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gstreamer/gst/vaapi/gstvaapipluginutil.c
Sreerenj Balachandran 38d84d968e plugins: initial port to GStreamer 1.0. 
Port vaapidecode and vaapisink plugins to GStreamer API >= 1.0. This
is rather minimalistic so that to test the basic functionality.

Disable vaapiupload, vaapidownload and vaapipostproc plugins. The latter
needs polishing wrt. to GStreamer 1.x functionality and the former are
totally phased out in favor of GstVaapiVideoMemory map/unmap facilities,
which are yet to be implemented.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2013-04-10 14:58:16 +02:00

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/*
* gstvaapipluginutil.h - VA-API plugin helpers
*
* Copyright (C) 2011-2012 Intel Corporation
* Copyright (C) 2011 Collabora
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#include "gst/vaapi/sysdeps.h"
#include <gst/video/videocontext.h>
#if USE_DRM
# include <gst/vaapi/gstvaapidisplay_drm.h>
#endif
#if USE_X11
# include <gst/vaapi/gstvaapidisplay_x11.h>
#endif
#if USE_GLX
# include <gst/vaapi/gstvaapidisplay_glx.h>
#endif
#if USE_WAYLAND
# include <gst/vaapi/gstvaapidisplay_wayland.h>
#endif
#include "gstvaapipluginutil.h"
/* Preferred first */
static const char *display_types[] = {
"gst-vaapi-display",
"vaapi-display",
#if USE_WAYLAND
"wl-display",
"wl-display-name",
#endif
#if USE_X11
"x11-display",
"x11-display-name",
#endif
#if USE_DRM
"drm-device",
"drm-device-path",
#endif
NULL
};
typedef struct {
const gchar *type_str;
GstVaapiDisplayType type;
GstVaapiDisplay * (*create_display)(const gchar *);
} DisplayMap;
static const DisplayMap g_display_map[] = {
#if USE_WAYLAND
{ "wayland",
GST_VAAPI_DISPLAY_TYPE_WAYLAND,
gst_vaapi_display_wayland_new },
#endif
#if USE_X11
{ "x11",
GST_VAAPI_DISPLAY_TYPE_X11,
gst_vaapi_display_x11_new },
#endif
#if USE_GLX
{ "glx",
GST_VAAPI_DISPLAY_TYPE_GLX,
gst_vaapi_display_glx_new },
#endif
#if USE_DRM
{ "drm",
GST_VAAPI_DISPLAY_TYPE_DRM,
gst_vaapi_display_drm_new },
#endif
{ NULL, }
};
gboolean
gst_vaapi_ensure_display(
gpointer element,
GstVaapiDisplayType display_type,
GstVaapiDisplay **display_ptr
)
{
GstVaapiDisplay *display;
GstVideoContext *context;
const DisplayMap *m;
g_return_val_if_fail(GST_IS_VIDEO_CONTEXT(element), FALSE);
g_return_val_if_fail(display_ptr != NULL, FALSE);
/* Already exist ? */
display = *display_ptr;
if (display)
return TRUE;
context = GST_VIDEO_CONTEXT(element);
g_return_val_if_fail(context != NULL, FALSE);
gst_video_context_prepare(context, display_types);
/* Neighbour found and it updated the display */
if (*display_ptr)
return TRUE;
/* If no neighboor, or application not interested, use system default */
for (m = g_display_map; m->type_str != NULL; m++) {
if (display_type != GST_VAAPI_DISPLAY_TYPE_ANY &&
display_type != m->type)
continue;
display = m->create_display(NULL);
if (display) {
/* FIXME: allocator should return NULL if an error occurred */
if (gst_vaapi_display_get_display(display)) {
display_type = m->type;
break;
}
g_object_unref(display);
display = NULL;
}
if (display_type != GST_VAAPI_DISPLAY_TYPE_ANY)
break;
}
if (display_ptr)
*display_ptr = display;
return display != NULL;
}
void
gst_vaapi_set_display(
const gchar *type,
const GValue *value,
GstVaapiDisplay **display
)
{
GstVaapiDisplay *dpy = NULL;
if (!strcmp(type, "vaapi-display")) {
g_return_if_fail(G_VALUE_HOLDS_POINTER(value));
dpy = gst_vaapi_display_new_with_display(g_value_get_pointer(value));
}
else if (!strcmp(type, "gst-vaapi-display")) {
g_return_if_fail(G_VALUE_HOLDS_OBJECT(value));
dpy = g_value_dup_object(value);
}
#if USE_DRM
else if (!strcmp(type, "drm-device")) {
gint device;
g_return_if_fail(G_VALUE_HOLDS_INT(value));
device = g_value_get_int(value);
dpy = gst_vaapi_display_drm_new_with_device(device);
}
else if (!strcmp(type, "drm-device-path")) {
const gchar *device_path;
g_return_if_fail(G_VALUE_HOLDS_STRING(value));
device_path = g_value_get_string(value);
dpy = gst_vaapi_display_drm_new(device_path);
}
#endif
#if USE_X11
else if (!strcmp(type, "x11-display-name")) {
g_return_if_fail(G_VALUE_HOLDS_STRING(value));
#if USE_GLX
dpy = gst_vaapi_display_glx_new(g_value_get_string(value));
#endif
if (!dpy)
dpy = gst_vaapi_display_x11_new(g_value_get_string(value));
}
else if (!strcmp(type, "x11-display")) {
g_return_if_fail(G_VALUE_HOLDS_POINTER(value));
#if USE_GLX
dpy = gst_vaapi_display_glx_new_with_display(g_value_get_pointer(value));
#endif
if (!dpy)
dpy = gst_vaapi_display_x11_new_with_display(g_value_get_pointer(value));
}
#endif
#if USE_WAYLAND
else if (!strcmp(type, "wl-display")) {
struct wl_display *wl_display;
g_return_if_fail(G_VALUE_HOLDS_POINTER(value));
wl_display = g_value_get_pointer(value);
dpy = gst_vaapi_display_wayland_new_with_display(wl_display);
}
else if (!strcmp(type, "wl-display-name")) {
const gchar *display_name;
g_return_if_fail(G_VALUE_HOLDS_STRING(value));
display_name = g_value_get_string(value);
dpy = gst_vaapi_display_wayland_new(display_name);
}
#endif
if (dpy) {
if (*display)
g_object_unref(*display);
*display = dpy;
}
}
gboolean
gst_vaapi_reply_to_query(GstQuery *query, GstVaapiDisplay *display)
{
GstVaapiDisplayType display_type;
const gchar **types;
const gchar *type;
gint i;
gboolean res = FALSE;
if (GST_QUERY_TYPE(query) != GST_QUERY_CUSTOM)
return FALSE;
if (!display)
return FALSE;
types = gst_video_context_query_get_supported_types(query);
if (!types)
return FALSE;
display_type = gst_vaapi_display_get_display_type(display);
for (i = 0; types[i] && !res; i++) {
type = types[i];
res = TRUE;
if (!strcmp(type, "gst-vaapi-display")) {
gst_video_context_query_set_object(query, type, G_OBJECT(display));
}
else if (!strcmp(type, "vaapi-display")) {
VADisplay vadpy = gst_vaapi_display_get_display(display);
gst_video_context_query_set_pointer(query, type, vadpy);
}
else {
switch (display_type) {
#if USE_DRM
case GST_VAAPI_DISPLAY_TYPE_DRM: {
GstVaapiDisplayDRM * const drm_dpy =
GST_VAAPI_DISPLAY_DRM(display);
if (!strcmp(type, "drm-device-path"))
gst_video_context_query_set_string(query, type,
gst_vaapi_display_drm_get_device_path(drm_dpy));
#if 0
/* XXX: gst_video_context_query_set_int() does not exist yet */
else if (!strcmp(type, "drm-device"))
gst_video_context_query_set_int(query, type,
gst_vaapi_display_drm_get_device(drm_dpy));
#endif
else
res = FALSE;
break;
}
#endif
#if USE_X11
#if USE_GLX
case GST_VAAPI_DISPLAY_TYPE_GLX:
#endif
case GST_VAAPI_DISPLAY_TYPE_X11: {
GstVaapiDisplayX11 * const xvadpy =
GST_VAAPI_DISPLAY_X11(display);
Display * const x11dpy =
gst_vaapi_display_x11_get_display(xvadpy);
if (!strcmp(type, "x11-display"))
gst_video_context_query_set_pointer(query, type, x11dpy);
else if (!strcmp(type, "x11-display-name"))
gst_video_context_query_set_string(query, type,
DisplayString(x11dpy));
else
res = FALSE;
break;
}
#endif
#if USE_WAYLAND
case GST_VAAPI_DISPLAY_TYPE_WAYLAND: {
GstVaapiDisplayWayland * const wlvadpy =
GST_VAAPI_DISPLAY_WAYLAND(display);
struct wl_display * const wldpy =
gst_vaapi_display_wayland_get_display(wlvadpy);
if (!strcmp(type, "wl-display"))
gst_video_context_query_set_pointer(query, type, wldpy);
else
res = FALSE;
break;
}
#endif
default:
res = FALSE;
break;
}
}
}
return res;
}
gboolean
gst_vaapi_append_surface_caps(GstCaps *out_caps, GstCaps *in_caps)
{
GstStructure *structure;
const GValue *v_width, *v_height, *v_framerate, *v_par;
guint i, n_structures;
structure = gst_caps_get_structure(in_caps, 0);
v_width = gst_structure_get_value(structure, "width");
v_height = gst_structure_get_value(structure, "height");
v_framerate = gst_structure_get_value(structure, "framerate");
v_par = gst_structure_get_value(structure, "pixel-aspect-ratio");
if (!v_width || !v_height)
return FALSE;
n_structures = gst_caps_get_size(out_caps);
for (i = 0; i < n_structures; i++) {
structure = gst_caps_get_structure(out_caps, i);
gst_structure_set_value(structure, "width", v_width);
gst_structure_set_value(structure, "height", v_height);
if (v_framerate)
gst_structure_set_value(structure, "framerate", v_framerate);
if (v_par)
gst_structure_set_value(structure, "pixel-aspect-ratio", v_par);
}
return TRUE;
}
gboolean
gst_vaapi_apply_composition(GstVaapiSurface *surface, GstBuffer *buffer)
{
#if GST_CHECK_VERSION(1,0,0)
GstVideoOverlayCompositionMeta * const cmeta =
gst_buffer_get_video_overlay_composition_meta(buffer);
GstVideoOverlayComposition *composition;
if (!cmeta)
return TRUE;
composition = cmeta->overlay;
#else
GstVideoOverlayComposition * const composition =
gst_video_buffer_get_overlay_composition(buffer);
#endif
if (!composition)
return TRUE;
return gst_vaapi_surface_set_subpictures_from_composition(surface,
composition, TRUE);
}
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