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_GLX,
 157     PROP_USE_REFLECTION,
 158     PROP_ROTATION,
 159 };
 160
 161 #define DEFAULT_DISPLAY_TYPE            GST_VAAPI_DISPLAY_TYPE_ANY
 162 #define DEFAULT_ROTATION                GST_VAAPI_ROTATION_0
 163
 164 /* GstVideoOverlay interface */
 165
 166 #if USE_X11
 167 static gboolean
 168 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id);
 169 #endif
 170
 171 static GstFlowReturn
 172 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer);
 173
 174 static void
 175 gst_vaapisink_video_overlay_set_window_handle(GstVideoOverlay *overlay, guintptr window)
 176 {
 177     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 178
 179     /* Disable GLX rendering when vaapisink is using a foreign X
 180        window. It's pretty much useless */
 181     if (sink->display_type == GST_VAAPI_DISPLAY_TYPE_GLX)
 182         sink->display_type = GST_VAAPI_DISPLAY_TYPE_X11;
 183
 184     sink->foreign_window = TRUE;
 185
 186     switch (sink->display_type) {
 187 #if USE_X11
 188     case GST_VAAPI_DISPLAY_TYPE_X11:
 189         gst_vaapisink_ensure_window_xid(sink, window);
 190         break;
 191 #endif
 192     default:
 193         break;
 194     }
 195 }
 196
 197 static void
 198 gst_vaapisink_video_overlay_set_render_rectangle(
 199     GstVideoOverlay *overlay,
 200     gint         x,
 201     gint         y,
 202     gint         width,
 203     gint         height
 204 )
 205 {
 206     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 207     GstVaapiRectangle * const display_rect = &sink->display_rect;
 208
 209     display_rect->x      = x;
 210     display_rect->y      = y;
 211     display_rect->width  = width;
 212     display_rect->height = height;
 213
 214     GST_DEBUG("render rect (%d,%d):%ux%u",
 215               display_rect->x, display_rect->y,
 216               display_rect->width, display_rect->height);
 217 }
 218
 219 static void
 220 gst_vaapisink_video_overlay_expose(GstVideoOverlay *overlay)
 221 {
 222     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 223     GstBaseSink * const base_sink = GST_BASE_SINK(overlay);
 224     GstBuffer *buffer;
 225
 226     if (sink->use_overlay)
 227         buffer = sink->video_buffer ? gst_buffer_ref(sink->video_buffer) : NULL;
 228     else {
 229 #if GST_CHECK_VERSION(1,0,0)
 230         GstSample * const sample = gst_base_sink_get_last_sample(base_sink);
 231         if (!sample)
 232             return;
 233         buffer = gst_buffer_ref(gst_sample_get_buffer(sample));
 234         gst_sample_unref(sample);
 235 #else
 236         buffer = gst_base_sink_get_last_buffer(base_sink);
 237 #endif
 238     }
 239     if (buffer) {
 240         gst_vaapisink_show_frame(base_sink, buffer);
 241         gst_buffer_unref(buffer);
 242     }
 243 }
 244
 245 static void
 246 gst_vaapisink_video_overlay_iface_init(GstVideoOverlayInterface *iface)
 247 {
 248     iface->set_window_handle    = gst_vaapisink_video_overlay_set_window_handle;
 249     iface->set_render_rectangle = gst_vaapisink_video_overlay_set_render_rectangle;
 250     iface->expose               = gst_vaapisink_video_overlay_expose;
 251 }
 252
 253 static void
 254 gst_vaapisink_destroy(GstVaapiSink *sink)
 255 {
 256     gst_buffer_replace(&sink->video_buffer, NULL);
 257 #if USE_GLX
 258     gst_vaapi_texture_replace(&sink->texture, NULL);
 259 #endif
 260     gst_vaapi_display_replace(&sink->display, NULL);
 261     g_clear_object(&sink->uploader);
 262
 263     gst_caps_replace(&sink->caps, NULL);
 264 }
 265
 266 #if USE_X11
 267 /* Checks whether a ConfigureNotify event is in the queue */
 268 typedef struct _ConfigureNotifyEventPendingArgs ConfigureNotifyEventPendingArgs;
 269 struct _ConfigureNotifyEventPendingArgs {
 270     Window      window;
 271     guint       width;
 272     guint       height;
 273     gboolean    match;
 274 };
 275
 276 static Bool
 277 configure_notify_event_pending_cb(Display *dpy, XEvent *xev, XPointer arg)
 278 {
 279     ConfigureNotifyEventPendingArgs * const args =
 280         (ConfigureNotifyEventPendingArgs *)arg;
 281
 282     if (xev->type == ConfigureNotify &&
 283         xev->xconfigure.window == args->window &&
 284         xev->xconfigure.width  == args->width  &&
 285         xev->xconfigure.height == args->height)
 286         args->match = TRUE;
 287
 288     /* XXX: this is a hack to traverse the whole queue because we
 289        can't use XPeekIfEvent() since it could block */
 290     return False;
 291 }
 292
 293 static gboolean
 294 configure_notify_event_pending(
 295     GstVaapiSink *sink,
 296     Window        window,
 297     guint         width,
 298     guint         height
 299 )
 300 {
 301     ConfigureNotifyEventPendingArgs args;
 302     XEvent xev;
 303
 304     args.window = window;
 305     args.width  = width;
 306     args.height = height;
 307     args.match  = FALSE;
 308
 309     /* XXX: don't use XPeekIfEvent() because it might block */
 310     XCheckIfEvent(
 311         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 312         &xev,
 313         configure_notify_event_pending_cb, (XPointer)&args
 314     );
 315     return args.match;
 316 }
 317 #endif
 318
 319 static const gchar *
 320 get_display_type_name(GstVaapiDisplayType display_type)
 321 {
 322     gpointer const klass = g_type_class_peek(GST_VAAPI_TYPE_DISPLAY_TYPE);
 323     GEnumValue * const e = g_enum_get_value(klass, display_type);
 324
 325     if (e)
 326         return e->value_name;
 327     return "<unknown-type>";
 328 }
 329
 330 static inline gboolean
 331 gst_vaapisink_ensure_display(GstVaapiSink *sink)
 332 {
 333     GstVaapiDisplayType display_type;
 334     GstVaapiRenderMode render_mode;
 335     const gboolean had_display = sink->display != NULL;
 336
 337     if (!gst_vaapi_ensure_display(sink, sink->display_type, &sink->display))
 338         return FALSE;
 339
 340     display_type = gst_vaapi_display_get_display_type(sink->display);
 341     if (display_type != sink->display_type || (!had_display && sink->display)) {
 342         GST_INFO("created %s %p", get_display_type_name(display_type),
 343             sink->display);
 344         sink->display_type = display_type;
 345
 346         sink->use_overlay =
 347             gst_vaapi_display_get_render_mode(sink->display, &render_mode) &&
 348             render_mode == GST_VAAPI_RENDER_MODE_OVERLAY;
 349         GST_DEBUG("use %s rendering mode", sink->use_overlay ? "overlay" : "texture");
 350
 351         sink->use_rotation = gst_vaapi_display_has_property(
 352             sink->display, GST_VAAPI_DISPLAY_PROP_ROTATION);
 353     }
 354     return TRUE;
 355 }
 356
 357 static gboolean
 358 gst_vaapisink_ensure_uploader(GstVaapiSink *sink)
 359 {
 360     if (!gst_vaapisink_ensure_display(sink))
 361         return FALSE;
 362
 363     if (!sink->uploader) {
 364         sink->uploader = gst_vaapi_uploader_new(sink->display);
 365         if (!sink->uploader)
 366             return FALSE;
 367     }
 368     return TRUE;
 369 }
 370
 371 static gboolean
 372 gst_vaapisink_ensure_render_rect(GstVaapiSink *sink, guint width, guint height)
 373 {
 374     GstVaapiRectangle * const display_rect = &sink->display_rect;
 375     guint num, den, display_par_n, display_par_d;
 376     gboolean success;
 377
 378     /* Return success if caps are not set yet */
 379     if (!sink->caps)
 380         return TRUE;
 381
 382     GST_DEBUG("ensure render rect within %ux%u bounds", width, height);
 383
 384     gst_vaapi_display_get_pixel_aspect_ratio(
 385         sink->display,
 386         &display_par_n, &display_par_d
 387     );
 388     GST_DEBUG("display pixel-aspect-ratio %d/%d",
 389               display_par_n, display_par_d);
 390
 391     success = gst_video_calculate_display_ratio(
 392         &num, &den,
 393         sink->video_width, sink->video_height,
 394         sink->video_par_n, sink->video_par_d,
 395         display_par_n, display_par_d
 396     );
 397     if (!success)
 398         return FALSE;
 399     GST_DEBUG("video size %dx%d, calculated ratio %d/%d",
 400               sink->video_width, sink->video_height, num, den);
 401
 402     display_rect->width = gst_util_uint64_scale_int(height, num, den);
 403     if (display_rect->width <= width) {
 404         GST_DEBUG("keeping window height");
 405         display_rect->height = height;
 406     }
 407     else {
 408         GST_DEBUG("keeping window width");
 409         display_rect->width  = width;
 410         display_rect->height =
 411             gst_util_uint64_scale_int(width, den, num);
 412     }
 413     GST_DEBUG("scaling video to %ux%u", display_rect->width, display_rect->height);
 414
 415     g_assert(display_rect->width  <= width);
 416     g_assert(display_rect->height <= height);
 417
 418     display_rect->x = (width  - display_rect->width)  / 2;
 419     display_rect->y = (height - display_rect->height) / 2;
 420
 421     GST_DEBUG("render rect (%d,%d):%ux%u",
 422               display_rect->x, display_rect->y,
 423               display_rect->width, display_rect->height);
 424     return TRUE;
 425 }
 426
 427 static void
 428 gst_vaapisink_ensure_window_size(GstVaapiSink *sink, guint *pwidth, guint *pheight)
 429 {
 430     GstVideoRectangle src_rect, dst_rect, out_rect;
 431     guint num, den, display_width, display_height, display_par_n, display_par_d;
 432     gboolean success, scale;
 433
 434     if (sink->foreign_window) {
 435         *pwidth  = sink->window_width;
 436         *pheight = sink->window_height;
 437         return;
 438     }
 439
 440     gst_vaapi_display_get_size(sink->display, &display_width, &display_height);
 441     if (sink->fullscreen) {
 442         *pwidth  = display_width;
 443         *pheight = display_height;
 444         return;
 445     }
 446
 447     gst_vaapi_display_get_pixel_aspect_ratio(
 448         sink->display,
 449         &display_par_n, &display_par_d
 450     );
 451
 452     success = gst_video_calculate_display_ratio(
 453         &num, &den,
 454         sink->video_width, sink->video_height,
 455         sink->video_par_n, sink->video_par_d,
 456         display_par_n, display_par_d
 457     );
 458     if (!success) {
 459         num = sink->video_par_n;
 460         den = sink->video_par_d;
 461     }
 462
 463     src_rect.x = 0;
 464     src_rect.y = 0;
 465     src_rect.w = gst_util_uint64_scale_int(sink->video_height, num, den);
 466     src_rect.h = sink->video_height;
 467     dst_rect.x = 0;
 468     dst_rect.y = 0;
 469     dst_rect.w = display_width;
 470     dst_rect.h = display_height;
 471     scale      = (src_rect.w > dst_rect.w || src_rect.h > dst_rect.h);
 472     gst_video_sink_center_rect(src_rect, dst_rect, &out_rect, scale);
 473     *pwidth    = out_rect.w;
 474     *pheight   = out_rect.h;
 475 }
 476
 477 static inline gboolean
 478 gst_vaapisink_ensure_window(GstVaapiSink *sink, guint width, guint height)
 479 {
 480     GstVaapiDisplay * const display = sink->display;
 481
 482     if (!sink->window) {
 483         switch (sink->display_type) {
 484 #if USE_GLX
 485         case GST_VAAPI_DISPLAY_TYPE_GLX:
 486             sink->window = gst_vaapi_window_glx_new(display, width, height);
 487             goto notify_video_overlay_interface;
 488 #endif
 489 #if USE_X11
 490         case GST_VAAPI_DISPLAY_TYPE_X11:
 491             sink->window = gst_vaapi_window_x11_new(display, width, height);
 492         notify_video_overlay_interface:
 493             if (!sink->window)
 494                 break;
 495             gst_video_overlay_got_window_handle(
 496                 GST_VIDEO_OVERLAY(sink),
 497                 gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window))
 498             );
 499             break;
 500 #endif
 501 #if USE_WAYLAND
 502         case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
 503             sink->window = gst_vaapi_window_wayland_new(display, width, height);
 504             break;
 505 #endif
 506         default:
 507             GST_ERROR("unsupported display type %d", sink->display_type);
 508             return FALSE;
 509         }
 510     }
 511     return sink->window != NULL;
 512 }
 513
 514 #if USE_X11
 515 static gboolean
 516 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id)
 517 {
 518     Window rootwin;
 519     unsigned int width, height, border_width, depth;
 520     int x, y;
 521     XID xid = window_id;
 522
 523     if (!gst_vaapisink_ensure_display(sink))
 524         return FALSE;
 525
 526     gst_vaapi_display_lock(sink->display);
 527     XGetGeometry(
 528         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 529         xid,
 530         &rootwin,
 531         &x, &y, &width, &height, &border_width, &depth
 532     );
 533     gst_vaapi_display_unlock(sink->display);
 534
 535     if ((width != sink->window_width || height != sink->window_height) &&
 536         !configure_notify_event_pending(sink, xid, width, height)) {
 537         if (!gst_vaapisink_ensure_render_rect(sink, width, height))
 538             return FALSE;
 539         sink->window_width  = width;
 540         sink->window_height = height;
 541     }
 542
 543     if (sink->window &&
 544         gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window)) == xid)
 545         return TRUE;
 546
 547     gst_vaapi_window_replace(&sink->window, NULL);
 548
 549     switch (sink->display_type) {
 550 #if USE_GLX
 551     case GST_VAAPI_DISPLAY_TYPE_GLX:
 552         sink->window = gst_vaapi_window_glx_new_with_xid(sink->display, xid);
 553         break;
 554 #endif
 555     case GST_VAAPI_DISPLAY_TYPE_X11:
 556         sink->window = gst_vaapi_window_x11_new_with_xid(sink->display, xid);
 557         break;
 558     default:
 559         GST_ERROR("unsupported display type %d", sink->display_type);
 560         return FALSE;
 561     }
 562     return sink->window != NULL;
 563 }
 564 #endif
 565
 566 static gboolean
 567 gst_vaapisink_ensure_rotation(GstVaapiSink *sink, gboolean recalc_display_rect)
 568 {
 569     gboolean success = FALSE;
 570
 571     g_return_val_if_fail(sink->display, FALSE);
 572
 573     if (sink->rotation == sink->rotation_req)
 574         return TRUE;
 575
 576     if (!sink->use_rotation) {
 577         GST_WARNING("VA display does not support rotation");
 578         goto end;
 579     }
 580
 581     gst_vaapi_display_lock(sink->display);
 582     success = gst_vaapi_display_set_rotation(sink->display, sink->rotation_req);
 583     gst_vaapi_display_unlock(sink->display);
 584     if (!success) {
 585         GST_ERROR("failed to change VA display rotation mode");
 586         goto end;
 587     }
 588
 589     if (((sink->rotation + sink->rotation_req) % 180) == 90) {
 590         /* Orientation changed */
 591         G_PRIMITIVE_SWAP(guint, sink->video_width, sink->video_height);
 592         G_PRIMITIVE_SWAP(gint, sink->video_par_n, sink->video_par_d);
 593     }
 594
 595     if (recalc_display_rect && !sink->foreign_window)
 596         gst_vaapisink_ensure_render_rect(sink, sink->window_width,
 597             sink->window_height);
 598     success = TRUE;
 599
 600 end:
 601     sink->rotation = sink->rotation_req;
 602     return success;
 603 }
 604
 605 static gboolean
 606 gst_vaapisink_ensure_video_buffer_pool(GstVaapiSink *sink, GstCaps *caps)
 607 {
 608 #if GST_CHECK_VERSION(1,0,0)
 609     GstBufferPool *pool;
 610     GstCaps *pool_caps;
 611     GstStructure *config;
 612     GstVideoInfo vi;
 613     gboolean need_pool;
 614
 615     if (!gst_vaapisink_ensure_display(sink))
 616         return FALSE;
 617
 618     if (sink->video_buffer_pool) {
 619         config = gst_buffer_pool_get_config(sink->video_buffer_pool);
 620         gst_buffer_pool_config_get_params(config, &pool_caps, NULL, NULL, NULL);
 621         need_pool = !gst_caps_is_equal(caps, pool_caps);
 622         gst_structure_free(config);
 623         if (!need_pool)
 624             return TRUE;
 625         g_clear_object(&sink->video_buffer_pool);
 626         sink->video_buffer_size = 0;
 627     }
 628
 629     pool = gst_vaapi_video_buffer_pool_new(sink->display);
 630     if (!pool)
 631         goto error_create_pool;
 632
 633     gst_video_info_init(&vi);
 634     gst_video_info_from_caps(&vi, caps);
 635     if (GST_VIDEO_INFO_FORMAT(&vi) == GST_VIDEO_FORMAT_ENCODED) {
 636         GST_DEBUG("assume video buffer pool format is NV12");
 637         gst_video_info_set_format(&vi, GST_VIDEO_FORMAT_NV12,
 638             GST_VIDEO_INFO_WIDTH(&vi), GST_VIDEO_INFO_HEIGHT(&vi));
 639     }
 640     sink->video_buffer_size = vi.size;
 641
 642     config = gst_buffer_pool_get_config(pool);
 643     gst_buffer_pool_config_set_params(config, caps, sink->video_buffer_size,
 644         0, 0);
 645     gst_buffer_pool_config_add_option(config,
 646         GST_BUFFER_POOL_OPTION_VAAPI_VIDEO_META);
 647     if (!gst_buffer_pool_set_config(pool, config))
 648         goto error_pool_config;
 649     sink->video_buffer_pool = pool;
 650     return TRUE;
 651
 652     /* ERRORS */
 653 error_create_pool:
 654     {
 655         GST_ERROR("failed to create buffer pool");
 656         return FALSE;
 657     }
 658 error_pool_config:
 659     {
 660         GST_ERROR("failed to reset buffer pool config");
 661         gst_object_unref(pool);
 662         return FALSE;
 663     }
 664 #else
 665     return TRUE;
 666 #endif
 667 }
 668
 669 static gboolean
 670 gst_vaapisink_start(GstBaseSink *base_sink)
 671 {
 672     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 673
 674     if (!gst_vaapisink_ensure_display(sink))
 675         return FALSE;
 676
 677     sink->uploader = gst_vaapi_uploader_new(sink->display);
 678     if (!sink->uploader)
 679         return FALSE;
 680     return TRUE;
 681 }
 682
 683 static gboolean
 684 gst_vaapisink_stop(GstBaseSink *base_sink)
 685 {
 686     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 687
 688     gst_buffer_replace(&sink->video_buffer, NULL);
 689 #if GST_CHECK_VERSION(1,0,0)
 690     g_clear_object(&sink->video_buffer_pool);
 691 #endif
 692     gst_vaapi_window_replace(&sink->window, NULL);
 693     gst_vaapi_display_replace(&sink->display, NULL);
 694     g_clear_object(&sink->uploader);
 695
 696     return TRUE;
 697 }
 698
 699 static GstCaps *
 700 gst_vaapisink_get_caps_impl(GstBaseSink *base_sink)
 701 {
 702     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 703     GstCaps *out_caps, *yuv_caps;
 704
 705     out_caps = gst_caps_from_string(GST_VAAPI_SURFACE_CAPS);
 706     if (!out_caps)
 707         return NULL;
 708
 709     if (gst_vaapisink_ensure_uploader(sink)) {
 710         yuv_caps = gst_vaapi_uploader_get_caps(sink->uploader);
 711         if (yuv_caps)
 712             gst_caps_append(out_caps, gst_caps_copy(yuv_caps));
 713     }
 714     return out_caps;
 715 }
 716
 717 #if GST_CHECK_VERSION(1,0,0)
 718 static inline GstCaps *
 719 gst_vaapisink_get_caps(GstBaseSink *base_sink, GstCaps *filter)
 720 {
 721     return gst_vaapisink_get_caps_impl(base_sink);
 722 }
 723 #else
 724 #define gst_vaapisink_get_caps gst_vaapisink_get_caps_impl
 725 #endif
 726
 727 static gboolean
 728 gst_vaapisink_set_caps(GstBaseSink *base_sink, GstCaps *caps)
 729 {
 730     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 731     GstVideoInfo vi;
 732     guint win_width, win_height;
 733
 734 #if USE_DRM
 735     if (sink->display_type == GST_VAAPI_DISPLAY_TYPE_DRM)
 736         return TRUE;
 737 #endif
 738
 739     if (!gst_vaapisink_ensure_video_buffer_pool(sink, caps))
 740         return FALSE;
 741
 742     if (!gst_video_info_from_caps(&vi, caps))
 743         return FALSE;
 744     sink->use_video_raw = GST_VIDEO_INFO_IS_YUV(&vi);
 745     sink->video_width   = GST_VIDEO_INFO_WIDTH(&vi);
 746     sink->video_height  = GST_VIDEO_INFO_HEIGHT(&vi);
 747     sink->video_par_n   = GST_VIDEO_INFO_PAR_N(&vi);
 748     sink->video_par_d   = GST_VIDEO_INFO_PAR_D(&vi);
 749     GST_DEBUG("video pixel-aspect-ratio %d/%d",
 750               sink->video_par_n, sink->video_par_d);
 751
 752     gst_caps_replace(&sink->caps, caps);
 753
 754     if (!gst_vaapisink_ensure_display(sink))
 755         return FALSE;
 756
 757     gst_vaapisink_ensure_rotation(sink, FALSE);
 758
 759     gst_vaapisink_ensure_window_size(sink, &win_width, &win_height);
 760     if (sink->window) {
 761         if (!sink->foreign_window || sink->fullscreen)
 762             gst_vaapi_window_set_size(sink->window, win_width, win_height);
 763     }
 764     else {
 765         gst_vaapi_display_lock(sink->display);
 766         gst_video_overlay_prepare_window_handle(GST_VIDEO_OVERLAY(sink));
 767         gst_vaapi_display_unlock(sink->display);
 768         if (sink->window)
 769             return TRUE;
 770         if (!gst_vaapisink_ensure_window(sink, win_width, win_height))
 771             return FALSE;
 772         gst_vaapi_window_set_fullscreen(sink->window, sink->fullscreen);
 773         gst_vaapi_window_show(sink->window);
 774         gst_vaapi_window_get_size(sink->window, &win_width, &win_height);
 775     }
 776     sink->window_width  = win_width;
 777     sink->window_height = win_height;
 778     GST_DEBUG("window size %ux%u", win_width, win_height);
 779
 780     return gst_vaapisink_ensure_render_rect(sink, win_width, win_height);
 781 }
 782
 783 #if USE_GLX
 784 static void
 785 render_background(GstVaapiSink *sink)
 786 {
 787     /* Original code from Mirco Muller (MacSlow):
 788        <http://cgit.freedesktop.org/~macslow/gl-gst-player/> */
 789     GLfloat fStartX = 0.0f;
 790     GLfloat fStartY = 0.0f;
 791     GLfloat fWidth  = (GLfloat)sink->window_width;
 792     GLfloat fHeight = (GLfloat)sink->window_height;
 793
 794     glClear(GL_COLOR_BUFFER_BIT);
 795     glBegin(GL_QUADS);
 796     {
 797         /* top third, darker grey to white */
 798         glColor3f(0.85f, 0.85f, 0.85f);
 799         glVertex3f(fStartX, fStartY, 0.0f);
 800         glColor3f(0.85f, 0.85f, 0.85f);
 801         glVertex3f(fStartX + fWidth, fStartY, 0.0f);
 802         glColor3f(1.0f, 1.0f, 1.0f);
 803         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 804         glColor3f(1.0f, 1.0f, 1.0f);
 805         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 806
 807         /* middle third, just plain white */
 808         glColor3f(1.0f, 1.0f, 1.0f);
 809         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 810         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 811         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 812         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 813
 814         /* bottom third, white to lighter grey */
 815         glColor3f(1.0f, 1.0f, 1.0f);
 816         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 817         glColor3f(1.0f, 1.0f, 1.0f);
 818         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 819         glColor3f(0.62f, 0.66f, 0.69f);
 820         glVertex3f(fStartX + fWidth, fStartY + fHeight, 0.0f);
 821         glColor3f(0.62f, 0.66f, 0.69f);
 822         glVertex3f(fStartX, fStartY + fHeight, 0.0f);
 823     }
 824     glEnd();
 825 }
 826
 827 static void
 828 render_frame(GstVaapiSink *sink)
 829 {
 830     const guint x1 = sink->display_rect.x;
 831     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 832     const guint y1 = sink->display_rect.y;
 833     const guint y2 = sink->display_rect.y + sink->display_rect.height;
 834
 835     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 836     glBegin(GL_QUADS);
 837     {
 838         glTexCoord2f(0.0f, 0.0f); glVertex2i(x1, y1);
 839         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y2);
 840         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y2);
 841         glTexCoord2f(1.0f, 0.0f); glVertex2i(x2, y1);
 842     }
 843     glEnd();
 844 }
 845
 846 static void
 847 render_reflection(GstVaapiSink *sink)
 848 {
 849     const guint x1 = sink->display_rect.x;
 850     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 851     const guint y1 = sink->display_rect.y;
 852     const guint rh = sink->display_rect.height / 5;
 853     GLfloat     ry = 1.0f - (GLfloat)rh / (GLfloat)sink->display_rect.height;
 854
 855     glBegin(GL_QUADS);
 856     {
 857         glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 858         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y1);
 859         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y1);
 860
 861         glColor4f(1.0f, 1.0f, 1.0f, 0.0f);
 862         glTexCoord2f(1.0f, ry); glVertex2i(x2, y1 + rh);
 863         glTexCoord2f(0.0f, ry); glVertex2i(x1, y1 + rh);
 864     }
 865     glEnd();
 866 }
 867
 868 static gboolean
 869 gst_vaapisink_show_frame_glx(
 870     GstVaapiSink    *sink,
 871     GstVaapiSurface *surface,
 872     guint            flags
 873 )
 874 {
 875     GstVaapiWindowGLX * const window = GST_VAAPI_WINDOW_GLX(sink->window);
 876     GLenum target;
 877     GLuint texture;
 878
 879     gst_vaapi_window_glx_make_current(window);
 880     if (!sink->texture) {
 881         sink->texture = gst_vaapi_texture_new(
 882             sink->display,
 883             GL_TEXTURE_2D,
 884             GL_BGRA,
 885             sink->video_width,
 886             sink->video_height
 887         );
 888         if (!sink->texture)
 889             goto error_create_texture;
 890     }
 891     if (!gst_vaapi_texture_put_surface(sink->texture, surface, flags))
 892         goto error_transfer_surface;
 893
 894     target  = gst_vaapi_texture_get_target(sink->texture);
 895     texture = gst_vaapi_texture_get_id(sink->texture);
 896     if (target != GL_TEXTURE_2D || !texture)
 897         return FALSE;
 898
 899     if (sink->use_reflection)
 900         render_background(sink);
 901
 902     glEnable(target);
 903     glBindTexture(target, texture);
 904     {
 905         if (sink->use_reflection) {
 906             glPushMatrix();
 907             glRotatef(20.0f, 0.0f, 1.0f, 0.0f);
 908             glTranslatef(50.0f, 0.0f, 0.0f);
 909         }
 910         render_frame(sink);
 911         if (sink->use_reflection) {
 912             glPushMatrix();
 913             glTranslatef(0.0, (GLfloat)sink->display_rect.height + 5.0f, 0.0f);
 914             render_reflection(sink);
 915             glPopMatrix();
 916             glPopMatrix();
 917         }
 918     }
 919     glBindTexture(target, 0);
 920     glDisable(target);
 921     gst_vaapi_window_glx_swap_buffers(window);
 922     return TRUE;
 923
 924     /* ERRORS */
 925 error_create_texture:
 926     {
 927         GST_DEBUG("could not create VA/GLX texture");
 928         return FALSE;
 929     }
 930 error_transfer_surface:
 931     {
 932         GST_DEBUG("could not transfer VA surface to texture");
 933         return FALSE;
 934     }
 935 }
 936 #endif
 937
 938 static inline gboolean
 939 gst_vaapisink_put_surface(
 940     GstVaapiSink    *sink,
 941     GstVaapiSurface *surface,
 942     guint            flags
 943 )
 944 {
 945     if (!gst_vaapi_window_put_surface(sink->window, surface,
 946                 NULL, &sink->display_rect, flags)) {
 947         GST_DEBUG("could not render VA surface");
 948         return FALSE;
 949     }
 950     return TRUE;
 951 }
 952
 953 static GstFlowReturn
 954 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *src_buffer)
 955 {
 956     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 957     GstVaapiVideoMeta *meta;
 958     GstVaapiSurface *surface;
 959     GstBuffer *buffer;
 960     guint flags;
 961     gboolean success;
 962
 963     meta = gst_buffer_get_vaapi_video_meta(src_buffer);
 964 #if GST_CHECK_VERSION(1,0,0)
 965     if (!meta)
 966         return GST_FLOW_EOS;
 967     buffer = gst_buffer_ref(src_buffer);
 968 #else
 969     if (meta)
 970         buffer = gst_buffer_ref(src_buffer);
 971     else if (sink->use_video_raw) {
 972         buffer = gst_vaapi_uploader_get_buffer(sink->uploader);
 973         if (!buffer)
 974             return GST_FLOW_EOS;
 975         meta = gst_buffer_get_vaapi_video_meta(buffer);
 976         if (!meta)
 977             goto error;
 978     }
 979     else
 980         return GST_FLOW_EOS;
 981
 982     if (sink->use_video_raw &&
 983         !gst_vaapi_uploader_process(sink->uploader, src_buffer, buffer)) {
 984         GST_WARNING("failed to process raw YUV buffer");
 985         goto error;
 986     }
 987 #endif
 988
 989     if (sink->display != gst_vaapi_video_meta_get_display(meta))
 990         gst_vaapi_display_replace(&sink->display,
 991             gst_vaapi_video_meta_get_display(meta));
 992
 993     if (!sink->window)
 994         goto error;
 995
 996     gst_vaapisink_ensure_rotation(sink, TRUE);
 997
 998     surface = gst_vaapi_video_meta_get_surface(meta);
 999     if (!surface)
1000         goto error;
1001
1002     GST_DEBUG("render surface %" GST_VAAPI_ID_FORMAT,
1003               GST_VAAPI_ID_ARGS(gst_vaapi_surface_get_id(surface)));
1004
1005     flags = gst_vaapi_video_meta_get_render_flags(meta);
1006
1007     if (!gst_vaapi_apply_composition(surface, src_buffer))
1008         GST_WARNING("could not update subtitles");
1009
1010     switch (sink->display_type) {
1011 #if USE_DRM
1012     case GST_VAAPI_DISPLAY_TYPE_DRM:
1013         success = TRUE;
1014         break;
1015 #endif
1016 #if USE_GLX
1017     case GST_VAAPI_DISPLAY_TYPE_GLX:
1018         if (!sink->use_glx)
1019             goto put_surface_x11;
1020         success = gst_vaapisink_show_frame_glx(sink, surface, flags);
1021         break;
1022 #endif
1023 #if USE_X11
1024     case GST_VAAPI_DISPLAY_TYPE_X11:
1025     put_surface_x11:
1026         success = gst_vaapisink_put_surface(sink, surface, flags);
1027         break;
1028 #endif
1029 #if USE_WAYLAND
1030     case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
1031         success = gst_vaapisink_put_surface(sink, surface, flags);
1032         break;
1033 #endif
1034     default:
1035         GST_ERROR("unsupported display type %d", sink->display_type);
1036         success = FALSE;
1037         break;
1038     }
1039     if (!success)
1040         goto error;
1041
1042     /* Retain VA surface until the next one is displayed */
1043     if (sink->use_overlay)
1044         gst_buffer_replace(&sink->video_buffer, buffer);
1045     gst_buffer_unref(buffer);
1046     return GST_FLOW_OK;
1047
1048 error:
1049     gst_buffer_unref(buffer);
1050     return GST_FLOW_EOS;
1051 }
1052
1053 #if GST_CHECK_VERSION(1,0,0)
1054 static gboolean
1055 gst_vaapisink_propose_allocation(GstBaseSink *base_sink, GstQuery *query)
1056 {
1057     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1058     GstCaps *caps = NULL;
1059     gboolean need_pool;
1060
1061     gst_query_parse_allocation(query, &caps, &need_pool);
1062
1063     if (need_pool) {
1064         if (!caps)
1065             goto error_no_caps;
1066         if (!gst_vaapisink_ensure_video_buffer_pool(sink, caps))
1067             return FALSE;
1068         gst_query_add_allocation_pool(query, sink->video_buffer_pool,
1069             sink->video_buffer_size, 0, 0);
1070     }
1071
1072     gst_query_add_allocation_meta(query,
1073         GST_VAAPI_VIDEO_META_API_TYPE, NULL);
1074     gst_query_add_allocation_meta(query,
1075         GST_VIDEO_META_API_TYPE, NULL);
1076     gst_query_add_allocation_meta(query,
1077         GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
1078     return TRUE;
1079
1080     /* ERRORS */
1081 error_no_caps:
1082     {
1083         GST_ERROR("no caps specified");
1084         return FALSE;
1085     }
1086 }
1087 #else
1088 static GstFlowReturn
1089 gst_vaapisink_buffer_alloc(
1090     GstBaseSink        *base_sink,
1091     guint64             offset,
1092     guint               size,
1093     GstCaps            *caps,
1094     GstBuffer         **pbuf
1095 )
1096 {
1097     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1098     GstVideoInfo vi;
1099     GstBuffer *buf;
1100
1101     *pbuf = NULL;
1102
1103     if (!sink->use_video_raw) {
1104         /* Note: this code path is rarely used but for raw YUV formats
1105            from custom pipeline. Otherwise, GstBaseSink::set_caps() is
1106            called first, and GstBaseSink::buffer_alloc() is not called
1107            in VA surface format mode */
1108         if (!gst_video_info_from_caps(&vi, caps))
1109             return GST_FLOW_NOT_SUPPORTED;
1110         if (!GST_VIDEO_INFO_IS_YUV(&vi))
1111             return GST_FLOW_OK;
1112     }
1113
1114     if (!gst_vaapi_uploader_ensure_display(sink->uploader, sink->display))
1115         return GST_FLOW_NOT_SUPPORTED;
1116     if (!gst_vaapi_uploader_ensure_caps(sink->uploader, caps, NULL))
1117         return GST_FLOW_NOT_SUPPORTED;
1118
1119     buf = gst_vaapi_uploader_get_buffer(sink->uploader);
1120     if (!buf) {
1121         GST_WARNING("failed to allocate resources for raw YUV buffer");
1122         return GST_FLOW_NOT_SUPPORTED;
1123     }
1124
1125     *pbuf = buf;
1126     return GST_FLOW_OK;
1127 }
1128 #endif
1129
1130 static gboolean
1131 gst_vaapisink_query(GstBaseSink *base_sink, GstQuery *query)
1132 {
1133     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1134
1135     if (gst_vaapi_reply_to_query(query, sink->display)) {
1136         GST_DEBUG("sharing display %p", sink->display);
1137         return TRUE;
1138     }
1139     return GST_BASE_SINK_CLASS(gst_vaapisink_parent_class)->query(base_sink,
1140         query);
1141 }
1142
1143 static void
1144 gst_vaapisink_finalize(GObject *object)
1145 {
1146     gst_vaapisink_destroy(GST_VAAPISINK(object));
1147
1148     G_OBJECT_CLASS(gst_vaapisink_parent_class)->finalize(object);
1149 }
1150
1151 static void
1152 gst_vaapisink_set_property(
1153     GObject      *object,
1154     guint         prop_id,
1155     const GValue *value,
1156     GParamSpec   *pspec
1157 )
1158 {
1159     GstVaapiSink * const sink = GST_VAAPISINK(object);
1160
1161     switch (prop_id) {
1162     case PROP_DISPLAY_TYPE:
1163         sink->display_type = g_value_get_enum(value);
1164         break;
1165     case PROP_FULLSCREEN:
1166         sink->fullscreen = g_value_get_boolean(value);
1167         break;
1168     case PROP_SYNCHRONOUS:
1169         sink->synchronous = g_value_get_boolean(value);
1170         break;
1171     case PROP_USE_GLX:
1172         sink->use_glx = g_value_get_boolean(value);
1173         break;
1174     case PROP_USE_REFLECTION:
1175         sink->use_reflection = g_value_get_boolean(value);
1176         break;
1177     case PROP_ROTATION:
1178         sink->rotation_req = g_value_get_enum(value);
1179         break;
1180     default:
1181         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
1182         break;
1183     }
1184 }
1185
1186 static void
1187 gst_vaapisink_get_property(
1188     GObject    *object,
1189     guint       prop_id,
1190     GValue     *value,
1191     GParamSpec *pspec
1192 )
1193 {
1194     GstVaapiSink * const sink = GST_VAAPISINK(object);
1195
1196     switch (prop_id) {
1197     case PROP_DISPLAY_TYPE:
1198         g_value_set_enum(value, sink->display_type);
1199         break;
1200     case PROP_FULLSCREEN:
1201         g_value_set_boolean(value, sink->fullscreen);
1202         break;
1203     case PROP_SYNCHRONOUS:
1204         g_value_set_boolean(value, sink->synchronous);
1205         break;
1206     case PROP_USE_GLX:
1207         g_value_set_boolean(value, sink->use_glx);
1208         break;
1209     case PROP_USE_REFLECTION:
1210         g_value_set_boolean(value, sink->use_reflection);
1211         break;
1212     case PROP_ROTATION:
1213         g_value_set_enum(value, sink->rotation);
1214         break;
1215     default:
1216         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
1217         break;
1218     }
1219 }
1220
1221 static void
1222 gst_vaapisink_class_init(GstVaapiSinkClass *klass)
1223 {
1224     GObjectClass * const     object_class   = G_OBJECT_CLASS(klass);
1225     GstElementClass * const  element_class  = GST_ELEMENT_CLASS(klass);
1226     GstBaseSinkClass * const basesink_class = GST_BASE_SINK_CLASS(klass);
1227     GstPadTemplate *pad_template;
1228
1229     GST_DEBUG_CATEGORY_INIT(gst_debug_vaapisink,
1230                             GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
1231
1232     object_class->finalize       = gst_vaapisink_finalize;
1233     object_class->set_property   = gst_vaapisink_set_property;
1234     object_class->get_property   = gst_vaapisink_get_property;
1235
1236     basesink_class->start        = gst_vaapisink_start;
1237     basesink_class->stop         = gst_vaapisink_stop;
1238     basesink_class->get_caps     = gst_vaapisink_get_caps;
1239     basesink_class->set_caps     = gst_vaapisink_set_caps;
1240     basesink_class->preroll      = gst_vaapisink_show_frame;
1241     basesink_class->render       = gst_vaapisink_show_frame;
1242     basesink_class->query        = gst_vaapisink_query;
1243 #if GST_CHECK_VERSION(1,0,0)
1244     basesink_class->propose_allocation = gst_vaapisink_propose_allocation;
1245 #else
1246     basesink_class->buffer_alloc = gst_vaapisink_buffer_alloc;
1247 #endif
1248
1249     gst_element_class_set_static_metadata(element_class,
1250         "VA-API sink",
1251         "Sink/Video",
1252         GST_PLUGIN_DESC,
1253         "Gwenole Beauchesne <gwenole.beauchesne@intel.com>");
1254
1255     pad_template = gst_static_pad_template_get(&gst_vaapisink_sink_factory);
1256     gst_element_class_add_pad_template(element_class, pad_template);
1257
1258     g_object_class_install_property
1259         (object_class,
1260          PROP_DISPLAY_TYPE,
1261          g_param_spec_enum("display",
1262                            "display type",
1263                            "display type to use",
1264                            GST_VAAPI_TYPE_DISPLAY_TYPE,
1265                            GST_VAAPI_DISPLAY_TYPE_ANY,
1266                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1267
1268 #if USE_GLX
1269     g_object_class_install_property
1270         (object_class,
1271          PROP_USE_GLX,
1272          g_param_spec_boolean("use-glx",
1273                               "OpenGL rendering",
1274                               "Enables OpenGL rendering",
1275                               FALSE,
1276                               G_PARAM_READWRITE));
1277
1278     g_object_class_install_property
1279         (object_class,
1280          PROP_USE_REFLECTION,
1281          g_param_spec_boolean("use-reflection",
1282                               "Reflection effect",
1283                               "Enables OpenGL reflection effect",
1284                               FALSE,
1285                               G_PARAM_READWRITE));
1286 #endif
1287
1288     g_object_class_install_property
1289         (object_class,
1290          PROP_FULLSCREEN,
1291          g_param_spec_boolean("fullscreen",
1292                               "Fullscreen",
1293                               "Requests window in fullscreen state",
1294                               FALSE,
1295                               G_PARAM_READWRITE));
1296
1297     /**
1298      * GstVaapiSink:synchronous:
1299      *
1300      * When enabled, runs the X display in synchronous mode. Note that
1301      * this is used only for debugging.
1302      */
1303     g_object_class_install_property
1304         (object_class,
1305          PROP_SYNCHRONOUS,
1306          g_param_spec_boolean("synchronous",
1307                               "Synchronous mode",
1308                               "Toggles X display synchronous mode",
1309                               FALSE,
1310                               G_PARAM_READWRITE));
1311
1312     /**
1313      * GstVaapiSink:rotation:
1314      *
1315      * The VA display rotation mode, expressed as a #GstVaapiRotation.
1316      */
1317     g_object_class_install_property
1318         (object_class,
1319          PROP_ROTATION,
1320          g_param_spec_enum(GST_VAAPI_DISPLAY_PROP_ROTATION,
1321                            "rotation",
1322                            "The display rotation mode",
1323                            GST_VAAPI_TYPE_ROTATION,
1324                            DEFAULT_ROTATION,
1325                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1326 }
1327
1328 static void
1329 gst_vaapisink_init(GstVaapiSink *sink)
1330 {
1331     sink->caps           = NULL;
1332     sink->display        = NULL;
1333     sink->window         = NULL;
1334     sink->window_width   = 0;
1335     sink->window_height  = 0;
1336     sink->texture        = NULL;
1337     sink->video_buffer   = NULL;
1338     sink->video_width    = 0;
1339     sink->video_height   = 0;
1340     sink->video_par_n    = 1;
1341     sink->video_par_d    = 1;
1342     sink->foreign_window = FALSE;
1343     sink->fullscreen     = FALSE;
1344     sink->synchronous    = FALSE;
1345     sink->display_type   = DEFAULT_DISPLAY_TYPE;
1346     sink->rotation       = DEFAULT_ROTATION;
1347     sink->rotation_req   = DEFAULT_ROTATION;
1348     sink->use_reflection = FALSE;
1349     sink->use_overlay    = FALSE;
1350     sink->use_rotation   = FALSE;
1351 }