * gst_event_parse_new_segment_full:
 * @event: The event to query
 g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT);
 structure = gst_event_get_structure (event);
 if (G_LIKELY (update))
 *update =
-g_value_get_boolean (gst_structure_id_get_value (structure,
+g_value_get_boolean (gst_structure_get_value (structure, "update"));
-GST_QUARK (UPDATE)));
 if (G_LIKELY (rate))
-*rate =
+*rate = g_value_get_double (gst_structure_get_value (structure, "rate"));
-g_value_get_double (gst_structure_id_get_value (structure,
-GST_QUARK (RATE)));
 if (G_LIKELY (applied_rate))
 *applied_rate =
-g_value_get_double (gst_structure_id_get_value (structure,
+g_value_get_double (gst_structure_get_value (structure,
-GST_QUARK (APPLIED_RATE)));
+"applied_rate"));
 if (G_LIKELY (format))
-*format =
+*format = g_value_get_enum (gst_structure_get_value (structure, "format"));
-g_value_get_enum (gst_structure_id_get_value (structure,
-GST_QUARK (FORMAT)));
 if (G_LIKELY (start))
-*start =
+*start = g_value_get_int64 (gst_structure_get_value (structure, "start"));
-g_value_get_int64 (gst_structure_id_get_value (structure,
-GST_QUARK (START)));
 if (G_LIKELY (stop))
-*stop =
+*stop = g_value_get_int64 (gst_structure_get_value (structure, "stop"));
-g_value_get_int64 (gst_structure_id_get_value (structure,
-GST_QUARK (STOP)));
 if (G_LIKELY (position))
 *position =
-g_value_get_int64 (gst_structure_id_get_value (structure,
+g_value_get_int64 (gst_structure_get_value (structure, "position"));
-GST_QUARK (POSITION)));
 }
 /**
 * gst_event_new_tag:
-* @taglist: metadata list. The event will take ownership of @taglist.
+* @taglist: metadata list
 *
 * Generates a metadata tag event from the given @taglist.
 *
 * Returns: a new #GstEvent
 */
 GstEvent *
 gst_event_new_buffer_size (GstFormat format, gint64 minsize,
 gint64 maxsize, gboolean async)
 {
-GstEvent *event;
-GstStructure *structure;
 GST_CAT_INFO (GST_CAT_EVENT,
-"creating buffersize format %s, minsize %" G_GINT64_FORMAT
+"creating buffersize format %d, minsize %" G_GINT64_FORMAT
-", maxsize %" G_GINT64_FORMAT ", async %d", gst_format_get_name (format),
+", maxsize %" G_GINT64_FORMAT ", async %d", format,
 minsize, maxsize, async);
-structure = gst_structure_id_new (GST_QUARK (EVENT_BUFFER_SIZE),
+return gst_event_new_custom (GST_EVENT_BUFFERSIZE,
-GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
+gst_structure_new ("GstEventBufferSize",
-GST_QUARK (MINSIZE), G_TYPE_INT64, minsize,
+"format", GST_TYPE_FORMAT, format,
-GST_QUARK (MAXSIZE), G_TYPE_INT64, maxsize,
+"minsize", G_TYPE_INT64, minsize,
-GST_QUARK (ASYNC), G_TYPE_BOOLEAN, async, NULL);
+"maxsize", G_TYPE_INT64, maxsize,
-event = gst_event_new_custom (GST_EVENT_BUFFERSIZE, structure);
+"async", G_TYPE_BOOLEAN, async, NULL));
-return event;
 }
 /**
 * gst_event_parse_buffer_size:
 * @event: The event to query
 g_return_if_fail (GST_IS_EVENT (event));
 g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_BUFFERSIZE);
 structure = gst_event_get_structure (event);
 if (format)
-*format =
+*format = g_value_get_enum (gst_structure_get_value (structure, "format"));
-g_value_get_enum (gst_structure_id_get_value (structure,
-GST_QUARK (FORMAT)));
 if (minsize)
 *minsize =
-g_value_get_int64 (gst_structure_id_get_value (structure,
+g_value_get_int64 (gst_structure_get_value (structure, "minsize"));
-GST_QUARK (MINSIZE)));
 if (maxsize)
 *maxsize =
-g_value_get_int64 (gst_structure_id_get_value (structure,
+g_value_get_int64 (gst_structure_get_value (structure, "maxsize"));
-GST_QUARK (MAXSIZE)));
 if (async)
-*async =
+*async = g_value_get_boolean (gst_structure_get_value (structure, "async"));
-g_value_get_boolean (gst_structure_id_get_value (structure,
-GST_QUARK (ASYNC)));
 }
 /**
 * gst_event_new_qos:
 * @proportion: the proportion of the qos message
 * increasing value.
 *
 * The upstream element can use the @diff and @timestamp values to decide
 * whether to process more buffers. For possitive @diff, all buffers with
 * timestamp <= @timestamp + @diff will certainly arrive late in the sink
-* as well. A (negative) @diff value so that @timestamp + @diff would yield a
+* as well.
-* result smaller than 0 is not allowed.
 *
 * The application can use general event probes to intercept the QoS
 * event and implement custom application specific QoS handling.
 *
 * Returns: A new QOS event.
 GstEvent *
 gst_event_new_qos (gdouble proportion, GstClockTimeDiff diff,
 GstClockTime timestamp)
 {
-GstEvent *event;
-GstStructure *structure;
-/* diff must be positive or timestamp + diff must be positive */
-g_return_val_if_fail (diff >= 0 || -diff <= timestamp, NULL);
 GST_CAT_INFO (GST_CAT_EVENT,
 "creating qos proportion %lf, diff %" G_GINT64_FORMAT
 ", timestamp %" GST_TIME_FORMAT, proportion,
 diff, GST_TIME_ARGS (timestamp));
-structure = gst_structure_id_new (GST_QUARK (EVENT_QOS),
+return gst_event_new_custom (GST_EVENT_QOS,
-GST_QUARK (PROPORTION), G_TYPE_DOUBLE, proportion,
+gst_structure_new ("GstEventQOS",
-GST_QUARK (DIFF), G_TYPE_INT64, diff,
+"proportion", G_TYPE_DOUBLE, proportion,
-GST_QUARK (TIMESTAMP), G_TYPE_UINT64, timestamp, NULL);
+"diff", G_TYPE_INT64, diff,
-event = gst_event_new_custom (GST_EVENT_QOS, structure);
+"timestamp", G_TYPE_UINT64, timestamp, NULL));
-return event;
 }
 /**
 * gst_event_parse_qos:
 * @event: The event to query
 g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_QOS);
 structure = gst_event_get_structure (event);
 if (proportion)
 *proportion =
-g_value_get_double (gst_structure_id_get_value (structure,
+g_value_get_double (gst_structure_get_value (structure, "proportion"));
-GST_QUARK (PROPORTION)));
 if (diff)
-*diff =
+*diff = g_value_get_int64 (gst_structure_get_value (structure, "diff"));
-g_value_get_int64 (gst_structure_id_get_value (structure,
-GST_QUARK (DIFF)));
 if (timestamp)
 *timestamp =
-g_value_get_uint64 (gst_structure_id_get_value (structure,
+g_value_get_uint64 (gst_structure_get_value (structure, "timestamp"));
-GST_QUARK (TIMESTAMP)));
 }
 /**
 * gst_event_new_seek:
 * @rate: The new playback rate
 * A pipeline has a default playback segment configured with a start
 * position of 0, a stop position of -1 and a rate of 1.0. The currently
 * configured playback segment can be queried with #GST_QUERY_SEGMENT.
 *
 * @start_type and @stop_type specify how to adjust the currently configured
-* start and stop fields in playback segment. Adjustments can be made relative
+* start and stop fields in @segment. Adjustments can be made relative or
-* or absolute to the last configured values. A type of #GST_SEEK_TYPE_NONE
+* absolute to the last configured values. A type of #GST_SEEK_TYPE_NONE means
-* means that the position should not be updated.
+* that the position should not be updated.
 *
 * When the rate is positive and @start has been updated, playback will start
 * from the newly configured start position.
 *
 * For negative rates, playback will start from the newly configured stop
 * -1 for negative rates.
 *
 * It is not possible to seek relative to the current playback position, to do
 * this, PAUSE the pipeline, query the current playback position with
 * #GST_QUERY_POSITION and update the playback segment current position with a
 * #GST_SEEK_TYPE_SET to the desired position.
 *
 * Returns: A new seek event.
 */
+#ifdef __SYMBIAN32__
-#ifdef __SYMBIAN32__
+EXPORT_C
-EXPORT_C
+#endif
-#endif
 GstEvent *
 gst_event_new_seek (gdouble rate, GstFormat format, GstSeekFlags flags,
 GstSeekType start_type, gint64 start, GstSeekType stop_type, gint64 stop)
 {
-GstEvent *event;
-GstStructure *structure;
 g_return_val_if_fail (rate != 0.0, NULL);
 if (format == GST_FORMAT_TIME) {
 GST_CAT_INFO (GST_CAT_EVENT,
 "creating seek rate %lf, format TIME, flags %d, "
 "stop_type %d, stop %" GST_TIME_FORMAT,
 rate, flags, start_type, GST_TIME_ARGS (start),
 stop_type, GST_TIME_ARGS (stop));
 } else {
 GST_CAT_INFO (GST_CAT_EVENT,
-"creating seek rate %lf, format %s, flags %d, "
+"creating seek rate %lf, format %d, flags %d, "
 "start_type %d, start %" G_GINT64_FORMAT ", "
 "stop_type %d, stop %" G_GINT64_FORMAT,
-rate, gst_format_get_name (format), flags, start_type, start, stop_type,
+rate, format, flags, start_type, start, stop_type, stop);
-stop);
 }
-structure = gst_structure_id_new (GST_QUARK (EVENT_SEEK),
+return gst_event_new_custom (GST_EVENT_SEEK,
-GST_QUARK (RATE), G_TYPE_DOUBLE, rate,
+gst_structure_new ("GstEventSeek", "rate", G_TYPE_DOUBLE, rate,
-GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
+"format", GST_TYPE_FORMAT, format,
-GST_QUARK (FLAGS), GST_TYPE_SEEK_FLAGS, flags,
+"flags", GST_TYPE_SEEK_FLAGS, flags,
-GST_QUARK (CUR_TYPE), GST_TYPE_SEEK_TYPE, start_type,
+"cur_type", GST_TYPE_SEEK_TYPE, start_type,
-GST_QUARK (CUR), G_TYPE_INT64, start,
+"cur", G_TYPE_INT64, start,
-GST_QUARK (STOP_TYPE), GST_TYPE_SEEK_TYPE, stop_type,
+"stop_type", GST_TYPE_SEEK_TYPE, stop_type,
-GST_QUARK (STOP), G_TYPE_INT64, stop, NULL);
+"stop", G_TYPE_INT64, stop, NULL));
-event = gst_event_new_custom (GST_EVENT_SEEK, structure);
-return event;
 }
 /**
 * gst_event_parse_seek:
 * @event: a seek event
 g_return_if_fail (GST_IS_EVENT (event));
 g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_SEEK);
 structure = gst_event_get_structure (event);
 if (rate)
-*rate =
+*rate = g_value_get_double (gst_structure_get_value (structure, "rate"));
-g_value_get_double (gst_structure_id_get_value (structure,
-GST_QUARK (RATE)));
 if (format)
-*format =
+*format = g_value_get_enum (gst_structure_get_value (structure, "format"));
-g_value_get_enum (gst_structure_id_get_value (structure,
-GST_QUARK (FORMAT)));
 if (flags)
-*flags =
+*flags = g_value_get_flags (gst_structure_get_value (structure, "flags"));
-g_value_get_flags (gst_structure_id_get_value (structure,
-GST_QUARK (FLAGS)));
 if (start_type)
 *start_type =
-g_value_get_enum (gst_structure_id_get_value (structure,
+g_value_get_enum (gst_structure_get_value (structure, "cur_type"));
-GST_QUARK (CUR_TYPE)));
 if (start)
-*start =
+*start = g_value_get_int64 (gst_structure_get_value (structure, "cur"));
-g_value_get_int64 (gst_structure_id_get_value (structure,
-GST_QUARK (CUR)));
 if (stop_type)
 *stop_type =
-g_value_get_enum (gst_structure_id_get_value (structure,
+g_value_get_enum (gst_structure_get_value (structure, "stop_type"));
-GST_QUARK (STOP_TYPE)));
 if (stop)
-*stop =
+*stop = g_value_get_int64 (gst_structure_get_value (structure, "stop"));
-g_value_get_int64 (gst_structure_id_get_value (structure,
-GST_QUARK (STOP)));
 }
 /**
 * gst_event_new_navigation:
-* @structure: description of the event. The event will take ownership of the
+* @structure: description of the event
-*     structure.
 *
 * Create a new navigation event from the given description.
 *
 * Returns: a new #GstEvent
 */
 * gst_event_new_latency:
 * @latency: the new latency value
 *
 * Create a new latency event. The event is sent upstream from the sinks and
 * notifies elements that they should add an additional @latency to the
-* running time before synchronising against the clock.
+* timestamps before synchronising against the clock.
 *
 * The latency is mostly used in live sinks and is always expressed in
 * the time format.
 *
 * Returns: a new #GstEvent
 #endif
 GstEvent *
 gst_event_new_latency (GstClockTime latency)
 {
-GstEvent *event;
-GstStructure *structure;
 GST_CAT_INFO (GST_CAT_EVENT,
 "creating latency event %" GST_TIME_FORMAT, GST_TIME_ARGS (latency));
-structure = gst_structure_id_new (GST_QUARK (EVENT_LATENCY),
+return gst_event_new_custom (GST_EVENT_LATENCY,
-GST_QUARK (LATENCY), G_TYPE_UINT64, latency, NULL);
+gst_structure_new ("GstEventLatency",
-event = gst_event_new_custom (GST_EVENT_LATENCY, structure);
+"latency", G_TYPE_UINT64, latency, NULL));
-return event;
 }
 /**
 * gst_event_parse_latency:
 * @event: The event to query
 g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_LATENCY);
 structure = gst_event_get_structure (event);
 if (latency)
 *latency =
-g_value_get_uint64 (gst_structure_id_get_value (structure,
+g_value_get_uint64 (gst_structure_get_value (structure, "latency"));
-GST_QUARK (LATENCY)));
+}
-}
-/**
-* gst_event_new_step:
-* @format: the format of @amount
-* @amount: the amount of data to step
-* @rate: the step rate
-* @flush: flushing steps
-* @intermediate: intermediate steps
-*
-* Create a new step event. The purpose of the step event is to instruct a sink
-* to skip @amount (expressed in @format) of media. It can be used to implement
-* stepping through the video frame by frame or for doing fast trick modes.
-*
-* A rate of <= 0.0 is not allowed, pause the pipeline or reverse the playback
-* direction of the pipeline to get the same effect.
-*
-* The @flush flag will clear any pending data in the pipeline before starting
-* the step operation.
-*
-* The @intermediate flag instructs the pipeline that this step operation is
-* part of a larger step operation.
-*
-* Returns: a new #GstEvent
-*
-* Since: 0.10.24
-*/
-#ifdef __SYMBIAN32__
-EXPORT_C
-#endif
-GstEvent *
-gst_event_new_step (GstFormat format, guint64 amount, gdouble rate,
-gboolean flush, gboolean intermediate)
-{
-GstEvent *event;
-GstStructure *structure;
-g_return_val_if_fail (rate > 0.0, NULL);
-GST_CAT_INFO (GST_CAT_EVENT, "creating step event");
-structure = gst_structure_id_new (GST_QUARK (EVENT_STEP),
-GST_QUARK (FORMAT), GST_TYPE_FORMAT, format,
-GST_QUARK (AMOUNT), G_TYPE_UINT64, amount,
-GST_QUARK (RATE), G_TYPE_DOUBLE, rate,
-GST_QUARK (FLUSH), G_TYPE_BOOLEAN, flush,
-GST_QUARK (INTERMEDIATE), G_TYPE_BOOLEAN, intermediate, NULL);
-event = gst_event_new_custom (GST_EVENT_STEP, structure);
-return event;
-}
-/**
-* gst_event_parse_step:
-* @event: The event to query
-* @format: A pointer to store the format in.
-* @amount: A pointer to store the amount in.
-* @rate: A pointer to store the rate in.
-* @flush: A pointer to store the flush boolean in.
-* @intermediate: A pointer to store the intermediate boolean in.
-*
-* Parse the step event.
-*
-* Since: 0.10.24
-*/
-#ifdef __SYMBIAN32__
-EXPORT_C
-#endif
-void
-gst_event_parse_step (GstEvent * event, GstFormat * format, guint64 * amount,
-gdouble * rate, gboolean * flush, gboolean * intermediate)
-{
-const GstStructure *structure;
-g_return_if_fail (GST_IS_EVENT (event));
-g_return_if_fail (GST_EVENT_TYPE (event) == GST_EVENT_STEP);
-structure = gst_event_get_structure (event);
-if (format)
-*format = g_value_get_enum (gst_structure_id_get_value (structure,
-GST_QUARK (FORMAT)));
-if (amount)
-*amount = g_value_get_uint64 (gst_structure_id_get_value (structure,
-GST_QUARK (AMOUNT)));
-if (rate)
-*rate = g_value_get_double (gst_structure_id_get_value (structure,
-GST_QUARK (RATE)));
-if (flush)
-*flush = g_value_get_boolean (gst_structure_id_get_value (structure,
-GST_QUARK (FLUSH)));
-if (intermediate)
-*intermediate = g_value_get_boolean (gst_structure_id_get_value (structure,
-GST_QUARK (INTERMEDIATE)));
-}

branch	RCL_3
changeset 30	7e817e7e631c
parent 29	567bb019e3e3