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     GST_VIDEO_CAPS_MAKE(GST_VIDEO_FORMATS_ALL) "; "
  88 #else
  89     "video/x-raw-yuv, "
  90     "width  = (int) [ 1, MAX ], "
  91     "height = (int) [ 1, MAX ]; "
  92 #endif
  93     GST_VAAPI_SURFACE_CAPS;
  94
  95 static GstStaticPadTemplate gst_vaapisink_sink_factory =
  96     GST_STATIC_PAD_TEMPLATE(
  97         "sink",
  98         GST_PAD_SINK,
  99         GST_PAD_ALWAYS,
 100         GST_STATIC_CAPS(gst_vaapisink_sink_caps_str));
 101
 102 /* GstImplementsInterface interface */
 103 #if !GST_CHECK_VERSION(1,0,0)
 104 static gboolean
 105 gst_vaapisink_implements_interface_supported(
 106     GstImplementsInterface *iface,
 107     GType                   type
 108 )
 109 {
 110     return (type == GST_TYPE_VIDEO_CONTEXT ||
 111             type == GST_TYPE_VIDEO_OVERLAY);
 112 }
 113
 114 static void
 115 gst_vaapisink_implements_iface_init(GstImplementsInterfaceClass *iface)
 116 {
 117     iface->supported = gst_vaapisink_implements_interface_supported;
 118 }
 119 #endif
 120
 121 /* GstVideoContext interface */
 122 static void
 123 gst_vaapisink_set_video_context(GstVideoContext *context, const gchar *type,
 124     const GValue *value)
 125 {
 126   GstVaapiSink *sink = GST_VAAPISINK (context);
 127   gst_vaapi_set_display (type, value, &sink->display);
 128 }
 129
 130 static void
 131 gst_vaapisink_video_context_iface_init(GstVideoContextInterface *iface)
 132 {
 133     iface->set_context = gst_vaapisink_set_video_context;
 134 }
 135
 136 static void
 137 gst_vaapisink_video_overlay_iface_init(GstVideoOverlayInterface *iface);
 138
 139 G_DEFINE_TYPE_WITH_CODE(
 140     GstVaapiSink,
 141     gst_vaapisink,
 142     GST_TYPE_VIDEO_SINK,
 143 #if !GST_CHECK_VERSION(1,0,0)
 144     G_IMPLEMENT_INTERFACE(GST_TYPE_IMPLEMENTS_INTERFACE,
 145                           gst_vaapisink_implements_iface_init);
 146 #endif
 147     G_IMPLEMENT_INTERFACE(GST_TYPE_VIDEO_CONTEXT,
 148                           gst_vaapisink_video_context_iface_init);
 149     G_IMPLEMENT_INTERFACE(GST_TYPE_VIDEO_OVERLAY,
 150                           gst_vaapisink_video_overlay_iface_init))
 151
 152 enum {
 153     PROP_0,
 154
 155     PROP_DISPLAY_TYPE,
 156     PROP_FULLSCREEN,
 157     PROP_SYNCHRONOUS,
 158     PROP_USE_GLX,
 159     PROP_USE_REFLECTION,
 160     PROP_ROTATION,
 161     PROP_FORCE_ASPECT_RATIO,
 162 };
 163
 164 #define DEFAULT_DISPLAY_TYPE            GST_VAAPI_DISPLAY_TYPE_ANY
 165 #define DEFAULT_ROTATION                GST_VAAPI_ROTATION_0
 166
 167 /* GstVideoOverlay interface */
 168
 169 #if USE_X11
 170 static gboolean
 171 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id);
 172 #endif
 173
 174 static GstFlowReturn
 175 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer);
 176
 177 static void
 178 gst_vaapisink_video_overlay_set_window_handle(GstVideoOverlay *overlay, guintptr window)
 179 {
 180     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 181
 182     /* Disable GLX rendering when vaapisink is using a foreign X
 183        window. It's pretty much useless */
 184     if (sink->display_type == GST_VAAPI_DISPLAY_TYPE_GLX)
 185         sink->display_type = GST_VAAPI_DISPLAY_TYPE_X11;
 186
 187     sink->foreign_window = TRUE;
 188
 189     switch (sink->display_type) {
 190 #if USE_X11
 191     case GST_VAAPI_DISPLAY_TYPE_X11:
 192         gst_vaapisink_ensure_window_xid(sink, window);
 193         break;
 194 #endif
 195     default:
 196         break;
 197     }
 198 }
 199
 200 static void
 201 gst_vaapisink_video_overlay_set_render_rectangle(
 202     GstVideoOverlay *overlay,
 203     gint         x,
 204     gint         y,
 205     gint         width,
 206     gint         height
 207 )
 208 {
 209     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 210     GstVaapiRectangle * const display_rect = &sink->display_rect;
 211
 212     display_rect->x      = x;
 213     display_rect->y      = y;
 214     display_rect->width  = width;
 215     display_rect->height = height;
 216
 217     GST_DEBUG("render rect (%d,%d):%ux%u",
 218               display_rect->x, display_rect->y,
 219               display_rect->width, display_rect->height);
 220 }
 221
 222 static void
 223 gst_vaapisink_video_overlay_expose(GstVideoOverlay *overlay)
 224 {
 225     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 226     GstBaseSink * const base_sink = GST_BASE_SINK(overlay);
 227     GstBuffer *buffer;
 228
 229     if (sink->use_overlay)
 230         buffer = sink->video_buffer ? gst_buffer_ref(sink->video_buffer) : NULL;
 231     else {
 232 #if GST_CHECK_VERSION(1,0,0)
 233         GstSample * const sample = gst_base_sink_get_last_sample(base_sink);
 234         if (!sample)
 235             return;
 236         buffer = gst_buffer_ref(gst_sample_get_buffer(sample));
 237         gst_sample_unref(sample);
 238 #else
 239         buffer = gst_base_sink_get_last_buffer(base_sink);
 240 #endif
 241     }
 242     if (buffer) {
 243         gst_vaapisink_show_frame(base_sink, buffer);
 244         gst_buffer_unref(buffer);
 245     }
 246 }
 247
 248 static void
 249 gst_vaapisink_video_overlay_iface_init(GstVideoOverlayInterface *iface)
 250 {
 251     iface->set_window_handle    = gst_vaapisink_video_overlay_set_window_handle;
 252     iface->set_render_rectangle = gst_vaapisink_video_overlay_set_render_rectangle;
 253     iface->expose               = gst_vaapisink_video_overlay_expose;
 254 }
 255
 256 static void
 257 gst_vaapisink_destroy(GstVaapiSink *sink)
 258 {
 259     gst_buffer_replace(&sink->video_buffer, NULL);
 260 #if USE_GLX
 261     gst_vaapi_texture_replace(&sink->texture, NULL);
 262 #endif
 263     gst_vaapi_display_replace(&sink->display, NULL);
 264     g_clear_object(&sink->uploader);
 265
 266     gst_caps_replace(&sink->caps, NULL);
 267 }
 268
 269 #if USE_X11
 270 /* Checks whether a ConfigureNotify event is in the queue */
 271 typedef struct _ConfigureNotifyEventPendingArgs ConfigureNotifyEventPendingArgs;
 272 struct _ConfigureNotifyEventPendingArgs {
 273     Window      window;
 274     guint       width;
 275     guint       height;
 276     gboolean    match;
 277 };
 278
 279 static Bool
 280 configure_notify_event_pending_cb(Display *dpy, XEvent *xev, XPointer arg)
 281 {
 282     ConfigureNotifyEventPendingArgs * const args =
 283         (ConfigureNotifyEventPendingArgs *)arg;
 284
 285     if (xev->type == ConfigureNotify &&
 286         xev->xconfigure.window == args->window &&
 287         xev->xconfigure.width  == args->width  &&
 288         xev->xconfigure.height == args->height)
 289         args->match = TRUE;
 290
 291     /* XXX: this is a hack to traverse the whole queue because we
 292        can't use XPeekIfEvent() since it could block */
 293     return False;
 294 }
 295
 296 static gboolean
 297 configure_notify_event_pending(
 298     GstVaapiSink *sink,
 299     Window        window,
 300     guint         width,
 301     guint         height
 302 )
 303 {
 304     ConfigureNotifyEventPendingArgs args;
 305     XEvent xev;
 306
 307     args.window = window;
 308     args.width  = width;
 309     args.height = height;
 310     args.match  = FALSE;
 311
 312     /* XXX: don't use XPeekIfEvent() because it might block */
 313     XCheckIfEvent(
 314         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 315         &xev,
 316         configure_notify_event_pending_cb, (XPointer)&args
 317     );
 318     return args.match;
 319 }
 320 #endif
 321
 322 static const gchar *
 323 get_display_type_name(GstVaapiDisplayType display_type)
 324 {
 325     gpointer const klass = g_type_class_peek(GST_VAAPI_TYPE_DISPLAY_TYPE);
 326     GEnumValue * const e = g_enum_get_value(klass, display_type);
 327
 328     if (e)
 329         return e->value_name;
 330     return "<unknown-type>";
 331 }
 332
 333 static inline gboolean
 334 gst_vaapisink_ensure_display(GstVaapiSink *sink)
 335 {
 336     GstVaapiDisplayType display_type;
 337     GstVaapiRenderMode render_mode;
 338     const gboolean had_display = sink->display != NULL;
 339
 340     if (!gst_vaapi_ensure_display(sink, sink->display_type, &sink->display))
 341         return FALSE;
 342
 343     display_type = gst_vaapi_display_get_display_type(sink->display);
 344     if (display_type != sink->display_type || (!had_display && sink->display)) {
 345         GST_INFO("created %s %p", get_display_type_name(display_type),
 346             sink->display);
 347         sink->display_type = display_type;
 348
 349         sink->use_overlay =
 350             gst_vaapi_display_get_render_mode(sink->display, &render_mode) &&
 351             render_mode == GST_VAAPI_RENDER_MODE_OVERLAY;
 352         GST_DEBUG("use %s rendering mode", sink->use_overlay ? "overlay" : "texture");
 353
 354         sink->use_rotation = gst_vaapi_display_has_property(
 355             sink->display, GST_VAAPI_DISPLAY_PROP_ROTATION);
 356     }
 357     return TRUE;
 358 }
 359
 360 static gboolean
 361 gst_vaapisink_ensure_uploader(GstVaapiSink *sink)
 362 {
 363     if (!gst_vaapisink_ensure_display(sink))
 364         return FALSE;
 365
 366     if (!sink->uploader) {
 367         sink->uploader = gst_vaapi_uploader_new(sink->display);
 368         if (!sink->uploader)
 369             return FALSE;
 370     }
 371     return TRUE;
 372 }
 373
 374 static gboolean
 375 gst_vaapisink_ensure_render_rect(GstVaapiSink *sink, guint width, guint height)
 376 {
 377     GstVaapiRectangle * const display_rect = &sink->display_rect;
 378     guint num, den, display_par_n, display_par_d;
 379     gboolean success;
 380
 381     /* Return success if caps are not set yet */
 382     if (!sink->caps)
 383         return TRUE;
 384
 385     if (!sink->keep_aspect) {
 386         display_rect->width = width;
 387         display_rect->height = height;
 388         display_rect->x = 0;
 389         display_rect->y = 0;
 390
 391         GST_DEBUG("force-aspect-ratio is false; distorting while scaling video");
 392         GST_DEBUG("render rect (%d,%d):%ux%u",
 393                   display_rect->x, display_rect->y,
 394                   display_rect->width, display_rect->height);
 395         return TRUE;
 396     }
 397
 398     GST_DEBUG("ensure render rect within %ux%u bounds", width, height);
 399
 400     gst_vaapi_display_get_pixel_aspect_ratio(
 401         sink->display,
 402         &display_par_n, &display_par_d
 403     );
 404     GST_DEBUG("display pixel-aspect-ratio %d/%d",
 405               display_par_n, display_par_d);
 406
 407     success = gst_video_calculate_display_ratio(
 408         &num, &den,
 409         sink->video_width, sink->video_height,
 410         sink->video_par_n, sink->video_par_d,
 411         display_par_n, display_par_d
 412     );
 413     if (!success)
 414         return FALSE;
 415     GST_DEBUG("video size %dx%d, calculated ratio %d/%d",
 416               sink->video_width, sink->video_height, num, den);
 417
 418     display_rect->width = gst_util_uint64_scale_int(height, num, den);
 419     if (display_rect->width <= width) {
 420         GST_DEBUG("keeping window height");
 421         display_rect->height = height;
 422     }
 423     else {
 424         GST_DEBUG("keeping window width");
 425         display_rect->width  = width;
 426         display_rect->height =
 427             gst_util_uint64_scale_int(width, den, num);
 428     }
 429     GST_DEBUG("scaling video to %ux%u", display_rect->width, display_rect->height);
 430
 431     g_assert(display_rect->width  <= width);
 432     g_assert(display_rect->height <= height);
 433
 434     display_rect->x = (width  - display_rect->width)  / 2;
 435     display_rect->y = (height - display_rect->height) / 2;
 436
 437     GST_DEBUG("render rect (%d,%d):%ux%u",
 438               display_rect->x, display_rect->y,
 439               display_rect->width, display_rect->height);
 440     return TRUE;
 441 }
 442
 443 static void
 444 gst_vaapisink_ensure_window_size(GstVaapiSink *sink, guint *pwidth, guint *pheight)
 445 {
 446     GstVideoRectangle src_rect, dst_rect, out_rect;
 447     guint num, den, display_width, display_height, display_par_n, display_par_d;
 448     gboolean success, scale;
 449
 450     if (sink->foreign_window) {
 451         *pwidth  = sink->window_width;
 452         *pheight = sink->window_height;
 453         return;
 454     }
 455
 456     gst_vaapi_display_get_size(sink->display, &display_width, &display_height);
 457     if (sink->fullscreen) {
 458         *pwidth  = display_width;
 459         *pheight = display_height;
 460         return;
 461     }
 462
 463     gst_vaapi_display_get_pixel_aspect_ratio(
 464         sink->display,
 465         &display_par_n, &display_par_d
 466     );
 467
 468     success = gst_video_calculate_display_ratio(
 469         &num, &den,
 470         sink->video_width, sink->video_height,
 471         sink->video_par_n, sink->video_par_d,
 472         display_par_n, display_par_d
 473     );
 474     if (!success) {
 475         num = sink->video_par_n;
 476         den = sink->video_par_d;
 477     }
 478
 479     src_rect.x = 0;
 480     src_rect.y = 0;
 481     src_rect.w = gst_util_uint64_scale_int(sink->video_height, num, den);
 482     src_rect.h = sink->video_height;
 483     dst_rect.x = 0;
 484     dst_rect.y = 0;
 485     dst_rect.w = display_width;
 486     dst_rect.h = display_height;
 487     scale      = (src_rect.w > dst_rect.w || src_rect.h > dst_rect.h);
 488     gst_video_sink_center_rect(src_rect, dst_rect, &out_rect, scale);
 489     *pwidth    = out_rect.w;
 490     *pheight   = out_rect.h;
 491 }
 492
 493 static inline gboolean
 494 gst_vaapisink_ensure_window(GstVaapiSink *sink, guint width, guint height)
 495 {
 496     GstVaapiDisplay * const display = sink->display;
 497
 498     if (!sink->window) {
 499         switch (sink->display_type) {
 500 #if USE_GLX
 501         case GST_VAAPI_DISPLAY_TYPE_GLX:
 502             sink->window = gst_vaapi_window_glx_new(display, width, height);
 503             goto notify_video_overlay_interface;
 504 #endif
 505 #if USE_X11
 506         case GST_VAAPI_DISPLAY_TYPE_X11:
 507             sink->window = gst_vaapi_window_x11_new(display, width, height);
 508         notify_video_overlay_interface:
 509             if (!sink->window)
 510                 break;
 511             gst_video_overlay_got_window_handle(
 512                 GST_VIDEO_OVERLAY(sink),
 513                 gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window))
 514             );
 515             break;
 516 #endif
 517 #if USE_WAYLAND
 518         case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
 519             sink->window = gst_vaapi_window_wayland_new(display, width, height);
 520             break;
 521 #endif
 522         default:
 523             GST_ERROR("unsupported display type %d", sink->display_type);
 524             return FALSE;
 525         }
 526     }
 527     return sink->window != NULL;
 528 }
 529
 530 #if USE_X11
 531 static gboolean
 532 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id)
 533 {
 534     Window rootwin;
 535     unsigned int width, height, border_width, depth;
 536     int x, y;
 537     XID xid = window_id;
 538
 539     if (!gst_vaapisink_ensure_display(sink))
 540         return FALSE;
 541
 542     gst_vaapi_display_lock(sink->display);
 543     XGetGeometry(
 544         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 545         xid,
 546         &rootwin,
 547         &x, &y, &width, &height, &border_width, &depth
 548     );
 549     gst_vaapi_display_unlock(sink->display);
 550
 551     if ((width != sink->window_width || height != sink->window_height) &&
 552         !configure_notify_event_pending(sink, xid, width, height)) {
 553         if (!gst_vaapisink_ensure_render_rect(sink, width, height))
 554             return FALSE;
 555         sink->window_width  = width;
 556         sink->window_height = height;
 557     }
 558
 559     if (sink->window &&
 560         gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window)) == xid)
 561         return TRUE;
 562
 563     gst_vaapi_window_replace(&sink->window, NULL);
 564
 565     switch (sink->display_type) {
 566 #if USE_GLX
 567     case GST_VAAPI_DISPLAY_TYPE_GLX:
 568         sink->window = gst_vaapi_window_glx_new_with_xid(sink->display, xid);
 569         break;
 570 #endif
 571     case GST_VAAPI_DISPLAY_TYPE_X11:
 572         sink->window = gst_vaapi_window_x11_new_with_xid(sink->display, xid);
 573         break;
 574     default:
 575         GST_ERROR("unsupported display type %d", sink->display_type);
 576         return FALSE;
 577     }
 578     return sink->window != NULL;
 579 }
 580 #endif
 581
 582 static gboolean
 583 gst_vaapisink_ensure_rotation(GstVaapiSink *sink, gboolean recalc_display_rect)
 584 {
 585     gboolean success = FALSE;
 586
 587     g_return_val_if_fail(sink->display, FALSE);
 588
 589     if (sink->rotation == sink->rotation_req)
 590         return TRUE;
 591
 592     if (!sink->use_rotation) {
 593         GST_WARNING("VA display does not support rotation");
 594         goto end;
 595     }
 596
 597     gst_vaapi_display_lock(sink->display);
 598     success = gst_vaapi_display_set_rotation(sink->display, sink->rotation_req);
 599     gst_vaapi_display_unlock(sink->display);
 600     if (!success) {
 601         GST_ERROR("failed to change VA display rotation mode");
 602         goto end;
 603     }
 604
 605     if (((sink->rotation + sink->rotation_req) % 180) == 90) {
 606         /* Orientation changed */
 607         G_PRIMITIVE_SWAP(guint, sink->video_width, sink->video_height);
 608         G_PRIMITIVE_SWAP(gint, sink->video_par_n, sink->video_par_d);
 609     }
 610
 611     if (recalc_display_rect && !sink->foreign_window)
 612         gst_vaapisink_ensure_render_rect(sink, sink->window_width,
 613             sink->window_height);
 614     success = TRUE;
 615
 616 end:
 617     sink->rotation = sink->rotation_req;
 618     return success;
 619 }
 620
 621 static gboolean
 622 gst_vaapisink_ensure_video_buffer_pool(GstVaapiSink *sink, GstCaps *caps)
 623 {
 624 #if GST_CHECK_VERSION(1,0,0)
 625     GstBufferPool *pool;
 626     GstCaps *pool_caps;
 627     GstStructure *config;
 628     GstVideoInfo vi;
 629     gboolean need_pool;
 630
 631     if (!gst_vaapisink_ensure_display(sink))
 632         return FALSE;
 633
 634     if (sink->video_buffer_pool) {
 635         config = gst_buffer_pool_get_config(sink->video_buffer_pool);
 636         gst_buffer_pool_config_get_params(config, &pool_caps, NULL, NULL, NULL);
 637         need_pool = !gst_caps_is_equal(caps, pool_caps);
 638         gst_structure_free(config);
 639         if (!need_pool)
 640             return TRUE;
 641         g_clear_object(&sink->video_buffer_pool);
 642         sink->video_buffer_size = 0;
 643     }
 644
 645     pool = gst_vaapi_video_buffer_pool_new(sink->display);
 646     if (!pool)
 647         goto error_create_pool;
 648
 649     gst_video_info_init(&vi);
 650     gst_video_info_from_caps(&vi, caps);
 651     if (GST_VIDEO_INFO_FORMAT(&vi) == GST_VIDEO_FORMAT_ENCODED) {
 652         GST_DEBUG("assume video buffer pool format is NV12");
 653         gst_video_info_set_format(&vi, GST_VIDEO_FORMAT_NV12,
 654             GST_VIDEO_INFO_WIDTH(&vi), GST_VIDEO_INFO_HEIGHT(&vi));
 655     }
 656     sink->video_buffer_size = vi.size;
 657
 658     config = gst_buffer_pool_get_config(pool);
 659     gst_buffer_pool_config_set_params(config, caps, sink->video_buffer_size,
 660         0, 0);
 661     gst_buffer_pool_config_add_option(config,
 662         GST_BUFFER_POOL_OPTION_VAAPI_VIDEO_META);
 663     if (!gst_buffer_pool_set_config(pool, config))
 664         goto error_pool_config;
 665     sink->video_buffer_pool = pool;
 666     return TRUE;
 667
 668     /* ERRORS */
 669 error_create_pool:
 670     {
 671         GST_ERROR("failed to create buffer pool");
 672         return FALSE;
 673     }
 674 error_pool_config:
 675     {
 676         GST_ERROR("failed to reset buffer pool config");
 677         gst_object_unref(pool);
 678         return FALSE;
 679     }
 680 #else
 681     return TRUE;
 682 #endif
 683 }
 684
 685 static gboolean
 686 gst_vaapisink_start(GstBaseSink *base_sink)
 687 {
 688     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 689
 690     return gst_vaapisink_ensure_uploader(sink);
 691 }
 692
 693 static gboolean
 694 gst_vaapisink_stop(GstBaseSink *base_sink)
 695 {
 696     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 697
 698     gst_buffer_replace(&sink->video_buffer, NULL);
 699 #if GST_CHECK_VERSION(1,0,0)
 700     g_clear_object(&sink->video_buffer_pool);
 701 #endif
 702     gst_vaapi_window_replace(&sink->window, NULL);
 703     gst_vaapi_display_replace(&sink->display, NULL);
 704     g_clear_object(&sink->uploader);
 705
 706     return TRUE;
 707 }
 708
 709 static GstCaps *
 710 gst_vaapisink_get_caps_impl(GstBaseSink *base_sink)
 711 {
 712     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 713     GstCaps *out_caps, *yuv_caps;
 714
 715     out_caps = gst_caps_from_string(GST_VAAPI_SURFACE_CAPS);
 716     if (!out_caps)
 717         return NULL;
 718
 719     if (gst_vaapisink_ensure_uploader(sink)) {
 720         yuv_caps = gst_vaapi_uploader_get_caps(sink->uploader);
 721         if (yuv_caps)
 722             gst_caps_append(out_caps, gst_caps_copy(yuv_caps));
 723     }
 724     return out_caps;
 725 }
 726
 727 #if GST_CHECK_VERSION(1,0,0)
 728 static inline GstCaps *
 729 gst_vaapisink_get_caps(GstBaseSink *base_sink, GstCaps *filter)
 730 {
 731     GstCaps *caps, *out_caps;
 732
 733     caps = gst_vaapisink_get_caps_impl(base_sink);
 734     if (caps && filter) {
 735         out_caps = gst_caps_intersect_full(caps, filter,
 736             GST_CAPS_INTERSECT_FIRST);
 737         gst_caps_unref(caps);
 738     }
 739     else
 740         out_caps = caps;
 741     return out_caps;
 742 }
 743 #else
 744 #define gst_vaapisink_get_caps gst_vaapisink_get_caps_impl
 745 #endif
 746
 747 static gboolean
 748 gst_vaapisink_set_caps(GstBaseSink *base_sink, GstCaps *caps)
 749 {
 750     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 751     GstVideoInfo vi;
 752     guint win_width, win_height;
 753
 754 #if USE_DRM
 755     if (sink->display_type == GST_VAAPI_DISPLAY_TYPE_DRM)
 756         return TRUE;
 757 #endif
 758
 759     if (!gst_vaapisink_ensure_video_buffer_pool(sink, caps))
 760         return FALSE;
 761
 762     if (!gst_video_info_from_caps(&vi, caps))
 763         return FALSE;
 764     sink->use_video_raw = GST_VIDEO_INFO_IS_YUV(&vi);
 765     sink->video_width   = GST_VIDEO_INFO_WIDTH(&vi);
 766     sink->video_height  = GST_VIDEO_INFO_HEIGHT(&vi);
 767     sink->video_par_n   = GST_VIDEO_INFO_PAR_N(&vi);
 768     sink->video_par_d   = GST_VIDEO_INFO_PAR_D(&vi);
 769     GST_DEBUG("video pixel-aspect-ratio %d/%d",
 770               sink->video_par_n, sink->video_par_d);
 771
 772     gst_caps_replace(&sink->caps, caps);
 773
 774     if (!gst_vaapisink_ensure_display(sink))
 775         return FALSE;
 776
 777     gst_vaapisink_ensure_rotation(sink, FALSE);
 778
 779     gst_vaapisink_ensure_window_size(sink, &win_width, &win_height);
 780     if (sink->window) {
 781         if (!sink->foreign_window || sink->fullscreen)
 782             gst_vaapi_window_set_size(sink->window, win_width, win_height);
 783     }
 784     else {
 785         gst_vaapi_display_lock(sink->display);
 786         gst_video_overlay_prepare_window_handle(GST_VIDEO_OVERLAY(sink));
 787         gst_vaapi_display_unlock(sink->display);
 788         if (sink->window)
 789             return TRUE;
 790         if (!gst_vaapisink_ensure_window(sink, win_width, win_height))
 791             return FALSE;
 792         gst_vaapi_window_set_fullscreen(sink->window, sink->fullscreen);
 793         gst_vaapi_window_show(sink->window);
 794         gst_vaapi_window_get_size(sink->window, &win_width, &win_height);
 795     }
 796     sink->window_width  = win_width;
 797     sink->window_height = win_height;
 798     GST_DEBUG("window size %ux%u", win_width, win_height);
 799
 800     return gst_vaapisink_ensure_render_rect(sink, win_width, win_height);
 801 }
 802
 803 #if USE_GLX
 804 static void
 805 render_background(GstVaapiSink *sink)
 806 {
 807     /* Original code from Mirco Muller (MacSlow):
 808        <http://cgit.freedesktop.org/~macslow/gl-gst-player/> */
 809     GLfloat fStartX = 0.0f;
 810     GLfloat fStartY = 0.0f;
 811     GLfloat fWidth  = (GLfloat)sink->window_width;
 812     GLfloat fHeight = (GLfloat)sink->window_height;
 813
 814     glClear(GL_COLOR_BUFFER_BIT);
 815     glBegin(GL_QUADS);
 816     {
 817         /* top third, darker grey to white */
 818         glColor3f(0.85f, 0.85f, 0.85f);
 819         glVertex3f(fStartX, fStartY, 0.0f);
 820         glColor3f(0.85f, 0.85f, 0.85f);
 821         glVertex3f(fStartX + fWidth, fStartY, 0.0f);
 822         glColor3f(1.0f, 1.0f, 1.0f);
 823         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 824         glColor3f(1.0f, 1.0f, 1.0f);
 825         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 826
 827         /* middle third, just plain white */
 828         glColor3f(1.0f, 1.0f, 1.0f);
 829         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 830         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 831         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 832         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 833
 834         /* bottom third, white to lighter grey */
 835         glColor3f(1.0f, 1.0f, 1.0f);
 836         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 837         glColor3f(1.0f, 1.0f, 1.0f);
 838         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 839         glColor3f(0.62f, 0.66f, 0.69f);
 840         glVertex3f(fStartX + fWidth, fStartY + fHeight, 0.0f);
 841         glColor3f(0.62f, 0.66f, 0.69f);
 842         glVertex3f(fStartX, fStartY + fHeight, 0.0f);
 843     }
 844     glEnd();
 845 }
 846
 847 static void
 848 render_frame(GstVaapiSink *sink, GstVaapiSurface *surface,
 849     const GstVaapiRectangle *surface_rect)
 850 {
 851     const guint x1 = sink->display_rect.x;
 852     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 853     const guint y1 = sink->display_rect.y;
 854     const guint y2 = sink->display_rect.y + sink->display_rect.height;
 855     gfloat tx1, tx2, ty1, ty2;
 856     guint width, height;
 857
 858     if (surface_rect) {
 859         gst_vaapi_surface_get_size(surface, &width, &height);
 860         tx1 = (gfloat)surface_rect->x / width;
 861         ty1 = (gfloat)surface_rect->y / height;
 862         tx2 = (gfloat)(surface_rect->x + surface_rect->width) / width;
 863         ty2 = (gfloat)(surface_rect->y + surface_rect->height) / height;
 864     }
 865     else {
 866         tx1 = 0.0f;
 867         ty1 = 0.0f;
 868         tx2 = 1.0f;
 869         ty2 = 1.0f;
 870     }
 871
 872     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 873     glBegin(GL_QUADS);
 874     {
 875         glTexCoord2f(tx1, ty1); glVertex2i(x1, y1);
 876         glTexCoord2f(tx1, ty2); glVertex2i(x1, y2);
 877         glTexCoord2f(tx2, ty2); glVertex2i(x2, y2);
 878         glTexCoord2f(tx2, ty1); glVertex2i(x2, y1);
 879     }
 880     glEnd();
 881 }
 882
 883 static void
 884 render_reflection(GstVaapiSink *sink)
 885 {
 886     const guint x1 = sink->display_rect.x;
 887     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 888     const guint y1 = sink->display_rect.y;
 889     const guint rh = sink->display_rect.height / 5;
 890     GLfloat     ry = 1.0f - (GLfloat)rh / (GLfloat)sink->display_rect.height;
 891
 892     glBegin(GL_QUADS);
 893     {
 894         glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 895         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y1);
 896         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y1);
 897
 898         glColor4f(1.0f, 1.0f, 1.0f, 0.0f);
 899         glTexCoord2f(1.0f, ry); glVertex2i(x2, y1 + rh);
 900         glTexCoord2f(0.0f, ry); glVertex2i(x1, y1 + rh);
 901     }
 902     glEnd();
 903 }
 904
 905 static gboolean
 906 gst_vaapisink_ensure_texture(GstVaapiSink *sink, GstVaapiSurface *surface)
 907 {
 908     GstVideoRectangle tex_rect, dis_rect, out_rect;
 909     guint width, height;
 910
 911     if (sink->texture)
 912         return TRUE;
 913
 914     gst_vaapi_surface_get_size(surface, &width, &height);
 915     tex_rect.x = 0;
 916     tex_rect.y = 0;
 917     tex_rect.w = width;
 918     tex_rect.h = height;
 919
 920     gst_vaapi_display_get_size(sink->display, &width, &height);
 921     dis_rect.x = 0;
 922     dis_rect.y = 0;
 923     dis_rect.w = width;
 924     dis_rect.h = height;
 925
 926     gst_video_sink_center_rect(tex_rect, dis_rect, &out_rect, TRUE);
 927
 928     /* XXX: use surface size for now since some VA drivers have issues
 929        with downscaling to the provided texture size. i.e. we should be
 930        using the resulting out_rect size, which preserves the aspect
 931        ratio of the surface */
 932     width = tex_rect.w;
 933     height = tex_rect.h;
 934     GST_INFO("texture size %ux%u", width, height);
 935
 936     sink->texture = gst_vaapi_texture_new(sink->display,
 937         GL_TEXTURE_2D, GL_BGRA, width, height);
 938     return sink->texture != NULL;
 939 }
 940
 941 static gboolean
 942 gst_vaapisink_show_frame_glx(
 943     GstVaapiSink               *sink,
 944     GstVaapiSurface            *surface,
 945     const GstVaapiRectangle    *surface_rect,
 946     guint                       flags
 947 )
 948 {
 949     GstVaapiWindowGLX * const window = GST_VAAPI_WINDOW_GLX(sink->window);
 950     GLenum target;
 951     GLuint texture;
 952
 953     gst_vaapi_window_glx_make_current(window);
 954     if (!gst_vaapisink_ensure_texture(sink, surface))
 955         goto error_create_texture;
 956     if (!gst_vaapi_texture_put_surface(sink->texture, surface, flags))
 957         goto error_transfer_surface;
 958
 959     target  = gst_vaapi_texture_get_target(sink->texture);
 960     texture = gst_vaapi_texture_get_id(sink->texture);
 961     if (target != GL_TEXTURE_2D || !texture)
 962         return FALSE;
 963
 964     if (sink->use_reflection)
 965         render_background(sink);
 966
 967     glEnable(target);
 968     glBindTexture(target, texture);
 969     {
 970         if (sink->use_reflection) {
 971             glPushMatrix();
 972             glRotatef(20.0f, 0.0f, 1.0f, 0.0f);
 973             glTranslatef(50.0f, 0.0f, 0.0f);
 974         }
 975         render_frame(sink, surface, surface_rect);
 976         if (sink->use_reflection) {
 977             glPushMatrix();
 978             glTranslatef(0.0, (GLfloat)sink->display_rect.height + 5.0f, 0.0f);
 979             render_reflection(sink);
 980             glPopMatrix();
 981             glPopMatrix();
 982         }
 983     }
 984     glBindTexture(target, 0);
 985     glDisable(target);
 986     gst_vaapi_window_glx_swap_buffers(window);
 987     return TRUE;
 988
 989     /* ERRORS */
 990 error_create_texture:
 991     {
 992         GST_DEBUG("could not create VA/GLX texture");
 993         return FALSE;
 994     }
 995 error_transfer_surface:
 996     {
 997         GST_DEBUG("could not transfer VA surface to texture");
 998         return FALSE;
 999     }
1000 }
1001 #endif
1002
1003 static inline gboolean
1004 gst_vaapisink_put_surface(
1005     GstVaapiSink               *sink,
1006     GstVaapiSurface            *surface,
1007     const GstVaapiRectangle    *surface_rect,
1008     guint                       flags
1009 )
1010 {
1011     if (!gst_vaapi_window_put_surface(sink->window, surface,
1012                 surface_rect, &sink->display_rect, flags)) {
1013         GST_DEBUG("could not render VA surface");
1014         return FALSE;
1015     }
1016     return TRUE;
1017 }
1018
1019 static GstFlowReturn
1020 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *src_buffer)
1021 {
1022     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1023     GstVaapiVideoMeta *meta;
1024     GstVaapiSurface *surface;
1025     GstBuffer *buffer;
1026     guint flags;
1027     gboolean success;
1028     GstVaapiRectangle *surface_rect = NULL;
1029 #if GST_CHECK_VERSION(1,0,0)
1030     GstVaapiRectangle tmp_rect;
1031 #endif
1032
1033     meta = gst_buffer_get_vaapi_video_meta(src_buffer);
1034 #if GST_CHECK_VERSION(1,0,0)
1035     if (!meta)
1036         return GST_FLOW_EOS;
1037     buffer = gst_buffer_ref(src_buffer);
1038
1039     GstVideoCropMeta * const crop_meta =
1040         gst_buffer_get_video_crop_meta(buffer);
1041     if (crop_meta) {
1042         surface_rect = &tmp_rect;
1043         surface_rect->x = crop_meta->x;
1044         surface_rect->y = crop_meta->y;
1045         surface_rect->width = crop_meta->width;
1046         surface_rect->height = crop_meta->height;
1047     }
1048 #else
1049     if (meta)
1050         buffer = gst_buffer_ref(src_buffer);
1051     else if (sink->use_video_raw) {
1052         buffer = gst_vaapi_uploader_get_buffer(sink->uploader);
1053         if (!buffer)
1054             return GST_FLOW_EOS;
1055         meta = gst_buffer_get_vaapi_video_meta(buffer);
1056         if (!meta)
1057             goto error;
1058     }
1059     else
1060         return GST_FLOW_EOS;
1061
1062     if (sink->use_video_raw &&
1063         !gst_vaapi_uploader_process(sink->uploader, src_buffer, buffer)) {
1064         GST_WARNING("failed to process raw YUV buffer");
1065         goto error;
1066     }
1067 #endif
1068
1069     if (sink->display != gst_vaapi_video_meta_get_display(meta))
1070         gst_vaapi_display_replace(&sink->display,
1071             gst_vaapi_video_meta_get_display(meta));
1072
1073     if (!sink->window)
1074         goto error;
1075
1076     gst_vaapisink_ensure_rotation(sink, TRUE);
1077
1078     surface = gst_vaapi_video_meta_get_surface(meta);
1079     if (!surface)
1080         goto error;
1081
1082     GST_DEBUG("render surface %" GST_VAAPI_ID_FORMAT,
1083               GST_VAAPI_ID_ARGS(gst_vaapi_surface_get_id(surface)));
1084
1085     if (!surface_rect)
1086         surface_rect = (GstVaapiRectangle *)
1087             gst_vaapi_video_meta_get_render_rect(meta);
1088
1089     if (surface_rect)
1090         GST_DEBUG("render rect (%d,%d), size %ux%u",
1091                   surface_rect->x, surface_rect->y,
1092                   surface_rect->width, surface_rect->height);
1093
1094     flags = gst_vaapi_video_meta_get_render_flags(meta);
1095
1096     if (!gst_vaapi_apply_composition(surface, src_buffer))
1097         GST_WARNING("could not update subtitles");
1098
1099     switch (sink->display_type) {
1100 #if USE_DRM
1101     case GST_VAAPI_DISPLAY_TYPE_DRM:
1102         success = TRUE;
1103         break;
1104 #endif
1105 #if USE_GLX
1106     case GST_VAAPI_DISPLAY_TYPE_GLX:
1107         if (!sink->use_glx)
1108             goto put_surface_x11;
1109         success = gst_vaapisink_show_frame_glx(sink, surface, surface_rect,
1110             flags);
1111         break;
1112 #endif
1113 #if USE_X11
1114     case GST_VAAPI_DISPLAY_TYPE_X11:
1115     put_surface_x11:
1116         success = gst_vaapisink_put_surface(sink, surface, surface_rect, flags);
1117         break;
1118 #endif
1119 #if USE_WAYLAND
1120     case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
1121         success = gst_vaapisink_put_surface(sink, surface, surface_rect, flags);
1122         break;
1123 #endif
1124     default:
1125         GST_ERROR("unsupported display type %d", sink->display_type);
1126         success = FALSE;
1127         break;
1128     }
1129     if (!success)
1130         goto error;
1131
1132     /* Retain VA surface until the next one is displayed */
1133     if (sink->use_overlay)
1134         gst_buffer_replace(&sink->video_buffer, buffer);
1135     gst_buffer_unref(buffer);
1136     return GST_FLOW_OK;
1137
1138 error:
1139     gst_buffer_unref(buffer);
1140     return GST_FLOW_EOS;
1141 }
1142
1143 #if GST_CHECK_VERSION(1,0,0)
1144 static gboolean
1145 gst_vaapisink_propose_allocation(GstBaseSink *base_sink, GstQuery *query)
1146 {
1147     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1148     GstCaps *caps = NULL;
1149     gboolean need_pool;
1150
1151     gst_query_parse_allocation(query, &caps, &need_pool);
1152
1153     if (need_pool) {
1154         if (!caps)
1155             goto error_no_caps;
1156         if (!gst_vaapisink_ensure_video_buffer_pool(sink, caps))
1157             return FALSE;
1158         gst_query_add_allocation_pool(query, sink->video_buffer_pool,
1159             sink->video_buffer_size, 0, 0);
1160     }
1161
1162     gst_query_add_allocation_meta(query,
1163         GST_VAAPI_VIDEO_META_API_TYPE, NULL);
1164     gst_query_add_allocation_meta(query,
1165         GST_VIDEO_META_API_TYPE, NULL);
1166     gst_query_add_allocation_meta(query,
1167         GST_VIDEO_CROP_META_API_TYPE, NULL);
1168     gst_query_add_allocation_meta(query,
1169         GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
1170     return TRUE;
1171
1172     /* ERRORS */
1173 error_no_caps:
1174     {
1175         GST_ERROR("no caps specified");
1176         return FALSE;
1177     }
1178 }
1179 #else
1180 static GstFlowReturn
1181 gst_vaapisink_buffer_alloc(
1182     GstBaseSink        *base_sink,
1183     guint64             offset,
1184     guint               size,
1185     GstCaps            *caps,
1186     GstBuffer         **pbuf
1187 )
1188 {
1189     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1190     GstVideoInfo vi;
1191     GstBuffer *buf;
1192
1193     *pbuf = NULL;
1194
1195     if (!sink->use_video_raw) {
1196         /* Note: this code path is rarely used but for raw YUV formats
1197            from custom pipeline. Otherwise, GstBaseSink::set_caps() is
1198            called first, and GstBaseSink::buffer_alloc() is not called
1199            in VA surface format mode */
1200         if (!gst_video_info_from_caps(&vi, caps))
1201             return GST_FLOW_NOT_SUPPORTED;
1202         if (!GST_VIDEO_INFO_IS_YUV(&vi))
1203             return GST_FLOW_OK;
1204     }
1205
1206     if (!gst_vaapi_uploader_ensure_display(sink->uploader, sink->display))
1207         return GST_FLOW_NOT_SUPPORTED;
1208     if (!gst_vaapi_uploader_ensure_caps(sink->uploader, caps, NULL))
1209         return GST_FLOW_NOT_SUPPORTED;
1210
1211     buf = gst_vaapi_uploader_get_buffer(sink->uploader);
1212     if (!buf) {
1213         GST_WARNING("failed to allocate resources for raw YUV buffer");
1214         return GST_FLOW_NOT_SUPPORTED;
1215     }
1216
1217     *pbuf = buf;
1218     return GST_FLOW_OK;
1219 }
1220 #endif
1221
1222 static gboolean
1223 gst_vaapisink_query(GstBaseSink *base_sink, GstQuery *query)
1224 {
1225     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1226
1227     if (gst_vaapi_reply_to_query(query, sink->display)) {
1228         GST_DEBUG("sharing display %p", sink->display);
1229         return TRUE;
1230     }
1231     return GST_BASE_SINK_CLASS(gst_vaapisink_parent_class)->query(base_sink,
1232         query);
1233 }
1234
1235 static void
1236 gst_vaapisink_finalize(GObject *object)
1237 {
1238     gst_vaapisink_destroy(GST_VAAPISINK(object));
1239
1240     G_OBJECT_CLASS(gst_vaapisink_parent_class)->finalize(object);
1241 }
1242
1243 static void
1244 gst_vaapisink_set_property(
1245     GObject      *object,
1246     guint         prop_id,
1247     const GValue *value,
1248     GParamSpec   *pspec
1249 )
1250 {
1251     GstVaapiSink * const sink = GST_VAAPISINK(object);
1252
1253     switch (prop_id) {
1254     case PROP_DISPLAY_TYPE:
1255         sink->display_type = g_value_get_enum(value);
1256         break;
1257     case PROP_FULLSCREEN:
1258         sink->fullscreen = g_value_get_boolean(value);
1259         break;
1260     case PROP_SYNCHRONOUS:
1261         sink->synchronous = g_value_get_boolean(value);
1262         break;
1263     case PROP_USE_GLX:
1264         sink->use_glx = g_value_get_boolean(value);
1265         break;
1266     case PROP_USE_REFLECTION:
1267         sink->use_reflection = g_value_get_boolean(value);
1268         break;
1269     case PROP_ROTATION:
1270         sink->rotation_req = g_value_get_enum(value);
1271         break;
1272     case PROP_FORCE_ASPECT_RATIO:
1273         sink->keep_aspect = g_value_get_boolean(value);
1274         break;
1275     default:
1276         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
1277         break;
1278     }
1279 }
1280
1281 static void
1282 gst_vaapisink_get_property(
1283     GObject    *object,
1284     guint       prop_id,
1285     GValue     *value,
1286     GParamSpec *pspec
1287 )
1288 {
1289     GstVaapiSink * const sink = GST_VAAPISINK(object);
1290
1291     switch (prop_id) {
1292     case PROP_DISPLAY_TYPE:
1293         g_value_set_enum(value, sink->display_type);
1294         break;
1295     case PROP_FULLSCREEN:
1296         g_value_set_boolean(value, sink->fullscreen);
1297         break;
1298     case PROP_SYNCHRONOUS:
1299         g_value_set_boolean(value, sink->synchronous);
1300         break;
1301     case PROP_USE_GLX:
1302         g_value_set_boolean(value, sink->use_glx);
1303         break;
1304     case PROP_USE_REFLECTION:
1305         g_value_set_boolean(value, sink->use_reflection);
1306         break;
1307     case PROP_ROTATION:
1308         g_value_set_enum(value, sink->rotation);
1309         break;
1310     case PROP_FORCE_ASPECT_RATIO:
1311         g_value_set_boolean(value, sink->keep_aspect);
1312         break;
1313     default:
1314         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
1315         break;
1316     }
1317 }
1318
1319 static void
1320 gst_vaapisink_class_init(GstVaapiSinkClass *klass)
1321 {
1322     GObjectClass * const     object_class   = G_OBJECT_CLASS(klass);
1323     GstElementClass * const  element_class  = GST_ELEMENT_CLASS(klass);
1324     GstBaseSinkClass * const basesink_class = GST_BASE_SINK_CLASS(klass);
1325     GstPadTemplate *pad_template;
1326
1327     GST_DEBUG_CATEGORY_INIT(gst_debug_vaapisink,
1328                             GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
1329
1330     object_class->finalize       = gst_vaapisink_finalize;
1331     object_class->set_property   = gst_vaapisink_set_property;
1332     object_class->get_property   = gst_vaapisink_get_property;
1333
1334     basesink_class->start        = gst_vaapisink_start;
1335     basesink_class->stop         = gst_vaapisink_stop;
1336     basesink_class->get_caps     = gst_vaapisink_get_caps;
1337     basesink_class->set_caps     = gst_vaapisink_set_caps;
1338     basesink_class->preroll      = gst_vaapisink_show_frame;
1339     basesink_class->render       = gst_vaapisink_show_frame;
1340     basesink_class->query        = gst_vaapisink_query;
1341 #if GST_CHECK_VERSION(1,0,0)
1342     basesink_class->propose_allocation = gst_vaapisink_propose_allocation;
1343 #else
1344     basesink_class->buffer_alloc = gst_vaapisink_buffer_alloc;
1345 #endif
1346
1347     gst_element_class_set_static_metadata(element_class,
1348         "VA-API sink",
1349         "Sink/Video",
1350         GST_PLUGIN_DESC,
1351         "Gwenole Beauchesne <gwenole.beauchesne@intel.com>");
1352
1353     pad_template = gst_static_pad_template_get(&gst_vaapisink_sink_factory);
1354     gst_element_class_add_pad_template(element_class, pad_template);
1355
1356     g_object_class_install_property
1357         (object_class,
1358          PROP_DISPLAY_TYPE,
1359          g_param_spec_enum("display",
1360                            "display type",
1361                            "display type to use",
1362                            GST_VAAPI_TYPE_DISPLAY_TYPE,
1363                            GST_VAAPI_DISPLAY_TYPE_ANY,
1364                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1365
1366 #if USE_GLX
1367     g_object_class_install_property
1368         (object_class,
1369          PROP_USE_GLX,
1370          g_param_spec_boolean("use-glx",
1371                               "OpenGL rendering",
1372                               "Enables OpenGL rendering",
1373                               FALSE,
1374                               G_PARAM_READWRITE));
1375
1376     g_object_class_install_property
1377         (object_class,
1378          PROP_USE_REFLECTION,
1379          g_param_spec_boolean("use-reflection",
1380                               "Reflection effect",
1381                               "Enables OpenGL reflection effect",
1382                               FALSE,
1383                               G_PARAM_READWRITE));
1384 #endif
1385
1386     g_object_class_install_property
1387         (object_class,
1388          PROP_FULLSCREEN,
1389          g_param_spec_boolean("fullscreen",
1390                               "Fullscreen",
1391                               "Requests window in fullscreen state",
1392                               FALSE,
1393                               G_PARAM_READWRITE));
1394
1395     /**
1396      * GstVaapiSink:synchronous:
1397      *
1398      * When enabled, runs the X display in synchronous mode. Note that
1399      * this is used only for debugging.
1400      */
1401     g_object_class_install_property
1402         (object_class,
1403          PROP_SYNCHRONOUS,
1404          g_param_spec_boolean("synchronous",
1405                               "Synchronous mode",
1406                               "Toggles X display synchronous mode",
1407                               FALSE,
1408                               G_PARAM_READWRITE));
1409
1410     /**
1411      * GstVaapiSink:rotation:
1412      *
1413      * The VA display rotation mode, expressed as a #GstVaapiRotation.
1414      */
1415     g_object_class_install_property
1416         (object_class,
1417          PROP_ROTATION,
1418          g_param_spec_enum(GST_VAAPI_DISPLAY_PROP_ROTATION,
1419                            "rotation",
1420                            "The display rotation mode",
1421                            GST_VAAPI_TYPE_ROTATION,
1422                            DEFAULT_ROTATION,
1423                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1424
1425     /**
1426      * GstVaapiSink:force-aspect-ratio:
1427      *
1428      * When enabled, scaling respects video aspect ratio; when disabled, the
1429      * video is distorted to fit the window.
1430      */
1431     g_object_class_install_property
1432         (object_class,
1433          PROP_FORCE_ASPECT_RATIO,
1434          g_param_spec_boolean("force-aspect-ratio",
1435                               "Force aspect ratio",
1436                               "When enabled, scaling will respect original aspect ratio",
1437                               TRUE,
1438                               G_PARAM_READWRITE));
1439 }
1440
1441 static void
1442 gst_vaapisink_init(GstVaapiSink *sink)
1443 {
1444     sink->caps           = NULL;
1445     sink->display        = NULL;
1446     sink->window         = NULL;
1447     sink->window_width   = 0;
1448     sink->window_height  = 0;
1449     sink->texture        = NULL;
1450     sink->video_buffer   = NULL;
1451     sink->video_width    = 0;
1452     sink->video_height   = 0;
1453     sink->video_par_n    = 1;
1454     sink->video_par_d    = 1;
1455     sink->foreign_window = FALSE;
1456     sink->fullscreen     = FALSE;
1457     sink->synchronous    = FALSE;
1458     sink->display_type   = DEFAULT_DISPLAY_TYPE;
1459     sink->rotation       = DEFAULT_ROTATION;
1460     sink->rotation_req   = DEFAULT_ROTATION;
1461     sink->use_reflection = FALSE;
1462     sink->use_overlay    = FALSE;
1463     sink->use_rotation   = FALSE;
1464     sink->keep_aspect    = TRUE;
1465 }