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