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videocontext: support "gst.vaapi.app.Display" context

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Through "gst.vaapi.app.Display" context, users can set their own VADisplay
and native display of their backend.

Attributes:
- display : pointer of VADisplay
- x11-display : pointer of X11 display (Display *), if they're using.

This patch creates GstVaapidisplayX11 if information provided through
"gst.vaapi.app.Display"

https://bugzilla.gnome.org/show_bug.cgi?id=766704
This commit is contained in:
Hyunjun Ko 2017-07-05 15:31:55 +09:00 committed by Víctor Manuel Jáquez Leal
parent d78e094fd4
commit b8265db260
2 changed files with 37 additions and 6 deletions
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42
gst/vaapi/gstvaapivideocontext.c
View file

@ -28,6 +28,9 @@
#if USE_GST_GL_HELPERS
# include <gst/gl/gl.h>
#endif
#if USE_X11
#include <gst/vaapi/gstvaapidisplay_x11.h>
#endif
GST_DEBUG_CATEGORY_STATIC (GST_CAT_CONTEXT);
@ -78,12 +81,31 @@ gst_vaapi_video_context_get_display (GstContext * context,
g_return_val_if_fail (GST_IS_CONTEXT (context), FALSE);
type = gst_context_get_context_type (context);
if (g_strcmp0 (type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME))
return FALSE;
structure = gst_context_get_structure (context);
return gst_structure_get (structure, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME,
GST_TYPE_VAAPI_DISPLAY, display_ptr, NULL);
if (!g_strcmp0 (type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME)) {
structure = gst_context_get_structure (context);
return gst_structure_get (structure, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME,
GST_TYPE_VAAPI_DISPLAY, display_ptr, NULL);
} else if (!g_strcmp0 (type, GST_VAAPI_DISPLAY_APP_CONTEXT_TYPE_NAME)) {
VADisplay va_display = NULL;
structure = gst_context_get_structure (context);
if (gst_structure_get (structure, "va-display", G_TYPE_POINTER, &va_display,
NULL)) {
#if USE_X11
Display *x11_display = NULL;
if (gst_structure_get (structure, "x11-display", G_TYPE_POINTER,
&x11_display, NULL)) {
*display_ptr =
gst_vaapi_display_x11_new_with_va_display (va_display, x11_display);
return TRUE;
}
#endif
GST_WARNING ("Not support if only VADisplay provided");
}
}
return FALSE;
}
static gboolean
@ -204,8 +226,16 @@ gst_vaapi_video_context_prepare (GstElement * element,
_gst_context_query (element, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME);
if (*display_ptr)
if (*display_ptr) {
GST_LOG_OBJECT (element, "found a display (%p)", *display_ptr);
return TRUE;
}
_gst_context_query (element, GST_VAAPI_DISPLAY_APP_CONTEXT_TYPE_NAME);
if (*display_ptr)
GST_LOG_OBJECT (element, "got a display with va display from app (%p)",
*display_ptr);
return *display_ptr != NULL;
}

1
gst/vaapi/gstvaapivideocontext.h
View file

@ -30,6 +30,7 @@
#include <gst/vaapi/gstvaapidisplay.h>
#define GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME "gst.vaapi.Display"
#define GST_VAAPI_DISPLAY_APP_CONTEXT_TYPE_NAME "gst.vaapi.app.Display"
G_GNUC_INTERNAL
void