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gstreamer/gst/vaapi/gstvaapisink.c
Gwenole Beauchesne e3dcd33114 plugins: factor out support for raw YUV buffers on sink pads. 
Factor out propose_allocation() hooks, creation of video buffer pool
for the sink pad, conversion from raw YUV buffers to VA surface backed
buffers. Update vaapidecode, vaapiencode and vaapipostproc to cope
with the new GstVaapiPluginBase abilities.
2013-12-18 16:38:57 +01:00

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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) 2011-2013 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:gstvaapisink
* @short_description: A VA-API based videosink
*
* 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.
*/
#include "gst/vaapi/sysdeps.h"
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/vaapi/gstvaapivalue.h>
#if USE_DRM
# include <gst/vaapi/gstvaapidisplay_drm.h>
#endif
#if USE_X11
# include <gst/vaapi/gstvaapidisplay_x11.h>
# include <gst/vaapi/gstvaapiwindow_x11.h>
#endif
#if USE_GLX
# include <gst/vaapi/gstvaapidisplay_glx.h>
# include <gst/vaapi/gstvaapiwindow_glx.h>
#endif
#if USE_WAYLAND
# include <gst/vaapi/gstvaapidisplay_wayland.h>
# include <gst/vaapi/gstvaapiwindow_wayland.h>
#endif
/* Supported interfaces */
#if GST_CHECK_VERSION(1,0,0)
# include <gst/video/videooverlay.h>
#else
# include <gst/interfaces/xoverlay.h>
# define GST_TYPE_VIDEO_OVERLAY GST_TYPE_X_OVERLAY
# define GST_VIDEO_OVERLAY GST_X_OVERLAY
# define GstVideoOverlay GstXOverlay
# define GstVideoOverlayInterface GstXOverlayClass
# define gst_video_overlay_prepare_window_handle(sink) \
gst_x_overlay_prepare_xwindow_id(sink)
# define gst_video_overlay_got_window_handle(sink, window_handle) \
gst_x_overlay_got_window_handle(sink, window_handle)
#endif
#include "gstvaapisink.h"
#include "gstvaapipluginutil.h"
#include "gstvaapivideometa.h"
#if GST_CHECK_VERSION(1,0,0)
#include "gstvaapivideobufferpool.h"
#include "gstvaapivideomemory.h"
#endif
#define GST_PLUGIN_NAME "vaapisink"
#define GST_PLUGIN_DESC "A VA-API based videosink"
GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapisink);
#define GST_CAT_DEFAULT gst_debug_vaapisink
/* Default template */
static const char gst_vaapisink_sink_caps_str[] =
#if GST_CHECK_VERSION(1,1,0)
GST_VIDEO_CAPS_MAKE_WITH_FEATURES(
GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE, "{ ENCODED, NV12, I420, YV12 }");
#else
#if GST_CHECK_VERSION(1,0,0)
GST_VIDEO_CAPS_MAKE(GST_VIDEO_FORMATS_ALL) "; "
#else
"video/x-raw-yuv, "
"width = (int) [ 1, MAX ], "
"height = (int) [ 1, MAX ]; "
#endif
GST_VAAPI_SURFACE_CAPS;
#endif
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;
}
static void
gst_vaapisink_video_overlay_iface_init(GstVideoOverlayInterface *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))
enum {
PROP_0,
PROP_DISPLAY_TYPE,
PROP_FULLSCREEN,
PROP_SYNCHRONOUS,
PROP_USE_GLX,
PROP_USE_REFLECTION,
PROP_ROTATION,
PROP_FORCE_ASPECT_RATIO,
};
#define DEFAULT_DISPLAY_TYPE GST_VAAPI_DISPLAY_TYPE_ANY
#define DEFAULT_ROTATION GST_VAAPI_ROTATION_0
/* GstVideoOverlay interface */
#if USE_X11
static gboolean
gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id);
#endif
static GstFlowReturn
gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer);
static void
gst_vaapisink_video_overlay_set_window_handle(GstVideoOverlay *overlay,
guintptr window)
{
GstVaapiSink * const sink = GST_VAAPISINK(overlay);
GstVaapiDisplayType 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;
switch (display_type) {
#if USE_X11
case GST_VAAPI_DISPLAY_TYPE_X11:
gst_vaapisink_ensure_window_xid(sink, window);
break;
#endif
default:
break;
}
}
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;
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);
GstBaseSink * const base_sink = GST_BASE_SINK(overlay);
GstBuffer *buffer;
if (sink->use_overlay)
buffer = sink->video_buffer ? gst_buffer_ref(sink->video_buffer) : NULL;
else {
#if GST_CHECK_VERSION(1,0,0)
GstSample * const sample = gst_base_sink_get_last_sample(base_sink);
if (!sample)
return;
buffer = gst_buffer_ref(gst_sample_get_buffer(sample));
gst_sample_unref(sample);
#else
buffer = gst_base_sink_get_last_buffer(base_sink);
#endif
}
if (buffer) {
gst_vaapisink_show_frame(base_sink, buffer);
gst_buffer_unref(buffer);
}
}
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;
}
static void
gst_vaapisink_destroy(GstVaapiSink *sink)
{
gst_buffer_replace(&sink->video_buffer, NULL);
#if USE_GLX
gst_vaapi_texture_replace(&sink->texture, NULL);
#endif
gst_caps_replace(&sink->caps, NULL);
}
#if USE_X11
/* 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;
}
#endif
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 inline gboolean
gst_vaapisink_ensure_display(GstVaapiSink *sink)
{
return gst_vaapi_plugin_base_ensure_display(GST_VAAPI_PLUGIN_BASE(sink));
}
static void
gst_vaapisink_display_changed(GstVaapiPluginBase *plugin)
{
GstVaapiSink * const sink = GST_VAAPISINK(plugin);
GstVaapiRenderMode render_mode;
GST_INFO("created %s %p", get_display_type_name(plugin->display_type),
plugin->display);
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");
sink->use_rotation = gst_vaapi_display_has_property(plugin->display,
GST_VAAPI_DISPLAY_PROP_ROTATION);
}
static gboolean
gst_vaapisink_ensure_uploader(GstVaapiSink *sink)
{
if (!gst_vaapisink_ensure_display(sink))
return FALSE;
if (!gst_vaapi_plugin_base_ensure_uploader(GST_VAAPI_PLUGIN_BASE(sink)))
return FALSE;
return TRUE;
}
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 void
gst_vaapisink_ensure_window_size(GstVaapiSink *sink, guint *pwidth, guint *pheight)
{
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) {
*pwidth = sink->window_width;
*pheight = sink->window_height;
return;
}
gst_vaapi_display_get_size(display, &display_width, &display_height);
if (sink->fullscreen) {
*pwidth = display_width;
*pheight = 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);
*pwidth = out_rect.w;
*pheight = out_rect.h;
}
static inline gboolean
gst_vaapisink_ensure_window(GstVaapiSink *sink, guint width, guint height)
{
GstVaapiDisplay * const display = GST_VAAPI_PLUGIN_BASE_DISPLAY(sink);
if (!sink->window) {
const GstVaapiDisplayType display_type =
GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink);
switch (display_type) {
#if USE_GLX
case GST_VAAPI_DISPLAY_TYPE_GLX:
sink->window = gst_vaapi_window_glx_new(display, width, height);
goto notify_video_overlay_interface;
#endif
#if USE_X11
case GST_VAAPI_DISPLAY_TYPE_X11:
sink->window = gst_vaapi_window_x11_new(display, width, height);
notify_video_overlay_interface:
if (!sink->window)
break;
gst_video_overlay_got_window_handle(
GST_VIDEO_OVERLAY(sink),
gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window))
);
break;
#endif
#if USE_WAYLAND
case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
sink->window = gst_vaapi_window_wayland_new(display, width, height);
break;
#endif
default:
GST_ERROR("unsupported display type %d", display_type);
return FALSE;
}
}
return sink->window != NULL;
}
#if USE_X11
static gboolean
gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id)
{
GstVaapiDisplay *display;
Window rootwin;
unsigned int width, height, border_width, depth;
int x, y;
XID xid = window_id;
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)
return TRUE;
gst_vaapi_window_replace(&sink->window, NULL);
switch (GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink)) {
#if USE_GLX
case GST_VAAPI_DISPLAY_TYPE_GLX:
sink->window = gst_vaapi_window_glx_new_with_xid(display, xid);
break;
#endif
case GST_VAAPI_DISPLAY_TYPE_X11:
sink->window = gst_vaapi_window_x11_new_with_xid(display, xid);
break;
default:
GST_ERROR("unsupported display type %d",
GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink));
return FALSE;
}
return sink->window != NULL;
}
#endif
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 gboolean
gst_vaapisink_start(GstBaseSink *base_sink)
{
GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
if (!gst_vaapi_plugin_base_open(GST_VAAPI_PLUGIN_BASE(sink)))
return FALSE;
return gst_vaapisink_ensure_uploader(sink);
}
static gboolean
gst_vaapisink_stop(GstBaseSink *base_sink)
{
GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
gst_buffer_replace(&sink->video_buffer, NULL);
#if GST_CHECK_VERSION(1,0,0)
g_clear_object(&sink->video_buffer_pool);
#endif
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(base_sink);
GstCaps *out_caps, *yuv_caps;
#if GST_CHECK_VERSION(1,1,0)
out_caps = gst_static_pad_template_get_caps(&gst_vaapisink_sink_factory);
#else
out_caps = gst_caps_from_string(GST_VAAPI_SURFACE_CAPS);
#endif
if (!out_caps)
return NULL;
if (gst_vaapisink_ensure_uploader(sink)) {
yuv_caps = GST_VAAPI_PLUGIN_BASE_UPLOADER_CAPS(sink);
if (yuv_caps) {
out_caps = gst_caps_make_writable(out_caps);
gst_caps_append(out_caps, gst_caps_copy(yuv_caps));
}
}
return out_caps;
}
#if GST_CHECK_VERSION(1,0,0)
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;
}
#else
#define gst_vaapisink_get_caps gst_vaapisink_get_caps_impl
#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(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 USE_DRM
if (GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink) == GST_VAAPI_DISPLAY_TYPE_DRM)
return TRUE;
#endif
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);
GST_DEBUG("video pixel-aspect-ratio %d/%d",
sink->video_par_n, sink->video_par_d);
gst_caps_replace(&sink->caps, caps);
gst_vaapisink_ensure_rotation(sink, FALSE);
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);
}
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);
}
#if USE_GLX
static void
render_background(GstVaapiSink *sink)
{
/* Original code from Mirco Muller (MacSlow):
<http://cgit.freedesktop.org/~macslow/gl-gst-player/> */
GLfloat fStartX = 0.0f;
GLfloat fStartY = 0.0f;
GLfloat fWidth = (GLfloat)sink->window_width;
GLfloat fHeight = (GLfloat)sink->window_height;
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_QUADS);
{
/* top third, darker grey to white */
glColor3f(0.85f, 0.85f, 0.85f);
glVertex3f(fStartX, fStartY, 0.0f);
glColor3f(0.85f, 0.85f, 0.85f);
glVertex3f(fStartX + fWidth, fStartY, 0.0f);
glColor3f(1.0f, 1.0f, 1.0f);
glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
glColor3f(1.0f, 1.0f, 1.0f);
glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
/* middle third, just plain white */
glColor3f(1.0f, 1.0f, 1.0f);
glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
/* bottom third, white to lighter grey */
glColor3f(1.0f, 1.0f, 1.0f);
glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
glColor3f(1.0f, 1.0f, 1.0f);
glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
glColor3f(0.62f, 0.66f, 0.69f);
glVertex3f(fStartX + fWidth, fStartY + fHeight, 0.0f);
glColor3f(0.62f, 0.66f, 0.69f);
glVertex3f(fStartX, fStartY + fHeight, 0.0f);
}
glEnd();
}
static void
render_frame(GstVaapiSink *sink, GstVaapiSurface *surface,
const GstVaapiRectangle *surface_rect)
{
const guint x1 = sink->display_rect.x;
const guint x2 = sink->display_rect.x + sink->display_rect.width;
const guint y1 = sink->display_rect.y;
const guint y2 = sink->display_rect.y + sink->display_rect.height;
gfloat tx1, tx2, ty1, ty2;
guint width, height;
if (surface_rect) {
gst_vaapi_surface_get_size(surface, &width, &height);
tx1 = (gfloat)surface_rect->x / width;
ty1 = (gfloat)surface_rect->y / height;
tx2 = (gfloat)(surface_rect->x + surface_rect->width) / width;
ty2 = (gfloat)(surface_rect->y + surface_rect->height) / height;
}
else {
tx1 = 0.0f;
ty1 = 0.0f;
tx2 = 1.0f;
ty2 = 1.0f;
}
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glBegin(GL_QUADS);
{
glTexCoord2f(tx1, ty1); glVertex2i(x1, y1);
glTexCoord2f(tx1, ty2); glVertex2i(x1, y2);
glTexCoord2f(tx2, ty2); glVertex2i(x2, y2);
glTexCoord2f(tx2, ty1); glVertex2i(x2, y1);
}
glEnd();
}
static void
render_reflection(GstVaapiSink *sink)
{
const guint x1 = sink->display_rect.x;
const guint x2 = sink->display_rect.x + sink->display_rect.width;
const guint y1 = sink->display_rect.y;
const guint rh = sink->display_rect.height / 5;
GLfloat ry = 1.0f - (GLfloat)rh / (GLfloat)sink->display_rect.height;
glBegin(GL_QUADS);
{
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y1);
glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y1);
glColor4f(1.0f, 1.0f, 1.0f, 0.0f);
glTexCoord2f(1.0f, ry); glVertex2i(x2, y1 + rh);
glTexCoord2f(0.0f, ry); glVertex2i(x1, y1 + rh);
}
glEnd();
}
static gboolean
gst_vaapisink_ensure_texture(GstVaapiSink *sink, GstVaapiSurface *surface)
{
GstVaapiDisplay * display = GST_VAAPI_PLUGIN_BASE_DISPLAY(sink);
GstVideoRectangle tex_rect, dis_rect, out_rect;
guint width, height;
if (sink->texture)
return TRUE;
gst_vaapi_surface_get_size(surface, &width, &height);
tex_rect.x = 0;
tex_rect.y = 0;
tex_rect.w = width;
tex_rect.h = height;
gst_vaapi_display_get_size(display, &width, &height);
dis_rect.x = 0;
dis_rect.y = 0;
dis_rect.w = width;
dis_rect.h = height;
gst_video_sink_center_rect(tex_rect, dis_rect, &out_rect, TRUE);
/* XXX: use surface size for now since some VA drivers have issues
with downscaling to the provided texture size. i.e. we should be
using the resulting out_rect size, which preserves the aspect
ratio of the surface */
width = tex_rect.w;
height = tex_rect.h;
GST_INFO("texture size %ux%u", width, height);
sink->texture = gst_vaapi_texture_new(display,
GL_TEXTURE_2D, GL_BGRA, width, height);
return sink->texture != NULL;
}
static gboolean
gst_vaapisink_show_frame_glx(
GstVaapiSink *sink,
GstVaapiSurface *surface,
const GstVaapiRectangle *surface_rect,
guint flags
)
{
GstVaapiWindowGLX * const window = GST_VAAPI_WINDOW_GLX(sink->window);
GLenum target;
GLuint texture;
gst_vaapi_window_glx_make_current(window);
if (!gst_vaapisink_ensure_texture(sink, surface))
goto error_create_texture;
if (!gst_vaapi_texture_put_surface(sink->texture, surface, flags))
goto error_transfer_surface;
target = gst_vaapi_texture_get_target(sink->texture);
texture = gst_vaapi_texture_get_id(sink->texture);
if (target != GL_TEXTURE_2D || !texture)
return FALSE;
if (sink->use_reflection)
render_background(sink);
glEnable(target);
glBindTexture(target, texture);
{
if (sink->use_reflection) {
glPushMatrix();
glRotatef(20.0f, 0.0f, 1.0f, 0.0f);
glTranslatef(50.0f, 0.0f, 0.0f);
}
render_frame(sink, surface, surface_rect);
if (sink->use_reflection) {
glPushMatrix();
glTranslatef(0.0, (GLfloat)sink->display_rect.height + 5.0f, 0.0f);
render_reflection(sink);
glPopMatrix();
glPopMatrix();
}
}
glBindTexture(target, 0);
glDisable(target);
gst_vaapi_window_glx_swap_buffers(window);
return TRUE;
/* ERRORS */
error_create_texture:
{
GST_DEBUG("could not create VA/GLX texture");
return FALSE;
}
error_transfer_surface:
{
GST_DEBUG("could not transfer VA surface to texture");
return FALSE;
}
}
#endif
static inline gboolean
gst_vaapisink_put_surface(
GstVaapiSink *sink,
GstVaapiSurface *surface,
const GstVaapiRectangle *surface_rect,
guint flags
)
{
if (!gst_vaapi_window_put_surface(sink->window, surface,
surface_rect, &sink->display_rect, flags)) {
GST_DEBUG("could not render VA surface");
return FALSE;
}
return TRUE;
}
static GstFlowReturn
gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *src_buffer)
{
GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
GstVaapiVideoMeta *meta;
GstVaapiSurface *surface;
GstBuffer *buffer;
guint flags;
gboolean success;
GstVaapiRectangle *surface_rect = NULL;
#if GST_CHECK_VERSION(1,0,0)
GstVaapiRectangle tmp_rect;
#endif
GstFlowReturn ret;
#if GST_CHECK_VERSION(1,0,0)
GstVideoCropMeta * const 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;
}
#endif
ret = gst_vaapi_plugin_base_get_input_buffer(GST_VAAPI_PLUGIN_BASE(sink),
src_buffer, &buffer);
if (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_SUPPORTED)
return ret;
meta = gst_buffer_get_vaapi_video_meta(buffer);
GST_VAAPI_PLUGIN_BASE_DISPLAY_REPLACE(sink,
gst_vaapi_video_meta_get_display(meta));
if (!sink->window)
goto error;
gst_vaapisink_ensure_rotation(sink, TRUE);
surface = gst_vaapi_video_meta_get_surface(meta);
if (!surface)
goto error;
GST_DEBUG("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);
if (!gst_vaapi_apply_composition(surface, src_buffer))
GST_WARNING("could not update subtitles");
switch (GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink)) {
#if USE_DRM
case GST_VAAPI_DISPLAY_TYPE_DRM:
success = TRUE;
break;
#endif
#if USE_GLX
case GST_VAAPI_DISPLAY_TYPE_GLX:
if (!sink->use_glx)
goto put_surface_x11;
success = gst_vaapisink_show_frame_glx(sink, surface, surface_rect,
flags);
break;
#endif
#if USE_X11
case GST_VAAPI_DISPLAY_TYPE_X11:
put_surface_x11:
success = gst_vaapisink_put_surface(sink, surface, surface_rect, flags);
break;
#endif
#if USE_WAYLAND
case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
success = gst_vaapisink_put_surface(sink, surface, surface_rect, flags);
break;
#endif
default:
GST_ERROR("unsupported display type %d",
GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink));
success = FALSE;
break;
}
if (!success)
goto error;
/* Retain VA surface until the next one is displayed */
if (sink->use_overlay)
gst_buffer_replace(&sink->video_buffer, buffer);
gst_buffer_unref(buffer);
return GST_FLOW_OK;
error:
gst_buffer_unref(buffer);
return GST_FLOW_EOS;
}
#if GST_CHECK_VERSION(1,0,0)
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;
}
#else
static GstFlowReturn
gst_vaapisink_buffer_alloc(GstBaseSink *base_sink, guint64 offset, guint size,
GstCaps *caps, GstBuffer **outbuf_ptr)
{
return gst_vaapi_plugin_base_allocate_input_buffer(
GST_VAAPI_PLUGIN_BASE(base_sink), caps, outbuf_ptr);
}
#endif
static gboolean
gst_vaapisink_query(GstBaseSink *base_sink, GstQuery *query)
{
GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
GST_INFO_OBJECT(sink, "query type %s", GST_QUERY_TYPE_NAME(query));
if (gst_vaapi_reply_to_query(query, GST_VAAPI_PLUGIN_BASE_DISPLAY(sink))) {
GST_DEBUG("sharing display %p", GST_VAAPI_PLUGIN_BASE_DISPLAY(sink));
return TRUE;
}
return GST_BASE_SINK_CLASS(gst_vaapisink_parent_class)->query(base_sink,
query);
}
static void
gst_vaapisink_finalize(GObject *object)
{
gst_vaapisink_destroy(GST_VAAPISINK(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(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_FULLSCREEN:
sink->fullscreen = g_value_get_boolean(value);
break;
case PROP_SYNCHRONOUS:
sink->synchronous = g_value_get_boolean(value);
break;
case PROP_USE_GLX:
sink->use_glx = g_value_get_boolean(value);
break;
case PROP_USE_REFLECTION:
sink->use_reflection = g_value_get_boolean(value);
break;
case PROP_ROTATION:
sink->rotation_req = g_value_get_enum(value);
break;
case PROP_FORCE_ASPECT_RATIO:
sink->keep_aspect = g_value_get_boolean(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(object);
switch (prop_id) {
case PROP_DISPLAY_TYPE:
g_value_set_enum(value, GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink));
break;
case PROP_FULLSCREEN:
g_value_set_boolean(value, sink->fullscreen);
break;
case PROP_SYNCHRONOUS:
g_value_set_boolean(value, sink->synchronous);
break;
case PROP_USE_GLX:
g_value_set_boolean(value, sink->use_glx);
break;
case PROP_USE_REFLECTION:
g_value_set_boolean(value, sink->use_reflection);
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;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
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);
GstVaapiPluginBaseClass * const base_plugin_class =
GST_VAAPI_PLUGIN_BASE_CLASS(klass);
GstPadTemplate *pad_template;
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->preroll = gst_vaapisink_show_frame;
basesink_class->render = gst_vaapisink_show_frame;
basesink_class->query = gst_vaapisink_query;
#if GST_CHECK_VERSION(1,0,0)
basesink_class->propose_allocation = gst_vaapisink_propose_allocation;
#else
basesink_class->buffer_alloc = gst_vaapisink_buffer_alloc;
#endif
gst_element_class_set_static_metadata(element_class,
"VA-API sink",
"Sink/Video",
GST_PLUGIN_DESC,
"Gwenole Beauchesne <gwenole.beauchesne@intel.com>");
pad_template = gst_static_pad_template_get(&gst_vaapisink_sink_factory);
gst_element_class_add_pad_template(element_class, pad_template);
g_object_class_install_property
(object_class,
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));
#if USE_GLX
g_object_class_install_property
(object_class,
PROP_USE_GLX,
g_param_spec_boolean("use-glx",
"OpenGL rendering",
"Enables OpenGL rendering",
FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property
(object_class,
PROP_USE_REFLECTION,
g_param_spec_boolean("use-reflection",
"Reflection effect",
"Enables OpenGL reflection effect",
FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
#endif
g_object_class_install_property
(object_class,
PROP_FULLSCREEN,
g_param_spec_boolean("fullscreen",
"Fullscreen",
"Requests window in fullscreen state",
FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiSink:synchronous:
*
* When enabled, runs the X display in synchronous mode. Note that
* this is used only for debugging.
*/
g_object_class_install_property
(object_class,
PROP_SYNCHRONOUS,
g_param_spec_boolean("synchronous",
"Synchronous mode",
"Toggles X display synchronous mode",
FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiSink:rotation:
*
* The VA display rotation mode, expressed as a #GstVaapiRotation.
*/
g_object_class_install_property
(object_class,
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_object_class_install_property
(object_class,
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));
}
static void
gst_vaapisink_init(GstVaapiSink *sink)
{
GstVaapiPluginBase * const plugin = GST_VAAPI_PLUGIN_BASE(sink);
gst_vaapi_plugin_base_init(plugin, GST_CAT_DEFAULT);
gst_vaapi_plugin_base_set_display_type(plugin, DEFAULT_DISPLAY_TYPE);
sink->caps = NULL;
sink->window = NULL;
sink->window_width = 0;
sink->window_height = 0;
sink->texture = NULL;
sink->video_buffer = NULL;
sink->video_width = 0;
sink->video_height = 0;
sink->video_par_n = 1;
sink->video_par_d = 1;
sink->foreign_window = FALSE;
sink->fullscreen = FALSE;
sink->synchronous = FALSE;
sink->rotation = DEFAULT_ROTATION;
sink->rotation_req = DEFAULT_ROTATION;
sink->use_reflection = FALSE;
sink->use_overlay = FALSE;
sink->use_rotation = FALSE;
sink->keep_aspect = TRUE;
gst_video_info_init(&sink->video_info);
}
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