mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-07-03 13:16:04 +00:00
Code Issues 1 Projects Releases Wiki Activity

basetestoverlay: Pass down meta buffers from upstream that supports GstVideoOverlayComposition

Browse source 
This makes pipelines with multiple textoverlay elements possible.
The meta data is collected from the upstream textoverlay element,
merged into a new GstVideoOverlayComposition and passed down downstream.

https://bugzilla.gnome.org/show_bug.cgi?id=751157
This commit is contained in:
Lubosz Sarnecki 2015-03-19 17:59:16 +01:00 committed by Nicolas Dufresne
parent 7c638e06ff
commit f128666834
2 changed files with 29 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
ext/pango/gstbasetextoverlay.c
View file

@ -629,6 +629,9 @@ gst_base_text_overlay_init (GstBaseTextOverlay * overlay,
overlay->text_buffer = NULL;
overlay->text_linked = FALSE;
overlay->composition = NULL;
overlay->upstream_composition = NULL;
g_mutex_init (&overlay->lock);
g_cond_init (&overlay->cond);
gst_segment_init (&overlay->segment, GST_FORMAT_TIME);
@ -1414,6 +1417,8 @@ gst_base_text_overlay_set_composition (GstBaseTextOverlay * overlay)
gst_base_text_overlay_get_pos (overlay, &xpos, &ypos);
GST_DEBUG ("updating composition for '%s'", overlay->default_text);
if (overlay->text_image) {
gst_buffer_add_video_meta (overlay->text_image, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB,
@ -1427,6 +1432,21 @@ gst_base_text_overlay_set_composition (GstBaseTextOverlay * overlay)
overlay->composition = gst_video_overlay_composition_new (rectangle);
gst_video_overlay_rectangle_unref (rectangle);
if (overlay->upstream_composition) {
guint num_overlays =
gst_video_overlay_composition_n_rectangles
(overlay->upstream_composition);
for (guint i = 0; i < num_overlays; i++) {
GstVideoOverlayRectangle *rectangle;
rectangle =
gst_video_overlay_composition_get_rectangle
(overlay->upstream_composition, i);
gst_video_overlay_composition_add_rectangle (overlay->composition,
rectangle);
}
}
} else if (overlay->composition) {
gst_video_overlay_composition_unref (overlay->composition);
overlay->composition = NULL;
@ -2297,8 +2317,16 @@ gst_base_text_overlay_video_chain (GstPad * pad, GstObject * parent,
gboolean in_seg = FALSE;
guint64 start, stop, clip_start = 0, clip_stop = 0;
gchar *text = NULL;
GstVideoOverlayCompositionMeta *composition_meta;
overlay = GST_BASE_TEXT_OVERLAY (parent);
composition_meta = gst_buffer_get_video_overlay_composition_meta (buffer);
if (composition_meta) {
GST_DEBUG ("GstVideoOverlayCompositionMeta found.");
overlay->upstream_composition = composition_meta->overlay;
}
klass = GST_BASE_TEXT_OVERLAY_GET_CLASS (overlay);
if (!GST_BUFFER_TIMESTAMP_IS_VALID (buffer))

1
ext/pango/gstbasetextoverlay.h
View file

@ -184,6 +184,7 @@ struct _GstBaseTextOverlay {
gboolean attach_compo_to_buffer;
GstVideoOverlayComposition *composition;
GstVideoOverlayComposition *upstream_composition;
};
struct _GstBaseTextOverlayClass {