#include "ges-timeline-layer.h"
#include "ges.h"
-static void track_duration_cb (GstElement * track,
- GParamSpec * arg G_GNUC_UNUSED, GESTimeline * timeline);
+typedef struct _MoveContext MoveContext;
+
+static inline void init_movecontext (MoveContext * mv_ctx);
G_DEFINE_TYPE (GESTimeline, ges_timeline, GST_TYPE_BIN);
#define GES_TIMELINE_PENDINGOBJS_UNLOCK(timeline) \
(g_mutex_unlock(GES_TIMELINE_PENDINGOBJS_GET_LOCK (timeline)))
+/**
+ * The move context is used for the timeline editing modes functions in order to
+ * + Ripple / Roll / Slide / Move / Trim
+ *
+ * The context aims at avoiding to recalculate values/objects on each call of the
+ * editing functions.
+ */
+struct _MoveContext
+{
+ GESTimelineObject *obj;
+ GESEdge edge;
+ GESEditMode mode;
+
+ /* Ripple and Roll Objects */
+ GList *moving_tckobjs;
+
+ /* We use it as a set of TimelineObject to move between layers */
+ GHashTable *moving_tlobjs;
+ /* Min priority of the objects currently in moving_tlobjs */
+ guint min_move_layer;
+ /* Max priority of the objects currently in moving_tlobjs */
+ guint max_layer_prio;
+
+ /* Never trim so duration would becomes < 0 */
+ guint64 max_trim_pos;
+
+ /* fields to force/avoid new context */
+ /* Set to %TRUE when the track is doing updates of track objects
+ * properties so we don't end up always needing new move context */
+ gboolean ignore_needs_ctx;
+ gboolean needs_move_ctx;
+
+ /* Last snapping properties */
+ GESTrackObject *last_snaped1;
+ GESTrackObject *last_snaped2;
+ GstClockTime last_snap_ts;
+};
+
struct _GESTimelinePrivate
{
GList *layers; /* A list of GESTimelineLayer sorted by priority */
/* Whether we are changing state asynchronously or not */
gboolean async_pending;
+
+ /* Timeline edition modes and snapping management */
+ guint64 snapping_distance;
+
+ /* FIXME: Should we offer an API over those fields ?
+ * FIXME: Should other classes than subclasses of TrackSource also
+ * be tracked? */
+
+ /* Snapping fields */
+ GHashTable *by_start; /* {TrackSource: start} */
+ GHashTable *by_end; /* {TrackSource: end} */
+ GHashTable *by_object; /* {timecode: TrackSource} */
+ GSequence *starts_ends; /* Sorted list of starts/ends */
+ /* We keep 1 reference to our trackobject here */
+ GSequence *tracksources; /* TrackSource-s sorted by start/priorities */
+
+ MoveContext movecontext;
};
/* private structure to contain our track-related information */
{
PROP_0,
PROP_DURATION,
+ PROP_SNAPPING_DISTANCE,
PROP_LAST
};
LAYER_ADDED,
LAYER_REMOVED,
DISCOVERY_ERROR,
+ SNAPING_STARTED,
+ SNAPING_ENDED,
LAST_SIGNAL
};
case PROP_DURATION:
g_value_set_uint64 (value, timeline->priv->duration);
break;
+ case PROP_SNAPPING_DISTANCE:
+ g_value_set_uint64 (value, timeline->priv->snapping_distance);
+ break;
}
}
ges_timeline_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
+ GESTimeline *timeline = GES_TIMELINE (object);
+
switch (property_id) {
+ case PROP_SNAPPING_DISTANCE:
+ timeline->priv->snapping_distance = g_value_get_uint64 (value);
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
ges_timeline_remove_track (GES_TIMELINE (object), tr_priv->track);
}
+ g_hash_table_unref (priv->by_start);
+ g_hash_table_unref (priv->by_end);
+ g_hash_table_unref (priv->by_object);
+ g_sequence_free (priv->starts_ends);
+ g_sequence_free (priv->tracksources);
+
G_OBJECT_CLASS (ges_timeline_parent_class)->dispose (object);
}
object_class->finalize = ges_timeline_finalize;
/**
- * GESTimelineObject:duration
+ * GESTimeline:duration
*
* Current duration (in nanoseconds) of the #GESTimeline
- *
- * Default value: 0
*/
properties[PROP_DURATION] =
g_param_spec_uint64 ("duration", "Duration",
properties[PROP_DURATION]);
/**
+ * GESTimeline:snapping-distance
+ *
+ * Distance (in nanoseconds) from which a moving object will snap
+ * with it neighboors. 0 means no snapping.
+ */
+ properties[PROP_SNAPPING_DISTANCE] =
+ g_param_spec_uint64 ("snapping-distance", "Snapping distance",
+ "Distance from which moving an object will snap with neighboors", 0,
+ G_MAXUINT64, 0, G_PARAM_READWRITE);
+ g_object_class_install_property (object_class, PROP_SNAPPING_DISTANCE,
+ properties[PROP_SNAPPING_DISTANCE]);
+
+ /**
* GESTimeline::track-added
* @timeline: the #GESTimeline
* @track: the #GESTrack that was added to the timeline
/**
* GESTimeline::discovery-error:
+ * @timeline: the #GESTimeline
* @formatter: the #GESFormatter
* @source: The #GESTimelineFileSource that could not be discovered properly
* @error: (type GLib.Error): #GError, which will be non-NULL if an error
g_signal_new ("discovery-error", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST, 0, NULL, NULL, g_cclosure_marshal_generic,
G_TYPE_NONE, 2, GES_TYPE_TIMELINE_FILE_SOURCE, G_TYPE_ERROR);
+
+ /**
+ * GESTimeline::track-objects-snapping:
+ * @timeline: the #GESTimeline
+ * @obj1: the first #GESTrackObject that was snapping.
+ * @obj2: the second #GESTrackObject that was snapping.
+ * @position: the position where the two objects finally snapping.
+ *
+ * Will be emitted when the 2 #GESTrackObject first snapped
+ *
+ * Since: 0.10.XX
+ */
+ ges_timeline_signals[SNAPING_STARTED] =
+ g_signal_new ("snapping-started", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
+ G_TYPE_NONE, 3, GES_TYPE_TRACK_OBJECT, GES_TYPE_TRACK_OBJECT,
+ G_TYPE_UINT64);
+
+ /**
+ * GESTimeline::snapping-end:
+ * @timeline: the #GESTimeline
+ * @obj1: the first #GESTrackObject that was snapping.
+ * @obj2: the second #GESTrackObject that was snapping.
+ * @position: the position where the two objects finally snapping.
+ *
+ * Will be emitted when the 2 #GESTrackObject ended to snap
+ *
+ * Since: 0.10.XX
+ */
+ ges_timeline_signals[SNAPING_ENDED] =
+ g_signal_new ("snapping-ended", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
+ G_TYPE_NONE, 3, GES_TYPE_TRACK_OBJECT, GES_TYPE_TRACK_OBJECT,
+ G_TYPE_UINT64);
}
static void
ges_timeline_init (GESTimeline * self)
{
+ GESTimelinePrivate *priv;
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
GES_TYPE_TIMELINE, GESTimelinePrivate);
- self->priv->layers = NULL;
- self->priv->tracks = NULL;
- self->priv->duration = 0;
+ priv = self->priv;
+ priv->layers = NULL;
+ priv->tracks = NULL;
+ priv->duration = 0;
+ priv->snapping_distance = 0;
+
+ /* Move context initialization */
+ init_movecontext (&self->priv->movecontext);
+ priv->movecontext.ignore_needs_ctx = FALSE;
+
+ priv->by_start = g_hash_table_new (g_direct_hash, g_direct_equal);
+ priv->by_end = g_hash_table_new (g_direct_hash, g_direct_equal);
+ priv->by_object = g_hash_table_new (g_direct_hash, g_direct_equal);
+ priv->starts_ends = g_sequence_new (g_free);
+ priv->tracksources = g_sequence_new (g_object_unref);
- g_mutex_init (&self->priv->pendingobjects_lock);
+ g_mutex_init (&priv->pendingobjects_lock);
/* New discoverer with a 15s timeout */
- self->priv->discoverer = gst_discoverer_new (15 * GST_SECOND, NULL);
- g_signal_connect (self->priv->discoverer, "finished",
+ priv->discoverer = gst_discoverer_new (15 * GST_SECOND, NULL);
+ g_signal_connect (priv->discoverer, "finished",
G_CALLBACK (discoverer_finished_cb), self);
- g_signal_connect (self->priv->discoverer, "discovered",
+ g_signal_connect (priv->discoverer, "discovered",
G_CALLBACK (discoverer_discovered_cb), self);
- gst_discoverer_start (self->priv->discoverer);
+ gst_discoverer_start (priv->discoverer);
}
/* Private methods */
}
static gint
+objects_start_compare (GESTrackObject * a, GESTrackObject * b)
+{
+ if (a->start == b->start) {
+ if (a->priority < b->priority)
+ return -1;
+ if (a->priority > b->priority)
+ return 1;
+ return 0;
+ }
+ if (a->start < b->start)
+ return -1;
+ if (a->start > b->start)
+ return 1;
+ return 0;
+}
+
+static inline void
+sort_track_objects (GESTimeline * timeline)
+{
+ g_sequence_sort (timeline->priv->tracksources,
+ (GCompareDataFunc) objects_start_compare, NULL);
+}
+
+static gint
+compare_uint64 (guint64 * a, guint64 * b, gpointer user_data)
+{
+ if (*a > *b)
+ return 1;
+ else if (*a == *b)
+ return 0;
+ else
+ return -1;
+}
+
+static gint
custom_find_track (TrackPrivate * tr_priv, GESTrack * track)
{
if (tr_priv->track == track)
return -1;
}
+/* Look for the pointer passed as @value */
+static GSequenceIter *
+lookup_pointer_uint (GSequence * seq, guint64 * value)
+{
+ GSequenceIter *iter, *tmpiter;
+ guint64 *found, *tmpval;
+
+ iter = g_sequence_lookup (seq, value,
+ (GCompareDataFunc) compare_uint64, NULL);
+
+ found = g_sequence_get (iter);
+
+ /* We have the same pointer so we are all fine */
+ if (found == value)
+ return iter;
+
+ if (!g_sequence_iter_is_end (iter)) {
+ /* Looking frontward for the good pointer */
+ tmpiter = iter;
+ while ((tmpiter = g_sequence_iter_next (tmpiter))) {
+ if (g_sequence_iter_is_end (tmpiter))
+ break;
+
+ tmpval = g_sequence_get (tmpiter);
+ if (tmpval == value)
+ return tmpiter;
+ else if (*tmpval != *value)
+ break;
+ }
+ }
+
+ if (!g_sequence_iter_is_begin (iter)) {
+ /* Looking backward for the good pointer */
+ tmpiter = iter;
+ while ((tmpiter = g_sequence_iter_prev (tmpiter))) {
+ tmpval = g_sequence_get (tmpiter);
+ if (tmpval == value)
+ return tmpiter;
+ else if (*tmpval != *value || g_sequence_iter_is_begin (tmpiter))
+ break;
+ }
+ }
+
+ GST_ERROR ("Missing timecode %p %" GST_TIME_FORMAT
+ " this should never happen", value, GST_TIME_ARGS (*value));
+
+ return NULL;
+}
+
+static inline void
+sort_starts_ends_end (GESTimeline * timeline, GESTrackObject * obj)
+{
+ GSequenceIter *iter;
+
+ GESTimelinePrivate *priv = timeline->priv;
+ guint64 *end = g_hash_table_lookup (priv->by_end, obj);
+
+ iter = lookup_pointer_uint (priv->starts_ends, end);
+ *end = obj->start + obj->duration;
+
+ g_sequence_sort_changed (iter, (GCompareDataFunc) compare_uint64, NULL);
+}
+
+static inline void
+sort_starts_ends_start (GESTimeline * timeline, GESTrackObject * obj)
+{
+ GSequenceIter *iter;
+
+ GESTimelinePrivate *priv = timeline->priv;
+ guint64 *start = g_hash_table_lookup (priv->by_start, obj);
+
+ iter = lookup_pointer_uint (priv->starts_ends, start);
+ *start = obj->start;
+
+ g_sequence_sort_changed (iter, (GCompareDataFunc) compare_uint64, NULL);
+}
+
+static inline void
+resort_all_starts_ends (GESTimeline * timeline)
+{
+ GSequenceIter *iter;
+ GESTrackObject *tckobj;
+ guint64 *start, *end;
+
+ GESTimelinePrivate *priv = timeline->priv;
+
+ for (iter = g_sequence_get_begin_iter (priv->tracksources);
+ !g_sequence_iter_is_end (iter); iter = g_sequence_iter_next (iter)) {
+ tckobj = GES_TRACK_OBJECT (g_sequence_get (iter));
+
+ start = g_hash_table_lookup (priv->by_start, tckobj);
+ end = g_hash_table_lookup (priv->by_end, tckobj);
+
+ *start = tckobj->start;
+ *end = tckobj->start + tckobj->duration;
+ }
+
+ g_sequence_sort (priv->starts_ends, (GCompareDataFunc) compare_uint64, NULL);
+}
+
+static inline void
+sort_all (GESTimeline * timeline)
+{
+ sort_track_objects (timeline);
+ resort_all_starts_ends (timeline);
+}
+
+/* Timeline edition functions */
+static inline void
+init_movecontext (MoveContext * mv_ctx)
+{
+ mv_ctx->moving_tckobjs = NULL;
+ mv_ctx->moving_tlobjs = g_hash_table_new (g_direct_hash, g_direct_equal);
+ mv_ctx->max_trim_pos = G_MAXUINT64;
+ mv_ctx->min_move_layer = G_MAXUINT;
+ mv_ctx->max_layer_prio = 0;
+ mv_ctx->last_snaped1 = NULL;
+ mv_ctx->last_snaped2 = NULL;
+ mv_ctx->last_snap_ts = GST_CLOCK_TIME_NONE;
+}
+
+static inline void
+clean_movecontext (MoveContext * mv_ctx)
+{
+ g_list_free (mv_ctx->moving_tckobjs);
+ g_hash_table_unref (mv_ctx->moving_tlobjs);
+ init_movecontext (mv_ctx);
+}
+
+static void
+stop_tracking_for_snapping (GESTimeline * timeline, GESTrackObject * tckobj)
+{
+ guint64 *start, *end;
+ GESTimelinePrivate *priv = timeline->priv;
+ GSequenceIter *iter_start, *iter_end, *tckobj_iter;
+
+
+ start = g_hash_table_lookup (priv->by_start, tckobj);
+ end = g_hash_table_lookup (priv->by_end, tckobj);
+
+ iter_start = lookup_pointer_uint (priv->starts_ends, start);
+ iter_end = lookup_pointer_uint (priv->starts_ends, end);
+ tckobj_iter = g_sequence_lookup (timeline->priv->tracksources, tckobj,
+ (GCompareDataFunc) objects_start_compare, NULL);
+
+ g_hash_table_remove (priv->by_start, tckobj);
+ g_hash_table_remove (priv->by_end, tckobj);
+ g_hash_table_remove (priv->by_object, end);
+ g_hash_table_remove (priv->by_object, start);
+
+ g_sequence_remove (iter_start);
+ g_sequence_remove (iter_end);
+ g_sequence_remove (tckobj_iter);
+
+}
+
+static void
+start_tracking_track_obj (GESTimeline * timeline, GESTrackObject * tckobj)
+{
+ guint64 *pstart, *pend;
+ GESTimelinePrivate *priv = timeline->priv;
+
+ pstart = g_malloc (sizeof (guint64));
+ pend = g_malloc (sizeof (guint64));
+ *pstart = tckobj->start;
+ *pend = *pstart + tckobj->duration;
+
+ g_sequence_insert_sorted (priv->starts_ends, pstart,
+ (GCompareDataFunc) compare_uint64, NULL);
+ g_sequence_insert_sorted (priv->starts_ends, pend,
+ (GCompareDataFunc) compare_uint64, NULL);
+ g_sequence_insert_sorted (priv->tracksources, g_object_ref (tckobj),
+ (GCompareDataFunc) objects_start_compare, NULL);
+
+ g_hash_table_insert (priv->by_start, tckobj, pstart);
+ g_hash_table_insert (priv->by_object, pstart, tckobj);
+ g_hash_table_insert (priv->by_end, tckobj, pend);
+ g_hash_table_insert (priv->by_object, pend, tckobj);
+
+ timeline->priv->movecontext.needs_move_ctx = TRUE;
+}
+
+static inline void
+ges_timeline_emit_snappig (GESTimeline * timeline, GESTrackObject * obj1,
+ guint64 * timecode)
+{
+ GESTrackObject *obj2;
+ MoveContext *mv_ctx = &timeline->priv->movecontext;
+
+ if (timecode == NULL) {
+ if (mv_ctx->last_snaped1 != NULL && mv_ctx->last_snaped2 != NULL) {
+ g_signal_emit (timeline, ges_timeline_signals[SNAPING_ENDED], 0,
+ mv_ctx->last_snaped1, mv_ctx->last_snaped2, mv_ctx->last_snap_ts);
+
+ /* We then need to recalculate the moving context */
+ timeline->priv->movecontext.needs_move_ctx = TRUE;
+ }
+
+ return;
+ }
+
+ obj2 = g_hash_table_lookup (timeline->priv->by_object, timecode);
+
+ if (mv_ctx->last_snap_ts != *timecode) {
+ g_signal_emit (timeline, ges_timeline_signals[SNAPING_ENDED], 0,
+ mv_ctx->last_snaped1, mv_ctx->last_snaped2, mv_ctx->last_snap_ts);
+
+ /* We want the snap start signal to be emited anyway */
+ mv_ctx->last_snap_ts = GST_CLOCK_TIME_NONE;
+ }
+
+ if (GST_CLOCK_TIME_IS_VALID (mv_ctx->last_snap_ts) == FALSE) {
+
+ mv_ctx->last_snaped1 = obj1;
+ mv_ctx->last_snaped2 = obj2;
+ mv_ctx->last_snap_ts = *timecode;
+
+ g_signal_emit (timeline, ges_timeline_signals[SNAPING_STARTED], 0,
+ obj1, obj2, *timecode);
+
+ }
+}
+
+static guint64 *
+ges_timeline_snap_position (GESTimeline * timeline, GESTrackObject * trackobj,
+ guint64 * current, guint64 timecode, gboolean emit)
+{
+ GESTimelinePrivate *priv = timeline->priv;
+ GSequenceIter *iter, *prev_iter, *nxt_iter;
+ GESTrackObject *tmp_tckobj;
+ GESTimelineObject *tmp_tlobj, *tlobj;
+
+ guint64 snap_distance = timeline->priv->snapping_distance;
+
+ guint64 *prev_tc, *next_tc, *ret = NULL, off = G_MAXUINT64, off1 =
+ G_MAXUINT64;
+
+ /* Avoid useless calculations */
+ if (snap_distance == 0)
+ return NULL;
+
+ tlobj = ges_track_object_get_timeline_object (trackobj);
+
+ iter = g_sequence_search (priv->starts_ends, &timecode,
+ (GCompareDataFunc) compare_uint64, NULL);
+
+ /* Getting the next/previous values, and use the closest one if any "respects"
+ * the snap_distance value */
+ nxt_iter = iter;
+ while (!g_sequence_iter_is_end (nxt_iter)) {
+ next_tc = g_sequence_get (iter);
+ tmp_tckobj = g_hash_table_lookup (timeline->priv->by_object, next_tc);
+ tmp_tlobj = ges_track_object_get_timeline_object (tmp_tckobj);
+
+ off = timecode > *next_tc ? timecode - *next_tc : *next_tc - timecode;
+ if (next_tc != current && off <= snap_distance && tlobj != tmp_tlobj) {
+
+ ret = next_tc;
+ break;
+ }
+
+ nxt_iter = g_sequence_iter_next (nxt_iter);
+ }
+
+ prev_iter = g_sequence_iter_prev (iter);
+ while (!g_sequence_iter_is_begin (prev_iter)) {
+ prev_tc = g_sequence_get (prev_iter);
+ tmp_tckobj = g_hash_table_lookup (timeline->priv->by_object, prev_tc);
+ tmp_tlobj = ges_track_object_get_timeline_object (tmp_tckobj);
+
+ off1 = timecode > *prev_tc ? timecode - *prev_tc : *prev_tc - timecode;
+ if (prev_tc != current && off1 < off && off1 <= snap_distance &&
+ tlobj != tmp_tlobj) {
+ ret = prev_tc;
+
+ break;
+ }
+
+ prev_iter = g_sequence_iter_prev (prev_iter);
+ }
+
+ /* We emit the snapping signal only if we snapped with a different value
+ * than the current one */
+ if (emit) {
+ ges_timeline_emit_snappig (timeline, trackobj, ret);
+ GST_DEBUG_OBJECT (timeline, "Snaping at %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (*ret));
+ }
+
+ return ret;
+}
+
+static inline GESTimelineObject *
+add_moving_timeline_object (MoveContext * mv_ctx, GESTrackObject * tckobj)
+{
+ GESTimelineObject *tlobj;
+ GESTimelineLayer *layer;
+ guint layer_prio;
+
+ tlobj = ges_track_object_get_timeline_object (tckobj);
+
+ /* Avoid recalculating */
+ if (!g_hash_table_lookup (mv_ctx->moving_tlobjs, tlobj)) {
+ layer = ges_timeline_object_get_layer (tlobj);
+ if (layer == NULL) {
+ GST_WARNING_OBJECT (tlobj, "Not in any layer, can not move"
+ " between layers");
+
+ } else {
+
+ g_hash_table_insert (mv_ctx->moving_tlobjs, tlobj, tlobj);
+
+ layer_prio = ges_timeline_layer_get_priority (layer);
+ mv_ctx->min_move_layer = MIN (mv_ctx->min_move_layer, layer_prio);
+ mv_ctx->max_layer_prio = MAX (mv_ctx->max_layer_prio, layer_prio);
+
+ g_object_unref (layer);
+ }
+ }
+
+ return tlobj;
+}
+
+static gboolean
+ges_move_context_set_objects (GESTimeline * timeline, GESTrackObject * obj,
+ GESEdge edge)
+{
+ GSequenceIter *iter, *tckobj_iter;
+ guint64 start, end, tmpend;
+ GESTrackObject *tmptckobj;
+
+ MoveContext *mv_ctx = &timeline->priv->movecontext;
+
+ tckobj_iter = g_sequence_lookup (timeline->priv->tracksources, obj,
+ (GCompareDataFunc) objects_start_compare, NULL);
+
+ switch (edge) {
+ case GES_EDGE_START:
+ /* set it properly int the context of "trimming" */
+ mv_ctx->max_trim_pos = 0;
+ start = obj->start;
+
+ if (g_sequence_iter_is_begin (tckobj_iter))
+ break;
+
+ /* Look for the objects */
+ for (iter = g_sequence_iter_prev (tckobj_iter);
+ iter && !g_sequence_iter_is_end (iter);
+ iter = g_sequence_iter_prev (iter)) {
+
+ tmptckobj = GES_TRACK_OBJECT (g_sequence_get (iter));
+ tmpend = tmptckobj->start + tmptckobj->duration;
+
+ if (tmpend <= start) {
+ mv_ctx->max_trim_pos = MAX (mv_ctx->max_trim_pos, tmptckobj->start);
+ mv_ctx->moving_tckobjs =
+ g_list_prepend (mv_ctx->moving_tckobjs, tmptckobj);
+ }
+
+ if (g_sequence_iter_is_begin (iter))
+ break;
+ }
+ break;
+
+ case GES_EDGE_END:
+ case GES_EDGE_NONE: /* In this case only works for ripple */
+ end = ges_track_object_get_start (obj) +
+ ges_track_object_get_duration (obj);
+
+ mv_ctx->max_trim_pos = G_MAXUINT64;
+
+ /* Look for folowing objects */
+ for (iter = g_sequence_iter_next (tckobj_iter);
+ iter && !g_sequence_iter_is_end (iter);
+ iter = g_sequence_iter_next (iter)) {
+ tmptckobj = GES_TRACK_OBJECT (g_sequence_get (iter));
+
+ if (tmptckobj->start >= end) {
+ tmpend = tmptckobj->start + tmptckobj->duration;
+ mv_ctx->max_trim_pos = MIN (mv_ctx->max_trim_pos, tmpend);
+ mv_ctx->moving_tckobjs =
+ g_list_prepend (mv_ctx->moving_tckobjs, tmptckobj);
+ }
+ }
+ break;
+ default:
+ GST_DEBUG ("Edge type %d no supported", edge);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static gboolean
+ges_timeline_set_moving_context (GESTimeline * timeline, GESTrackObject * obj,
+ GESEditMode mode, GESEdge edge, GList * layers)
+{
+ MoveContext *mv_ctx = &timeline->priv->movecontext;
+ GESTimelineObject *tlobj = ges_track_object_get_timeline_object (obj);
+
+ /* Still in the same mv_ctx */
+ if ((mv_ctx->obj == tlobj && mv_ctx->mode == mode &&
+ mv_ctx->edge == edge && !mv_ctx->needs_move_ctx)) {
+
+ GST_DEBUG ("Keeping the same moving mv_ctx");
+ return TRUE;
+ }
+
+ GST_DEBUG_OBJECT (tlobj,
+ "Changing context:\nold: obj: %p, mode: %d, edge: %d \n"
+ "new: obj: %p, mode: %d, edge: %d ! Has changed %i", mv_ctx->obj,
+ mv_ctx->mode, mv_ctx->edge, tlobj, mode, edge, mv_ctx->needs_move_ctx);
+
+ clean_movecontext (mv_ctx);
+ mv_ctx->edge = edge;
+ mv_ctx->mode = mode;
+ mv_ctx->obj = tlobj;
+ mv_ctx->needs_move_ctx = FALSE;
+
+ switch (mode) {
+ case GES_EDIT_MODE_RIPPLE:
+ case GES_EDIT_MODE_ROLL:
+ if (!(ges_move_context_set_objects (timeline, obj, edge)))
+ return FALSE;
+ default:
+ break;
+ }
+
+ /* And we add the main object to the moving_tlobjs set */
+ add_moving_timeline_object (&timeline->priv->movecontext, obj);
+
+
+ return TRUE;
+}
+
+gboolean
+ges_timeline_trim_object_simple (GESTimeline * timeline, GESTrackObject * obj,
+ GList * layers, GESEdge edge, guint64 position, gboolean snapping)
+{
+ guint64 nstart, start, inpoint, duration, max_duration, *snapped, *cur;
+ gboolean ret = TRUE;
+ gint64 real_dur;
+
+ GST_DEBUG_OBJECT (obj, "Trimming to %" GST_TIME_FORMAT " %s snaping, edge %i",
+ GST_TIME_ARGS (position), snapping ? "Is" : "Not", edge);
+
+ start = ges_track_object_get_start (obj);
+ g_object_get (obj, "max-duration", &max_duration, NULL);
+
+ switch (edge) {
+ case GES_EDGE_START:
+ inpoint = obj->inpoint;
+ duration = obj->duration;
+
+ if (snapping) {
+ cur = g_hash_table_lookup (timeline->priv->by_start, obj);
+
+ snapped = ges_timeline_snap_position (timeline, obj, cur, position,
+ TRUE);
+ if (snapped)
+ position = *snapped;
+ }
+
+ nstart = position;
+
+ /* Calculate new values */
+ position = MAX (start > inpoint ? start - inpoint : 0, position);
+ position = MIN (position, start + duration);
+ inpoint = MAX (0, inpoint + position - start);
+
+ real_dur = start + duration - nstart;
+ /* FIXME: Why CLAMP (0, real_dur, max_duration) doesn't work? */
+ duration = MAX (0, real_dur);
+ duration = MIN (duration, max_duration - obj->inpoint);
+
+ ges_track_object_set_start (obj, nstart);
+ ges_track_object_set_duration (obj, duration);
+ ges_track_object_set_inpoint (obj, inpoint);
+ break;
+ case GES_EDGE_END:
+ {
+ cur = g_hash_table_lookup (timeline->priv->by_end, obj);
+ snapped = ges_timeline_snap_position (timeline, obj, cur, position, TRUE);
+ if (snapped)
+ position = *snapped;
+
+ /* Calculate new values */
+ real_dur = position - start;
+ duration = MAX (0, real_dur);
+ duration = MIN (duration, max_duration - obj->inpoint);
+
+ ges_track_object_set_duration (obj, duration);
+ break;
+ }
+ default:
+ GST_WARNING ("Can not trim with %i GESEdge", edge);
+ return FALSE;
+ }
+
+ return ret;
+}
+
+gboolean
+timeline_ripple_object (GESTimeline * timeline, GESTrackObject * obj,
+ GList * layers, GESEdge edge, guint64 position)
+{
+ GList *tmp, *moved_tlobjs = NULL;
+ GESTrackObject *tckobj;
+ GESTimelineObject *tlobj;
+ guint64 duration, new_start, *snapped, *cur;
+ gint64 offset;
+
+ MoveContext *mv_ctx = &timeline->priv->movecontext;
+
+ mv_ctx->ignore_needs_ctx = TRUE;
+
+ if (!ges_timeline_set_moving_context (timeline, obj, GES_EDIT_MODE_RIPPLE,
+ edge, layers))
+ goto error;
+
+ switch (edge) {
+ case GES_EDGE_NONE:
+ GST_DEBUG ("Simply rippling");
+
+ cur = g_hash_table_lookup (timeline->priv->by_end, obj);
+ snapped = ges_timeline_snap_position (timeline, obj, cur, position, TRUE);
+ if (snapped)
+ position = *snapped;
+
+ offset = position - obj->start;
+
+ for (tmp = mv_ctx->moving_tckobjs; tmp; tmp = tmp->next) {
+ tckobj = GES_TRACK_OBJECT (tmp->data);
+ new_start = tckobj->start + offset;
+
+ tlobj = add_moving_timeline_object (mv_ctx, tckobj);
+
+ if (ges_track_object_is_locked (tckobj) == TRUE) {
+
+ /* Make sure not to move 2 times the same TimelineObject */
+ if (g_list_find (moved_tlobjs, tlobj) == NULL) {
+ ges_track_object_set_start (tckobj, new_start);
+ moved_tlobjs = g_list_prepend (moved_tlobjs, tlobj);
+ }
+
+ } else {
+ ges_track_object_set_start (tckobj, new_start);
+ }
+ }
+ g_list_free (moved_tlobjs);
+ ges_track_object_set_start (obj, position);
+
+ break;
+ case GES_EDGE_END:
+ GST_DEBUG ("Rippling end");
+
+ cur = g_hash_table_lookup (timeline->priv->by_end, obj);
+ snapped = ges_timeline_snap_position (timeline, obj, cur, position, TRUE);
+ if (snapped)
+ position = *snapped;
+
+ duration = obj->duration;
+
+ ges_track_object_set_duration (obj, position - obj->start);
+
+ offset = obj->duration - duration;
+ for (tmp = mv_ctx->moving_tckobjs; tmp; tmp = tmp->next) {
+ tckobj = GES_TRACK_OBJECT (tmp->data);
+ new_start = tckobj->start + offset;
+
+ tlobj = add_moving_timeline_object (mv_ctx, tckobj);
+
+ if (ges_track_object_is_locked (tckobj) == TRUE) {
+
+ /* Make sure not to move 2 times the same TimelineObject */
+ if (g_list_find (moved_tlobjs, tlobj) == NULL) {
+ ges_track_object_set_start (tckobj, new_start);
+ moved_tlobjs = g_list_prepend (moved_tlobjs, tlobj);
+ }
+
+ } else {
+ ges_track_object_set_start (tckobj, new_start);
+ }
+ }
+
+ g_list_free (moved_tlobjs);
+ GST_DEBUG ("Done Rippling end");
+ break;
+ case GES_EDGE_START:
+ GST_WARNING ("Ripple start doesn't exist!");
+
+ break;
+ default:
+ GST_DEBUG ("Can not ripple edge: %i", edge);
+
+ break;
+ }
+
+ mv_ctx->ignore_needs_ctx = FALSE;
+
+ return TRUE;
+
+error:
+ mv_ctx->ignore_needs_ctx = FALSE;
+
+ return FALSE;
+}
+
+gboolean
+timeline_slide_object (GESTimeline * timeline, GESTrackObject * obj,
+ GList * layers, GESEdge edge, guint64 position)
+{
+
+ /* FIXME implement me! */
+ GST_WARNING ("Slide mode editing not implemented yet");
+
+ return FALSE;
+}
+
+gboolean
+timeline_trim_object (GESTimeline * timeline, GESTrackObject * object,
+ GList * layers, GESEdge edge, guint64 position)
+{
+ gboolean ret = FALSE;
+ MoveContext *mv_ctx = &timeline->priv->movecontext;
+
+ mv_ctx->ignore_needs_ctx = TRUE;
+
+ if (!ges_timeline_set_moving_context (timeline, object, GES_EDIT_MODE_TRIM,
+ edge, layers))
+ goto end;
+
+ ret =
+ ges_timeline_trim_object_simple (timeline, object, layers, edge, position,
+ TRUE);
+
+end:
+ mv_ctx->ignore_needs_ctx = FALSE;
+
+ return ret;
+}
+
+gboolean
+timeline_roll_object (GESTimeline * timeline, GESTrackObject * obj,
+ GList * layers, GESEdge edge, guint64 position)
+{
+ MoveContext *mv_ctx = &timeline->priv->movecontext;
+ guint64 start, duration, end, tmpstart, tmpduration, tmpend, *snapped, *cur;
+ gboolean ret = TRUE;
+ GList *tmp;
+
+ mv_ctx->ignore_needs_ctx = TRUE;
+
+ GST_DEBUG_OBJECT (obj, "Rolling object to %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (position));
+
+ if (!ges_timeline_set_moving_context (timeline, obj, GES_EDIT_MODE_ROLL,
+ edge, layers))
+ goto error;
+
+ start = ges_track_object_get_start (obj);
+ duration = ges_track_object_get_duration (obj);
+ end = start + duration;
+
+ switch (edge) {
+ case GES_EDGE_START:
+
+ /* Avoid negative durations */
+ if (position < mv_ctx->max_trim_pos || position > end)
+ goto error;
+
+ cur = g_hash_table_lookup (timeline->priv->by_start, obj);
+ snapped = ges_timeline_snap_position (timeline, obj, cur, position, TRUE);
+ if (snapped)
+ position = *snapped;
+
+ ret &=
+ ges_timeline_trim_object_simple (timeline, obj, layers,
+ GES_EDGE_START, position, FALSE);
+
+ /* In the case we reached max_duration we just make sure to roll
+ * everything to the real new position */
+ position = obj->start;
+
+ /* Send back changes to the neighbourhood */
+ for (tmp = mv_ctx->moving_tckobjs; tmp; tmp = tmp->next) {
+ GESTrackObject *tmptckobj = GES_TRACK_OBJECT (tmp->data);
+
+ tmpstart = ges_track_object_get_start (tmptckobj);
+ tmpduration = ges_track_object_get_duration (tmptckobj);
+ tmpend = tmpstart + tmpduration;
+
+ /* Check that the object should be resized at this position
+ * even if an error accurs, we keep doing our job */
+ if (tmpend == start) {
+ ret &= ges_timeline_trim_object_simple (timeline, tmptckobj, NULL,
+ GES_EDGE_END, position, FALSE);
+ break;
+ }
+ }
+ break;
+ case GES_EDGE_END:
+
+ /* Avoid negative durations */
+ if (position > mv_ctx->max_trim_pos || position < start)
+ goto error;
+
+ end = obj->start + obj->duration;
+
+ cur = g_hash_table_lookup (timeline->priv->by_end, obj);
+ snapped = ges_timeline_snap_position (timeline, obj, cur, position, TRUE);
+ if (snapped)
+ position = *snapped;
+
+ ret &= ges_timeline_trim_object_simple (timeline, obj, NULL, GES_EDGE_END,
+ position, FALSE);
+
+ /* In the case we reached max_duration we just make sure to roll
+ * everything to the real new position */
+ position = obj->start + obj->duration;
+
+ /* Send back changes to the neighbourhood */
+ for (tmp = mv_ctx->moving_tckobjs; tmp; tmp = tmp->next) {
+ GESTrackObject *tmptckobj = GES_TRACK_OBJECT (tmp->data);
+
+ tmpstart = ges_track_object_get_start (tmptckobj);
+ tmpduration = ges_track_object_get_duration (tmptckobj);
+ tmpend = tmpstart + tmpduration;
+
+ /* Check that the object should be resized at this position
+ * even if an error accure, we keep doing our job */
+ if (end == tmpstart) {
+ ret &= ges_timeline_trim_object_simple (timeline, tmptckobj, NULL,
+ GES_EDGE_START, position, FALSE);
+ }
+ }
+ break;
+ default:
+ GST_DEBUG ("Edge type %i not handled here", edge);
+ break;
+ }
+
+ mv_ctx->ignore_needs_ctx = FALSE;
+
+ return ret;
+
+error:
+ mv_ctx->ignore_needs_ctx = FALSE;
+
+ GST_DEBUG_OBJECT (obj, "Could not roll edge %d to %" GST_TIME_FORMAT,
+ edge, GST_TIME_ARGS (position));
+
+ return FALSE;
+}
+
+gboolean
+timeline_move_object (GESTimeline * timeline, GESTrackObject * object,
+ GList * layers, GESEdge edge, guint64 position)
+{
+ if (!ges_timeline_set_moving_context (timeline, object, GES_EDIT_MODE_RIPPLE,
+ edge, layers)) {
+ GST_DEBUG_OBJECT (object, "Could not move to %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (position));
+
+ return FALSE;
+ }
+
+ return ges_timeline_move_object_simple (timeline, object, layers, edge,
+ position);
+}
+
+gboolean
+ges_timeline_move_object_simple (GESTimeline * timeline,
+ GESTrackObject * object, GList * layers, GESEdge edge, guint64 position)
+{
+ guint64 *snap_end, *snap_st, *cur, off1, off2, end;
+
+ GST_DEBUG_OBJECT (timeline, "Moving to %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (position));
+
+ end = position + object->duration;
+ cur = g_hash_table_lookup (timeline->priv->by_end, object);
+ snap_end = ges_timeline_snap_position (timeline, object, cur, end, FALSE);
+ if (snap_end)
+ off1 = end > *snap_end ? end - *snap_end : *snap_end - end;
+ else
+ off1 = G_MAXUINT64;
+
+ cur = g_hash_table_lookup (timeline->priv->by_start, object);
+ snap_st = ges_timeline_snap_position (timeline, object, cur, position, FALSE);
+ if (snap_st)
+ off2 = position > *snap_st ? position - *snap_st : *snap_st - position;
+ else
+ off2 = G_MAXUINT64;
+
+ /* In the case we could snap on both sides, we snap on the end */
+ if (snap_end && off1 <= off2) {
+ position = position + *snap_end - end;
+ ges_timeline_emit_snappig (timeline, object, snap_end);
+ GST_DEBUG_OBJECT (timeline, "Real snap at %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (position));
+ } else if (snap_st) {
+ position = position + *snap_st - position;
+ ges_timeline_emit_snappig (timeline, object, snap_st);
+ GST_DEBUG_OBJECT (timeline, "Real snap at %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (position));
+ } else
+ ges_timeline_emit_snappig (timeline, object, NULL);
+
+
+ ges_track_object_set_start (object, position);
+
+ return TRUE;
+}
+
+gboolean
+timeline_context_to_layer (GESTimeline * timeline, gint offset)
+{
+ gboolean ret = TRUE;
+ MoveContext *mv_ctx = &timeline->priv->movecontext;
+
+
+
+ /* Layer's priority is always positive */
+ if (offset != 0 && (offset > 0 || mv_ctx->min_move_layer >= -offset)) {
+ GHashTableIter iter;
+ GESTimelineObject *key, *value;
+ GESTimelineLayer *new_layer, *layer;
+ guint prio;
+
+ mv_ctx->ignore_needs_ctx = TRUE;
+
+ GST_DEBUG ("Moving %d object, offset %d",
+ g_hash_table_size (mv_ctx->moving_tlobjs), offset);
+
+ g_hash_table_iter_init (&iter, mv_ctx->moving_tlobjs);
+ while (g_hash_table_iter_next (&iter, (gpointer *) & key,
+ (gpointer *) & value)) {
+ layer = ges_timeline_object_get_layer (value);
+ prio = ges_timeline_layer_get_priority (layer);
+
+ /* We know that the layer exists as we created it */
+ new_layer = GES_TIMELINE_LAYER (g_list_nth_data (timeline->priv->layers,
+ prio + offset));
+
+ if (new_layer == NULL) {
+ do {
+ new_layer = ges_timeline_append_layer (timeline);
+ } while (ges_timeline_layer_get_priority (new_layer) < prio + offset);
+ }
+
+ ret &= ges_timeline_object_move_to_layer (key, new_layer);
+
+ g_object_unref (layer);
+ }
+
+ /* Readjust min_move_layer */
+ mv_ctx->min_move_layer = mv_ctx->min_move_layer + offset;
+
+ mv_ctx->ignore_needs_ctx = FALSE;
+ }
+
+ return ret;
+}
+
static void
add_object_to_track (GESTimelineObject * object, GESTrack * track)
{
}
}
-
static void
do_async_start (GESTimeline * timeline)
{
if (ges_timeline_object_is_moving_from_layer (object)) {
GST_DEBUG ("TimelineObject %p is moving from a layer to another, not doing"
" anything on it", object);
+ if (!timeline->priv->movecontext.ignore_needs_ctx)
+ timeline->priv->movecontext.needs_move_ctx = TRUE;
return;
}
}
static void
+trackobj_start_changed_cb (GESTrackObject * child,
+ GParamSpec * arg G_GNUC_UNUSED, GESTimeline * timeline)
+{
+ sort_track_objects (timeline);
+ sort_starts_ends_start (timeline, child);
+ sort_starts_ends_end (timeline, child);
+
+ if (!timeline->priv->movecontext.ignore_needs_ctx)
+ timeline->priv->movecontext.needs_move_ctx = TRUE;
+}
+
+static void
+trackobj_duration_changed_cb (GESTrackObject * child,
+ GParamSpec * arg G_GNUC_UNUSED, GESTimeline * timeline)
+{
+ sort_starts_ends_end (timeline, child);
+
+ if (!timeline->priv->movecontext.ignore_needs_ctx)
+ timeline->priv->movecontext.needs_move_ctx = TRUE;
+}
+
+static void
+trackobj_inpoint_changed_cb (GESTrackObject * child,
+ GParamSpec * arg G_GNUC_UNUSED, GESTimeline * timeline)
+{
+ if (!timeline->priv->movecontext.ignore_needs_ctx)
+ timeline->priv->movecontext.needs_move_ctx = TRUE;
+}
+
+static void
+track_object_added_cb (GESTrack * track, GESTrackObject * object,
+ GESTimeline * timeline)
+{
+ /* We only work with sources */
+ if (GES_IS_TRACK_SOURCE (object)) {
+ start_tracking_track_obj (timeline, object);
+
+ g_signal_connect (GES_TRACK_OBJECT (object), "notify::start",
+ G_CALLBACK (trackobj_start_changed_cb), timeline);
+ g_signal_connect (GES_TRACK_OBJECT (object), "notify::duration",
+ G_CALLBACK (trackobj_duration_changed_cb), timeline);
+ g_signal_connect (GES_TRACK_OBJECT (object), "notify::in-point",
+ G_CALLBACK (trackobj_inpoint_changed_cb), timeline);
+ }
+}
+
+static void
+track_object_removed_cb (GESTrack * track, GESTrackObject * object,
+ GESTimeline * timeline)
+{
+ /* We only work with sources */
+ if (GES_IS_TRACK_SOURCE (object)) {
+ g_signal_handlers_disconnect_by_func (object, trackobj_start_changed_cb,
+ NULL);
+ g_signal_handlers_disconnect_by_func (object, trackobj_duration_changed_cb,
+ NULL);
+ g_signal_handlers_disconnect_by_func (object, trackobj_inpoint_changed_cb,
+ NULL);
+
+ /* Make sure to reinitialise the moving context next time */
+ timeline->priv->movecontext.needs_move_ctx = TRUE;
+ stop_tracking_for_snapping (timeline, object);
+ }
+}
+
+static void
track_duration_cb (GstElement * track,
GParamSpec * arg G_GNUC_UNUSED, GESTimeline * timeline)
{
for (tmp = timeline->priv->tracks; tmp; tmp = g_list_next (tmp)) {
TrackPrivate *tr_priv = (TrackPrivate *) tmp->data;
g_object_get (tr_priv->track, "duration", &duration, NULL);
- GST_DEBUG ("track duration : %" GST_TIME_FORMAT, GST_TIME_ARGS (duration));
+
+ GST_DEBUG_OBJECT (track, "track duration : %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (duration));
max_duration = MAX (duration, max_duration);
}
* ges_timeline_append_layer:
* @timeline: a #GESTimeline
*
- * Append a newly creater #GESTimelineLayer to @timeline
+ * Append a newly created #GESTimelineLayer to @timeline
* Note that you do not own any reference to the returned layer.
*
* Returns: (transfer none): The newly created #GESTimelineLayer, or the last (empty)
/* ensure that each existing timeline object has the opportunity to create a
* track object for this track*/
+ /* We connect to the duration change notify, so we can update
+ * our duration accordingly */
+ g_signal_connect (G_OBJECT (track), "notify::duration",
+ G_CALLBACK (track_duration_cb), timeline);
+
+ /* We connect to the object for the timeline editing mode management */
+ g_signal_connect (G_OBJECT (track), "track-object-added",
+ G_CALLBACK (track_object_added_cb), timeline);
+ g_signal_connect (G_OBJECT (track), "track-object-removed",
+ G_CALLBACK (track_object_removed_cb), timeline);
+
for (tmp = priv->layers; tmp; tmp = tmp->next) {
GList *objects, *obj;
objects = ges_timeline_layer_get_objects (tmp->data);
g_list_free (objects);
}
- /* We connect to the duration change notify, so we can update
- * our duration accordingly */
- g_signal_connect (G_OBJECT (track), "notify::duration",
- G_CALLBACK (track_duration_cb), timeline);
track_duration_cb (GST_ELEMENT (track), NULL, timeline);
return TRUE;
g_signal_handlers_disconnect_by_func (track, pad_removed_cb, tr_priv);
g_signal_handlers_disconnect_by_func (track, track_duration_cb,
tr_priv->track);
+ g_signal_handlers_disconnect_by_func (track, track_object_added_cb, timeline);
+ g_signal_handlers_disconnect_by_func (track, track_object_removed_cb,
+ timeline);
/* Signal track removal to all layers/objects */
g_signal_emit (timeline, ges_timeline_signals[TRACK_REMOVED], 0, track);
res = FALSE;
}
+ /* Make sure we reset the context */
+ timeline->priv->movecontext.needs_move_ctx = TRUE;
+
return res;
}
projects / platform / upstream / gstreamer.git / blobdiff