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gstreamer/subprojects/gstreamer-vaapi/gst/vaapi/gstvaapisink.c

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/*
* gstvaapisink.c - VA-API video sink
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
* Copyright (C) 2011-2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* 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
*/
/**
* SECTION:element-vaapisink
* @short_description: A VA-API based video sink
*
* vaapisink renders video frames to a drawable (X Window) on a local
* display using the Video Acceleration (VA) API. The element will
* create its own internal window and render into it.
*
* ## Example launch line
*
* |[
* gst-launch-1.0 videotestsrc ! vaapisink
* ]|
*/
#include "gstcompat.h"
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/vaapi/gstvaapivalue.h>
/* Supported interfaces */
# include <gst/video/videooverlay.h>
# include <gst/video/colorbalance.h>
# include <gst/video/navigation.h>
#include "gstvaapisink.h"
#include "gstvaapipluginutil.h"
#include "gstvaapivideometa.h"
#include "gstvaapivideobufferpool.h"
#include "gstvaapivideomemory.h"
#define GST_PLUGIN_NAME "vaapisink"
#define GST_PLUGIN_DESC "A VA-API based videosink"
GST_DEBUG_CATEGORY_STATIC (gst_debug_vaapisink);
#ifndef GST_DISABLE_GST_DEBUG
#define GST_CAT_DEFAULT gst_debug_vaapisink
#else
#define GST_CAT_DEFAULT NULL
#endif
/* Default template */
/* *INDENT-OFF* */
static const char gst_vaapisink_sink_caps_str[] =
GST_VAAPI_MAKE_SURFACE_CAPS ";"
GST_VIDEO_CAPS_MAKE_WITH_FEATURES (
GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE ","
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
"{ ENCODED, NV12, I420, YV12, P010_10LE }") ";"
GST_VIDEO_CAPS_MAKE_WITH_FEATURES (
GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
GST_VIDEO_FORMATS_ALL) ";"
GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL);
/* *INDENT-ON* */
static GstStaticPadTemplate gst_vaapisink_sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (gst_vaapisink_sink_caps_str));
static gboolean
gst_vaapisink_has_interface (GstVaapiPluginBase * plugin, GType type)
{
return type == GST_TYPE_VIDEO_OVERLAY || type == GST_TYPE_COLOR_BALANCE;
}
static void
gst_vaapisink_video_overlay_iface_init (GstVideoOverlayInterface * iface);
static void
gst_vaapisink_color_balance_iface_init (GstColorBalanceInterface * iface);
static void
gst_vaapisink_navigation_iface_init (GstNavigationInterface * iface);
G_DEFINE_TYPE_WITH_CODE (GstVaapiSink,
gst_vaapisink,
GST_TYPE_VIDEO_SINK,
GST_VAAPI_PLUGIN_BASE_INIT_INTERFACES
G_IMPLEMENT_INTERFACE (GST_TYPE_VIDEO_OVERLAY,
gst_vaapisink_video_overlay_iface_init);
G_IMPLEMENT_INTERFACE (GST_TYPE_COLOR_BALANCE,
gst_vaapisink_color_balance_iface_init);
G_IMPLEMENT_INTERFACE (GST_TYPE_NAVIGATION,
gst_vaapisink_navigation_iface_init));
GST_VAAPI_PLUGIN_BASE_DEFINE_SET_CONTEXT (gst_vaapisink_parent_class);
enum
{
HANDOFF_SIGNAL,
LAST_SIGNAL
};
static guint gst_vaapisink_signals[LAST_SIGNAL] = { 0 };
enum
{
PROP_0,
PROP_DISPLAY_TYPE,
PROP_DISPLAY_NAME,
PROP_FULLSCREEN,
PROP_ROTATION,
PROP_FORCE_ASPECT_RATIO,
PROP_VIEW_ID,
PROP_HUE,
PROP_SATURATION,
PROP_BRIGHTNESS,
PROP_CONTRAST,
PROP_SIGNAL_HANDOFFS,
N_PROPERTIES
};
#define DEFAULT_DISPLAY_TYPE GST_VAAPI_DISPLAY_TYPE_ANY
#define DEFAULT_ROTATION GST_VAAPI_ROTATION_0
#define DEFAULT_SIGNAL_HANDOFFS FALSE
static GParamSpec *g_properties[N_PROPERTIES] = { NULL, };
static void gst_vaapisink_video_overlay_expose (GstVideoOverlay * overlay);
static gboolean gst_vaapisink_reconfigure_window (GstVaapiSink * sink);
static void
gst_vaapisink_set_event_handling (GstVaapiSink * sink, gboolean handle_events);
static GstFlowReturn
gst_vaapisink_show_frame (GstVideoSink * video_sink, GstBuffer * buffer);
static gboolean
gst_vaapisink_ensure_render_rect (GstVaapiSink * sink, guint width,
guint height);
static inline gboolean
gst_vaapisink_ensure_display (GstVaapiSink * sink)
{
return gst_vaapi_plugin_base_ensure_display (GST_VAAPI_PLUGIN_BASE (sink));
}
static inline gboolean
gst_vaapisink_render_surface (GstVaapiSink * sink, GstVaapiSurface * surface,
const GstVaapiRectangle * surface_rect, guint flags)
{
return sink->window && gst_vaapi_window_put_surface (sink->window, surface,
surface_rect, &sink->display_rect, flags);
}
/* ------------------------------------------------------------------------ */
/* --- DRM Backend --- */
/* ------------------------------------------------------------------------ */
#if GST_VAAPI_USE_DRM
#include <gst/vaapi/gstvaapidisplay_drm.h>
static gboolean
gst_vaapisink_drm_create_window (GstVaapiSink * sink, guint width, guint height)
{
g_return_val_if_fail (sink->window == NULL, FALSE);
GST_ERROR ("failed to create a window for VA/DRM display");
return FALSE;
}
static gboolean
gst_vaapisink_drm_render_surface (GstVaapiSink * sink,
GstVaapiSurface * surface, const GstVaapiRectangle * surface_rect,
guint flags)
{
return TRUE;
}
static const inline GstVaapiSinkBackend *
gst_vaapisink_backend_drm (void)
{
static const GstVaapiSinkBackend GstVaapiSinkBackendDRM = {
.create_window = gst_vaapisink_drm_create_window,
.render_surface = gst_vaapisink_drm_render_surface,
};
return &GstVaapiSinkBackendDRM;
}
#endif
/* ------------------------------------------------------------------------ */
/* --- X11 Backend --- */
/* ------------------------------------------------------------------------ */
#if GST_VAAPI_USE_X11
#include <gst/vaapi/gstvaapidisplay_x11.h>
#include <gst/vaapi/gstvaapiwindow_x11.h>
#if HAVE_XKBLIB
# include <X11/XKBlib.h>
#endif
static inline KeySym
x11_keycode_to_keysym (Display * dpy, unsigned int kc)
{
#if HAVE_XKBLIB
return XkbKeycodeToKeysym (dpy, kc, 0, 0);
#else
return XKeycodeToKeysym (dpy, kc, 0);
#endif
}
/* Checks whether a ConfigureNotify event is in the queue */
typedef struct _ConfigureNotifyEventPendingArgs ConfigureNotifyEventPendingArgs;
struct _ConfigureNotifyEventPendingArgs
{
Window window;
guint width;
guint height;
gboolean match;
};
static Bool
configure_notify_event_pending_cb (Display * dpy, XEvent * xev, XPointer arg)
{
ConfigureNotifyEventPendingArgs *const args =
(ConfigureNotifyEventPendingArgs *) arg;
if (xev->type == ConfigureNotify &&
xev->xconfigure.window == args->window &&
xev->xconfigure.width == args->width &&
xev->xconfigure.height == args->height)
args->match = TRUE;
/* XXX: this is a hack to traverse the whole queue because we
can't use XPeekIfEvent() since it could block */
return False;
}
static gboolean
configure_notify_event_pending (GstVaapiSink * sink, Window window,
guint width, guint height)
{
GstVaapiDisplayX11 *const display =
GST_VAAPI_DISPLAY_X11 (GST_VAAPI_PLUGIN_BASE_DISPLAY (sink));
ConfigureNotifyEventPendingArgs args;
XEvent xev;
args.window = window;
args.width = width;
args.height = height;
args.match = FALSE;
/* XXX: don't use XPeekIfEvent() because it might block */
XCheckIfEvent (gst_vaapi_display_x11_get_display (display),
&xev, configure_notify_event_pending_cb, (XPointer) & args);
return args.match;
}
static gboolean
gst_vaapisink_x11_create_window (GstVaapiSink * sink, guint width, guint height)
{
GstVaapiDisplay *const display = GST_VAAPI_PLUGIN_BASE_DISPLAY (sink);
g_return_val_if_fail (sink->window == NULL, FALSE);
sink->window = gst_vaapi_window_x11_new (display, width, height);
if (!sink->window)
return FALSE;
gst_video_overlay_got_window_handle (GST_VIDEO_OVERLAY (sink),
gst_vaapi_window_x11_get_xid (GST_VAAPI_WINDOW_X11 (sink->window)));
return TRUE;
}
static gboolean
gst_vaapisink_x11_create_window_from_handle (GstVaapiSink * sink,
guintptr window)
{
GstVaapiDisplay *display;
Window rootwin;
unsigned int width, height, border_width, depth;
int x, y;
XID xid = window;
if (!gst_vaapisink_ensure_display (sink))
return FALSE;
display = GST_VAAPI_PLUGIN_BASE_DISPLAY (sink);
gst_vaapi_display_lock (display);
XGetGeometry (gst_vaapi_display_x11_get_display (GST_VAAPI_DISPLAY_X11
(display)), xid, &rootwin, &x, &y, &width, &height, &border_width,
&depth);
gst_vaapi_display_unlock (display);
if ((width != sink->window_width || height != sink->window_height) &&
!configure_notify_event_pending (sink, xid, width, height)) {
if (!gst_vaapisink_ensure_render_rect (sink, width, height))
return FALSE;
sink->window_width = width;
sink->window_height = height;
}
if (!sink->window
|| gst_vaapi_window_x11_get_xid (GST_VAAPI_WINDOW_X11 (sink->window)) !=
xid) {
gst_vaapi_window_replace (&sink->window, NULL);
sink->window = gst_vaapi_window_x11_new_with_xid (display, xid);
if (!sink->window)
return FALSE;
}
gst_vaapisink_set_event_handling (sink, sink->handle_events);
return TRUE;
}
static gboolean
gst_vaapisink_x11_handle_events (GstVaapiSink * sink)
{
GstVaapiDisplay *const display = GST_VAAPI_PLUGIN_BASE_DISPLAY (sink);
gboolean has_events, do_expose = FALSE;
guint pointer_x = 0, pointer_y = 0;
gboolean pointer_moved = FALSE;
XEvent e;
if (sink->window) {
Display *const x11_dpy =
gst_vaapi_display_x11_get_display (GST_VAAPI_DISPLAY_X11 (display));
Window x11_win =
gst_vaapi_window_x11_get_xid (GST_VAAPI_WINDOW_X11 (sink->window));
/* Track MousePointer interaction */
for (;;) {
gst_vaapi_display_lock (display);
has_events = XCheckWindowEvent (x11_dpy, x11_win, PointerMotionMask, &e);
gst_vaapi_display_unlock (display);
if (!has_events)
break;
switch (e.type) {
case MotionNotify:
pointer_x = e.xmotion.x;
pointer_y = e.xmotion.y;
pointer_moved = TRUE;
break;
default:
break;
}
}
if (pointer_moved) {
gst_vaapi_display_lock (display);
gst_navigation_send_mouse_event (GST_NAVIGATION (sink),
"mouse-move", 0, pointer_x, pointer_y);
gst_vaapi_display_unlock (display);
}
/* Track KeyPress, KeyRelease, ButtonPress, ButtonRelease */
for (;;) {
KeySym keysym;
const char *key_str = NULL;
gst_vaapi_display_lock (display);
has_events = XCheckWindowEvent (x11_dpy, x11_win,
KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask,
&e);
gst_vaapi_display_unlock (display);
if (!has_events)
break;
switch (e.type) {
case ButtonPress:
gst_navigation_send_mouse_event (GST_NAVIGATION (sink),
"mouse-button-press", e.xbutton.button, e.xbutton.x, e.xbutton.y);
break;
case ButtonRelease:
gst_navigation_send_mouse_event (GST_NAVIGATION (sink),
"mouse-button-release", e.xbutton.button, e.xbutton.x,
e.xbutton.y);
break;
case KeyPress:
case KeyRelease:
gst_vaapi_display_lock (display);
keysym = x11_keycode_to_keysym (x11_dpy, e.xkey.keycode);
if (keysym != NoSymbol) {
key_str = XKeysymToString (keysym);
} else {
key_str = "unknown";
}
gst_vaapi_display_unlock (display);
gst_navigation_send_key_event (GST_NAVIGATION (sink),
e.type == KeyPress ? "key-press" : "key-release", key_str);
break;
default:
break;
}
}
/* Handle Expose + ConfigureNotify */
/* Need to lock whole loop or we corrupt the XEvent queue: */
for (;;) {
gst_vaapi_display_lock (display);
has_events = XCheckWindowEvent (x11_dpy, x11_win,
StructureNotifyMask | ExposureMask, &e);
gst_vaapi_display_unlock (display);
if (!has_events)
break;
switch (e.type) {
case Expose:
do_expose = TRUE;
break;
case ConfigureNotify:
if (gst_vaapisink_reconfigure_window (sink))
do_expose = TRUE;
break;
default:
break;
}
}
if (do_expose)
gst_vaapisink_video_overlay_expose (GST_VIDEO_OVERLAY (sink));
/* Handle Display events */
for (;;) {
gst_vaapi_display_lock (display);
if (XPending (x11_dpy) == 0) {
gst_vaapi_display_unlock (display);
break;
}
XNextEvent (x11_dpy, &e);
gst_vaapi_display_unlock (display);
switch (e.type) {
case ClientMessage:{
Atom wm_delete;
wm_delete = XInternAtom (x11_dpy, "WM_DELETE_WINDOW", False);
if (wm_delete == (Atom) e.xclient.data.l[0]) {
/* Handle window deletion by posting an error on the bus */
GST_ELEMENT_ERROR (sink, RESOURCE, NOT_FOUND,
("Output window was closed"), (NULL));
return FALSE;
}
break;
}
default:
break;
}
}
}
return TRUE;
}
static gboolean
gst_vaapisink_x11_pre_start_event_thread (GstVaapiSink * sink)
{
GstVaapiDisplayX11 *const display =
GST_VAAPI_DISPLAY_X11 (GST_VAAPI_PLUGIN_BASE_DISPLAY (sink));
int x11_event_mask = (KeyPressMask | KeyReleaseMask |
PointerMotionMask | ExposureMask | StructureNotifyMask);
if (!sink->foreign_window)
x11_event_mask |= ButtonPressMask | ButtonReleaseMask;
if (sink->window) {
gst_vaapi_display_lock (GST_VAAPI_DISPLAY (display));
XSelectInput (gst_vaapi_display_x11_get_display (display),
gst_vaapi_window_x11_get_xid (GST_VAAPI_WINDOW_X11 (sink->window)),
x11_event_mask);
gst_vaapi_display_unlock (GST_VAAPI_DISPLAY (display));
}
return TRUE;
}
static gboolean
gst_vaapisink_x11_pre_stop_event_thread (GstVaapiSink * sink)
{
GstVaapiDisplayX11 *const display =
GST_VAAPI_DISPLAY_X11 (GST_VAAPI_PLUGIN_BASE_DISPLAY (sink));
if (sink->window) {
gst_vaapi_display_lock (GST_VAAPI_DISPLAY (display));
XSelectInput (gst_vaapi_display_x11_get_display (display),
gst_vaapi_window_x11_get_xid (GST_VAAPI_WINDOW_X11 (sink->window)), 0);
gst_vaapi_display_unlock (GST_VAAPI_DISPLAY (display));
}
return TRUE;
}
static const inline GstVaapiSinkBackend *
gst_vaapisink_backend_x11 (void)
{
static const GstVaapiSinkBackend GstVaapiSinkBackendX11 = {
.create_window = gst_vaapisink_x11_create_window,
.create_window_from_handle = gst_vaapisink_x11_create_window_from_handle,
.render_surface = gst_vaapisink_render_surface,
.event_thread_needed = TRUE,
.handle_events = gst_vaapisink_x11_handle_events,
.pre_start_event_thread = gst_vaapisink_x11_pre_start_event_thread,
.pre_stop_event_thread = gst_vaapisink_x11_pre_stop_event_thread,
};
return &GstVaapiSinkBackendX11;
}
#endif
/* ------------------------------------------------------------------------ */
/* --- Wayland Backend --- */
/* ------------------------------------------------------------------------ */
#if GST_VAAPI_USE_WAYLAND
#include <gst/vaapi/gstvaapidisplay_wayland.h>
#include <gst/vaapi/gstvaapiwindow_wayland.h>
static void
on_window_wayland_size_changed (GstVaapiWindowWayland * window, gint width,
gint height, gpointer user_data)
{
GstVaapiSink *sink = GST_VAAPISINK (user_data);
GST_DEBUG ("Wayland window size changed to: %dx%d", width, height);
gst_vaapisink_reconfigure_window (sink);
gst_vaapisink_show_frame (GST_VIDEO_SINK_CAST (sink), NULL);
}
static gboolean
gst_vaapisink_wayland_create_window (GstVaapiSink * sink, guint width,
guint height)
{
GstVaapiDisplay *const display = GST_VAAPI_PLUGIN_BASE_DISPLAY (sink);
g_return_val_if_fail (sink->window == NULL, FALSE);
sink->window = gst_vaapi_window_wayland_new (display, width, height);
if (!sink->window)
return FALSE;
g_signal_connect_object (sink->window, "size-changed",
G_CALLBACK (on_window_wayland_size_changed), sink, 0);
return TRUE;
}
static gboolean
gst_vaapisink_wayland_create_window_from_handle (GstVaapiSink * sink,
guintptr window)
{
GstVaapiDisplay *display;
if (!gst_vaapisink_ensure_display (sink))
return FALSE;
display = GST_VAAPI_PLUGIN_BASE_DISPLAY (sink);
if (sink->window == NULL || (guintptr) sink->window != window) {
gst_vaapi_window_replace (&sink->window, NULL);
sink->window = gst_vaapi_window_wayland_new_with_surface (display, window);
}
return sink->window != NULL;
}
static const inline GstVaapiSinkBackend *
gst_vaapisink_backend_wayland (void)
{
static const GstVaapiSinkBackend GstVaapiSinkBackendWayland = {
.create_window = gst_vaapisink_wayland_create_window,
.create_window_from_handle =
gst_vaapisink_wayland_create_window_from_handle,
.render_surface = gst_vaapisink_render_surface,
};
return &GstVaapiSinkBackendWayland;
}
#endif
/* ------------------------------------------------------------------------ */
/* --- GstVideoOverlay interface --- */
/* ------------------------------------------------------------------------ */
static void
gst_vaapisink_video_overlay_set_window_handle (GstVideoOverlay * overlay,
guintptr window)
{
GstVaapiSink *const sink = GST_VAAPISINK (overlay);
GstVaapiDisplayType display_type;
if (!gst_vaapisink_ensure_display (sink))
return;
display_type = GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE (sink);
/* Disable GLX rendering when vaapisink is using a foreign X
window. It's pretty much useless */
if (display_type == GST_VAAPI_DISPLAY_TYPE_GLX) {
display_type = GST_VAAPI_DISPLAY_TYPE_X11;
gst_vaapi_plugin_base_set_display_type (GST_VAAPI_PLUGIN_BASE (sink),
display_type);
}
sink->foreign_window = TRUE;
if (sink->backend->create_window_from_handle)
sink->backend->create_window_from_handle (sink, window);
}
static void
gst_vaapisink_video_overlay_set_render_rectangle (GstVideoOverlay * overlay,
gint x, gint y, gint width, gint height)
{
GstVaapiSink *const sink = GST_VAAPISINK (overlay);
GstVaapiRectangle *const display_rect = &sink->display_rect;
display_rect->x = x;
display_rect->y = y;
display_rect->width = width;
display_rect->height = height;
if (gst_vaapisink_ensure_render_rect (sink, width, height) && sink->window) {
gst_vaapi_window_set_render_rectangle (sink->window, x, y, width, height);
gst_vaapi_window_set_size (sink->window, width, height);
gst_vaapisink_reconfigure_window (sink);
}
GST_DEBUG ("render rect (%d,%d):%ux%u",
display_rect->x, display_rect->y,
display_rect->width, display_rect->height);
}
static void
gst_vaapisink_video_overlay_expose (GstVideoOverlay * overlay)
{
GstVaapiSink *const sink = GST_VAAPISINK (overlay);
gst_vaapisink_reconfigure_window (sink);
gst_vaapisink_show_frame (GST_VIDEO_SINK_CAST (sink), NULL);
}
static void
gst_vaapisink_video_overlay_set_event_handling (GstVideoOverlay * overlay,
gboolean handle_events)
{
GstVaapiSink *const sink = GST_VAAPISINK (overlay);
sink->handle_events = handle_events;
gst_vaapisink_set_event_handling (sink, handle_events);
}
static void
gst_vaapisink_video_overlay_iface_init (GstVideoOverlayInterface * iface)
{
iface->set_window_handle = gst_vaapisink_video_overlay_set_window_handle;
iface->set_render_rectangle =
gst_vaapisink_video_overlay_set_render_rectangle;
iface->expose = gst_vaapisink_video_overlay_expose;
iface->handle_events = gst_vaapisink_video_overlay_set_event_handling;
}
/* ------------------------------------------------------------------------ */
/* --- GstColorBalance interface --- */
/* ------------------------------------------------------------------------ */
enum
{
CB_HUE = 1,
CB_SATURATION,
CB_BRIGHTNESS,
CB_CONTRAST
};
typedef struct
{
guint cb_id;
const gchar *prop_name;
const gchar *channel_name;
} ColorBalanceMap;
static const ColorBalanceMap cb_map[4] = {
{CB_HUE, GST_VAAPI_DISPLAY_PROP_HUE, "VA_HUE"},
{CB_SATURATION, GST_VAAPI_DISPLAY_PROP_SATURATION, "VA_SATURATION"},
{CB_BRIGHTNESS, GST_VAAPI_DISPLAY_PROP_BRIGHTNESS, "VA_BRIGHTNESS"},
{CB_CONTRAST, GST_VAAPI_DISPLAY_PROP_CONTRAST, "VA_CONTRAST"}
};
static guint
cb_get_id_from_channel_name (GstVaapiSink * sink, const gchar * name)
{
guint i;
for (i = 0; i < G_N_ELEMENTS (sink->cb_values); i++) {
if (g_ascii_strcasecmp (cb_map[i].channel_name, name) == 0)
return cb_map[i].cb_id;
}
GST_WARNING ("got an unknown channel %s", name);
return 0;
}
static inline GValue *
cb_get_gvalue (GstVaapiSink * sink, guint id)
{
g_return_val_if_fail ((guint) (id - CB_HUE) < G_N_ELEMENTS (sink->cb_values),
NULL);
return &sink->cb_values[id - CB_HUE];
}
static gboolean
cb_set_value (GstVaapiSink * sink, guint id, gfloat value)
{
GValue *const v_value = cb_get_gvalue (sink, id);
if (!v_value)
return FALSE;
g_value_set_float (v_value, value);
sink->cb_changed |= (1U << id);
return TRUE;
}
static inline gfloat
cb_get_value (GstVaapiSink * sink, guint id)
{
const GValue *const v_value = cb_get_gvalue (sink, id);
return v_value ? g_value_get_float (v_value) : 0.0;
}
static gboolean
cb_sync_values_from_display (GstVaapiSink * sink, GstVaapiDisplay * display)
{
guint i;
gfloat value;
for (i = 0; i < G_N_ELEMENTS (sink->cb_values); i++) {
const guint cb_id = CB_HUE + i;
if (!gst_vaapi_display_has_property (display, cb_map[i].prop_name)) {
GST_INFO_OBJECT (sink, "backend does not handle %s", cb_map[i].prop_name);
continue;
}
value = 0.0;
g_object_get (display, cb_map[i].prop_name, &value, NULL);
cb_set_value (sink, cb_id, value);
}
sink->cb_changed = 0;
return TRUE;
}
static gboolean
cb_sync_values_to_display (GstVaapiSink * sink, GstVaapiDisplay * display)
{
guint i;
for (i = 0; i < G_N_ELEMENTS (sink->cb_values); i++) {
const guint cb_id = CB_HUE + i;
if (!(sink->cb_changed & (1U << cb_id)))
continue;
if (!gst_vaapi_display_has_property (display, cb_map[i].prop_name)) {
GST_INFO_OBJECT (sink, "backend does not handle %s", cb_map[i].prop_name);
continue;
}
g_object_set_property (G_OBJECT (display), cb_map[i].prop_name,
cb_get_gvalue (sink, cb_id));
}
sink->cb_changed = 0;
return TRUE;
}
#define CB_CHANNEL_FACTOR (1000.0)
static void
cb_channels_init (GstVaapiSink * sink)
{
GstVaapiDisplay *const display = GST_VAAPI_PLUGIN_BASE_DISPLAY (sink);
GstColorBalanceChannel *channel;
GParamSpecFloat *pspec;
guint i;
for (i = 0; i < G_N_ELEMENTS (sink->cb_values); i++) {
if (!gst_vaapi_display_has_property (display, cb_map[i].prop_name))
continue;
pspec = G_PARAM_SPEC_FLOAT (g_properties[PROP_HUE + i]);
if (!pspec)
continue;
channel = g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL, NULL);
channel->label = g_strdup (cb_map[i].channel_name);
channel->min_value = pspec->minimum * CB_CHANNEL_FACTOR;
channel->max_value = pspec->maximum * CB_CHANNEL_FACTOR;
sink->cb_channels = g_list_prepend (sink->cb_channels, channel);
}
if (sink->cb_channels)
sink->cb_channels = g_list_reverse (sink->cb_channels);
}
static void
cb_channels_finalize (GstVaapiSink * sink)
{
if (sink->cb_channels) {
g_list_free_full (sink->cb_channels, g_object_unref);
sink->cb_channels = NULL;
}
}
static const GList *
gst_vaapisink_color_balance_list_channels (GstColorBalance * cb)
{
GstVaapiSink *const sink = GST_VAAPISINK (cb);
if (!gst_vaapisink_ensure_display (sink))
return NULL;
if (!sink->cb_channels)
cb_channels_init (sink);
return sink->cb_channels;
}
static void
gst_vaapisink_color_balance_set_value (GstColorBalance * cb,
GstColorBalanceChannel * channel, gint value)
{
GstVaapiSink *const sink = GST_VAAPISINK (cb);
guint cb_id;
g_return_if_fail (channel->label != NULL);
if (!gst_vaapisink_ensure_display (sink))
return;
cb_id = cb_get_id_from_channel_name (sink, channel->label);
if (!cb_id)
return;
cb_set_value (sink, cb_id, value / CB_CHANNEL_FACTOR);
}
static gint
gst_vaapisink_color_balance_get_value (GstColorBalance * cb,
GstColorBalanceChannel * channel)
{
GstVaapiSink *const sink = GST_VAAPISINK (cb);
guint cb_id;
g_return_val_if_fail (channel->label != NULL, 0);
if (!gst_vaapisink_ensure_display (sink))
return 0;
cb_id = cb_get_id_from_channel_name (sink, channel->label);
if (!cb_id)
return 0;
return cb_get_value (sink, cb_id) * CB_CHANNEL_FACTOR;
}
static GstColorBalanceType
gst_vaapisink_color_balance_get_type (GstColorBalance * cb)
{
return GST_COLOR_BALANCE_HARDWARE;
}
static void
gst_vaapisink_color_balance_iface_init (GstColorBalanceInterface * iface)
{
iface->list_channels = gst_vaapisink_color_balance_list_channels;
iface->set_value = gst_vaapisink_color_balance_set_value;
iface->get_value = gst_vaapisink_color_balance_get_value;
iface->get_balance_type = gst_vaapisink_color_balance_get_type;
}
/* ------------------------------------------------------------------------ */
/* --- GstNavigation interface --- */
/* ------------------------------------------------------------------------ */
static void
gst_vaapisink_navigation_send_event (GstNavigation * navigation,
GstEvent * event)
{
GstVaapiSink *const sink = GST_VAAPISINK (navigation);
GstPad *peer;
if (!sink->window) {
gst_event_unref (event);
return;
}
if ((peer = gst_pad_get_peer (GST_VAAPI_PLUGIN_BASE_SINK_PAD (sink)))) {
GstVaapiRectangle *disp_rect = &sink->display_rect;
gdouble x, y, xscale = 1.0, yscale = 1.0;
/* We calculate scaling using the original video frames geometry to include
pixel aspect ratio scaling. */
xscale = (gdouble) sink->video_width / disp_rect->width;
yscale = (gdouble) sink->video_height / disp_rect->height;
event = gst_event_make_writable (event);
/* Converting pointer coordinates to the non scaled geometry */
if (gst_navigation_event_get_coordinates (event, &x, &y)) {
x = MIN (x, disp_rect->x + disp_rect->width);
x = MAX (x - disp_rect->x, 0);
y = MIN (y, disp_rect->y + disp_rect->height);
y = MAX (y - disp_rect->y, 0);
gst_navigation_event_set_coordinates (event, x * xscale, y * yscale);
}
if (!gst_pad_send_event (peer, gst_event_ref (event))) {
/* If upstream didn't handle the event we'll post a message with it
* for the application in case it wants to do something with it */
gst_element_post_message (GST_ELEMENT_CAST (sink),
gst_navigation_message_new_event (GST_OBJECT_CAST (sink), event));
}
gst_event_unref (event);
gst_object_unref (peer);
}
}
static void
gst_vaapisink_navigation_iface_init (GstNavigationInterface * iface)
{
iface->send_event_simple = gst_vaapisink_navigation_send_event;
}
/* ------------------------------------------------------------------------ */
/* --- Common implementation --- */
/* ------------------------------------------------------------------------ */
static gboolean
gst_vaapisink_reconfigure_window (GstVaapiSink * sink)
{
guint win_width, win_height;
gst_vaapi_window_reconfigure (sink->window);
gst_vaapi_window_get_size (sink->window, &win_width, &win_height);
if (win_width != sink->window_width || win_height != sink->window_height) {
if (!gst_vaapisink_ensure_render_rect (sink, win_width, win_height))
return FALSE;
GST_INFO ("window was resized from %ux%u to %ux%u",
sink->window_width, sink->window_height, win_width, win_height);
sink->window_width = win_width;
sink->window_height = win_height;
return TRUE;
}
return FALSE;
}
static gpointer
gst_vaapisink_event_thread (GstVaapiSink * sink)
{
GST_OBJECT_LOCK (sink);
while (!g_atomic_int_get (&sink->event_thread_cancel)) {
GST_OBJECT_UNLOCK (sink);
sink->backend->handle_events (sink);
g_usleep (G_USEC_PER_SEC / 20);
GST_OBJECT_LOCK (sink);
}
GST_OBJECT_UNLOCK (sink);
return NULL;
}
static void
gst_vaapisink_set_event_handling (GstVaapiSink * sink, gboolean handle_events)
{
GThread *thread = NULL;
if (!sink->backend || !sink->backend->event_thread_needed)
return;
GST_OBJECT_LOCK (sink);
if (handle_events && !sink->event_thread) {
/* Setup our event listening thread */
GST_DEBUG ("starting xevent thread");
if (sink->backend->pre_start_event_thread)
sink->backend->pre_start_event_thread (sink);
g_atomic_int_set (&sink->event_thread_cancel, FALSE);
sink->event_thread = g_thread_try_new ("vaapisink-events",
(GThreadFunc) gst_vaapisink_event_thread, sink, NULL);
} else if (!handle_events && sink->event_thread) {
GST_DEBUG ("stopping xevent thread");
if (sink->backend->pre_stop_event_thread)
sink->backend->pre_stop_event_thread (sink);
/* Grab thread and mark it as NULL */
thread = sink->event_thread;
sink->event_thread = NULL;
g_atomic_int_set (&sink->event_thread_cancel, TRUE);
}
GST_OBJECT_UNLOCK (sink);
/* Wait for our event thread to finish */
if (thread) {
g_thread_join (thread);
GST_DEBUG ("xevent thread stopped");
}
}
static void
gst_vaapisink_ensure_backend (GstVaapiSink * sink)
{
switch (GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE (sink)) {
#if GST_VAAPI_USE_DRM
case GST_VAAPI_DISPLAY_TYPE_DRM:
sink->backend = gst_vaapisink_backend_drm ();
break;
#endif
#if GST_VAAPI_USE_X11
case GST_VAAPI_DISPLAY_TYPE_X11:
sink->backend = gst_vaapisink_backend_x11 ();
break;
#endif
#if GST_VAAPI_USE_GLX
case GST_VAAPI_DISPLAY_TYPE_GLX:
sink->backend = gst_vaapisink_backend_x11 ();
break;
#endif
#if GST_VAAPI_USE_WAYLAND
case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
sink->backend = gst_vaapisink_backend_wayland ();
break;
#endif
default:
GST_ERROR ("failed to initialize GstVaapiSink backend");
g_assert_not_reached ();
break;
}
}
static gboolean
gst_vaapisink_ensure_render_rect (GstVaapiSink * sink, guint width,
guint height)
{
GstVaapiRectangle *const display_rect = &sink->display_rect;
guint num, den, display_par_n, display_par_d;
gboolean success;
/* Return success if caps are not set yet */
if (!sink->caps)
return TRUE;
if (!sink->keep_aspect) {
display_rect->width = width;
display_rect->height = height;
display_rect->x = 0;
display_rect->y = 0;
GST_DEBUG ("force-aspect-ratio is false; distorting while scaling video");
GST_DEBUG ("render rect (%d,%d):%ux%u",
display_rect->x, display_rect->y,
display_rect->width, display_rect->height);
return TRUE;
}
GST_DEBUG ("ensure render rect within %ux%u bounds", width, height);
gst_vaapi_display_get_pixel_aspect_ratio (GST_VAAPI_PLUGIN_BASE_DISPLAY
(sink), &display_par_n, &display_par_d);
GST_DEBUG ("display pixel-aspect-ratio %d/%d", display_par_n, display_par_d);
success = gst_video_calculate_display_ratio (&num, &den,
sink->video_width, sink->video_height,
sink->video_par_n, sink->video_par_d, display_par_n, display_par_d);
if (!success)
return FALSE;
GST_DEBUG ("video size %dx%d, calculated ratio %d/%d",
sink->video_width, sink->video_height, num, den);
display_rect->width = gst_util_uint64_scale_int (height, num, den);
if (display_rect->width <= width) {
GST_DEBUG ("keeping window height");
display_rect->height = height;
} else {
GST_DEBUG ("keeping window width");
display_rect->width = width;
display_rect->height = gst_util_uint64_scale_int (width, den, num);
}
GST_DEBUG ("scaling video to %ux%u", display_rect->width,
display_rect->height);
g_assert (display_rect->width <= width);
g_assert (display_rect->height <= height);
display_rect->x = (width - display_rect->width) / 2;
display_rect->y = (height - display_rect->height) / 2;
GST_DEBUG ("render rect (%d,%d):%ux%u",
display_rect->x, display_rect->y,
display_rect->width, display_rect->height);
return TRUE;
}
static inline gboolean
gst_vaapisink_ensure_window (GstVaapiSink * sink, guint width, guint height)
{
return sink->window || sink->backend->create_window (sink, width, height);
}
static void
gst_vaapisink_ensure_window_size (GstVaapiSink * sink, guint * width_ptr,
guint * height_ptr)
{
GstVaapiDisplay *const display = GST_VAAPI_PLUGIN_BASE_DISPLAY (sink);
GstVideoRectangle src_rect, dst_rect, out_rect;
guint num, den, display_width, display_height, display_par_n, display_par_d;
gboolean success, scale;
if (sink->foreign_window) {
*width_ptr = sink->window_width;
*height_ptr = sink->window_height;
return;
}
gst_vaapi_display_get_size (display, &display_width, &display_height);
if (sink->fullscreen) {
*width_ptr = display_width;
*height_ptr = display_height;
return;
}
gst_vaapi_display_get_pixel_aspect_ratio (display,
&display_par_n, &display_par_d);
success = gst_video_calculate_display_ratio (&num, &den,
sink->video_width, sink->video_height,
sink->video_par_n, sink->video_par_d, display_par_n, display_par_d);
if (!success) {
num = sink->video_par_n;
den = sink->video_par_d;
}
src_rect.x = 0;
src_rect.y = 0;
src_rect.w = gst_util_uint64_scale_int (sink->video_height, num, den);
src_rect.h = sink->video_height;
dst_rect.x = 0;
dst_rect.y = 0;
dst_rect.w = display_width;
dst_rect.h = display_height;
scale = (src_rect.w > dst_rect.w || src_rect.h > dst_rect.h);
gst_video_sink_center_rect (src_rect, dst_rect, &out_rect, scale);
*width_ptr = out_rect.w;
*height_ptr = out_rect.h;
}
static inline gboolean
gst_vaapisink_ensure_colorbalance (GstVaapiSink * sink)
{
return cb_sync_values_to_display (sink, GST_VAAPI_PLUGIN_BASE_DISPLAY (sink));
}
static void
gst_vaapisink_set_rotation (GstVaapiSink * sink, GstVaapiRotation rotation,
gboolean from_tag)
{
GST_OBJECT_LOCK (sink);
if (from_tag)
sink->rotation_tag = rotation;
else
sink->rotation_prop = rotation;
if (sink->rotation_prop == GST_VAAPI_ROTATION_AUTOMATIC)
sink->rotation_req = sink->rotation_tag;
else
sink->rotation_req = sink->rotation_prop;
GST_OBJECT_UNLOCK (sink);
}
static gboolean
gst_vaapisink_ensure_rotation (GstVaapiSink * sink,
gboolean recalc_display_rect)
{
GstVaapiDisplay *const display = GST_VAAPI_PLUGIN_BASE_DISPLAY (sink);
gboolean success = FALSE;
g_return_val_if_fail (display, FALSE);
if (sink->rotation == sink->rotation_req)
return TRUE;
if (!sink->use_rotation) {
GST_WARNING ("VA display does not support rotation");
goto end;
}
gst_vaapi_display_lock (display);
success = gst_vaapi_display_set_rotation (display, sink->rotation_req);
gst_vaapi_display_unlock (display);
if (!success) {
GST_ERROR ("failed to change VA display rotation mode");
goto end;
}
if (((sink->rotation + sink->rotation_req) % 180) == 90) {
/* Orientation changed */
G_PRIMITIVE_SWAP (guint, sink->video_width, sink->video_height);
G_PRIMITIVE_SWAP (gint, sink->video_par_n, sink->video_par_d);
}
if (recalc_display_rect && !sink->foreign_window)
gst_vaapisink_ensure_render_rect (sink, sink->window_width,
sink->window_height);
success = TRUE;
end:
sink->rotation = sink->rotation_req;
return success;
}
static const gchar *
get_display_type_name (GstVaapiDisplayType display_type)
{
gpointer const klass = g_type_class_peek (GST_VAAPI_TYPE_DISPLAY_TYPE);
GEnumValue *const e = g_enum_get_value (klass, display_type);
if (e)
return e->value_name;
return "<unknown-type>";
}
static void
gst_vaapisink_display_changed (GstVaapiPluginBase * plugin)
{
GstVaapiSink *const sink = GST_VAAPISINK_CAST (plugin);
GstVaapiRenderMode render_mode;
GST_INFO ("created %s %p", get_display_type_name (plugin->display_type),
plugin->display);
gst_vaapisink_ensure_backend (sink);
sink->use_overlay =
gst_vaapi_display_get_render_mode (plugin->display, &render_mode) &&
render_mode == GST_VAAPI_RENDER_MODE_OVERLAY;
GST_DEBUG ("use %s rendering mode",
sink->use_overlay ? "overlay" : "texture");
/* Keep our own colorbalance values, should we have any change pending */
if (!sink->cb_changed)
cb_sync_values_from_display (sink, plugin->display);
sink->use_rotation = gst_vaapi_display_has_property (plugin->display,
GST_VAAPI_DISPLAY_PROP_ROTATION);
}
static gboolean
gst_vaapisink_start (GstBaseSink * base_sink)
{
GstVaapiSink *const sink = GST_VAAPISINK_CAST (base_sink);
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (base_sink);
if (!gst_vaapisink_ensure_display (sink))
return FALSE;
/* Ensures possible raw caps earlier to avoid race conditions at
* get_caps() */
if (!gst_vaapi_plugin_base_get_allowed_sinkpad_raw_caps (plugin))
return FALSE;
return TRUE;
}
static gboolean
gst_vaapisink_stop (GstBaseSink * base_sink)
{
GstVaapiSink *const sink = GST_VAAPISINK_CAST (base_sink);
gst_vaapisink_set_event_handling (sink, FALSE);
gst_buffer_replace (&sink->video_buffer, NULL);
gst_vaapi_window_replace (&sink->window, NULL);
gst_vaapi_plugin_base_close (GST_VAAPI_PLUGIN_BASE (sink));
return TRUE;
}
static GstCaps *
gst_vaapisink_get_caps_impl (GstBaseSink * base_sink)
{
GstVaapiSink *const sink = GST_VAAPISINK_CAST (base_sink);
GstCaps *out_caps, *raw_caps, *feature_caps;
static const char surface_caps_str[] =
GST_VAAPI_MAKE_SURFACE_CAPS ";"
GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE
"," GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
"{ ENCODED, NV12, I420, YV12 }");
GstCapsFeatures *features;
if (!GST_VAAPI_PLUGIN_BASE_DISPLAY (sink))
return gst_static_pad_template_get_caps (&gst_vaapisink_sink_factory);
out_caps = gst_caps_from_string (surface_caps_str);
raw_caps =
gst_vaapi_plugin_base_get_allowed_sinkpad_raw_caps (GST_VAAPI_PLUGIN_BASE
(sink));
if (!raw_caps)
return out_caps;
out_caps = gst_caps_make_writable (out_caps);
gst_caps_append (out_caps, gst_caps_copy (raw_caps));
feature_caps = gst_caps_copy (raw_caps);
features = gst_caps_features_new_static_str
(GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION, NULL);
gst_caps_set_features (feature_caps, 0, features);
gst_caps_append (out_caps, feature_caps);
return out_caps;
}
static inline GstCaps *
gst_vaapisink_get_caps (GstBaseSink * base_sink, GstCaps * filter)
{
GstCaps *caps, *out_caps;
caps = gst_vaapisink_get_caps_impl (base_sink);
if (caps && filter) {
out_caps = gst_caps_intersect_full (caps, filter, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (caps);
} else
out_caps = caps;
return out_caps;
}
static void
update_colorimetry (GstVaapiSink * sink, GstVideoColorimetry * cinfo)
{
if (gst_video_colorimetry_matches (cinfo, GST_VIDEO_COLORIMETRY_BT601))
sink->color_standard = GST_VAAPI_COLOR_STANDARD_ITUR_BT_601;
else if (gst_video_colorimetry_matches (cinfo, GST_VIDEO_COLORIMETRY_BT709))
sink->color_standard = GST_VAAPI_COLOR_STANDARD_ITUR_BT_709;
else if (gst_video_colorimetry_matches (cinfo,
GST_VIDEO_COLORIMETRY_SMPTE240M))
sink->color_standard = GST_VAAPI_COLOR_STANDARD_SMPTE_240M;
else
sink->color_standard = 0;
#ifndef GST_DISABLE_GST_DEBUG
{
gchar *const colorimetry_string = gst_video_colorimetry_to_string (cinfo);
GST_DEBUG ("colorimetry %s", colorimetry_string);
g_free (colorimetry_string);
}
#endif
}
static gboolean
gst_vaapisink_set_caps (GstBaseSink * base_sink, GstCaps * caps)
{
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (base_sink);
GstVaapiSink *const sink = GST_VAAPISINK_CAST (base_sink);
GstVideoInfo *const vip = GST_VAAPI_PLUGIN_BASE_SINK_PAD_INFO (sink);
GstVaapiDisplay *display;
guint win_width, win_height;
if (!gst_vaapisink_ensure_display (sink))
return FALSE;
display = GST_VAAPI_PLUGIN_BASE_DISPLAY (sink);
if (!gst_vaapi_plugin_base_set_caps (plugin, caps, NULL))
return FALSE;
sink->video_width = GST_VIDEO_INFO_WIDTH (vip);
sink->video_height = GST_VIDEO_INFO_HEIGHT (vip);
sink->video_par_n = GST_VIDEO_INFO_PAR_N (vip);
sink->video_par_d = GST_VIDEO_INFO_PAR_D (vip);
if (sink->video_par_n == 0)
sink->video_par_n = 1;
GST_DEBUG ("video pixel-aspect-ratio %d/%d",
sink->video_par_n, sink->video_par_d);
update_colorimetry (sink, &GST_VIDEO_INFO_COLORIMETRY (vip));
gst_caps_replace (&sink->caps, caps);
/* Reset the rotation to the default when new caps are coming in. This
* forces re-evaluating if the rotation needs to be done */
sink->rotation = DEFAULT_ROTATION;
gst_vaapisink_ensure_colorbalance (sink);
gst_vaapisink_ensure_rotation (sink, FALSE);
if (GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE (sink) == GST_VAAPI_DISPLAY_TYPE_DRM)
return TRUE;
gst_vaapisink_ensure_window_size (sink, &win_width, &win_height);
if (sink->window) {
if (!sink->foreign_window || sink->fullscreen)
gst_vaapi_window_set_size (sink->window, win_width, win_height);
} else {
gst_vaapi_display_lock (display);
gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY (sink));
gst_vaapi_display_unlock (display);
if (sink->window)
return TRUE;
if (!gst_vaapisink_ensure_window (sink, win_width, win_height))
return FALSE;
gst_vaapi_window_set_fullscreen (sink->window, sink->fullscreen);
gst_vaapi_window_show (sink->window);
gst_vaapi_window_get_size (sink->window, &win_width, &win_height);
gst_vaapisink_set_event_handling (sink, sink->handle_events);
}
sink->window_width = win_width;
sink->window_height = win_height;
GST_DEBUG ("window size %ux%u", win_width, win_height);
return gst_vaapisink_ensure_render_rect (sink, win_width, win_height);
}
static GstFlowReturn
gst_vaapisink_show_frame_unlocked (GstVaapiSink * sink, GstBuffer * src_buffer)
{
GstVaapiVideoMeta *meta;
GstVaapiSurfaceProxy *proxy;
GstVaapiSurface *surface;
GstBuffer *buffer;
GstBuffer *old_buf;
guint flags;
GstVaapiRectangle *surface_rect = NULL;
GstVaapiRectangle tmp_rect;
GstFlowReturn ret;
gint32 view_id;
GstVideoCropMeta *crop_meta;
if (!src_buffer) {
if (sink->video_buffer)
src_buffer = sink->video_buffer;
else
return GST_FLOW_OK;
}
crop_meta = gst_buffer_get_video_crop_meta (src_buffer);
if (crop_meta) {
surface_rect = &tmp_rect;
surface_rect->x = crop_meta->x;
surface_rect->y = crop_meta->y;
surface_rect->width = crop_meta->width;
surface_rect->height = crop_meta->height;
}
ret = gst_vaapi_plugin_base_get_input_buffer (GST_VAAPI_PLUGIN_BASE (sink),
src_buffer, &buffer);
if (ret == GST_FLOW_NOT_SUPPORTED)
return GST_FLOW_OK; /* let's ignore the frame if it couldn't be uploaded */
if (ret != GST_FLOW_OK)
return ret;
meta = gst_buffer_get_vaapi_video_meta (buffer);
if (gst_vaapi_video_meta_get_display (meta) !=
GST_VAAPI_PLUGIN_BASE_DISPLAY (sink))
goto different_display;
proxy = gst_vaapi_video_meta_get_surface_proxy (meta);
if (!proxy)
goto no_surface;
surface = gst_vaapi_video_meta_get_surface (meta);
if (!surface)
goto no_surface;
/* Validate view component to display */
view_id = GST_VAAPI_SURFACE_PROXY_VIEW_ID (proxy);
if (G_UNLIKELY (sink->view_id == -1))
sink->view_id = view_id;
else if (sink->view_id != view_id) {
ret = GST_FLOW_OK;
goto done;
}
gst_vaapisink_ensure_colorbalance (sink);
gst_vaapisink_ensure_rotation (sink, TRUE);
GST_TRACE_OBJECT (sink, "render surface %" GST_VAAPI_ID_FORMAT,
GST_VAAPI_ID_ARGS (gst_vaapi_surface_get_id (surface)));
if (!surface_rect)
surface_rect = (GstVaapiRectangle *)
gst_vaapi_video_meta_get_render_rect (meta);
if (surface_rect)
GST_DEBUG ("render rect (%d,%d), size %ux%u",
surface_rect->x, surface_rect->y,
surface_rect->width, surface_rect->height);
flags = gst_vaapi_video_meta_get_render_flags (meta);
/* Append default color standard obtained from caps if none was
available on a per-buffer basis */
if (!(flags & GST_VAAPI_COLOR_STANDARD_MASK))
flags |= sink->color_standard;
if (!gst_vaapi_apply_composition (surface, src_buffer))
GST_WARNING ("could not update subtitles");
if (!sink->backend->render_surface (sink, surface, surface_rect, flags))
goto error;
if (sink->signal_handoffs)
g_signal_emit (sink, gst_vaapisink_signals[HANDOFF_SIGNAL], 0, buffer);
/* Retain VA surface until the next one is displayed */
old_buf = sink->video_buffer;
sink->video_buffer = gst_buffer_ref (buffer);
/* Need to release the lock while releasing old buffer, otherwise a
* deadlock is possible */
gst_vaapi_display_unlock (GST_VAAPI_PLUGIN_BASE_DISPLAY (sink));
if (old_buf)
gst_buffer_unref (old_buf);
gst_vaapi_display_lock (GST_VAAPI_PLUGIN_BASE_DISPLAY (sink));
ret = GST_FLOW_OK;
done:
gst_buffer_unref (buffer);
return ret;
/* ERRORS */
error:
{
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE,
("Internal error: could not render surface"), (NULL));
ret = GST_FLOW_ERROR;
goto done;
}
no_surface:
{
/* No surface or surface proxy. That's very bad! */
GST_WARNING_OBJECT (sink, "could not get surface");
ret = GST_FLOW_ERROR;
goto done;
}
different_display:
{
GST_WARNING_OBJECT (sink, "incoming surface has different VAAPI Display");
ret = GST_FLOW_ERROR;
goto done;
}
}
static GstFlowReturn
gst_vaapisink_show_frame (GstVideoSink * video_sink, GstBuffer * src_buffer)
{
GstVaapiSink *const sink = GST_VAAPISINK_CAST (video_sink);
GstFlowReturn ret;
/* We need at least to protect the gst_vaapi_aplpy_composition()
* call to prevent a race during subpicture destruction.
* FIXME: a less coarse grained lock could be used, though */
gst_vaapi_display_lock (GST_VAAPI_PLUGIN_BASE_DISPLAY (sink));
ret = gst_vaapisink_show_frame_unlocked (sink, src_buffer);
gst_vaapi_display_unlock (GST_VAAPI_PLUGIN_BASE_DISPLAY (sink));
return ret;
}
static gboolean
gst_vaapisink_propose_allocation (GstBaseSink * base_sink, GstQuery * query)
{
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (base_sink);
if (!gst_vaapi_plugin_base_propose_allocation (plugin, query))
return FALSE;
gst_query_add_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE, NULL);
gst_query_add_allocation_meta (query,
GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
return TRUE;
}
static gboolean
gst_vaapisink_query (GstBaseSink * base_sink, GstQuery * query)
{
GstElement *const element = GST_ELEMENT (base_sink);
gboolean ret = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
ret = gst_vaapi_handle_context_query (element, query);
break;
default:
ret = GST_BASE_SINK_CLASS (gst_vaapisink_parent_class)->query (base_sink,
query);
break;
}
return ret;
}
static void
gst_vaapisink_destroy (GstVaapiSink * sink)
{
cb_channels_finalize (sink);
gst_buffer_replace (&sink->video_buffer, NULL);
gst_caps_replace (&sink->caps, NULL);
}
static void
gst_vaapisink_finalize (GObject * object)
{
gst_vaapisink_destroy (GST_VAAPISINK_CAST (object));
gst_vaapi_plugin_base_finalize (GST_VAAPI_PLUGIN_BASE (object));
G_OBJECT_CLASS (gst_vaapisink_parent_class)->finalize (object);
}
static void
gst_vaapisink_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstVaapiSink *const sink = GST_VAAPISINK_CAST (object);
switch (prop_id) {
case PROP_DISPLAY_TYPE:
gst_vaapi_plugin_base_set_display_type (GST_VAAPI_PLUGIN_BASE (sink),
g_value_get_enum (value));
break;
case PROP_DISPLAY_NAME:
gst_vaapi_plugin_base_set_display_name (GST_VAAPI_PLUGIN_BASE (sink),
g_value_get_string (value));
break;
case PROP_FULLSCREEN:
sink->fullscreen = g_value_get_boolean (value);
break;
case PROP_VIEW_ID:
sink->view_id = g_value_get_int (value);
break;
case PROP_ROTATION:
gst_vaapisink_set_rotation (sink, g_value_get_enum (value), FALSE);
break;
case PROP_FORCE_ASPECT_RATIO:
sink->keep_aspect = g_value_get_boolean (value);
break;
case PROP_SIGNAL_HANDOFFS:
sink->signal_handoffs = g_value_get_boolean (value);
break;
case PROP_HUE:
case PROP_SATURATION:
case PROP_BRIGHTNESS:
case PROP_CONTRAST:
cb_set_value (sink, (prop_id - PROP_HUE) + CB_HUE,
g_value_get_float (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vaapisink_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstVaapiSink *const sink = GST_VAAPISINK_CAST (object);
switch (prop_id) {
case PROP_DISPLAY_TYPE:
g_value_set_enum (value, GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE (sink));
break;
case PROP_DISPLAY_NAME:
g_value_set_string (value, GST_VAAPI_PLUGIN_BASE_DISPLAY_NAME (sink));
break;
case PROP_FULLSCREEN:
g_value_set_boolean (value, sink->fullscreen);
break;
case PROP_VIEW_ID:
g_value_set_int (value, sink->view_id);
break;
case PROP_ROTATION:
g_value_set_enum (value, sink->rotation);
break;
case PROP_FORCE_ASPECT_RATIO:
g_value_set_boolean (value, sink->keep_aspect);
break;
case PROP_SIGNAL_HANDOFFS:
g_value_set_boolean (value, sink->signal_handoffs);
break;
case PROP_HUE:
case PROP_SATURATION:
case PROP_BRIGHTNESS:
case PROP_CONTRAST:
g_value_set_float (value, cb_get_value (sink,
(prop_id - PROP_HUE) + CB_HUE));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_vaapisink_unlock (GstBaseSink * base_sink)
{
GstVaapiSink *const sink = GST_VAAPISINK_CAST (base_sink);
if (sink->window)
return gst_vaapi_window_unblock (sink->window);
return TRUE;
}
static gboolean
gst_vaapisink_unlock_stop (GstBaseSink * base_sink)
{
GstVaapiSink *const sink = GST_VAAPISINK_CAST (base_sink);
if (sink->window)
return gst_vaapi_window_unblock_cancel (sink->window);
return TRUE;
}
static gboolean
gst_vaapisink_event (GstBaseSink * base_sink, GstEvent * event)
{
gboolean res = TRUE;
GstTagList *taglist;
gchar *orientation;
GstVaapiSink *const sink = GST_VAAPISINK_CAST (base_sink);
GST_DEBUG_OBJECT (sink, "handling event %s", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_TAG:
gst_event_parse_tag (event, &taglist);
if (gst_tag_list_get_string (taglist, GST_TAG_IMAGE_ORIENTATION,
&orientation)) {
if (!g_strcmp0 ("rotate-0", orientation)) {
gst_vaapisink_set_rotation (sink, GST_VAAPI_ROTATION_0, TRUE);
} else if (!g_strcmp0 ("rotate-90", orientation)) {
gst_vaapisink_set_rotation (sink, GST_VAAPI_ROTATION_90, TRUE);
} else if (!g_strcmp0 ("rotate-180", orientation)) {
gst_vaapisink_set_rotation (sink, GST_VAAPI_ROTATION_180, TRUE);
} else if (!g_strcmp0 ("rotate-270", orientation)) {
gst_vaapisink_set_rotation (sink, GST_VAAPI_ROTATION_270, TRUE);
}
/* Do not support for flip yet.
* It should be implemented in the near future.
* See https://bugs.freedesktop.org/show_bug.cgi?id=90654
*/
g_free (orientation);
}
break;
default:
break;
}
res =
GST_BASE_SINK_CLASS (gst_vaapisink_parent_class)->event (base_sink,
event);
return res;
}
static void
gst_vaapisink_class_init (GstVaapiSinkClass * klass)
{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
GstElementClass *const element_class = GST_ELEMENT_CLASS (klass);
GstBaseSinkClass *const basesink_class = GST_BASE_SINK_CLASS (klass);
GstVideoSinkClass *const videosink_class = GST_VIDEO_SINK_CLASS (klass);
GstVaapiPluginBaseClass *const base_plugin_class =
GST_VAAPI_PLUGIN_BASE_CLASS (klass);
GST_DEBUG_CATEGORY_INIT (gst_debug_vaapisink,
GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
gst_vaapi_plugin_base_class_init (base_plugin_class);
base_plugin_class->has_interface = gst_vaapisink_has_interface;
base_plugin_class->display_changed = gst_vaapisink_display_changed;
object_class->finalize = gst_vaapisink_finalize;
object_class->set_property = gst_vaapisink_set_property;
object_class->get_property = gst_vaapisink_get_property;
basesink_class->start = gst_vaapisink_start;
basesink_class->stop = gst_vaapisink_stop;
basesink_class->get_caps = gst_vaapisink_get_caps;
basesink_class->set_caps = gst_vaapisink_set_caps;
basesink_class->query = GST_DEBUG_FUNCPTR (gst_vaapisink_query);
basesink_class->propose_allocation = gst_vaapisink_propose_allocation;
basesink_class->unlock = gst_vaapisink_unlock;
basesink_class->unlock_stop = gst_vaapisink_unlock_stop;
basesink_class->event = gst_vaapisink_event;
videosink_class->show_frame = GST_DEBUG_FUNCPTR (gst_vaapisink_show_frame);
element_class->set_context = gst_vaapi_base_set_context;
gst_element_class_set_static_metadata (element_class,
"VA-API sink", "Sink/Video", GST_PLUGIN_DESC,
"Gwenole Beauchesne <gwenole.beauchesne@intel.com>");
gst_element_class_add_static_pad_template (element_class,
&gst_vaapisink_sink_factory);
/**
* GstVaapiSink:display:
*
* The type of display to use.
*/
g_properties[PROP_DISPLAY_TYPE] =
g_param_spec_enum ("display",
"display type",
"display type to use",
GST_VAAPI_TYPE_DISPLAY_TYPE,
GST_VAAPI_DISPLAY_TYPE_ANY, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GstVaapiSink:display-name:
*
* The native display name.
*/
g_properties[PROP_DISPLAY_NAME] =
g_param_spec_string ("display-name",
"display name",
"display name to use", NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GstVaapiSink:fullscreen:
*
* Selects whether fullscreen mode is enabled or not.
*/
g_properties[PROP_FULLSCREEN] =
g_param_spec_boolean ("fullscreen",
"Fullscreen",
"Requests window in fullscreen state",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GstVaapiSink:rotation:
*
* The VA display rotation mode, expressed as a #GstVaapiRotation.
*/
g_properties[PROP_ROTATION] =
g_param_spec_enum (GST_VAAPI_DISPLAY_PROP_ROTATION,
"rotation",
"The display rotation mode",
GST_VAAPI_TYPE_ROTATION,
DEFAULT_ROTATION, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GstVaapiSink:force-aspect-ratio:
*
* When enabled, scaling respects video aspect ratio; when disabled,
* the video is distorted to fit the window.
*/
g_properties[PROP_FORCE_ASPECT_RATIO] =
g_param_spec_boolean ("force-aspect-ratio",
"Force aspect ratio",
"When enabled, scaling will respect original aspect ratio",
TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GstVaapiSink:signal-handoffs:
*
* Send a signal after rendering the buffer.
*/
g_properties[PROP_SIGNAL_HANDOFFS] =
g_param_spec_boolean ("signal-handoffs", "Signal handoffs",
"Send a signal after rendering the buffer", DEFAULT_SIGNAL_HANDOFFS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GstVaapiSink:view-id:
*
* When not set to -1, the displayed frame will always be the one
* that matches the view-id of the very first displayed frame. Any
* other number will indicate the desire to display the supplied
* view-id only.
*/
g_properties[PROP_VIEW_ID] =
g_param_spec_int ("view-id",
"View ID",
"ID of the view component of interest to display",
-1, G_MAXINT32, -1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
/**
* GstVaapiSink:hue:
*
* The VA display hue, expressed as a float value. Range is -180.0
* to 180.0. Default value is 0.0 and represents no modification.
*/
g_properties[PROP_HUE] =
g_param_spec_float (GST_VAAPI_DISPLAY_PROP_HUE,
"hue", "The display hue value", -180.0, 180.0, 0.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
/**
* GstVaapiSink:saturation:
*
* The VA display saturation, expressed as a float value. Range is
* 0.0 to 2.0. Default value is 1.0 and represents no modification.
*/
g_properties[PROP_SATURATION] =
g_param_spec_float (GST_VAAPI_DISPLAY_PROP_SATURATION,
"saturation",
"The display saturation value", 0.0, 2.0, 1.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
/**
* GstVaapiSink:brightness:
*
* The VA display brightness, expressed as a float value. Range is
* -1.0 to 1.0. Default value is 0.0 and represents no modification.
*/
g_properties[PROP_BRIGHTNESS] =
g_param_spec_float (GST_VAAPI_DISPLAY_PROP_BRIGHTNESS,
"brightness",
"The display brightness value", -1.0, 1.0, 0.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
/**
* GstVaapiSink:contrast:
*
* The VA display contrast, expressed as a float value. Range is 0.0
* to 2.0. Default value is 1.0 and represents no modification.
*/
g_properties[PROP_CONTRAST] =
g_param_spec_float (GST_VAAPI_DISPLAY_PROP_CONTRAST,
"contrast",
"The display contrast value", 0.0, 2.0, 1.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
g_object_class_install_properties (object_class, N_PROPERTIES, g_properties);
/**
* GstVaapiSink::handoff:
* @object: the #GstVaapiSink instance
* @buffer: the buffer that was rendered
*
* This signal gets emitted after rendering the frame.
*/
gst_vaapisink_signals[HANDOFF_SIGNAL] =
g_signal_new ("handoff", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_generic,
G_TYPE_NONE, 1, GST_TYPE_BUFFER | G_SIGNAL_TYPE_STATIC_SCOPE);
}
static void
gst_vaapisink_init (GstVaapiSink * sink)
{
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (sink);
guint i;
gst_vaapi_plugin_base_init (plugin, GST_CAT_DEFAULT);
gst_vaapi_plugin_base_set_display_type (plugin, DEFAULT_DISPLAY_TYPE);
sink->video_par_n = 1;
sink->video_par_d = 1;
sink->view_id = -1;
sink->handle_events = TRUE;
sink->rotation = DEFAULT_ROTATION;
sink->rotation_req = DEFAULT_ROTATION;
sink->rotation_tag = DEFAULT_ROTATION;
sink->keep_aspect = TRUE;
sink->signal_handoffs = DEFAULT_SIGNAL_HANDOFFS;
gst_video_info_init (&sink->video_info);
for (i = 0; i < G_N_ELEMENTS (sink->cb_values); i++)
g_value_init (&sink->cb_values[i], G_TYPE_FLOAT);
}
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