gst/vaapisink/gstvaapisink.c

   1 /*
   2  *  gstvaapisink.c - VA-API video sink
   3  *
   4  *  gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
  19  */
  20
  21 /**
  22  * SECTION:gstvaapisink
  23  * @short_description: A VA-API based videosink
  24  *
  25  * vaapisink renders video frames to a drawable (X #Window) on a local
  26  * display using the Video Acceleration (VA) API. The element will
  27  * create its own internal window and render into it.
  28  */
  29
  30 #include "config.h"
  31 #include <gst/gst.h>
  32 #include <gst/video/video.h>
  33 #include <gst/vaapi/gstvaapivideobuffer.h>
  34 #include <gst/vaapi/gstvaapivideosink.h>
  35 #include <gst/vaapi/gstvaapidisplay_x11.h>
  36 #include <gst/vaapi/gstvaapiwindow_x11.h>
  37 #if USE_VAAPISINK_GLX
  38 #include <gst/vaapi/gstvaapidisplay_glx.h>
  39 #include <gst/vaapi/gstvaapiwindow_glx.h>
  40 #endif
  41 #include "gstvaapisink.h"
  42
  43 /* Supported interfaces */
  44 #include <gst/interfaces/xoverlay.h>
  45
  46 #define GST_PLUGIN_NAME "vaapisink"
  47 #define GST_PLUGIN_DESC "A VA-API based videosink"
  48
  49 GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapisink);
  50 #define GST_CAT_DEFAULT gst_debug_vaapisink
  51
  52 /* ElementFactory information */
  53 static const GstElementDetails gst_vaapisink_details =
  54     GST_ELEMENT_DETAILS(
  55         "VA-API sink",
  56         "Sink/Video",
  57         GST_PLUGIN_DESC,
  58         "Gwenole Beauchesne <gbeauchesne@splitted-desktop.com>");
  59
  60 /* Default template */
  61 static GstStaticPadTemplate gst_vaapisink_sink_factory =
  62     GST_STATIC_PAD_TEMPLATE(
  63         "sink",
  64         GST_PAD_SINK,
  65         GST_PAD_ALWAYS,
  66         GST_STATIC_CAPS(GST_VAAPI_SURFACE_CAPS));
  67
  68 static void gst_vaapisink_iface_init(GType type);
  69
  70 GST_BOILERPLATE_FULL(
  71     GstVaapiSink,
  72     gst_vaapisink,
  73     GstVideoSink,
  74     GST_TYPE_VIDEO_SINK,
  75     gst_vaapisink_iface_init);
  76
  77 enum {
  78     PROP_0,
  79
  80     PROP_USE_GLX,
  81     PROP_DISPLAY,
  82     PROP_FULLSCREEN,
  83     PROP_SYNCHRONOUS,
  84     PROP_USE_REFLECTION
  85 };
  86
  87 /* GstImplementsInterface interface */
  88
  89 static gboolean
  90 gst_vaapisink_implements_interface_supported(
  91     GstImplementsInterface *iface,
  92     GType                   type
  93 )
  94 {
  95     return (type == GST_VAAPI_TYPE_VIDEO_SINK ||
  96             type == GST_TYPE_X_OVERLAY);
  97 }
  98
  99 static void
 100 gst_vaapisink_implements_iface_init(GstImplementsInterfaceClass *iface)
 101 {
 102     iface->supported = gst_vaapisink_implements_interface_supported;
 103 }
 104
 105 /* GstVaapiVideoSink interface */
 106
 107 static GstVaapiDisplay *
 108 gst_vaapisink_get_display(GstVaapiSink *sink);
 109
 110 static GstVaapiDisplay *
 111 gst_vaapi_video_sink_do_get_display(GstVaapiVideoSink *sink)
 112 {
 113     return gst_vaapisink_get_display(GST_VAAPISINK(sink));
 114 }
 115
 116 static void
 117 gst_vaapi_video_sink_iface_init(GstVaapiVideoSinkInterface *iface)
 118 {
 119     iface->get_display = gst_vaapi_video_sink_do_get_display;
 120 }
 121
 122 /* GstXOverlay interface */
 123
 124 static gboolean
 125 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, XID xid);
 126
 127 static GstFlowReturn
 128 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer);
 129
 130 static void
 131 gst_vaapisink_xoverlay_set_xid(GstXOverlay *overlay, XID xid)
 132 {
 133     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 134
 135     /* Disable GLX rendering when vaapisink is using a foreign X
 136        window. It's pretty much useless */
 137     sink->use_glx = FALSE;
 138
 139     gst_vaapisink_ensure_window_xid(sink, xid);
 140 }
 141
 142 static void
 143 gst_vaapisink_xoverlay_expose(GstXOverlay *overlay)
 144 {
 145     GstBaseSink * const base_sink = GST_BASE_SINK(overlay);
 146     GstBuffer *buffer;
 147
 148     buffer = gst_base_sink_get_last_buffer(base_sink);
 149     if (buffer) {
 150         gst_vaapisink_show_frame(base_sink, buffer);
 151         gst_buffer_unref(buffer);
 152     }
 153 }
 154
 155 static void
 156 gst_vaapisink_xoverlay_iface_init(GstXOverlayClass *iface)
 157 {
 158     iface->set_xwindow_id = gst_vaapisink_xoverlay_set_xid;
 159     iface->expose         = gst_vaapisink_xoverlay_expose;
 160 }
 161
 162 static void
 163 gst_vaapisink_iface_init(GType type)
 164 {
 165     const GType g_define_type_id = type;
 166
 167     G_IMPLEMENT_INTERFACE(GST_TYPE_IMPLEMENTS_INTERFACE,
 168                           gst_vaapisink_implements_iface_init);
 169     G_IMPLEMENT_INTERFACE(GST_VAAPI_TYPE_VIDEO_SINK,
 170                           gst_vaapi_video_sink_iface_init);
 171     G_IMPLEMENT_INTERFACE(GST_TYPE_X_OVERLAY,
 172                           gst_vaapisink_xoverlay_iface_init);
 173 }
 174
 175 static void
 176 gst_vaapisink_destroy(GstVaapiSink *sink)
 177 {
 178     if (sink->display) {
 179         g_object_unref(sink->display);
 180         sink->display = NULL;
 181     }
 182
 183     if (sink->display_name) {
 184         g_free(sink->display_name);
 185         sink->display_name = NULL;
 186     }
 187 }
 188
 189 /* Checks whether a ConfigureNotify event is in the queue */
 190 typedef struct _ConfigureNotifyEventPendingArgs ConfigureNotifyEventPendingArgs;
 191 struct _ConfigureNotifyEventPendingArgs {
 192     Window      window;
 193     guint       width;
 194     guint       height;
 195     gboolean    match;
 196 };
 197
 198 static Bool
 199 configure_notify_event_pending_cb(Display *dpy, XEvent *xev, XPointer arg)
 200 {
 201     ConfigureNotifyEventPendingArgs * const args =
 202         (ConfigureNotifyEventPendingArgs *)arg;
 203
 204     if (xev->type == ConfigureNotify &&
 205         xev->xconfigure.window == args->window &&
 206         xev->xconfigure.width  == args->width  &&
 207         xev->xconfigure.height == args->height)
 208         args->match = TRUE;
 209
 210     /* XXX: this is a hack to traverse the whole queue because we
 211        can't use XPeekIfEvent() since it could block */
 212     return False;
 213 }
 214
 215 static gboolean
 216 configure_notify_event_pending(
 217     GstVaapiSink *sink,
 218     Window        window,
 219     guint         width,
 220     guint         height
 221 )
 222 {
 223     ConfigureNotifyEventPendingArgs args;
 224     XEvent xev;
 225
 226     args.window = window;
 227     args.width  = width;
 228     args.height = height;
 229     args.match  = FALSE;
 230
 231     /* XXX: don't use XPeekIfEvent() because it might block */
 232     XCheckIfEvent(
 233         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 234         &xev,
 235         configure_notify_event_pending_cb, (XPointer)&args
 236     );
 237     return args.match;
 238 }
 239
 240 static inline gboolean
 241 gst_vaapisink_ensure_display(GstVaapiSink *sink)
 242 {
 243     if (!sink->display) {
 244 #if USE_VAAPISINK_GLX
 245         if (sink->use_glx)
 246             sink->display = gst_vaapi_display_glx_new(sink->display_name);
 247         else
 248 #endif
 249             sink->display = gst_vaapi_display_x11_new(sink->display_name);
 250         if (!sink->display || !gst_vaapi_display_get_display(sink->display))
 251             return FALSE;
 252         g_object_set(sink, "synchronous", sink->synchronous, NULL);
 253     }
 254     return sink->display != NULL;
 255 }
 256
 257 static gboolean
 258 gst_vaapisink_ensure_render_rect(GstVaapiSink *sink, guint width, guint height)
 259 {
 260     GstVaapiRectangle * const display_rect = &sink->display_rect;
 261     guint num, den, display_par_n, display_par_d;
 262     double display_ratio;
 263     gboolean success;
 264
 265     GST_DEBUG("ensure render rect within %ux%u bounds", width, height);
 266
 267     gst_vaapi_display_get_pixel_aspect_ratio(
 268         sink->display,
 269         &display_par_n, &display_par_d
 270     );
 271     GST_DEBUG("display pixel-aspect-ratio %d/%d",
 272               display_par_n, display_par_d);
 273
 274     success = gst_video_calculate_display_ratio(
 275         &num, &den,
 276         sink->video_width, sink->video_height,
 277         sink->video_par_n, sink->video_par_d,
 278         display_par_n, display_par_d
 279     );
 280     if (!success)
 281         return FALSE;
 282     GST_DEBUG("video size %dx%d, calculated ratio %d/%d",
 283               sink->video_width, sink->video_height, num, den);
 284
 285     if ((sink->video_height % den) == 0) {
 286         GST_DEBUG("keeping video height");
 287         display_rect->width  =
 288             gst_util_uint64_scale_int(sink->video_height, num, den);
 289         display_rect->height = sink->video_height;
 290     }
 291     else if ((sink->video_width % num) == 0) {
 292         GST_DEBUG("keeping video width");
 293         display_rect->width  = sink->video_width;
 294         display_rect->height =
 295             gst_util_uint64_scale_int(sink->video_width, den, num);
 296     }
 297     else {
 298         GST_DEBUG("approximating while keeping video height");
 299         display_rect->width  =
 300             gst_util_uint64_scale_int(sink->video_height, num, den);
 301         display_rect->height = sink->video_height;
 302     }
 303     display_ratio = (gdouble)display_rect->width / display_rect->height;
 304     GST_DEBUG("scaling to %ux%u", display_rect->width, display_rect->height);
 305
 306     if (sink->fullscreen ||
 307         display_rect->width > width || display_rect->height > height) {
 308         if (sink->video_width > sink->video_height) {
 309             display_rect->width  = width;
 310             display_rect->height = width / display_ratio;
 311         }
 312         else {
 313             display_rect->width  = height * display_ratio;
 314             display_rect->height = height;
 315         }
 316     }
 317
 318     if (sink->fullscreen) {
 319         display_rect->x  = (width  - display_rect->width)  / 2;
 320         display_rect->y  = (height - display_rect->height) / 2;
 321     }
 322     else {
 323         display_rect->x  = 0;
 324         display_rect->y  = 0;
 325     }
 326
 327     GST_DEBUG("render rect (%d,%d):%ux%u",
 328               display_rect->x, display_rect->y,
 329               display_rect->width, display_rect->height);
 330     return TRUE;
 331 }
 332
 333 static inline gboolean
 334 gst_vaapisink_ensure_window(GstVaapiSink *sink, guint width, guint height)
 335 {
 336     GstVaapiDisplay * const display = sink->display;
 337
 338     if (!sink->window) {
 339 #if USE_VAAPISINK_GLX
 340         if (sink->use_glx)
 341             sink->window = gst_vaapi_window_glx_new(display, width, height);
 342         else
 343 #endif
 344             sink->window = gst_vaapi_window_x11_new(display, width, height);
 345         if (sink->window)
 346             gst_x_overlay_got_xwindow_id(
 347                 GST_X_OVERLAY(sink),
 348                 gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window))
 349             );
 350     }
 351     return sink->window != NULL;
 352 }
 353
 354 static gboolean
 355 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, XID xid)
 356 {
 357     Window rootwin;
 358     unsigned int width, height, border_width, depth;
 359     int x, y;
 360
 361     if (!gst_vaapisink_ensure_display(sink))
 362         return FALSE;
 363
 364     gst_vaapi_display_lock(sink->display);
 365     XGetGeometry(
 366         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 367         xid,
 368         &rootwin,
 369         &x, &y, &width, &height, &border_width, &depth
 370     );
 371     gst_vaapi_display_unlock(sink->display);
 372
 373     if ((width != sink->window_width || height != sink->window_height) &&
 374         !configure_notify_event_pending(sink, xid, width, height)) {
 375         if (!gst_vaapisink_ensure_render_rect(sink, width, height))
 376             return FALSE;
 377         sink->window_width  = width;
 378         sink->window_height = height;
 379     }
 380
 381     if (sink->window &&
 382         gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window)) == xid)
 383         return TRUE;
 384
 385     if (sink->window) {
 386         g_object_unref(sink->window);
 387         sink->window = NULL;
 388     }
 389
 390 #if USE_VAAPISINK_GLX
 391     if (sink->use_glx)
 392         sink->window = gst_vaapi_window_glx_new_with_xid(sink->display, xid);
 393     else
 394 #endif
 395         sink->window = gst_vaapi_window_x11_new_with_xid(sink->display, xid);
 396     return sink->window != NULL;
 397 }
 398
 399 static gboolean
 400 gst_vaapisink_start(GstBaseSink *base_sink)
 401 {
 402     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 403
 404     if (!gst_vaapisink_ensure_display(sink))
 405         return FALSE;
 406     return TRUE;
 407 }
 408
 409 static gboolean
 410 gst_vaapisink_stop(GstBaseSink *base_sink)
 411 {
 412     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 413
 414     if (sink->window) {
 415         g_object_unref(sink->window);
 416         sink->window = NULL;
 417     }
 418
 419     if (sink->display) {
 420         g_object_unref(sink->display);
 421         sink->display = NULL;
 422     }
 423     return TRUE;
 424 }
 425
 426 static gboolean
 427 gst_vaapisink_set_caps(GstBaseSink *base_sink, GstCaps *caps)
 428 {
 429     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 430     GstStructure * const structure = gst_caps_get_structure(caps, 0);
 431     guint display_width, display_height, win_width, win_height;
 432     gint video_width, video_height, video_par_n = 1, video_par_d = 1;
 433
 434     if (!structure)
 435         return FALSE;
 436     if (!gst_structure_get_int(structure, "width",  &video_width))
 437         return FALSE;
 438     if (!gst_structure_get_int(structure, "height", &video_height))
 439         return FALSE;
 440     sink->video_width  = video_width;
 441     sink->video_height = video_height;
 442
 443     gst_video_parse_caps_pixel_aspect_ratio(caps, &video_par_n, &video_par_d);
 444     sink->video_par_n  = video_par_n;
 445     sink->video_par_d  = video_par_d;
 446     GST_DEBUG("video pixel-aspect-ratio %d/%d", video_par_n, video_par_d);
 447
 448     gst_vaapi_display_get_size(sink->display, &display_width, &display_height);
 449     if (!gst_vaapisink_ensure_render_rect(sink, display_width, display_height))
 450         return FALSE;
 451
 452     if (sink->fullscreen) {
 453         win_width  = display_width;
 454         win_height = display_height;
 455     }
 456     else {
 457         win_width  = sink->display_rect.width;
 458         win_height = sink->display_rect.height;
 459     }
 460
 461     if (sink->window)
 462         gst_vaapi_window_set_size(sink->window, win_width, win_height);
 463     else {
 464         gst_vaapi_display_lock(sink->display);
 465         gst_x_overlay_prepare_xwindow_id(GST_X_OVERLAY(sink));
 466         gst_vaapi_display_unlock(sink->display);
 467         if (sink->window)
 468             return TRUE;
 469         if (!gst_vaapisink_ensure_window(sink, win_width, win_height))
 470             return FALSE;
 471         gst_vaapi_window_set_fullscreen(sink->window, sink->fullscreen);
 472         gst_vaapi_window_show(sink->window);
 473     }
 474     sink->window_width  = win_width;
 475     sink->window_height = win_height;
 476     return TRUE;
 477 }
 478
 479 static GstFlowReturn
 480 gst_vaapisink_buffer_alloc(
 481     GstBaseSink *base_sink,
 482     guint64      offset,
 483     guint        size,
 484     GstCaps     *caps,
 485     GstBuffer  **pout_buffer
 486 )
 487 {
 488     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 489     GstStructure *structure;
 490     GstBuffer *buffer;
 491
 492     structure = gst_caps_get_structure(caps, 0);
 493     if (!gst_structure_has_name(structure, "video/x-vaapi-surface"))
 494         goto error_invalid_caps;
 495
 496     buffer = gst_vaapi_video_buffer_new(sink->display);
 497     if (!buffer)
 498         goto error_create_buffer;
 499
 500     gst_buffer_set_caps(buffer, caps);
 501     *pout_buffer = buffer;
 502     return GST_FLOW_OK;
 503
 504     /* ERRORS */
 505 error_invalid_caps:
 506     {
 507         GST_DEBUG("failed to validate input caps");
 508         return GST_FLOW_UNEXPECTED;
 509     }
 510 error_create_buffer:
 511     {
 512         GST_DEBUG("failed to create video buffer");
 513         return GST_FLOW_UNEXPECTED;
 514     }
 515 }
 516
 517 #if USE_VAAPISINK_GLX
 518 static void
 519 render_background(GstVaapiSink *sink)
 520 {
 521     /* Original code from Mirco Muller (MacSlow):
 522        <http://cgit.freedesktop.org/~macslow/gl-gst-player/> */
 523     GLfloat fStartX = 0.0f;
 524     GLfloat fStartY = 0.0f;
 525     GLfloat fWidth  = (GLfloat)sink->window_width;
 526     GLfloat fHeight = (GLfloat)sink->window_height;
 527
 528     glClear(GL_COLOR_BUFFER_BIT);
 529     glBegin(GL_QUADS);
 530     {
 531         /* top third, darker grey to white */
 532         glColor3f(0.85f, 0.85f, 0.85f);
 533         glVertex3f(fStartX, fStartY, 0.0f);
 534         glColor3f(0.85f, 0.85f, 0.85f);
 535         glVertex3f(fStartX + fWidth, fStartY, 0.0f);
 536         glColor3f(1.0f, 1.0f, 1.0f);
 537         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 538         glColor3f(1.0f, 1.0f, 1.0f);
 539         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 540
 541         /* middle third, just plain white */
 542         glColor3f(1.0f, 1.0f, 1.0f);
 543         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 544         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 545         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 546         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 547
 548         /* bottom third, white to lighter grey */
 549         glColor3f(1.0f, 1.0f, 1.0f);
 550         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 551         glColor3f(1.0f, 1.0f, 1.0f);
 552         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 553         glColor3f(0.62f, 0.66f, 0.69f);
 554         glVertex3f(fStartX + fWidth, fStartY + fHeight, 0.0f);
 555         glColor3f(0.62f, 0.66f, 0.69f);
 556         glVertex3f(fStartX, fStartY + fHeight, 0.0f);
 557     }
 558     glEnd();
 559 }
 560
 561 static void
 562 render_frame(GstVaapiSink *sink)
 563 {
 564     const guint x1 = sink->display_rect.x;
 565     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 566     const guint y1 = sink->display_rect.y;
 567     const guint y2 = sink->display_rect.y + sink->display_rect.height;
 568
 569     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 570     glBegin(GL_QUADS);
 571     {
 572         glTexCoord2f(0.0f, 0.0f); glVertex2i(x1, y1);
 573         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y2);
 574         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y2);
 575         glTexCoord2f(1.0f, 0.0f); glVertex2i(x2, y1);
 576     }
 577     glEnd();
 578 }
 579
 580 static void
 581 render_reflection(GstVaapiSink *sink)
 582 {
 583     const guint x1 = sink->display_rect.x;
 584     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 585     const guint y1 = sink->display_rect.y;
 586     const guint rh = sink->display_rect.height / 5;
 587     GLfloat     ry = 1.0f - (GLfloat)rh / (GLfloat)sink->display_rect.height;
 588
 589     glBegin(GL_QUADS);
 590     {
 591         glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 592         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y1);
 593         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y1);
 594
 595         glColor4f(1.0f, 1.0f, 1.0f, 0.0f);
 596         glTexCoord2f(1.0f, ry); glVertex2i(x2, y1 + rh);
 597         glTexCoord2f(0.0f, ry); glVertex2i(x1, y1 + rh);
 598     }
 599     glEnd();
 600 }
 601
 602 static gboolean
 603 gst_vaapisink_show_frame_glx(
 604     GstVaapiSink    *sink,
 605     GstVaapiSurface *surface,
 606     guint            flags
 607 )
 608 {
 609     GstVaapiWindowGLX * const window = GST_VAAPI_WINDOW_GLX(sink->window);
 610     GLenum target;
 611     GLuint texture;
 612
 613     gst_vaapi_window_glx_make_current(window);
 614     if (!sink->texture) {
 615         sink->texture = gst_vaapi_texture_new(
 616             sink->display,
 617             GL_TEXTURE_2D,
 618             GL_BGRA,
 619             sink->video_width,
 620             sink->video_height
 621         );
 622         if (!sink->texture)
 623             goto error_create_texture;
 624     }
 625     if (!gst_vaapi_texture_put_surface(sink->texture, surface, flags))
 626         goto error_transfer_surface;
 627
 628     target  = gst_vaapi_texture_get_target(sink->texture);
 629     texture = gst_vaapi_texture_get_id(sink->texture);
 630     if (target != GL_TEXTURE_2D || !texture)
 631         return FALSE;
 632
 633     render_background(sink);
 634
 635     glEnable(target);
 636     glBindTexture(target, texture);
 637     {
 638         if (sink->use_reflection) {
 639             glPushMatrix();
 640             glRotatef(20.0f, 0.0f, 1.0f, 0.0f);
 641             glTranslatef(50.0f, 0.0f, 0.0f);
 642         }
 643         render_frame(sink);
 644         if (sink->use_reflection) {
 645             glPushMatrix();
 646             glTranslatef(0.0, (GLfloat)sink->display_rect.height + 5.0f, 0.0f);
 647             render_reflection(sink);
 648             glPopMatrix();
 649             glPopMatrix();
 650         }
 651     }
 652     glBindTexture(target, 0);
 653     glDisable(target);
 654     gst_vaapi_window_glx_swap_buffers(window);
 655     return TRUE;
 656
 657     /* ERRORS */
 658 error_create_texture:
 659     {
 660         GST_DEBUG("could not create VA/GLX texture");
 661         return FALSE;
 662     }
 663 error_transfer_surface:
 664     {
 665         GST_DEBUG("could not transfer VA surface to texture");
 666         return FALSE;
 667     }
 668 }
 669 #endif
 670
 671 static inline gboolean
 672 gst_vaapisink_show_frame_x11(
 673     GstVaapiSink    *sink,
 674     GstVaapiSurface *surface,
 675     guint            flags
 676 )
 677 {
 678     if (!gst_vaapi_window_put_surface(sink->window, surface,
 679                                       NULL, &sink->display_rect, flags)) {
 680         GST_DEBUG("could not render VA surface");
 681         return FALSE;
 682     }
 683     return TRUE;
 684 }
 685
 686 static GstFlowReturn
 687 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer)
 688 {
 689     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 690     GstVaapiVideoBuffer * const vbuffer = GST_VAAPI_VIDEO_BUFFER(buffer);
 691     GstVaapiSurface *surface;
 692     guint flags;
 693     gboolean success;
 694
 695     if (!sink->window)
 696         return GST_FLOW_UNEXPECTED;
 697
 698     surface = gst_vaapi_video_buffer_get_surface(vbuffer);
 699     if (!surface)
 700         return GST_FLOW_UNEXPECTED;
 701
 702     GST_DEBUG("render surface %" GST_VAAPI_ID_FORMAT,
 703               GST_VAAPI_ID_ARGS(gst_vaapi_surface_get_id(surface)));
 704
 705     flags = GST_VAAPI_PICTURE_STRUCTURE_FRAME;
 706
 707 #if USE_VAAPISINK_GLX
 708     if (sink->use_glx)
 709         success = gst_vaapisink_show_frame_glx(sink, surface, flags);
 710     else
 711 #endif
 712         success = gst_vaapisink_show_frame_x11(sink, surface, flags);
 713     return success ? GST_FLOW_OK : GST_FLOW_UNEXPECTED;
 714 }
 715
 716 static void
 717 gst_vaapisink_finalize(GObject *object)
 718 {
 719     gst_vaapisink_destroy(GST_VAAPISINK(object));
 720
 721     G_OBJECT_CLASS(parent_class)->finalize(object);
 722 }
 723
 724 static void
 725 gst_vaapisink_set_property(
 726     GObject      *object,
 727     guint         prop_id,
 728     const GValue *value,
 729     GParamSpec   *pspec
 730 )
 731 {
 732     GstVaapiSink * const sink = GST_VAAPISINK(object);
 733
 734     switch (prop_id) {
 735     case PROP_USE_GLX:
 736         sink->use_glx = g_value_get_boolean(value);
 737         break;
 738     case PROP_DISPLAY:
 739         g_free(sink->display_name);
 740         sink->display_name = g_strdup(g_value_get_string(value));
 741         break;
 742     case PROP_FULLSCREEN:
 743         sink->fullscreen = g_value_get_boolean(value);
 744         break;
 745     case PROP_SYNCHRONOUS:
 746         sink->synchronous = g_value_get_boolean(value);
 747         break;
 748     case PROP_USE_REFLECTION:
 749         sink->use_reflection = g_value_get_boolean(value);
 750         break;
 751     default:
 752         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
 753         break;
 754     }
 755 }
 756
 757 static void
 758 gst_vaapisink_get_property(
 759     GObject    *object,
 760     guint       prop_id,
 761     GValue     *value,
 762     GParamSpec *pspec
 763 )
 764 {
 765     GstVaapiSink * const sink = GST_VAAPISINK(object);
 766
 767     switch (prop_id) {
 768     case PROP_USE_GLX:
 769         g_value_set_boolean(value, sink->use_glx);
 770         break;
 771     case PROP_DISPLAY:
 772         g_value_set_string(value, sink->display_name);
 773         break;
 774     case PROP_FULLSCREEN:
 775         g_value_set_boolean(value, sink->fullscreen);
 776         break;
 777     case PROP_SYNCHRONOUS:
 778         g_value_set_boolean(value, sink->synchronous);
 779         break;
 780     case PROP_USE_REFLECTION:
 781         g_value_set_boolean(value, sink->use_reflection);
 782         break;
 783     default:
 784         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
 785         break;
 786     }
 787 }
 788
 789 static void
 790 gst_vaapisink_base_init(gpointer klass)
 791 {
 792     GstElementClass * const element_class = GST_ELEMENT_CLASS(klass);
 793
 794     gst_element_class_set_details(element_class, &gst_vaapisink_details);
 795
 796     gst_element_class_add_pad_template(
 797         element_class,
 798         gst_static_pad_template_get(&gst_vaapisink_sink_factory)
 799     );
 800 }
 801
 802 static void
 803 gst_vaapisink_class_init(GstVaapiSinkClass *klass)
 804 {
 805     GObjectClass * const     object_class   = G_OBJECT_CLASS(klass);
 806     GstBaseSinkClass * const basesink_class = GST_BASE_SINK_CLASS(klass);
 807
 808     object_class->finalize       = gst_vaapisink_finalize;
 809     object_class->set_property   = gst_vaapisink_set_property;
 810     object_class->get_property   = gst_vaapisink_get_property;
 811
 812     basesink_class->start        = gst_vaapisink_start;
 813     basesink_class->stop         = gst_vaapisink_stop;
 814     basesink_class->set_caps     = gst_vaapisink_set_caps;
 815     basesink_class->buffer_alloc = gst_vaapisink_buffer_alloc;
 816     basesink_class->preroll      = gst_vaapisink_show_frame;
 817     basesink_class->render       = gst_vaapisink_show_frame;
 818
 819 #if USE_VAAPISINK_GLX
 820     g_object_class_install_property
 821         (object_class,
 822          PROP_USE_GLX,
 823          g_param_spec_boolean("use-glx",
 824                               "GLX rendering",
 825                               "Enables GLX rendering",
 826                               TRUE,
 827                               G_PARAM_READWRITE));
 828
 829     g_object_class_install_property
 830         (object_class,
 831          PROP_USE_REFLECTION,
 832          g_param_spec_boolean("use-reflection",
 833                               "Reflection effect",
 834                               "Enables OpenGL reflection effect",
 835                               FALSE,
 836                               G_PARAM_READWRITE));
 837 #endif
 838
 839     g_object_class_install_property
 840         (object_class,
 841          PROP_DISPLAY,
 842          g_param_spec_string("display",
 843                              "X11 display name",
 844                              "X11 display name",
 845                              "",
 846                              G_PARAM_READWRITE));
 847
 848     g_object_class_install_property
 849         (object_class,
 850          PROP_FULLSCREEN,
 851          g_param_spec_boolean("fullscreen",
 852                               "Fullscreen",
 853                               "Requests window in fullscreen state",
 854                               FALSE,
 855                               G_PARAM_READWRITE));
 856
 857     /**
 858      * GstVaapiSink:synchronous:
 859      *
 860      * When enabled, runs the X display in synchronous mode. Note that
 861      * this is used only for debugging.
 862      */
 863     g_object_class_install_property
 864         (object_class,
 865          PROP_SYNCHRONOUS,
 866          g_param_spec_boolean("synchronous",
 867                               "Synchronous mode",
 868                               "Toggles X display synchronous mode",
 869                               FALSE,
 870                               G_PARAM_READWRITE));
 871 }
 872
 873 static void
 874 gst_vaapisink_init(GstVaapiSink *sink, GstVaapiSinkClass *klass)
 875 {
 876     sink->display_name   = NULL;
 877     sink->display        = NULL;
 878     sink->window         = NULL;
 879     sink->window_width   = 0;
 880     sink->window_height  = 0;
 881     sink->texture        = NULL;
 882     sink->video_width    = 0;
 883     sink->video_height   = 0;
 884     sink->video_par_n    = 1;
 885     sink->video_par_d    = 1;
 886     sink->fullscreen     = FALSE;
 887     sink->synchronous    = FALSE;
 888     sink->use_glx        = USE_VAAPISINK_GLX;
 889     sink->use_reflection = FALSE;
 890 }
 891
 892 GstVaapiDisplay *
 893 gst_vaapisink_get_display(GstVaapiSink *sink)
 894 {
 895     if (!gst_vaapisink_ensure_display(sink))
 896         return NULL;
 897     return sink->display;
 898 }
 899
 900 static gboolean
 901 plugin_init(GstPlugin *plugin)
 902 {
 903     GST_DEBUG_CATEGORY_INIT(gst_debug_vaapisink,
 904                             GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
 905
 906     return gst_element_register(plugin,
 907                                 GST_PLUGIN_NAME,
 908                                 GST_RANK_PRIMARY,
 909                                 GST_TYPE_VAAPISINK);
 910 }
 911
 912 GST_PLUGIN_DEFINE(
 913     GST_VERSION_MAJOR, GST_VERSION_MINOR,
 914     GST_PLUGIN_NAME,
 915     GST_PLUGIN_DESC,
 916     plugin_init,
 917     PACKAGE_VERSION,
 918     "GPL",
 919     PACKAGE,
 920     PACKAGE_BUGREPORT);