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textoverlay: Attach OverlayComposition to buffers when needed

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Add video/x-surface support in the caps
We should then attach it whenever the sink supports it, but this
is working for the time being
This commit is contained in:
Thibault Saunier 2011-11-23 12:49:02 -03:00 committed by Tim-Philipp Müller
parent 2a687b6dfb
commit cbcf1e0b46
2 changed files with 26 additions and 2 deletions
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26
ext/pango/gsttextoverlay.c
View file

@ -173,6 +173,7 @@ enum
PROP_LAST
};
/* FIXME Use GST_VIDEO_CAPS_SURFACE when it lands in base */
static GstStaticPadTemplate src_template_factory =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
@ -187,6 +188,7 @@ static GstStaticPadTemplate src_template_factory =
GST_VIDEO_CAPS_BGRA ";"
GST_VIDEO_CAPS_ARGB ";"
GST_VIDEO_CAPS_ABGR ";"
"video/x-surface;"
GST_VIDEO_CAPS_YUV ("{I420, YV12, AYUV, YUY2, UYVY, v308, v210,"
" v216, Y41B, Y42B, Y444, Y800, Y16, NV12, NV21, UYVP, A420,"
" YUV9, IYU1}"))
@ -206,6 +208,7 @@ static GstStaticPadTemplate video_sink_template_factory =
GST_VIDEO_CAPS_BGRA ";"
GST_VIDEO_CAPS_ARGB ";"
GST_VIDEO_CAPS_ABGR ";"
"video/x-surface;"
GST_VIDEO_CAPS_YUV ("{I420, YV12, AYUV, YUY2, UYVY, v308, v210,"
" v216, Y41B, Y42B, Y444, Y800, Y16, NV12, NV21, UYVP, A420,"
" YUV9, IYU1}"))
@ -797,8 +800,20 @@ gst_text_overlay_setcaps (GstPad * pad, GstCaps * caps)
overlay->fps_d = gst_value_get_fraction_denominator (fps);
if (ret) {
GstStructure *structure;
GST_OBJECT_LOCK (overlay);
g_mutex_lock (GST_TEXT_OVERLAY_GET_CLASS (overlay)->pango_lock);
/* FIXME Use the query to the sink to do that when implemented */
/* Update wether to attach composition to buffer or do the composition
* ourselves */
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "video/x-surface"))
overlay->attach_compo_to_buffer = TRUE;
else
overlay->attach_compo_to_buffer = FALSE;
gst_text_overlay_update_wrap_mode (overlay);
g_mutex_unlock (GST_TEXT_OVERLAY_GET_CLASS (overlay)->pango_lock);
GST_OBJECT_UNLOCK (overlay);
@ -1639,8 +1654,15 @@ gst_text_overlay_push_frame (GstTextOverlay * overlay, GstBuffer * video_frame)
}
}
if (overlay->composition)
gst_video_overlay_composition_blend (overlay->composition, video_frame);
if (overlay->composition) {
if (overlay->attach_compo_to_buffer) {
GST_DEBUG_OBJECT (overlay, "Attaching text to the buffer");
gst_video_buffer_set_overlay_composition (video_frame,
overlay->composition);
} else {
gst_video_overlay_composition_blend (overlay->composition, video_frame);
}
}
return gst_pad_push (overlay->srcpad, video_frame);
}

2
ext/pango/gsttextoverlay.h
View file

@ -156,6 +156,8 @@ struct _GstTextOverlay {
gboolean have_pango_markup;
gboolean use_vertical_render;
gboolean attach_compo_to_buffer;
GstVideoOverlayComposition *composition;
};