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38b596337f
Not doing so will cause buffers to be received by downstream without a time base set. We use the same method avimux uses to get access to the event when collectpads got the sink event function. https://bugzilla.gnome.org/show_bug.cgi?id=640323
89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
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#ifndef __GST_CAIRO_TEXT_OVERLAY_H__
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#define __GST_CAIRO_TEXT_OVERLAY_H__
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#include <gst/gst.h>
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#include <gst/base/gstcollectpads.h>
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G_BEGIN_DECLS
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#define GST_TYPE_CAIRO_TEXT_OVERLAY (gst_text_overlay_get_type())
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#define GST_CAIRO_TEXT_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\
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GST_TYPE_CAIRO_TEXT_OVERLAY, GstCairoTextOverlay))
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#define GST_CAIRO_TEXT_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\
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GST_TYPE_CAIRO_TEXT_OVERLAY, GstCairoTextOverlayClass))
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#define GST_CAIRO_TEXT_OVERLAY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
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GST_TYPE_CAIRO_TEXT_OVERLAY, GstCairoTextOverlayClass))
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#define GST_IS_CAIRO_TEXT_OVERLAY(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\
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GST_TYPE_CAIRO_TEXT_OVERLAY))
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#define GST_IS_CAIRO_TEXT_OVERLAY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),\
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GST_TYPE_CAIRO_TEXT_OVERLAY))
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typedef struct _GstCairoTextOverlay GstCairoTextOverlay;
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typedef struct _GstCairoTextOverlayClass GstCairoTextOverlayClass;
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typedef enum _GstCairoTextOverlayVAlign GstCairoTextOverlayVAlign;
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typedef enum _GstCairoTextOverlayHAlign GstCairoTextOverlayHAlign;
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enum _GstCairoTextOverlayVAlign {
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GST_CAIRO_TEXT_OVERLAY_VALIGN_BASELINE,
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GST_CAIRO_TEXT_OVERLAY_VALIGN_BOTTOM,
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GST_CAIRO_TEXT_OVERLAY_VALIGN_TOP
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};
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enum _GstCairoTextOverlayHAlign {
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GST_CAIRO_TEXT_OVERLAY_HALIGN_LEFT,
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GST_CAIRO_TEXT_OVERLAY_HALIGN_CENTER,
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GST_CAIRO_TEXT_OVERLAY_HALIGN_RIGHT
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};
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struct _GstCairoTextOverlay {
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GstElement element;
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GstPad *video_sinkpad;
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GstPad *text_sinkpad;
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GstPad *srcpad;
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GstCollectPads *collect;
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GstCollectData *video_collect_data;
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GstCollectData *text_collect_data;
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GstPadEventFunction collect_event;
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gint width;
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gint height;
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gint fps_n;
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gint fps_d;
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GstCairoTextOverlayVAlign valign;
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GstCairoTextOverlayHAlign halign;
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gint xpad;
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gint ypad;
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gint deltax;
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gint deltay;
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gchar *default_text;
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gboolean want_shading;
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guchar *text_fill_image;
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guchar *text_outline_image;
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gint font_height;
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gint text_x0, text_x1; /* start/end x position of text */
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gint text_dy;
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gboolean need_render;
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gchar *font;
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gint slant;
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gint weight;
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gdouble scale;
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};
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struct _GstCairoTextOverlayClass {
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GstElementClass parent_class;
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};
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GType gst_text_overlay_get_type (void);
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G_END_DECLS
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#endif /* __GST_CAIRO_TEXT_OVERLAY_H */
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