gst/vaapi/gstvaapisink.c

   1 /*
   2  *  gstvaapisink.c - VA-API video sink
   3  *
   4  *  Copyright (C) 2010-2011 Splitted-Desktop Systems
   5  *  Copyright (C) 2011-2013 Intel Corporation
   6  *
   7  *  This library is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU Lesser General Public License
   9  *  as published by the Free Software Foundation; either version 2.1
  10  *  of the License, or (at your option) any later version.
  11  *
  12  *  This library is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  Lesser General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Lesser General Public
  18  *  License along with this library; if not, write to the Free
  19  *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20  *  Boston, MA 02110-1301 USA
  21  */
  22
  23 /**
  24  * SECTION:gstvaapisink
  25  * @short_description: A VA-API based videosink
  26  *
  27  * vaapisink renders video frames to a drawable (X #Window) on a local
  28  * display using the Video Acceleration (VA) API. The element will
  29  * create its own internal window and render into it.
  30  */
  31
  32 #include "gst/vaapi/sysdeps.h"
  33 #include <gst/gst.h>
  34 #include <gst/video/video.h>
  35 #include <gst/video/videocontext.h>
  36 #include <gst/vaapi/gstvaapivalue.h>
  37 #if USE_DRM
  38 # include <gst/vaapi/gstvaapidisplay_drm.h>
  39 #endif
  40 #if USE_X11
  41 # include <gst/vaapi/gstvaapidisplay_x11.h>
  42 # include <gst/vaapi/gstvaapiwindow_x11.h>
  43 #endif
  44 #if USE_GLX
  45 # include <gst/vaapi/gstvaapidisplay_glx.h>
  46 # include <gst/vaapi/gstvaapiwindow_glx.h>
  47 #endif
  48 #if USE_WAYLAND
  49 # include <gst/vaapi/gstvaapidisplay_wayland.h>
  50 # include <gst/vaapi/gstvaapiwindow_wayland.h>
  51 #endif
  52
  53 /* Supported interfaces */
  54 #if GST_CHECK_VERSION(1,0,0)
  55 # include <gst/video/videooverlay.h>
  56 #else
  57 # include <gst/interfaces/xoverlay.h>
  58
  59 # define GST_TYPE_VIDEO_OVERLAY         GST_TYPE_X_OVERLAY
  60 # define GST_VIDEO_OVERLAY              GST_X_OVERLAY
  61 # define GstVideoOverlay                GstXOverlay
  62 # define GstVideoOverlayInterface       GstXOverlayClass
  63
  64 # define gst_video_overlay_prepare_window_handle(sink) \
  65     gst_x_overlay_prepare_xwindow_id(sink)
  66 # define gst_video_overlay_got_window_handle(sink, window_handle) \
  67     gst_x_overlay_got_window_handle(sink, window_handle)
  68 #endif
  69
  70 #include "gstvaapisink.h"
  71 #include "gstvaapipluginutil.h"
  72 #include "gstvaapivideometa.h"
  73 #if GST_CHECK_VERSION(1,0,0)
  74 #include "gstvaapivideobufferpool.h"
  75 #include "gstvaapivideomemory.h"
  76 #endif
  77
  78 #define GST_PLUGIN_NAME "vaapisink"
  79 #define GST_PLUGIN_DESC "A VA-API based videosink"
  80
  81 GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapisink);
  82 #define GST_CAT_DEFAULT gst_debug_vaapisink
  83
  84 /* Default template */
  85 static const char gst_vaapisink_sink_caps_str[] =
  86 #if !GST_CHECK_VERSION(1,0,0)
  87     "video/x-raw-yuv, "
  88     "width  = (int) [ 1, MAX ], "
  89     "height = (int) [ 1, MAX ]; "
  90 #endif
  91     GST_VAAPI_SURFACE_CAPS;
  92
  93 static GstStaticPadTemplate gst_vaapisink_sink_factory =
  94     GST_STATIC_PAD_TEMPLATE(
  95         "sink",
  96         GST_PAD_SINK,
  97         GST_PAD_ALWAYS,
  98         GST_STATIC_CAPS(gst_vaapisink_sink_caps_str));
  99
 100 /* GstImplementsInterface interface */
 101 #if !GST_CHECK_VERSION(1,0,0)
 102 static gboolean
 103 gst_vaapisink_implements_interface_supported(
 104     GstImplementsInterface *iface,
 105     GType                   type
 106 )
 107 {
 108     return (type == GST_TYPE_VIDEO_CONTEXT ||
 109             type == GST_TYPE_VIDEO_OVERLAY);
 110 }
 111
 112 static void
 113 gst_vaapisink_implements_iface_init(GstImplementsInterfaceClass *iface)
 114 {
 115     iface->supported = gst_vaapisink_implements_interface_supported;
 116 }
 117 #endif
 118
 119 /* GstVideoContext interface */
 120 static void
 121 gst_vaapisink_set_video_context(GstVideoContext *context, const gchar *type,
 122     const GValue *value)
 123 {
 124   GstVaapiSink *sink = GST_VAAPISINK (context);
 125   gst_vaapi_set_display (type, value, &sink->display);
 126 }
 127
 128 static void
 129 gst_vaapisink_video_context_iface_init(GstVideoContextInterface *iface)
 130 {
 131     iface->set_context = gst_vaapisink_set_video_context;
 132 }
 133
 134 static void
 135 gst_vaapisink_video_overlay_iface_init(GstVideoOverlayInterface *iface);
 136
 137 G_DEFINE_TYPE_WITH_CODE(
 138     GstVaapiSink,
 139     gst_vaapisink,
 140     GST_TYPE_VIDEO_SINK,
 141 #if !GST_CHECK_VERSION(1,0,0)
 142     G_IMPLEMENT_INTERFACE(GST_TYPE_IMPLEMENTS_INTERFACE,
 143                           gst_vaapisink_implements_iface_init);
 144 #endif
 145     G_IMPLEMENT_INTERFACE(GST_TYPE_VIDEO_CONTEXT,
 146                           gst_vaapisink_video_context_iface_init);
 147     G_IMPLEMENT_INTERFACE(GST_TYPE_VIDEO_OVERLAY,
 148                           gst_vaapisink_video_overlay_iface_init))
 149
 150 enum {
 151     PROP_0,
 152
 153     PROP_DISPLAY_TYPE,
 154     PROP_FULLSCREEN,
 155     PROP_SYNCHRONOUS,
 156     PROP_USE_REFLECTION,
 157     PROP_ROTATION,
 158 };
 159
 160 #define DEFAULT_DISPLAY_TYPE            GST_VAAPI_DISPLAY_TYPE_ANY
 161 #define DEFAULT_ROTATION                GST_VAAPI_ROTATION_0
 162
 163 /* GstVideoOverlay interface */
 164
 165 #if USE_X11
 166 static gboolean
 167 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id);
 168 #endif
 169
 170 static GstFlowReturn
 171 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer);
 172
 173 static void
 174 gst_vaapisink_video_overlay_set_window_handle(GstVideoOverlay *overlay, guintptr window)
 175 {
 176     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 177
 178     /* Disable GLX rendering when vaapisink is using a foreign X
 179        window. It's pretty much useless */
 180     if (sink->display_type == GST_VAAPI_DISPLAY_TYPE_GLX)
 181         sink->display_type = GST_VAAPI_DISPLAY_TYPE_X11;
 182
 183     sink->foreign_window = TRUE;
 184
 185     switch (sink->display_type) {
 186 #if USE_X11
 187     case GST_VAAPI_DISPLAY_TYPE_X11:
 188         gst_vaapisink_ensure_window_xid(sink, window);
 189         break;
 190 #endif
 191     default:
 192         break;
 193     }
 194 }
 195
 196 static void
 197 gst_vaapisink_video_overlay_set_render_rectangle(
 198     GstVideoOverlay *overlay,
 199     gint         x,
 200     gint         y,
 201     gint         width,
 202     gint         height
 203 )
 204 {
 205     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 206     GstVaapiRectangle * const display_rect = &sink->display_rect;
 207
 208     display_rect->x      = x;
 209     display_rect->y      = y;
 210     display_rect->width  = width;
 211     display_rect->height = height;
 212
 213     GST_DEBUG("render rect (%d,%d):%ux%u",
 214               display_rect->x, display_rect->y,
 215               display_rect->width, display_rect->height);
 216 }
 217
 218 static void
 219 gst_vaapisink_video_overlay_expose(GstVideoOverlay *overlay)
 220 {
 221     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 222     GstBaseSink * const base_sink = GST_BASE_SINK(overlay);
 223     GstBuffer *buffer;
 224
 225     if (sink->use_overlay)
 226         buffer = sink->video_buffer ? gst_buffer_ref(sink->video_buffer) : NULL;
 227     else {
 228 #if GST_CHECK_VERSION(1,0,0)
 229         GstSample * const sample = gst_base_sink_get_last_sample(base_sink);
 230         if (!sample)
 231             return;
 232         buffer = gst_buffer_ref(gst_sample_get_buffer(sample));
 233         gst_sample_unref(sample);
 234 #else
 235         buffer = gst_base_sink_get_last_buffer(base_sink);
 236 #endif
 237     }
 238     if (buffer) {
 239         gst_vaapisink_show_frame(base_sink, buffer);
 240         gst_buffer_unref(buffer);
 241     }
 242 }
 243
 244 static void
 245 gst_vaapisink_video_overlay_iface_init(GstVideoOverlayInterface *iface)
 246 {
 247     iface->set_window_handle    = gst_vaapisink_video_overlay_set_window_handle;
 248     iface->set_render_rectangle = gst_vaapisink_video_overlay_set_render_rectangle;
 249     iface->expose               = gst_vaapisink_video_overlay_expose;
 250 }
 251
 252 static void
 253 gst_vaapisink_destroy(GstVaapiSink *sink)
 254 {
 255     gst_buffer_replace(&sink->video_buffer, NULL);
 256     gst_vaapi_texture_replace(&sink->texture, NULL);
 257     gst_vaapi_display_replace(&sink->display, NULL);
 258     g_clear_object(&sink->uploader);
 259
 260     gst_caps_replace(&sink->caps, NULL);
 261 }
 262
 263 #if USE_X11
 264 /* Checks whether a ConfigureNotify event is in the queue */
 265 typedef struct _ConfigureNotifyEventPendingArgs ConfigureNotifyEventPendingArgs;
 266 struct _ConfigureNotifyEventPendingArgs {
 267     Window      window;
 268     guint       width;
 269     guint       height;
 270     gboolean    match;
 271 };
 272
 273 static Bool
 274 configure_notify_event_pending_cb(Display *dpy, XEvent *xev, XPointer arg)
 275 {
 276     ConfigureNotifyEventPendingArgs * const args =
 277         (ConfigureNotifyEventPendingArgs *)arg;
 278
 279     if (xev->type == ConfigureNotify &&
 280         xev->xconfigure.window == args->window &&
 281         xev->xconfigure.width  == args->width  &&
 282         xev->xconfigure.height == args->height)
 283         args->match = TRUE;
 284
 285     /* XXX: this is a hack to traverse the whole queue because we
 286        can't use XPeekIfEvent() since it could block */
 287     return False;
 288 }
 289
 290 static gboolean
 291 configure_notify_event_pending(
 292     GstVaapiSink *sink,
 293     Window        window,
 294     guint         width,
 295     guint         height
 296 )
 297 {
 298     ConfigureNotifyEventPendingArgs args;
 299     XEvent xev;
 300
 301     args.window = window;
 302     args.width  = width;
 303     args.height = height;
 304     args.match  = FALSE;
 305
 306     /* XXX: don't use XPeekIfEvent() because it might block */
 307     XCheckIfEvent(
 308         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 309         &xev,
 310         configure_notify_event_pending_cb, (XPointer)&args
 311     );
 312     return args.match;
 313 }
 314 #endif
 315
 316 static const gchar *
 317 get_display_type_name(GstVaapiDisplayType display_type)
 318 {
 319     gpointer const klass = g_type_class_peek(GST_VAAPI_TYPE_DISPLAY_TYPE);
 320     GEnumValue * const e = g_enum_get_value(klass, display_type);
 321
 322     if (e)
 323         return e->value_name;
 324     return "<unknown-type>";
 325 }
 326
 327 static inline gboolean
 328 gst_vaapisink_ensure_display(GstVaapiSink *sink)
 329 {
 330     GstVaapiDisplayType display_type;
 331     GstVaapiRenderMode render_mode;
 332     const gboolean had_display = sink->display != NULL;
 333
 334     if (!gst_vaapi_ensure_display(sink, sink->display_type, &sink->display))
 335         return FALSE;
 336
 337     display_type = gst_vaapi_display_get_display_type(sink->display);
 338     if (display_type != sink->display_type || (!had_display && sink->display)) {
 339         GST_INFO("created %s %p", get_display_type_name(display_type),
 340             sink->display);
 341         sink->display_type = display_type;
 342
 343         sink->use_overlay =
 344             gst_vaapi_display_get_render_mode(sink->display, &render_mode) &&
 345             render_mode == GST_VAAPI_RENDER_MODE_OVERLAY;
 346         GST_DEBUG("use %s rendering mode", sink->use_overlay ? "overlay" : "texture");
 347
 348         sink->use_rotation = gst_vaapi_display_has_property(
 349             sink->display, GST_VAAPI_DISPLAY_PROP_ROTATION);
 350     }
 351     return TRUE;
 352 }
 353
 354 static gboolean
 355 gst_vaapisink_ensure_uploader(GstVaapiSink *sink)
 356 {
 357     if (!gst_vaapisink_ensure_display(sink))
 358         return FALSE;
 359
 360     if (!sink->uploader) {
 361         sink->uploader = gst_vaapi_uploader_new(sink->display);
 362         if (!sink->uploader)
 363             return FALSE;
 364     }
 365     return TRUE;
 366 }
 367
 368 static gboolean
 369 gst_vaapisink_ensure_render_rect(GstVaapiSink *sink, guint width, guint height)
 370 {
 371     GstVaapiRectangle * const display_rect = &sink->display_rect;
 372     guint num, den, display_par_n, display_par_d;
 373     gboolean success;
 374
 375     /* Return success if caps are not set yet */
 376     if (!sink->caps)
 377         return TRUE;
 378
 379     GST_DEBUG("ensure render rect within %ux%u bounds", width, height);
 380
 381     gst_vaapi_display_get_pixel_aspect_ratio(
 382         sink->display,
 383         &display_par_n, &display_par_d
 384     );
 385     GST_DEBUG("display pixel-aspect-ratio %d/%d",
 386               display_par_n, display_par_d);
 387
 388     success = gst_video_calculate_display_ratio(
 389         &num, &den,
 390         sink->video_width, sink->video_height,
 391         sink->video_par_n, sink->video_par_d,
 392         display_par_n, display_par_d
 393     );
 394     if (!success)
 395         return FALSE;
 396     GST_DEBUG("video size %dx%d, calculated ratio %d/%d",
 397               sink->video_width, sink->video_height, num, den);
 398
 399     display_rect->width = gst_util_uint64_scale_int(height, num, den);
 400     if (display_rect->width <= width) {
 401         GST_DEBUG("keeping window height");
 402         display_rect->height = height;
 403     }
 404     else {
 405         GST_DEBUG("keeping window width");
 406         display_rect->width  = width;
 407         display_rect->height =
 408             gst_util_uint64_scale_int(width, den, num);
 409     }
 410     GST_DEBUG("scaling video to %ux%u", display_rect->width, display_rect->height);
 411
 412     g_assert(display_rect->width  <= width);
 413     g_assert(display_rect->height <= height);
 414
 415     display_rect->x = (width  - display_rect->width)  / 2;
 416     display_rect->y = (height - display_rect->height) / 2;
 417
 418     GST_DEBUG("render rect (%d,%d):%ux%u",
 419               display_rect->x, display_rect->y,
 420               display_rect->width, display_rect->height);
 421     return TRUE;
 422 }
 423
 424 static void
 425 gst_vaapisink_ensure_window_size(GstVaapiSink *sink, guint *pwidth, guint *pheight)
 426 {
 427     GstVideoRectangle src_rect, dst_rect, out_rect;
 428     guint num, den, display_width, display_height, display_par_n, display_par_d;
 429     gboolean success, scale;
 430
 431     if (sink->foreign_window) {
 432         *pwidth  = sink->window_width;
 433         *pheight = sink->window_height;
 434         return;
 435     }
 436
 437     gst_vaapi_display_get_size(sink->display, &display_width, &display_height);
 438     if (sink->fullscreen) {
 439         *pwidth  = display_width;
 440         *pheight = display_height;
 441         return;
 442     }
 443
 444     gst_vaapi_display_get_pixel_aspect_ratio(
 445         sink->display,
 446         &display_par_n, &display_par_d
 447     );
 448
 449     success = gst_video_calculate_display_ratio(
 450         &num, &den,
 451         sink->video_width, sink->video_height,
 452         sink->video_par_n, sink->video_par_d,
 453         display_par_n, display_par_d
 454     );
 455     if (!success) {
 456         num = sink->video_par_n;
 457         den = sink->video_par_d;
 458     }
 459
 460     src_rect.x = 0;
 461     src_rect.y = 0;
 462     src_rect.w = gst_util_uint64_scale_int(sink->video_height, num, den);
 463     src_rect.h = sink->video_height;
 464     dst_rect.x = 0;
 465     dst_rect.y = 0;
 466     dst_rect.w = display_width;
 467     dst_rect.h = display_height;
 468     scale      = (src_rect.w > dst_rect.w || src_rect.h > dst_rect.h);
 469     gst_video_sink_center_rect(src_rect, dst_rect, &out_rect, scale);
 470     *pwidth    = out_rect.w;
 471     *pheight   = out_rect.h;
 472 }
 473
 474 static inline gboolean
 475 gst_vaapisink_ensure_window(GstVaapiSink *sink, guint width, guint height)
 476 {
 477     GstVaapiDisplay * const display = sink->display;
 478
 479     if (!sink->window) {
 480         switch (sink->display_type) {
 481 #if USE_GLX
 482         case GST_VAAPI_DISPLAY_TYPE_GLX:
 483             sink->window = gst_vaapi_window_glx_new(display, width, height);
 484             goto notify_video_overlay_interface;
 485 #endif
 486 #if USE_X11
 487         case GST_VAAPI_DISPLAY_TYPE_X11:
 488             sink->window = gst_vaapi_window_x11_new(display, width, height);
 489         notify_video_overlay_interface:
 490             if (!sink->window)
 491                 break;
 492             gst_video_overlay_got_window_handle(
 493                 GST_VIDEO_OVERLAY(sink),
 494                 gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window))
 495             );
 496             break;
 497 #endif
 498 #if USE_WAYLAND
 499         case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
 500             sink->window = gst_vaapi_window_wayland_new(display, width, height);
 501             break;
 502 #endif
 503         default:
 504             GST_ERROR("unsupported display type %d", sink->display_type);
 505             return FALSE;
 506         }
 507     }
 508     return sink->window != NULL;
 509 }
 510
 511 #if USE_X11
 512 static gboolean
 513 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id)
 514 {
 515     Window rootwin;
 516     unsigned int width, height, border_width, depth;
 517     int x, y;
 518     XID xid = window_id;
 519
 520     if (!gst_vaapisink_ensure_display(sink))
 521         return FALSE;
 522
 523     gst_vaapi_display_lock(sink->display);
 524     XGetGeometry(
 525         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 526         xid,
 527         &rootwin,
 528         &x, &y, &width, &height, &border_width, &depth
 529     );
 530     gst_vaapi_display_unlock(sink->display);
 531
 532     if ((width != sink->window_width || height != sink->window_height) &&
 533         !configure_notify_event_pending(sink, xid, width, height)) {
 534         if (!gst_vaapisink_ensure_render_rect(sink, width, height))
 535             return FALSE;
 536         sink->window_width  = width;
 537         sink->window_height = height;
 538     }
 539
 540     if (sink->window &&
 541         gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window)) == xid)
 542         return TRUE;
 543
 544     gst_vaapi_window_replace(&sink->window, NULL);
 545
 546     switch (sink->display_type) {
 547 #if USE_GLX
 548     case GST_VAAPI_DISPLAY_TYPE_GLX:
 549         sink->window = gst_vaapi_window_glx_new_with_xid(sink->display, xid);
 550         break;
 551 #endif
 552     case GST_VAAPI_DISPLAY_TYPE_X11:
 553         sink->window = gst_vaapi_window_x11_new_with_xid(sink->display, xid);
 554         break;
 555     default:
 556         GST_ERROR("unsupported display type %d", sink->display_type);
 557         return FALSE;
 558     }
 559     return sink->window != NULL;
 560 }
 561 #endif
 562
 563 static gboolean
 564 gst_vaapisink_ensure_rotation(GstVaapiSink *sink, gboolean recalc_display_rect)
 565 {
 566     gboolean success = FALSE;
 567
 568     g_return_val_if_fail(sink->display, FALSE);
 569
 570     if (sink->rotation == sink->rotation_req)
 571         return TRUE;
 572
 573     if (!sink->use_rotation) {
 574         GST_WARNING("VA display does not support rotation");
 575         goto end;
 576     }
 577
 578     gst_vaapi_display_lock(sink->display);
 579     success = gst_vaapi_display_set_rotation(sink->display, sink->rotation_req);
 580     gst_vaapi_display_unlock(sink->display);
 581     if (!success) {
 582         GST_ERROR("failed to change VA display rotation mode");
 583         goto end;
 584     }
 585
 586     if (((sink->rotation + sink->rotation_req) % 180) == 90) {
 587         /* Orientation changed */
 588         G_PRIMITIVE_SWAP(guint, sink->video_width, sink->video_height);
 589         G_PRIMITIVE_SWAP(gint, sink->video_par_n, sink->video_par_d);
 590     }
 591
 592     if (recalc_display_rect && !sink->foreign_window)
 593         gst_vaapisink_ensure_render_rect(sink, sink->window_width,
 594             sink->window_height);
 595     success = TRUE;
 596
 597 end:
 598     sink->rotation = sink->rotation_req;
 599     return success;
 600 }
 601
 602 static gboolean
 603 gst_vaapisink_ensure_video_buffer_pool(GstVaapiSink *sink, GstCaps *caps)
 604 {
 605 #if GST_CHECK_VERSION(1,0,0)
 606     GstBufferPool *pool;
 607     GstCaps *pool_caps;
 608     GstStructure *config;
 609     GstVideoInfo vi;
 610     gboolean need_pool;
 611
 612     if (!gst_vaapisink_ensure_display(sink))
 613         return FALSE;
 614
 615     if (sink->video_buffer_pool) {
 616         config = gst_buffer_pool_get_config(sink->video_buffer_pool);
 617         gst_buffer_pool_config_get_params(config, &pool_caps, NULL, NULL, NULL);
 618         need_pool = !gst_caps_is_equal(caps, pool_caps);
 619         gst_structure_free(config);
 620         if (!need_pool)
 621             return TRUE;
 622         g_clear_object(&sink->video_buffer_pool);
 623         sink->video_buffer_size = 0;
 624     }
 625
 626     pool = gst_vaapi_video_buffer_pool_new(sink->display);
 627     if (!pool)
 628         goto error_create_pool;
 629
 630     gst_video_info_init(&vi);
 631     gst_video_info_from_caps(&vi, caps);
 632     if (GST_VIDEO_INFO_FORMAT(&vi) == GST_VIDEO_FORMAT_ENCODED) {
 633         GST_DEBUG("assume video buffer pool format is NV12");
 634         gst_video_info_set_format(&vi, GST_VIDEO_FORMAT_NV12,
 635             GST_VIDEO_INFO_WIDTH(&vi), GST_VIDEO_INFO_HEIGHT(&vi));
 636     }
 637     sink->video_buffer_size = vi.size;
 638
 639     config = gst_buffer_pool_get_config(pool);
 640     gst_buffer_pool_config_set_params(config, caps, sink->video_buffer_size,
 641         0, 0);
 642     gst_buffer_pool_config_add_option(config,
 643         GST_BUFFER_POOL_OPTION_VAAPI_VIDEO_META);
 644     if (!gst_buffer_pool_set_config(pool, config))
 645         goto error_pool_config;
 646     sink->video_buffer_pool = pool;
 647     return TRUE;
 648
 649     /* ERRORS */
 650 error_create_pool:
 651     {
 652         GST_ERROR("failed to create buffer pool");
 653         return FALSE;
 654     }
 655 error_pool_config:
 656     {
 657         GST_ERROR("failed to reset buffer pool config");
 658         gst_object_unref(pool);
 659         return FALSE;
 660     }
 661 #else
 662     return TRUE;
 663 #endif
 664 }
 665
 666 static gboolean
 667 gst_vaapisink_start(GstBaseSink *base_sink)
 668 {
 669     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 670
 671     if (!gst_vaapisink_ensure_display(sink))
 672         return FALSE;
 673
 674     sink->uploader = gst_vaapi_uploader_new(sink->display);
 675     if (!sink->uploader)
 676         return FALSE;
 677     return TRUE;
 678 }
 679
 680 static gboolean
 681 gst_vaapisink_stop(GstBaseSink *base_sink)
 682 {
 683     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 684
 685     gst_buffer_replace(&sink->video_buffer, NULL);
 686 #if GST_CHECK_VERSION(1,0,0)
 687     g_clear_object(&sink->video_buffer_pool);
 688 #endif
 689     gst_vaapi_window_replace(&sink->window, NULL);
 690     gst_vaapi_display_replace(&sink->display, NULL);
 691     g_clear_object(&sink->uploader);
 692
 693     return TRUE;
 694 }
 695
 696 static GstCaps *
 697 gst_vaapisink_get_caps_impl(GstBaseSink *base_sink)
 698 {
 699     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 700     GstCaps *out_caps, *yuv_caps;
 701
 702     out_caps = gst_caps_from_string(GST_VAAPI_SURFACE_CAPS);
 703     if (!out_caps)
 704         return NULL;
 705
 706     if (gst_vaapisink_ensure_uploader(sink)) {
 707         yuv_caps = gst_vaapi_uploader_get_caps(sink->uploader);
 708         if (yuv_caps)
 709             gst_caps_append(out_caps, gst_caps_copy(yuv_caps));
 710     }
 711     return out_caps;
 712 }
 713
 714 #if GST_CHECK_VERSION(1,0,0)
 715 static inline GstCaps *
 716 gst_vaapisink_get_caps(GstBaseSink *base_sink, GstCaps *filter)
 717 {
 718     return gst_vaapisink_get_caps_impl(base_sink);
 719 }
 720 #else
 721 #define gst_vaapisink_get_caps gst_vaapisink_get_caps_impl
 722 #endif
 723
 724 static gboolean
 725 gst_vaapisink_set_caps(GstBaseSink *base_sink, GstCaps *caps)
 726 {
 727     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 728     GstVideoInfo vi;
 729     guint win_width, win_height;
 730
 731 #if USE_DRM
 732     if (sink->display_type == GST_VAAPI_DISPLAY_TYPE_DRM)
 733         return TRUE;
 734 #endif
 735
 736     if (!gst_vaapisink_ensure_video_buffer_pool(sink, caps))
 737         return FALSE;
 738
 739     if (!gst_video_info_from_caps(&vi, caps))
 740         return FALSE;
 741     sink->use_video_raw = GST_VIDEO_INFO_IS_YUV(&vi);
 742     sink->video_width   = GST_VIDEO_INFO_WIDTH(&vi);
 743     sink->video_height  = GST_VIDEO_INFO_HEIGHT(&vi);
 744     sink->video_par_n   = GST_VIDEO_INFO_PAR_N(&vi);
 745     sink->video_par_d   = GST_VIDEO_INFO_PAR_D(&vi);
 746     GST_DEBUG("video pixel-aspect-ratio %d/%d",
 747               sink->video_par_n, sink->video_par_d);
 748
 749     gst_caps_replace(&sink->caps, caps);
 750
 751     if (!gst_vaapisink_ensure_display(sink))
 752         return FALSE;
 753
 754     gst_vaapisink_ensure_rotation(sink, FALSE);
 755
 756     gst_vaapisink_ensure_window_size(sink, &win_width, &win_height);
 757     if (sink->window) {
 758         if (!sink->foreign_window || sink->fullscreen)
 759             gst_vaapi_window_set_size(sink->window, win_width, win_height);
 760     }
 761     else {
 762         gst_vaapi_display_lock(sink->display);
 763         gst_video_overlay_prepare_window_handle(GST_VIDEO_OVERLAY(sink));
 764         gst_vaapi_display_unlock(sink->display);
 765         if (sink->window)
 766             return TRUE;
 767         if (!gst_vaapisink_ensure_window(sink, win_width, win_height))
 768             return FALSE;
 769         gst_vaapi_window_set_fullscreen(sink->window, sink->fullscreen);
 770         gst_vaapi_window_show(sink->window);
 771         gst_vaapi_window_get_size(sink->window, &win_width, &win_height);
 772     }
 773     sink->window_width  = win_width;
 774     sink->window_height = win_height;
 775     GST_DEBUG("window size %ux%u", win_width, win_height);
 776
 777     return gst_vaapisink_ensure_render_rect(sink, win_width, win_height);
 778 }
 779
 780 #if USE_GLX
 781 static void
 782 render_background(GstVaapiSink *sink)
 783 {
 784     /* Original code from Mirco Muller (MacSlow):
 785        <http://cgit.freedesktop.org/~macslow/gl-gst-player/> */
 786     GLfloat fStartX = 0.0f;
 787     GLfloat fStartY = 0.0f;
 788     GLfloat fWidth  = (GLfloat)sink->window_width;
 789     GLfloat fHeight = (GLfloat)sink->window_height;
 790
 791     glClear(GL_COLOR_BUFFER_BIT);
 792     glBegin(GL_QUADS);
 793     {
 794         /* top third, darker grey to white */
 795         glColor3f(0.85f, 0.85f, 0.85f);
 796         glVertex3f(fStartX, fStartY, 0.0f);
 797         glColor3f(0.85f, 0.85f, 0.85f);
 798         glVertex3f(fStartX + fWidth, fStartY, 0.0f);
 799         glColor3f(1.0f, 1.0f, 1.0f);
 800         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 801         glColor3f(1.0f, 1.0f, 1.0f);
 802         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 803
 804         /* middle third, just plain white */
 805         glColor3f(1.0f, 1.0f, 1.0f);
 806         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 807         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 808         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 809         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 810
 811         /* bottom third, white to lighter grey */
 812         glColor3f(1.0f, 1.0f, 1.0f);
 813         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 814         glColor3f(1.0f, 1.0f, 1.0f);
 815         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 816         glColor3f(0.62f, 0.66f, 0.69f);
 817         glVertex3f(fStartX + fWidth, fStartY + fHeight, 0.0f);
 818         glColor3f(0.62f, 0.66f, 0.69f);
 819         glVertex3f(fStartX, fStartY + fHeight, 0.0f);
 820     }
 821     glEnd();
 822 }
 823
 824 static void
 825 render_frame(GstVaapiSink *sink)
 826 {
 827     const guint x1 = sink->display_rect.x;
 828     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 829     const guint y1 = sink->display_rect.y;
 830     const guint y2 = sink->display_rect.y + sink->display_rect.height;
 831
 832     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 833     glBegin(GL_QUADS);
 834     {
 835         glTexCoord2f(0.0f, 0.0f); glVertex2i(x1, y1);
 836         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y2);
 837         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y2);
 838         glTexCoord2f(1.0f, 0.0f); glVertex2i(x2, y1);
 839     }
 840     glEnd();
 841 }
 842
 843 static void
 844 render_reflection(GstVaapiSink *sink)
 845 {
 846     const guint x1 = sink->display_rect.x;
 847     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 848     const guint y1 = sink->display_rect.y;
 849     const guint rh = sink->display_rect.height / 5;
 850     GLfloat     ry = 1.0f - (GLfloat)rh / (GLfloat)sink->display_rect.height;
 851
 852     glBegin(GL_QUADS);
 853     {
 854         glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 855         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y1);
 856         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y1);
 857
 858         glColor4f(1.0f, 1.0f, 1.0f, 0.0f);
 859         glTexCoord2f(1.0f, ry); glVertex2i(x2, y1 + rh);
 860         glTexCoord2f(0.0f, ry); glVertex2i(x1, y1 + rh);
 861     }
 862     glEnd();
 863 }
 864
 865 static gboolean
 866 gst_vaapisink_show_frame_glx(
 867     GstVaapiSink    *sink,
 868     GstVaapiSurface *surface,
 869     guint            flags
 870 )
 871 {
 872     GstVaapiWindowGLX * const window = GST_VAAPI_WINDOW_GLX(sink->window);
 873     GLenum target;
 874     GLuint texture;
 875
 876     gst_vaapi_window_glx_make_current(window);
 877     if (!sink->texture) {
 878         sink->texture = gst_vaapi_texture_new(
 879             sink->display,
 880             GL_TEXTURE_2D,
 881             GL_BGRA,
 882             sink->video_width,
 883             sink->video_height
 884         );
 885         if (!sink->texture)
 886             goto error_create_texture;
 887     }
 888     if (!gst_vaapi_texture_put_surface(sink->texture, surface, flags))
 889         goto error_transfer_surface;
 890
 891     target  = gst_vaapi_texture_get_target(sink->texture);
 892     texture = gst_vaapi_texture_get_id(sink->texture);
 893     if (target != GL_TEXTURE_2D || !texture)
 894         return FALSE;
 895
 896     if (sink->use_reflection)
 897         render_background(sink);
 898
 899     glEnable(target);
 900     glBindTexture(target, texture);
 901     {
 902         if (sink->use_reflection) {
 903             glPushMatrix();
 904             glRotatef(20.0f, 0.0f, 1.0f, 0.0f);
 905             glTranslatef(50.0f, 0.0f, 0.0f);
 906         }
 907         render_frame(sink);
 908         if (sink->use_reflection) {
 909             glPushMatrix();
 910             glTranslatef(0.0, (GLfloat)sink->display_rect.height + 5.0f, 0.0f);
 911             render_reflection(sink);
 912             glPopMatrix();
 913             glPopMatrix();
 914         }
 915     }
 916     glBindTexture(target, 0);
 917     glDisable(target);
 918     gst_vaapi_window_glx_swap_buffers(window);
 919     return TRUE;
 920
 921     /* ERRORS */
 922 error_create_texture:
 923     {
 924         GST_DEBUG("could not create VA/GLX texture");
 925         return FALSE;
 926     }
 927 error_transfer_surface:
 928     {
 929         GST_DEBUG("could not transfer VA surface to texture");
 930         return FALSE;
 931     }
 932 }
 933 #endif
 934
 935 static inline gboolean
 936 gst_vaapisink_put_surface(
 937     GstVaapiSink    *sink,
 938     GstVaapiSurface *surface,
 939     guint            flags
 940 )
 941 {
 942     if (!gst_vaapi_window_put_surface(sink->window, surface,
 943                 NULL, &sink->display_rect, flags)) {
 944         GST_DEBUG("could not render VA surface");
 945         return FALSE;
 946     }
 947     return TRUE;
 948 }
 949
 950 static GstFlowReturn
 951 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *src_buffer)
 952 {
 953     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 954     GstVaapiVideoMeta *meta;
 955     GstVaapiSurface *surface;
 956     GstBuffer *buffer;
 957     guint flags;
 958     gboolean success;
 959
 960     meta = gst_buffer_get_vaapi_video_meta(src_buffer);
 961 #if GST_CHECK_VERSION(1,0,0)
 962     if (!meta)
 963         return GST_FLOW_EOS;
 964     buffer = gst_buffer_ref(src_buffer);
 965 #else
 966     if (meta)
 967         buffer = gst_buffer_ref(src_buffer);
 968     else if (sink->use_video_raw) {
 969         buffer = gst_vaapi_uploader_get_buffer(sink->uploader);
 970         if (!buffer)
 971             return GST_FLOW_EOS;
 972         meta = gst_buffer_get_vaapi_video_meta(buffer);
 973         if (!meta)
 974             goto error;
 975     }
 976     else
 977         return GST_FLOW_EOS;
 978
 979     if (sink->use_video_raw &&
 980         !gst_vaapi_uploader_process(sink->uploader, src_buffer, buffer)) {
 981         GST_WARNING("failed to process raw YUV buffer");
 982         goto error;
 983     }
 984 #endif
 985
 986     if (sink->display != gst_vaapi_video_meta_get_display(meta))
 987         gst_vaapi_display_replace(&sink->display,
 988             gst_vaapi_video_meta_get_display(meta));
 989
 990     if (!sink->window)
 991         goto error;
 992
 993     gst_vaapisink_ensure_rotation(sink, TRUE);
 994
 995     surface = gst_vaapi_video_meta_get_surface(meta);
 996     if (!surface)
 997         goto error;
 998
 999     GST_DEBUG("render surface %" GST_VAAPI_ID_FORMAT,
1000               GST_VAAPI_ID_ARGS(gst_vaapi_surface_get_id(surface)));
1001
1002     flags = gst_vaapi_video_meta_get_render_flags(meta);
1003
1004     if (!gst_vaapi_apply_composition(surface, src_buffer))
1005         GST_WARNING("could not update subtitles");
1006
1007     switch (sink->display_type) {
1008 #if USE_GLX
1009     case GST_VAAPI_DISPLAY_TYPE_GLX:
1010         success = gst_vaapisink_show_frame_glx(sink, surface, flags);
1011         break;
1012 #endif
1013 #if USE_DRM
1014     case GST_VAAPI_DISPLAY_TYPE_DRM:
1015         success = TRUE;
1016         break;
1017 #endif
1018 #if USE_X11
1019     case GST_VAAPI_DISPLAY_TYPE_X11:
1020         success = gst_vaapisink_put_surface(sink, surface, flags);
1021         break;
1022 #endif
1023 #if USE_WAYLAND
1024     case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
1025         success = gst_vaapisink_put_surface(sink, surface, flags);
1026         break;
1027 #endif
1028     default:
1029         GST_ERROR("unsupported display type %d", sink->display_type);
1030         success = FALSE;
1031         break;
1032     }
1033     if (!success)
1034         goto error;
1035
1036     /* Retain VA surface until the next one is displayed */
1037     if (sink->use_overlay)
1038         gst_buffer_replace(&sink->video_buffer, buffer);
1039     gst_buffer_unref(buffer);
1040     return GST_FLOW_OK;
1041
1042 error:
1043     gst_buffer_unref(buffer);
1044     return GST_FLOW_EOS;
1045 }
1046
1047 #if GST_CHECK_VERSION(1,0,0)
1048 static gboolean
1049 gst_vaapisink_propose_allocation(GstBaseSink *base_sink, GstQuery *query)
1050 {
1051     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1052     GstCaps *caps = NULL;
1053     gboolean need_pool;
1054
1055     gst_query_parse_allocation(query, &caps, &need_pool);
1056
1057     if (need_pool) {
1058         if (!caps)
1059             goto error_no_caps;
1060         if (!gst_vaapisink_ensure_video_buffer_pool(sink, caps))
1061             return FALSE;
1062         gst_query_add_allocation_pool(query, sink->video_buffer_pool,
1063             sink->video_buffer_size, 0, 0);
1064     }
1065
1066     gst_query_add_allocation_meta(query,
1067         GST_VAAPI_VIDEO_META_API_TYPE, NULL);
1068     gst_query_add_allocation_meta(query,
1069         GST_VIDEO_META_API_TYPE, NULL);
1070     gst_query_add_allocation_meta(query,
1071         GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
1072     return TRUE;
1073
1074     /* ERRORS */
1075 error_no_caps:
1076     {
1077         GST_ERROR("no caps specified");
1078         return FALSE;
1079     }
1080 }
1081 #else
1082 static GstFlowReturn
1083 gst_vaapisink_buffer_alloc(
1084     GstBaseSink        *base_sink,
1085     guint64             offset,
1086     guint               size,
1087     GstCaps            *caps,
1088     GstBuffer         **pbuf
1089 )
1090 {
1091     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1092     GstVideoInfo vi;
1093     GstBuffer *buf;
1094
1095     *pbuf = NULL;
1096
1097     if (!sink->use_video_raw) {
1098         /* Note: this code path is rarely used but for raw YUV formats
1099            from custom pipeline. Otherwise, GstBaseSink::set_caps() is
1100            called first, and GstBaseSink::buffer_alloc() is not called
1101            in VA surface format mode */
1102         if (!gst_video_info_from_caps(&vi, caps))
1103             return GST_FLOW_NOT_SUPPORTED;
1104         if (!GST_VIDEO_INFO_IS_YUV(&vi))
1105             return GST_FLOW_OK;
1106     }
1107
1108     if (!gst_vaapi_uploader_ensure_display(sink->uploader, sink->display))
1109         return GST_FLOW_NOT_SUPPORTED;
1110     if (!gst_vaapi_uploader_ensure_caps(sink->uploader, caps, NULL))
1111         return GST_FLOW_NOT_SUPPORTED;
1112
1113     buf = gst_vaapi_uploader_get_buffer(sink->uploader);
1114     if (!buf) {
1115         GST_WARNING("failed to allocate resources for raw YUV buffer");
1116         return GST_FLOW_NOT_SUPPORTED;
1117     }
1118
1119     *pbuf = buf;
1120     return GST_FLOW_OK;
1121 }
1122 #endif
1123
1124 static gboolean
1125 gst_vaapisink_query(GstBaseSink *base_sink, GstQuery *query)
1126 {
1127     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1128
1129     if (gst_vaapi_reply_to_query(query, sink->display)) {
1130         GST_DEBUG("sharing display %p", sink->display);
1131         return TRUE;
1132     }
1133     return GST_BASE_SINK_CLASS(gst_vaapisink_parent_class)->query(base_sink,
1134         query);
1135 }
1136
1137 static void
1138 gst_vaapisink_finalize(GObject *object)
1139 {
1140     gst_vaapisink_destroy(GST_VAAPISINK(object));
1141
1142     G_OBJECT_CLASS(gst_vaapisink_parent_class)->finalize(object);
1143 }
1144
1145 static void
1146 gst_vaapisink_set_property(
1147     GObject      *object,
1148     guint         prop_id,
1149     const GValue *value,
1150     GParamSpec   *pspec
1151 )
1152 {
1153     GstVaapiSink * const sink = GST_VAAPISINK(object);
1154
1155     switch (prop_id) {
1156     case PROP_DISPLAY_TYPE:
1157         sink->display_type = g_value_get_enum(value);
1158         break;
1159     case PROP_FULLSCREEN:
1160         sink->fullscreen = g_value_get_boolean(value);
1161         break;
1162     case PROP_SYNCHRONOUS:
1163         sink->synchronous = g_value_get_boolean(value);
1164         break;
1165     case PROP_USE_REFLECTION:
1166         sink->use_reflection = g_value_get_boolean(value);
1167         break;
1168     case PROP_ROTATION:
1169         sink->rotation_req = g_value_get_enum(value);
1170         break;
1171     default:
1172         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
1173         break;
1174     }
1175 }
1176
1177 static void
1178 gst_vaapisink_get_property(
1179     GObject    *object,
1180     guint       prop_id,
1181     GValue     *value,
1182     GParamSpec *pspec
1183 )
1184 {
1185     GstVaapiSink * const sink = GST_VAAPISINK(object);
1186
1187     switch (prop_id) {
1188     case PROP_DISPLAY_TYPE:
1189         g_value_set_enum(value, sink->display_type);
1190         break;
1191     case PROP_FULLSCREEN:
1192         g_value_set_boolean(value, sink->fullscreen);
1193         break;
1194     case PROP_SYNCHRONOUS:
1195         g_value_set_boolean(value, sink->synchronous);
1196         break;
1197     case PROP_USE_REFLECTION:
1198         g_value_set_boolean(value, sink->use_reflection);
1199         break;
1200     case PROP_ROTATION:
1201         g_value_set_enum(value, sink->rotation);
1202         break;
1203     default:
1204         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
1205         break;
1206     }
1207 }
1208
1209 static void
1210 gst_vaapisink_class_init(GstVaapiSinkClass *klass)
1211 {
1212     GObjectClass * const     object_class   = G_OBJECT_CLASS(klass);
1213     GstElementClass * const  element_class  = GST_ELEMENT_CLASS(klass);
1214     GstBaseSinkClass * const basesink_class = GST_BASE_SINK_CLASS(klass);
1215     GstPadTemplate *pad_template;
1216
1217     GST_DEBUG_CATEGORY_INIT(gst_debug_vaapisink,
1218                             GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
1219
1220     object_class->finalize       = gst_vaapisink_finalize;
1221     object_class->set_property   = gst_vaapisink_set_property;
1222     object_class->get_property   = gst_vaapisink_get_property;
1223
1224     basesink_class->start        = gst_vaapisink_start;
1225     basesink_class->stop         = gst_vaapisink_stop;
1226     basesink_class->get_caps     = gst_vaapisink_get_caps;
1227     basesink_class->set_caps     = gst_vaapisink_set_caps;
1228     basesink_class->preroll      = gst_vaapisink_show_frame;
1229     basesink_class->render       = gst_vaapisink_show_frame;
1230     basesink_class->query        = gst_vaapisink_query;
1231 #if GST_CHECK_VERSION(1,0,0)
1232     basesink_class->propose_allocation = gst_vaapisink_propose_allocation;
1233 #else
1234     basesink_class->buffer_alloc = gst_vaapisink_buffer_alloc;
1235 #endif
1236
1237     gst_element_class_set_static_metadata(element_class,
1238         "VA-API sink",
1239         "Sink/Video",
1240         GST_PLUGIN_DESC,
1241         "Gwenole Beauchesne <gwenole.beauchesne@intel.com>");
1242
1243     pad_template = gst_static_pad_template_get(&gst_vaapisink_sink_factory);
1244     gst_element_class_add_pad_template(element_class, pad_template);
1245
1246     g_object_class_install_property
1247         (object_class,
1248          PROP_DISPLAY_TYPE,
1249          g_param_spec_enum("display",
1250                            "display type",
1251                            "display type to use",
1252                            GST_VAAPI_TYPE_DISPLAY_TYPE,
1253                            GST_VAAPI_DISPLAY_TYPE_ANY,
1254                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1255
1256 #if USE_GLX
1257     g_object_class_install_property
1258         (object_class,
1259          PROP_USE_REFLECTION,
1260          g_param_spec_boolean("use-reflection",
1261                               "Reflection effect",
1262                               "Enables OpenGL reflection effect",
1263                               FALSE,
1264                               G_PARAM_READWRITE));
1265 #endif
1266
1267     g_object_class_install_property
1268         (object_class,
1269          PROP_FULLSCREEN,
1270          g_param_spec_boolean("fullscreen",
1271                               "Fullscreen",
1272                               "Requests window in fullscreen state",
1273                               FALSE,
1274                               G_PARAM_READWRITE));
1275
1276     /**
1277      * GstVaapiSink:synchronous:
1278      *
1279      * When enabled, runs the X display in synchronous mode. Note that
1280      * this is used only for debugging.
1281      */
1282     g_object_class_install_property
1283         (object_class,
1284          PROP_SYNCHRONOUS,
1285          g_param_spec_boolean("synchronous",
1286                               "Synchronous mode",
1287                               "Toggles X display synchronous mode",
1288                               FALSE,
1289                               G_PARAM_READWRITE));
1290
1291     /**
1292      * GstVaapiSink:rotation:
1293      *
1294      * The VA display rotation mode, expressed as a #GstVaapiRotation.
1295      */
1296     g_object_class_install_property
1297         (object_class,
1298          PROP_ROTATION,
1299          g_param_spec_enum(GST_VAAPI_DISPLAY_PROP_ROTATION,
1300                            "rotation",
1301                            "The display rotation mode",
1302                            GST_VAAPI_TYPE_ROTATION,
1303                            DEFAULT_ROTATION,
1304                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1305 }
1306
1307 static void
1308 gst_vaapisink_init(GstVaapiSink *sink)
1309 {
1310     sink->caps           = NULL;
1311     sink->display        = NULL;
1312     sink->window         = NULL;
1313     sink->window_width   = 0;
1314     sink->window_height  = 0;
1315     sink->texture        = NULL;
1316     sink->video_buffer   = NULL;
1317     sink->video_width    = 0;
1318     sink->video_height   = 0;
1319     sink->video_par_n    = 1;
1320     sink->video_par_d    = 1;
1321     sink->foreign_window = FALSE;
1322     sink->fullscreen     = FALSE;
1323     sink->synchronous    = FALSE;
1324     sink->display_type   = DEFAULT_DISPLAY_TYPE;
1325     sink->rotation       = DEFAULT_ROTATION;
1326     sink->rotation_req   = DEFAULT_ROTATION;
1327     sink->use_reflection = FALSE;
1328     sink->use_overlay    = FALSE;
1329     sink->use_rotation   = FALSE;
1330 }