gst/vaapi/gstvaapisink.c

   1 /*
   2  *  gstvaapisink.c - VA-API video sink
   3  *
   4  *  Copyright (C) 2010-2011 Splitted-Desktop Systems
   5  *  Copyright (C) 2011-2012 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 "config.h"
  33 #include <gst/gst.h>
  34 #include <gst/gstutils_version.h>
  35 #include <gst/video/video.h>
  36 #include <gst/video/videocontext.h>
  37 #include <gst/vaapi/gstvaapivideobuffer.h>
  38 #include <gst/vaapi/gstvaapivideosink.h>
  39 #include <gst/vaapi/gstvaapidisplay_x11.h>
  40 #include <gst/vaapi/gstvaapiwindow_x11.h>
  41 #if USE_VAAPISINK_GLX
  42 #include <gst/vaapi/gstvaapidisplay_glx.h>
  43 #include <gst/vaapi/gstvaapiwindow_glx.h>
  44 #endif
  45
  46 /* Supported interfaces */
  47 #include <gst/interfaces/xoverlay.h>
  48
  49 #include "gstvaapisink.h"
  50 #include "gstvaapipluginutil.h"
  51
  52 #define HAVE_GST_XOVERLAY_SET_WINDOW_HANDLE \
  53     GST_PLUGINS_BASE_CHECK_VERSION(0,10,31)
  54
  55 #define HAVE_GST_XOVERLAY_SET_RENDER_RECTANGLE \
  56     GST_PLUGINS_BASE_CHECK_VERSION(0,10,29)
  57
  58 #define GST_PLUGIN_NAME "vaapisink"
  59 #define GST_PLUGIN_DESC "A VA-API based videosink"
  60
  61 GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapisink);
  62 #define GST_CAT_DEFAULT gst_debug_vaapisink
  63
  64 /* ElementFactory information */
  65 static const GstElementDetails gst_vaapisink_details =
  66     GST_ELEMENT_DETAILS(
  67         "VA-API sink",
  68         "Sink/Video",
  69         GST_PLUGIN_DESC,
  70         "Gwenole Beauchesne <gwenole.beauchesne@intel.com>");
  71
  72 /* Default template */
  73 static GstStaticPadTemplate gst_vaapisink_sink_factory =
  74     GST_STATIC_PAD_TEMPLATE(
  75         "sink",
  76         GST_PAD_SINK,
  77         GST_PAD_ALWAYS,
  78         GST_STATIC_CAPS(GST_VAAPI_SURFACE_CAPS));
  79
  80 static void gst_vaapisink_iface_init(GType type);
  81
  82 GST_BOILERPLATE_FULL(
  83     GstVaapiSink,
  84     gst_vaapisink,
  85     GstVideoSink,
  86     GST_TYPE_VIDEO_SINK,
  87     gst_vaapisink_iface_init);
  88
  89 enum {
  90     PROP_0,
  91
  92     PROP_USE_GLX,
  93     PROP_FULLSCREEN,
  94     PROP_SYNCHRONOUS,
  95     PROP_USE_REFLECTION
  96 };
  97
  98 /* GstImplementsInterface interface */
  99
 100 static gboolean
 101 gst_vaapisink_implements_interface_supported(
 102     GstImplementsInterface *iface,
 103     GType                   type
 104 )
 105 {
 106     return (type == GST_TYPE_VIDEO_CONTEXT ||
 107             type == GST_TYPE_X_OVERLAY);
 108 }
 109
 110 static void
 111 gst_vaapisink_implements_iface_init(GstImplementsInterfaceClass *iface)
 112 {
 113     iface->supported = gst_vaapisink_implements_interface_supported;
 114 }
 115
 116 /* GstVaapiVideoSink interface */
 117
 118 static void
 119 gst_vaapisink_set_video_context(GstVideoContext *context, const gchar *type,
 120     const GValue *value)
 121 {
 122   GstVaapiSink *sink = GST_VAAPISINK (context);
 123   gst_vaapi_set_display (type, value, &sink->display);
 124 }
 125
 126 static void
 127 gst_vaapisink_video_context_iface_init(GstVideoContextInterface *iface)
 128 {
 129     iface->set_context = gst_vaapisink_set_video_context;
 130 }
 131
 132 /* GstXOverlay interface */
 133
 134 static gboolean
 135 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id);
 136
 137 static GstFlowReturn
 138 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer);
 139
 140 static inline void
 141 _gst_vaapisink_xoverlay_set_xid(GstXOverlay *overlay, guintptr window_id)
 142 {
 143     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 144
 145     /* Disable GLX rendering when vaapisink is using a foreign X
 146        window. It's pretty much useless */
 147     sink->use_glx = FALSE;
 148
 149     sink->foreign_window = TRUE;
 150     gst_vaapisink_ensure_window_xid(sink, window_id);
 151 }
 152
 153 #if HAVE_GST_XOVERLAY_SET_WINDOW_HANDLE
 154 static void
 155 gst_vaapisink_xoverlay_set_window_handle(GstXOverlay *overlay, guintptr window_id)
 156 {
 157     _gst_vaapisink_xoverlay_set_xid(overlay, window_id);
 158 }
 159 #else
 160 static void
 161 gst_vaapisink_xoverlay_set_xid(GstXOverlay *overlay, XID xid)
 162 {
 163     _gst_vaapisink_xoverlay_set_xid(overlay, xid);
 164 }
 165 #endif
 166
 167 #if HAVE_GST_XOVERLAY_SET_RENDER_RECTANGLE
 168 static void
 169 gst_vaapisink_xoverlay_set_render_rectangle(
 170     GstXOverlay *overlay,
 171     gint         x,
 172     gint         y,
 173     gint         width,
 174     gint         height
 175 )
 176 {
 177     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 178     GstVaapiRectangle * const display_rect = &sink->display_rect;
 179
 180     display_rect->x      = x;
 181     display_rect->y      = y;
 182     display_rect->width  = width;
 183     display_rect->height = height;
 184
 185     GST_DEBUG("render rect (%d,%d):%ux%u",
 186               display_rect->x, display_rect->y,
 187               display_rect->width, display_rect->height);
 188 }
 189 #endif
 190
 191 static void
 192 gst_vaapisink_xoverlay_expose(GstXOverlay *overlay)
 193 {
 194     GstBaseSink * const base_sink = GST_BASE_SINK(overlay);
 195     GstBuffer *buffer;
 196
 197     buffer = gst_base_sink_get_last_buffer(base_sink);
 198     if (buffer) {
 199         gst_vaapisink_show_frame(base_sink, buffer);
 200         gst_buffer_unref(buffer);
 201     }
 202 }
 203
 204 static void
 205 gst_vaapisink_xoverlay_iface_init(GstXOverlayClass *iface)
 206 {
 207 #if HAVE_GST_XOVERLAY_SET_WINDOW_HANDLE
 208     iface->set_window_handle    = gst_vaapisink_xoverlay_set_window_handle;
 209 #else
 210     iface->set_xwindow_id       = gst_vaapisink_xoverlay_set_xid;
 211 #endif
 212 #if HAVE_GST_XOVERLAY_SET_RENDER_RECTANGLE
 213     iface->set_render_rectangle = gst_vaapisink_xoverlay_set_render_rectangle;
 214 #endif
 215     iface->expose               = gst_vaapisink_xoverlay_expose;
 216 }
 217
 218 static void
 219 gst_vaapisink_iface_init(GType type)
 220 {
 221     const GType g_define_type_id = type;
 222
 223     G_IMPLEMENT_INTERFACE(GST_TYPE_IMPLEMENTS_INTERFACE,
 224                           gst_vaapisink_implements_iface_init);
 225     G_IMPLEMENT_INTERFACE(GST_TYPE_VIDEO_CONTEXT,
 226                           gst_vaapisink_video_context_iface_init);
 227     G_IMPLEMENT_INTERFACE(GST_TYPE_X_OVERLAY,
 228                           gst_vaapisink_xoverlay_iface_init);
 229 }
 230
 231 static void
 232 gst_vaapisink_destroy(GstVaapiSink *sink)
 233 {
 234     if (sink->texture) {
 235         g_object_unref(sink->texture);
 236         sink->texture = NULL;
 237     }
 238
 239     if (sink->display) {
 240         g_object_unref(sink->display);
 241         sink->display = NULL;
 242     }
 243
 244     gst_caps_replace(&sink->caps, NULL);
 245 }
 246
 247 /* Checks whether a ConfigureNotify event is in the queue */
 248 typedef struct _ConfigureNotifyEventPendingArgs ConfigureNotifyEventPendingArgs;
 249 struct _ConfigureNotifyEventPendingArgs {
 250     Window      window;
 251     guint       width;
 252     guint       height;
 253     gboolean    match;
 254 };
 255
 256 static Bool
 257 configure_notify_event_pending_cb(Display *dpy, XEvent *xev, XPointer arg)
 258 {
 259     ConfigureNotifyEventPendingArgs * const args =
 260         (ConfigureNotifyEventPendingArgs *)arg;
 261
 262     if (xev->type == ConfigureNotify &&
 263         xev->xconfigure.window == args->window &&
 264         xev->xconfigure.width  == args->width  &&
 265         xev->xconfigure.height == args->height)
 266         args->match = TRUE;
 267
 268     /* XXX: this is a hack to traverse the whole queue because we
 269        can't use XPeekIfEvent() since it could block */
 270     return False;
 271 }
 272
 273 static gboolean
 274 configure_notify_event_pending(
 275     GstVaapiSink *sink,
 276     Window        window,
 277     guint         width,
 278     guint         height
 279 )
 280 {
 281     ConfigureNotifyEventPendingArgs args;
 282     XEvent xev;
 283
 284     args.window = window;
 285     args.width  = width;
 286     args.height = height;
 287     args.match  = FALSE;
 288
 289     /* XXX: don't use XPeekIfEvent() because it might block */
 290     XCheckIfEvent(
 291         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 292         &xev,
 293         configure_notify_event_pending_cb, (XPointer)&args
 294     );
 295     return args.match;
 296 }
 297
 298 static gboolean
 299 gst_vaapisink_ensure_render_rect(GstVaapiSink *sink, guint width, guint height)
 300 {
 301     GstVaapiRectangle * const display_rect = &sink->display_rect;
 302     guint num, den, display_par_n, display_par_d;
 303     gboolean success;
 304
 305     /* Return success if caps are not set yet */
 306     if (!sink->caps)
 307         return TRUE;
 308
 309     GST_DEBUG("ensure render rect within %ux%u bounds", width, height);
 310
 311     gst_vaapi_display_get_pixel_aspect_ratio(
 312         sink->display,
 313         &display_par_n, &display_par_d
 314     );
 315     GST_DEBUG("display pixel-aspect-ratio %d/%d",
 316               display_par_n, display_par_d);
 317
 318     success = gst_video_calculate_display_ratio(
 319         &num, &den,
 320         sink->video_width, sink->video_height,
 321         sink->video_par_n, sink->video_par_d,
 322         display_par_n, display_par_d
 323     );
 324     if (!success)
 325         return FALSE;
 326     GST_DEBUG("video size %dx%d, calculated ratio %d/%d",
 327               sink->video_width, sink->video_height, num, den);
 328
 329     display_rect->width = gst_util_uint64_scale_int(height, num, den);
 330     if (display_rect->width <= width) {
 331         GST_DEBUG("keeping window height");
 332         display_rect->height = height;
 333     }
 334     else {
 335         GST_DEBUG("keeping window width");
 336         display_rect->width  = width;
 337         display_rect->height =
 338             gst_util_uint64_scale_int(width, den, num);
 339     }
 340     GST_DEBUG("scaling video to %ux%u", display_rect->width, display_rect->height);
 341
 342     g_assert(display_rect->width  <= width);
 343     g_assert(display_rect->height <= height);
 344
 345     display_rect->x = (width  - display_rect->width)  / 2;
 346     display_rect->y = (height - display_rect->height) / 2;
 347
 348     GST_DEBUG("render rect (%d,%d):%ux%u",
 349               display_rect->x, display_rect->y,
 350               display_rect->width, display_rect->height);
 351     return TRUE;
 352 }
 353
 354 static inline gboolean
 355 gst_vaapisink_ensure_window(GstVaapiSink *sink, guint width, guint height)
 356 {
 357     GstVaapiDisplay * const display = sink->display;
 358
 359     if (!sink->window) {
 360 #if USE_VAAPISINK_GLX
 361         if (sink->use_glx)
 362             sink->window = gst_vaapi_window_glx_new(display, width, height);
 363         else
 364 #endif
 365             sink->window = gst_vaapi_window_x11_new(display, width, height);
 366         if (sink->window)
 367             gst_x_overlay_got_xwindow_id(
 368                 GST_X_OVERLAY(sink),
 369                 gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window))
 370             );
 371     }
 372     return sink->window != NULL;
 373 }
 374
 375 static gboolean
 376 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id)
 377 {
 378     Window rootwin;
 379     unsigned int width, height, border_width, depth;
 380     int x, y;
 381     XID xid = window_id;
 382
 383     if (!gst_vaapi_ensure_display(sink, &sink->display))
 384         return FALSE;
 385
 386     gst_vaapi_display_lock(sink->display);
 387     XGetGeometry(
 388         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 389         xid,
 390         &rootwin,
 391         &x, &y, &width, &height, &border_width, &depth
 392     );
 393     gst_vaapi_display_unlock(sink->display);
 394
 395     if ((width != sink->window_width || height != sink->window_height) &&
 396         !configure_notify_event_pending(sink, xid, width, height)) {
 397         if (!gst_vaapisink_ensure_render_rect(sink, width, height))
 398             return FALSE;
 399         sink->window_width  = width;
 400         sink->window_height = height;
 401     }
 402
 403     if (sink->window &&
 404         gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window)) == xid)
 405         return TRUE;
 406
 407     if (sink->window) {
 408         g_object_unref(sink->window);
 409         sink->window = NULL;
 410     }
 411
 412 #if USE_VAAPISINK_GLX
 413     if (sink->use_glx)
 414         sink->window = gst_vaapi_window_glx_new_with_xid(sink->display, xid);
 415     else
 416 #endif
 417         sink->window = gst_vaapi_window_x11_new_with_xid(sink->display, xid);
 418     return sink->window != NULL;
 419 }
 420
 421 static gboolean
 422 gst_vaapisink_start(GstBaseSink *base_sink)
 423 {
 424     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 425
 426     return gst_vaapi_ensure_display(sink, &sink->display);
 427 }
 428
 429 static gboolean
 430 gst_vaapisink_stop(GstBaseSink *base_sink)
 431 {
 432     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 433
 434     if (sink->window) {
 435         g_object_unref(sink->window);
 436         sink->window = NULL;
 437     }
 438
 439     if (sink->display) {
 440         g_object_unref(sink->display);
 441         sink->display = NULL;
 442     }
 443     return TRUE;
 444 }
 445
 446 static gboolean
 447 gst_vaapisink_set_caps(GstBaseSink *base_sink, GstCaps *caps)
 448 {
 449     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 450     GstStructure * const structure = gst_caps_get_structure(caps, 0);
 451     guint win_width, win_height, display_width, display_height;
 452     gint video_width, video_height, video_par_n = 1, video_par_d = 1;
 453
 454     if (!structure)
 455         return FALSE;
 456     if (!gst_structure_get_int(structure, "width",  &video_width))
 457         return FALSE;
 458     if (!gst_structure_get_int(structure, "height", &video_height))
 459         return FALSE;
 460     sink->video_width  = video_width;
 461     sink->video_height = video_height;
 462
 463     gst_video_parse_caps_pixel_aspect_ratio(caps, &video_par_n, &video_par_d);
 464     sink->video_par_n  = video_par_n;
 465     sink->video_par_d  = video_par_d;
 466     GST_DEBUG("video pixel-aspect-ratio %d/%d", video_par_n, video_par_d);
 467
 468     gst_caps_replace(&sink->caps, caps);
 469
 470     if (!gst_vaapi_ensure_display(sink, &sink->display))
 471         return FALSE;
 472
 473     gst_vaapi_display_get_size(sink->display, &display_width, &display_height);
 474     if (sink->foreign_window) {
 475         win_width  = sink->window_width;
 476         win_height = sink->window_height;
 477     }
 478     else if (sink->fullscreen ||
 479              video_width > display_width || video_height > display_height) {
 480         win_width  = display_width;
 481         win_height = display_height;
 482     }
 483     else {
 484         win_width  = video_width;
 485         win_height = video_height;
 486     }
 487
 488     if (sink->window) {
 489         if (!sink->foreign_window || sink->fullscreen)
 490             gst_vaapi_window_set_size(sink->window, win_width, win_height);
 491     }
 492     else {
 493         gst_vaapi_display_lock(sink->display);
 494         gst_x_overlay_prepare_xwindow_id(GST_X_OVERLAY(sink));
 495         gst_vaapi_display_unlock(sink->display);
 496         if (sink->window)
 497             return TRUE;
 498         if (!gst_vaapisink_ensure_window(sink, win_width, win_height))
 499             return FALSE;
 500         gst_vaapi_window_set_fullscreen(sink->window, sink->fullscreen);
 501         gst_vaapi_window_show(sink->window);
 502         gst_vaapi_window_get_size(sink->window, &win_width, &win_height);
 503     }
 504     sink->window_width  = win_width;
 505     sink->window_height = win_height;
 506     GST_DEBUG("window size %ux%u", win_width, win_height);
 507
 508     return gst_vaapisink_ensure_render_rect(sink, win_width, win_height);
 509 }
 510
 511 #if USE_VAAPISINK_GLX
 512 static void
 513 render_background(GstVaapiSink *sink)
 514 {
 515     /* Original code from Mirco Muller (MacSlow):
 516        <http://cgit.freedesktop.org/~macslow/gl-gst-player/> */
 517     GLfloat fStartX = 0.0f;
 518     GLfloat fStartY = 0.0f;
 519     GLfloat fWidth  = (GLfloat)sink->window_width;
 520     GLfloat fHeight = (GLfloat)sink->window_height;
 521
 522     glClear(GL_COLOR_BUFFER_BIT);
 523     glBegin(GL_QUADS);
 524     {
 525         /* top third, darker grey to white */
 526         glColor3f(0.85f, 0.85f, 0.85f);
 527         glVertex3f(fStartX, fStartY, 0.0f);
 528         glColor3f(0.85f, 0.85f, 0.85f);
 529         glVertex3f(fStartX + fWidth, fStartY, 0.0f);
 530         glColor3f(1.0f, 1.0f, 1.0f);
 531         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 532         glColor3f(1.0f, 1.0f, 1.0f);
 533         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 534
 535         /* middle third, just plain white */
 536         glColor3f(1.0f, 1.0f, 1.0f);
 537         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 538         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 539         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 540         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 541
 542         /* bottom third, white to lighter grey */
 543         glColor3f(1.0f, 1.0f, 1.0f);
 544         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 545         glColor3f(1.0f, 1.0f, 1.0f);
 546         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 547         glColor3f(0.62f, 0.66f, 0.69f);
 548         glVertex3f(fStartX + fWidth, fStartY + fHeight, 0.0f);
 549         glColor3f(0.62f, 0.66f, 0.69f);
 550         glVertex3f(fStartX, fStartY + fHeight, 0.0f);
 551     }
 552     glEnd();
 553 }
 554
 555 static void
 556 render_frame(GstVaapiSink *sink)
 557 {
 558     const guint x1 = sink->display_rect.x;
 559     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 560     const guint y1 = sink->display_rect.y;
 561     const guint y2 = sink->display_rect.y + sink->display_rect.height;
 562
 563     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 564     glBegin(GL_QUADS);
 565     {
 566         glTexCoord2f(0.0f, 0.0f); glVertex2i(x1, y1);
 567         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y2);
 568         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y2);
 569         glTexCoord2f(1.0f, 0.0f); glVertex2i(x2, y1);
 570     }
 571     glEnd();
 572 }
 573
 574 static void
 575 render_reflection(GstVaapiSink *sink)
 576 {
 577     const guint x1 = sink->display_rect.x;
 578     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 579     const guint y1 = sink->display_rect.y;
 580     const guint rh = sink->display_rect.height / 5;
 581     GLfloat     ry = 1.0f - (GLfloat)rh / (GLfloat)sink->display_rect.height;
 582
 583     glBegin(GL_QUADS);
 584     {
 585         glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 586         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y1);
 587         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y1);
 588
 589         glColor4f(1.0f, 1.0f, 1.0f, 0.0f);
 590         glTexCoord2f(1.0f, ry); glVertex2i(x2, y1 + rh);
 591         glTexCoord2f(0.0f, ry); glVertex2i(x1, y1 + rh);
 592     }
 593     glEnd();
 594 }
 595
 596 static gboolean
 597 gst_vaapisink_show_frame_glx(
 598     GstVaapiSink    *sink,
 599     GstVaapiSurface *surface,
 600     guint            flags
 601 )
 602 {
 603     GstVaapiWindowGLX * const window = GST_VAAPI_WINDOW_GLX(sink->window);
 604     GLenum target;
 605     GLuint texture;
 606
 607     gst_vaapi_window_glx_make_current(window);
 608     if (!sink->texture) {
 609         sink->texture = gst_vaapi_texture_new(
 610             sink->display,
 611             GL_TEXTURE_2D,
 612             GL_BGRA,
 613             sink->video_width,
 614             sink->video_height
 615         );
 616         if (!sink->texture)
 617             goto error_create_texture;
 618     }
 619     if (!gst_vaapi_texture_put_surface(sink->texture, surface, flags))
 620         goto error_transfer_surface;
 621
 622     target  = gst_vaapi_texture_get_target(sink->texture);
 623     texture = gst_vaapi_texture_get_id(sink->texture);
 624     if (target != GL_TEXTURE_2D || !texture)
 625         return FALSE;
 626
 627     if (sink->use_reflection)
 628         render_background(sink);
 629
 630     glEnable(target);
 631     glBindTexture(target, texture);
 632     {
 633         if (sink->use_reflection) {
 634             glPushMatrix();
 635             glRotatef(20.0f, 0.0f, 1.0f, 0.0f);
 636             glTranslatef(50.0f, 0.0f, 0.0f);
 637         }
 638         render_frame(sink);
 639         if (sink->use_reflection) {
 640             glPushMatrix();
 641             glTranslatef(0.0, (GLfloat)sink->display_rect.height + 5.0f, 0.0f);
 642             render_reflection(sink);
 643             glPopMatrix();
 644             glPopMatrix();
 645         }
 646     }
 647     glBindTexture(target, 0);
 648     glDisable(target);
 649     gst_vaapi_window_glx_swap_buffers(window);
 650     return TRUE;
 651
 652     /* ERRORS */
 653 error_create_texture:
 654     {
 655         GST_DEBUG("could not create VA/GLX texture");
 656         return FALSE;
 657     }
 658 error_transfer_surface:
 659     {
 660         GST_DEBUG("could not transfer VA surface to texture");
 661         return FALSE;
 662     }
 663 }
 664 #endif
 665
 666 static inline gboolean
 667 gst_vaapisink_show_frame_x11(
 668     GstVaapiSink    *sink,
 669     GstVaapiSurface *surface,
 670     guint            flags
 671 )
 672 {
 673     if (!gst_vaapi_window_put_surface(sink->window, surface,
 674                 NULL, &sink->display_rect, flags)) {
 675         GST_DEBUG("could not render VA surface");
 676         return FALSE;
 677     }
 678     return TRUE;
 679 }
 680
 681 static GstFlowReturn
 682 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer)
 683 {
 684     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 685     GstVaapiVideoBuffer * const vbuffer = GST_VAAPI_VIDEO_BUFFER(buffer);
 686     GstVaapiSurface *surface;
 687     guint flags;
 688     gboolean success;
 689     GstVideoOverlayComposition * const composition =
 690         gst_video_buffer_get_overlay_composition(buffer);
 691
 692     if (sink->display != gst_vaapi_video_buffer_get_display (vbuffer)) {
 693       if (sink->display)
 694         g_object_unref (sink->display);
 695       sink->display = g_object_ref (gst_vaapi_video_buffer_get_display (vbuffer));
 696     }
 697
 698     if (!sink->window)
 699         return GST_FLOW_UNEXPECTED;
 700
 701     surface = gst_vaapi_video_buffer_get_surface(vbuffer);
 702     if (!surface)
 703         return GST_FLOW_UNEXPECTED;
 704
 705     GST_DEBUG("render surface %" GST_VAAPI_ID_FORMAT,
 706               GST_VAAPI_ID_ARGS(gst_vaapi_surface_get_id(surface)));
 707
 708     flags = gst_vaapi_video_buffer_get_render_flags(vbuffer);
 709
 710     if (!gst_vaapi_surface_set_subpictures_from_composition(surface,
 711              composition, TRUE))
 712         GST_WARNING("could not update subtitles");
 713
 714 #if USE_VAAPISINK_GLX
 715     if (sink->use_glx)
 716         success = gst_vaapisink_show_frame_glx(sink, surface, flags);
 717     else
 718 #endif
 719         success = gst_vaapisink_show_frame_x11(sink, surface, flags);
 720     return success ? GST_FLOW_OK : GST_FLOW_UNEXPECTED;
 721 }
 722
 723 static gboolean
 724 gst_vaapisink_query(GstBaseSink *base_sink, GstQuery *query)
 725 {
 726     GstVaapiSink *sink = GST_VAAPISINK(base_sink);
 727     GST_DEBUG ("sharing display %p", sink->display);
 728     return gst_vaapi_reply_to_query (query, sink->display);
 729 }
 730
 731 static void
 732 gst_vaapisink_finalize(GObject *object)
 733 {
 734     gst_vaapisink_destroy(GST_VAAPISINK(object));
 735
 736     G_OBJECT_CLASS(parent_class)->finalize(object);
 737 }
 738
 739 static void
 740 gst_vaapisink_set_property(
 741     GObject      *object,
 742     guint         prop_id,
 743     const GValue *value,
 744     GParamSpec   *pspec
 745 )
 746 {
 747     GstVaapiSink * const sink = GST_VAAPISINK(object);
 748
 749     switch (prop_id) {
 750     case PROP_USE_GLX:
 751         sink->use_glx = g_value_get_boolean(value);
 752         break;
 753     case PROP_FULLSCREEN:
 754         sink->fullscreen = g_value_get_boolean(value);
 755         break;
 756     case PROP_SYNCHRONOUS:
 757         sink->synchronous = g_value_get_boolean(value);
 758         break;
 759     case PROP_USE_REFLECTION:
 760         sink->use_reflection = g_value_get_boolean(value);
 761         break;
 762     default:
 763         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
 764         break;
 765     }
 766 }
 767
 768 static void
 769 gst_vaapisink_get_property(
 770     GObject    *object,
 771     guint       prop_id,
 772     GValue     *value,
 773     GParamSpec *pspec
 774 )
 775 {
 776     GstVaapiSink * const sink = GST_VAAPISINK(object);
 777
 778     switch (prop_id) {
 779     case PROP_USE_GLX:
 780         g_value_set_boolean(value, sink->use_glx);
 781         break;
 782     case PROP_FULLSCREEN:
 783         g_value_set_boolean(value, sink->fullscreen);
 784         break;
 785     case PROP_SYNCHRONOUS:
 786         g_value_set_boolean(value, sink->synchronous);
 787         break;
 788     case PROP_USE_REFLECTION:
 789         g_value_set_boolean(value, sink->use_reflection);
 790         break;
 791     default:
 792         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
 793         break;
 794     }
 795 }
 796
 797 static void
 798 gst_vaapisink_base_init(gpointer klass)
 799 {
 800     GstElementClass * const element_class = GST_ELEMENT_CLASS(klass);
 801     GstPadTemplate *pad_template;
 802
 803     gst_element_class_set_details(element_class, &gst_vaapisink_details);
 804
 805     pad_template = gst_static_pad_template_get(&gst_vaapisink_sink_factory);
 806     gst_element_class_add_pad_template(element_class, pad_template);
 807     gst_object_unref(pad_template);
 808 }
 809
 810 static void
 811 gst_vaapisink_class_init(GstVaapiSinkClass *klass)
 812 {
 813     GObjectClass * const     object_class   = G_OBJECT_CLASS(klass);
 814     GstBaseSinkClass * const basesink_class = GST_BASE_SINK_CLASS(klass);
 815
 816     GST_DEBUG_CATEGORY_INIT(gst_debug_vaapisink,
 817                             GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
 818
 819     object_class->finalize       = gst_vaapisink_finalize;
 820     object_class->set_property   = gst_vaapisink_set_property;
 821     object_class->get_property   = gst_vaapisink_get_property;
 822
 823     basesink_class->start        = gst_vaapisink_start;
 824     basesink_class->stop         = gst_vaapisink_stop;
 825     basesink_class->set_caps     = gst_vaapisink_set_caps;
 826     basesink_class->preroll      = gst_vaapisink_show_frame;
 827     basesink_class->render       = gst_vaapisink_show_frame;
 828     basesink_class->query        = gst_vaapisink_query;
 829
 830 #if USE_VAAPISINK_GLX
 831     g_object_class_install_property
 832         (object_class,
 833          PROP_USE_GLX,
 834          g_param_spec_boolean("use-glx",
 835                               "GLX rendering",
 836                               "Enables GLX rendering",
 837                               TRUE,
 838                               G_PARAM_READWRITE));
 839
 840     g_object_class_install_property
 841         (object_class,
 842          PROP_USE_REFLECTION,
 843          g_param_spec_boolean("use-reflection",
 844                               "Reflection effect",
 845                               "Enables OpenGL reflection effect",
 846                               FALSE,
 847                               G_PARAM_READWRITE));
 848 #endif
 849
 850     g_object_class_install_property
 851         (object_class,
 852          PROP_FULLSCREEN,
 853          g_param_spec_boolean("fullscreen",
 854                               "Fullscreen",
 855                               "Requests window in fullscreen state",
 856                               FALSE,
 857                               G_PARAM_READWRITE));
 858
 859     /**
 860      * GstVaapiSink:synchronous:
 861      *
 862      * When enabled, runs the X display in synchronous mode. Note that
 863      * this is used only for debugging.
 864      */
 865     g_object_class_install_property
 866         (object_class,
 867          PROP_SYNCHRONOUS,
 868          g_param_spec_boolean("synchronous",
 869                               "Synchronous mode",
 870                               "Toggles X display synchronous mode",
 871                               FALSE,
 872                               G_PARAM_READWRITE));
 873 }
 874
 875 static void
 876 gst_vaapisink_init(GstVaapiSink *sink, GstVaapiSinkClass *klass)
 877 {
 878     sink->caps           = NULL;
 879     sink->display        = NULL;
 880     sink->window         = NULL;
 881     sink->window_width   = 0;
 882     sink->window_height  = 0;
 883     sink->texture        = NULL;
 884     sink->video_width    = 0;
 885     sink->video_height   = 0;
 886     sink->video_par_n    = 1;
 887     sink->video_par_d    = 1;
 888     sink->foreign_window = FALSE;
 889     sink->fullscreen     = FALSE;
 890     sink->synchronous    = FALSE;
 891     sink->use_glx        = USE_VAAPISINK_GLX;
 892     sink->use_reflection = FALSE;
 893 }