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/video/video.h>
  35 #include <gst/video/videocontext.h>
  36 #include <gst/vaapi/gstvaapivideobuffer.h>
  37 #include <gst/vaapi/gstvaapivideosink.h>
  38 #include <gst/vaapi/gstvaapidisplay_x11.h>
  39 #include <gst/vaapi/gstvaapiwindow_x11.h>
  40 #if USE_GLX
  41 # include <gst/vaapi/gstvaapidisplay_glx.h>
  42 # include <gst/vaapi/gstvaapiwindow_glx.h>
  43 #endif
  44
  45 /* Supported interfaces */
  46 #include <gst/interfaces/xoverlay.h>
  47
  48 #include "gstvaapisink.h"
  49 #include "gstvaapipluginutil.h"
  50
  51 #define GST_PLUGIN_NAME "vaapisink"
  52 #define GST_PLUGIN_DESC "A VA-API based videosink"
  53
  54 GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapisink);
  55 #define GST_CAT_DEFAULT gst_debug_vaapisink
  56
  57 /* ElementFactory information */
  58 static const GstElementDetails gst_vaapisink_details =
  59     GST_ELEMENT_DETAILS(
  60         "VA-API sink",
  61         "Sink/Video",
  62         GST_PLUGIN_DESC,
  63         "Gwenole Beauchesne <gwenole.beauchesne@intel.com>");
  64
  65 /* Default template */
  66 static GstStaticPadTemplate gst_vaapisink_sink_factory =
  67     GST_STATIC_PAD_TEMPLATE(
  68         "sink",
  69         GST_PAD_SINK,
  70         GST_PAD_ALWAYS,
  71         GST_STATIC_CAPS(GST_VAAPI_SURFACE_CAPS));
  72
  73 static void
  74 gst_vaapisink_implements_iface_init(GstImplementsInterfaceClass *iface);
  75
  76 static void
  77 gst_vaapisink_video_context_iface_init(GstVideoContextInterface *iface);
  78
  79 static void
  80 gst_vaapisink_xoverlay_iface_init(GstXOverlayClass *iface);
  81
  82 G_DEFINE_TYPE_WITH_CODE(
  83     GstVaapiSink,
  84     gst_vaapisink,
  85     GST_TYPE_VIDEO_SINK,
  86     G_IMPLEMENT_INTERFACE(GST_TYPE_IMPLEMENTS_INTERFACE,
  87                           gst_vaapisink_implements_iface_init);
  88     G_IMPLEMENT_INTERFACE(GST_TYPE_VIDEO_CONTEXT,
  89                           gst_vaapisink_video_context_iface_init);
  90     G_IMPLEMENT_INTERFACE(GST_TYPE_X_OVERLAY,
  91                           gst_vaapisink_xoverlay_iface_init));
  92
  93 enum {
  94     PROP_0,
  95
  96     PROP_DISPLAY_TYPE,
  97     PROP_FULLSCREEN,
  98     PROP_SYNCHRONOUS,
  99     PROP_USE_REFLECTION
 100 };
 101
 102 #define DEFAULT_DISPLAY_TYPE            GST_VAAPI_DISPLAY_TYPE_X11
 103
 104 /* GstImplementsInterface interface */
 105
 106 static gboolean
 107 gst_vaapisink_implements_interface_supported(
 108     GstImplementsInterface *iface,
 109     GType                   type
 110 )
 111 {
 112     return (type == GST_TYPE_VIDEO_CONTEXT ||
 113             type == GST_TYPE_X_OVERLAY);
 114 }
 115
 116 static void
 117 gst_vaapisink_implements_iface_init(GstImplementsInterfaceClass *iface)
 118 {
 119     iface->supported = gst_vaapisink_implements_interface_supported;
 120 }
 121
 122 /* GstVaapiVideoSink interface */
 123
 124 static void
 125 gst_vaapisink_set_video_context(GstVideoContext *context, const gchar *type,
 126     const GValue *value)
 127 {
 128   GstVaapiSink *sink = GST_VAAPISINK (context);
 129   gst_vaapi_set_display (type, value, &sink->display);
 130 }
 131
 132 static void
 133 gst_vaapisink_video_context_iface_init(GstVideoContextInterface *iface)
 134 {
 135     iface->set_context = gst_vaapisink_set_video_context;
 136 }
 137
 138 /* GstXOverlay interface */
 139
 140 static gboolean
 141 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id);
 142
 143 static GstFlowReturn
 144 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer);
 145
 146 static void
 147 gst_vaapisink_xoverlay_set_window_handle(GstXOverlay *overlay, guintptr window)
 148 {
 149     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 150
 151     /* Disable GLX rendering when vaapisink is using a foreign X
 152        window. It's pretty much useless */
 153     if (sink->display_type == GST_VAAPI_DISPLAY_TYPE_GLX)
 154         sink->display_type = GST_VAAPI_DISPLAY_TYPE_X11;
 155
 156     sink->foreign_window = TRUE;
 157     gst_vaapisink_ensure_window_xid(sink, window);
 158 }
 159
 160 static void
 161 gst_vaapisink_xoverlay_set_render_rectangle(
 162     GstXOverlay *overlay,
 163     gint         x,
 164     gint         y,
 165     gint         width,
 166     gint         height
 167 )
 168 {
 169     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 170     GstVaapiRectangle * const display_rect = &sink->display_rect;
 171
 172     display_rect->x      = x;
 173     display_rect->y      = y;
 174     display_rect->width  = width;
 175     display_rect->height = height;
 176
 177     GST_DEBUG("render rect (%d,%d):%ux%u",
 178               display_rect->x, display_rect->y,
 179               display_rect->width, display_rect->height);
 180 }
 181
 182 static void
 183 gst_vaapisink_xoverlay_expose(GstXOverlay *overlay)
 184 {
 185     GstBaseSink * const base_sink = GST_BASE_SINK(overlay);
 186     GstBuffer *buffer;
 187
 188     buffer = gst_base_sink_get_last_buffer(base_sink);
 189     if (buffer) {
 190         gst_vaapisink_show_frame(base_sink, buffer);
 191         gst_buffer_unref(buffer);
 192     }
 193 }
 194
 195 static void
 196 gst_vaapisink_xoverlay_iface_init(GstXOverlayClass *iface)
 197 {
 198     iface->set_window_handle    = gst_vaapisink_xoverlay_set_window_handle;
 199     iface->set_render_rectangle = gst_vaapisink_xoverlay_set_render_rectangle;
 200     iface->expose               = gst_vaapisink_xoverlay_expose;
 201 }
 202
 203 static void
 204 gst_vaapisink_destroy(GstVaapiSink *sink)
 205 {
 206     g_clear_object(&sink->texture);
 207     g_clear_object(&sink->display);
 208
 209     gst_caps_replace(&sink->caps, NULL);
 210 }
 211
 212 /* Checks whether a ConfigureNotify event is in the queue */
 213 typedef struct _ConfigureNotifyEventPendingArgs ConfigureNotifyEventPendingArgs;
 214 struct _ConfigureNotifyEventPendingArgs {
 215     Window      window;
 216     guint       width;
 217     guint       height;
 218     gboolean    match;
 219 };
 220
 221 static Bool
 222 configure_notify_event_pending_cb(Display *dpy, XEvent *xev, XPointer arg)
 223 {
 224     ConfigureNotifyEventPendingArgs * const args =
 225         (ConfigureNotifyEventPendingArgs *)arg;
 226
 227     if (xev->type == ConfigureNotify &&
 228         xev->xconfigure.window == args->window &&
 229         xev->xconfigure.width  == args->width  &&
 230         xev->xconfigure.height == args->height)
 231         args->match = TRUE;
 232
 233     /* XXX: this is a hack to traverse the whole queue because we
 234        can't use XPeekIfEvent() since it could block */
 235     return False;
 236 }
 237
 238 static gboolean
 239 configure_notify_event_pending(
 240     GstVaapiSink *sink,
 241     Window        window,
 242     guint         width,
 243     guint         height
 244 )
 245 {
 246     ConfigureNotifyEventPendingArgs args;
 247     XEvent xev;
 248
 249     args.window = window;
 250     args.width  = width;
 251     args.height = height;
 252     args.match  = FALSE;
 253
 254     /* XXX: don't use XPeekIfEvent() because it might block */
 255     XCheckIfEvent(
 256         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
 257         &xev,
 258         configure_notify_event_pending_cb, (XPointer)&args
 259     );
 260     return args.match;
 261 }
 262
 263 static inline gboolean
 264 gst_vaapisink_ensure_display(GstVaapiSink *sink)
 265 {
 266     return gst_vaapi_ensure_display(sink, &sink->display);
 267 }
 268
 269 static gboolean
 270 gst_vaapisink_ensure_render_rect(GstVaapiSink *sink, guint width, guint height)
 271 {
 272     GstVaapiRectangle * const display_rect = &sink->display_rect;
 273     guint num, den, display_par_n, display_par_d;
 274     gboolean success;
 275
 276     /* Return success if caps are not set yet */
 277     if (!sink->caps)
 278         return TRUE;
 279
 280     GST_DEBUG("ensure render rect within %ux%u bounds", width, height);
 281
 282     gst_vaapi_display_get_pixel_aspect_ratio(
 283         sink->display,
 284         &display_par_n, &display_par_d
 285     );
 286     GST_DEBUG("display pixel-aspect-ratio %d/%d",
 287               display_par_n, display_par_d);
 288
 289     success = gst_video_calculate_display_ratio(
 290         &num, &den,
 291         sink->video_width, sink->video_height,
 292         sink->video_par_n, sink->video_par_d,
 293         display_par_n, display_par_d
 294     );
 295     if (!success)
 296         return FALSE;
 297     GST_DEBUG("video size %dx%d, calculated ratio %d/%d",
 298               sink->video_width, sink->video_height, num, den);
 299
 300     display_rect->width = gst_util_uint64_scale_int(height, num, den);
 301     if (display_rect->width <= width) {
 302         GST_DEBUG("keeping window height");
 303         display_rect->height = height;
 304     }
 305     else {
 306         GST_DEBUG("keeping window width");
 307         display_rect->width  = width;
 308         display_rect->height =
 309             gst_util_uint64_scale_int(width, den, num);
 310     }
 311     GST_DEBUG("scaling video to %ux%u", display_rect->width, display_rect->height);
 312
 313     g_assert(display_rect->width  <= width);
 314     g_assert(display_rect->height <= height);
 315
 316     display_rect->x = (width  - display_rect->width)  / 2;
 317     display_rect->y = (height - display_rect->height) / 2;
 318
 319     GST_DEBUG("render rect (%d,%d):%ux%u",
 320               display_rect->x, display_rect->y,
 321               display_rect->width, display_rect->height);
 322     return TRUE;
 323 }
 324
 325 static inline gboolean
 326 gst_vaapisink_ensure_window(GstVaapiSink *sink, guint width, guint height)
 327 {
 328     GstVaapiDisplay * const display = sink->display;
 329
 330     if (!sink->window) {
 331         switch (sink->display_type) {
 332 #if USE_GLX
 333         case GST_VAAPI_DISPLAY_TYPE_GLX:
 334             sink->window = gst_vaapi_window_glx_new(display, width, height);
 335             break;
 336 #endif
 337         case GST_VAAPI_DISPLAY_TYPE_X11:
 338             sink->window = gst_vaapi_window_x11_new(display, width, height);
 339             break;
 340         default:
 341             GST_ERROR("unsupported display type %d", sink->display_type);
 342             return FALSE;
 343         }
 344         if (sink->window)
 345             gst_x_overlay_got_window_handle(
 346                 GST_X_OVERLAY(sink),
 347                 gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window))
 348             );
 349     }
 350     return sink->window != NULL;
 351 }
 352
 353 static gboolean
 354 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id)
 355 {
 356     Window rootwin;
 357     unsigned int width, height, border_width, depth;
 358     int x, y;
 359     XID xid = window_id;
 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     g_clear_object(&sink->window);
 386
 387     switch (sink->display_type) {
 388 #if USE_GLX
 389     case GST_VAAPI_DISPLAY_TYPE_GLX:
 390         sink->window = gst_vaapi_window_glx_new_with_xid(sink->display, xid);
 391         break;
 392 #endif
 393     case GST_VAAPI_DISPLAY_TYPE_X11:
 394         sink->window = gst_vaapi_window_x11_new_with_xid(sink->display, xid);
 395         break;
 396     default:
 397         GST_ERROR("unsupported display type %d", sink->display_type);
 398         return FALSE;
 399     }
 400     return sink->window != NULL;
 401 }
 402
 403 static gboolean
 404 gst_vaapisink_start(GstBaseSink *base_sink)
 405 {
 406     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 407
 408     return gst_vaapisink_ensure_display(sink);
 409 }
 410
 411 static gboolean
 412 gst_vaapisink_stop(GstBaseSink *base_sink)
 413 {
 414     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 415
 416     g_clear_object(&sink->window);
 417     g_clear_object(&sink->display);
 418
 419     return TRUE;
 420 }
 421
 422 static gboolean
 423 gst_vaapisink_set_caps(GstBaseSink *base_sink, GstCaps *caps)
 424 {
 425     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 426     GstStructure * const structure = gst_caps_get_structure(caps, 0);
 427     guint win_width, win_height, display_width, display_height;
 428     gint video_width, video_height, video_par_n = 1, video_par_d = 1;
 429
 430     if (!structure)
 431         return FALSE;
 432     if (!gst_structure_get_int(structure, "width",  &video_width))
 433         return FALSE;
 434     if (!gst_structure_get_int(structure, "height", &video_height))
 435         return FALSE;
 436     sink->video_width  = video_width;
 437     sink->video_height = video_height;
 438
 439     gst_video_parse_caps_pixel_aspect_ratio(caps, &video_par_n, &video_par_d);
 440     sink->video_par_n  = video_par_n;
 441     sink->video_par_d  = video_par_d;
 442     GST_DEBUG("video pixel-aspect-ratio %d/%d", video_par_n, video_par_d);
 443
 444     gst_caps_replace(&sink->caps, caps);
 445
 446     if (!gst_vaapisink_ensure_display(sink))
 447         return FALSE;
 448
 449     gst_vaapi_display_get_size(sink->display, &display_width, &display_height);
 450     if (sink->foreign_window) {
 451         win_width  = sink->window_width;
 452         win_height = sink->window_height;
 453     }
 454     else if (sink->fullscreen ||
 455              video_width > display_width || video_height > display_height) {
 456         win_width  = display_width;
 457         win_height = display_height;
 458     }
 459     else {
 460         win_width  = video_width;
 461         win_height = video_height;
 462     }
 463
 464     if (sink->window) {
 465         if (!sink->foreign_window || sink->fullscreen)
 466             gst_vaapi_window_set_size(sink->window, win_width, win_height);
 467     }
 468     else {
 469         gst_vaapi_display_lock(sink->display);
 470         gst_x_overlay_prepare_xwindow_id(GST_X_OVERLAY(sink));
 471         gst_vaapi_display_unlock(sink->display);
 472         if (sink->window)
 473             return TRUE;
 474         if (!gst_vaapisink_ensure_window(sink, win_width, win_height))
 475             return FALSE;
 476         gst_vaapi_window_set_fullscreen(sink->window, sink->fullscreen);
 477         gst_vaapi_window_show(sink->window);
 478         gst_vaapi_window_get_size(sink->window, &win_width, &win_height);
 479     }
 480     sink->window_width  = win_width;
 481     sink->window_height = win_height;
 482     GST_DEBUG("window size %ux%u", win_width, win_height);
 483
 484     return gst_vaapisink_ensure_render_rect(sink, win_width, win_height);
 485 }
 486
 487 #if USE_GLX
 488 static void
 489 render_background(GstVaapiSink *sink)
 490 {
 491     /* Original code from Mirco Muller (MacSlow):
 492        <http://cgit.freedesktop.org/~macslow/gl-gst-player/> */
 493     GLfloat fStartX = 0.0f;
 494     GLfloat fStartY = 0.0f;
 495     GLfloat fWidth  = (GLfloat)sink->window_width;
 496     GLfloat fHeight = (GLfloat)sink->window_height;
 497
 498     glClear(GL_COLOR_BUFFER_BIT);
 499     glBegin(GL_QUADS);
 500     {
 501         /* top third, darker grey to white */
 502         glColor3f(0.85f, 0.85f, 0.85f);
 503         glVertex3f(fStartX, fStartY, 0.0f);
 504         glColor3f(0.85f, 0.85f, 0.85f);
 505         glVertex3f(fStartX + fWidth, fStartY, 0.0f);
 506         glColor3f(1.0f, 1.0f, 1.0f);
 507         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 508         glColor3f(1.0f, 1.0f, 1.0f);
 509         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 510
 511         /* middle third, just plain white */
 512         glColor3f(1.0f, 1.0f, 1.0f);
 513         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 514         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 515         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 516         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 517
 518         /* bottom third, white to lighter grey */
 519         glColor3f(1.0f, 1.0f, 1.0f);
 520         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 521         glColor3f(1.0f, 1.0f, 1.0f);
 522         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 523         glColor3f(0.62f, 0.66f, 0.69f);
 524         glVertex3f(fStartX + fWidth, fStartY + fHeight, 0.0f);
 525         glColor3f(0.62f, 0.66f, 0.69f);
 526         glVertex3f(fStartX, fStartY + fHeight, 0.0f);
 527     }
 528     glEnd();
 529 }
 530
 531 static void
 532 render_frame(GstVaapiSink *sink)
 533 {
 534     const guint x1 = sink->display_rect.x;
 535     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 536     const guint y1 = sink->display_rect.y;
 537     const guint y2 = sink->display_rect.y + sink->display_rect.height;
 538
 539     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 540     glBegin(GL_QUADS);
 541     {
 542         glTexCoord2f(0.0f, 0.0f); glVertex2i(x1, y1);
 543         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y2);
 544         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y2);
 545         glTexCoord2f(1.0f, 0.0f); glVertex2i(x2, y1);
 546     }
 547     glEnd();
 548 }
 549
 550 static void
 551 render_reflection(GstVaapiSink *sink)
 552 {
 553     const guint x1 = sink->display_rect.x;
 554     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 555     const guint y1 = sink->display_rect.y;
 556     const guint rh = sink->display_rect.height / 5;
 557     GLfloat     ry = 1.0f - (GLfloat)rh / (GLfloat)sink->display_rect.height;
 558
 559     glBegin(GL_QUADS);
 560     {
 561         glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 562         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y1);
 563         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y1);
 564
 565         glColor4f(1.0f, 1.0f, 1.0f, 0.0f);
 566         glTexCoord2f(1.0f, ry); glVertex2i(x2, y1 + rh);
 567         glTexCoord2f(0.0f, ry); glVertex2i(x1, y1 + rh);
 568     }
 569     glEnd();
 570 }
 571
 572 static gboolean
 573 gst_vaapisink_show_frame_glx(
 574     GstVaapiSink    *sink,
 575     GstVaapiSurface *surface,
 576     guint            flags
 577 )
 578 {
 579     GstVaapiWindowGLX * const window = GST_VAAPI_WINDOW_GLX(sink->window);
 580     GLenum target;
 581     GLuint texture;
 582
 583     gst_vaapi_window_glx_make_current(window);
 584     if (!sink->texture) {
 585         sink->texture = gst_vaapi_texture_new(
 586             sink->display,
 587             GL_TEXTURE_2D,
 588             GL_BGRA,
 589             sink->video_width,
 590             sink->video_height
 591         );
 592         if (!sink->texture)
 593             goto error_create_texture;
 594     }
 595     if (!gst_vaapi_texture_put_surface(sink->texture, surface, flags))
 596         goto error_transfer_surface;
 597
 598     target  = gst_vaapi_texture_get_target(sink->texture);
 599     texture = gst_vaapi_texture_get_id(sink->texture);
 600     if (target != GL_TEXTURE_2D || !texture)
 601         return FALSE;
 602
 603     if (sink->use_reflection)
 604         render_background(sink);
 605
 606     glEnable(target);
 607     glBindTexture(target, texture);
 608     {
 609         if (sink->use_reflection) {
 610             glPushMatrix();
 611             glRotatef(20.0f, 0.0f, 1.0f, 0.0f);
 612             glTranslatef(50.0f, 0.0f, 0.0f);
 613         }
 614         render_frame(sink);
 615         if (sink->use_reflection) {
 616             glPushMatrix();
 617             glTranslatef(0.0, (GLfloat)sink->display_rect.height + 5.0f, 0.0f);
 618             render_reflection(sink);
 619             glPopMatrix();
 620             glPopMatrix();
 621         }
 622     }
 623     glBindTexture(target, 0);
 624     glDisable(target);
 625     gst_vaapi_window_glx_swap_buffers(window);
 626     return TRUE;
 627
 628     /* ERRORS */
 629 error_create_texture:
 630     {
 631         GST_DEBUG("could not create VA/GLX texture");
 632         return FALSE;
 633     }
 634 error_transfer_surface:
 635     {
 636         GST_DEBUG("could not transfer VA surface to texture");
 637         return FALSE;
 638     }
 639 }
 640 #endif
 641
 642 static inline gboolean
 643 gst_vaapisink_show_frame_x11(
 644     GstVaapiSink    *sink,
 645     GstVaapiSurface *surface,
 646     guint            flags
 647 )
 648 {
 649     if (!gst_vaapi_window_put_surface(sink->window, surface,
 650                 NULL, &sink->display_rect, flags)) {
 651         GST_DEBUG("could not render VA surface");
 652         return FALSE;
 653     }
 654     return TRUE;
 655 }
 656
 657 static GstFlowReturn
 658 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer)
 659 {
 660     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 661     GstVaapiVideoBuffer * const vbuffer = GST_VAAPI_VIDEO_BUFFER(buffer);
 662     GstVaapiSurface *surface;
 663     guint flags;
 664     gboolean success;
 665     GstVideoOverlayComposition * const composition =
 666         gst_video_buffer_get_overlay_composition(buffer);
 667
 668     if (sink->display != gst_vaapi_video_buffer_get_display (vbuffer)) {
 669       g_clear_object(&sink->display);
 670       sink->display = g_object_ref (gst_vaapi_video_buffer_get_display (vbuffer));
 671     }
 672
 673     if (!sink->window)
 674         return GST_FLOW_UNEXPECTED;
 675
 676     surface = gst_vaapi_video_buffer_get_surface(vbuffer);
 677     if (!surface)
 678         return GST_FLOW_UNEXPECTED;
 679
 680     GST_DEBUG("render surface %" GST_VAAPI_ID_FORMAT,
 681               GST_VAAPI_ID_ARGS(gst_vaapi_surface_get_id(surface)));
 682
 683     flags = gst_vaapi_video_buffer_get_render_flags(vbuffer);
 684
 685     if (!gst_vaapi_surface_set_subpictures_from_composition(surface,
 686              composition, TRUE))
 687         GST_WARNING("could not update subtitles");
 688
 689     switch (sink->display_type) {
 690 #if USE_GLX
 691     case GST_VAAPI_DISPLAY_TYPE_GLX:
 692         success = gst_vaapisink_show_frame_glx(sink, surface, flags);
 693         break;
 694 #endif
 695     case GST_VAAPI_DISPLAY_TYPE_X11:
 696         success = gst_vaapisink_show_frame_x11(sink, surface, flags);
 697         break;
 698     default:
 699         GST_ERROR("unsupported display type %d", sink->display_type);
 700         success = FALSE;
 701         break;
 702     }
 703     return success ? GST_FLOW_OK : GST_FLOW_UNEXPECTED;
 704 }
 705
 706 static gboolean
 707 gst_vaapisink_query(GstBaseSink *base_sink, GstQuery *query)
 708 {
 709     GstVaapiSink *sink = GST_VAAPISINK(base_sink);
 710     GST_DEBUG ("sharing display %p", sink->display);
 711     return gst_vaapi_reply_to_query (query, sink->display);
 712 }
 713
 714 static void
 715 gst_vaapisink_finalize(GObject *object)
 716 {
 717     gst_vaapisink_destroy(GST_VAAPISINK(object));
 718
 719     G_OBJECT_CLASS(gst_vaapisink_parent_class)->finalize(object);
 720 }
 721
 722 static void
 723 gst_vaapisink_set_property(
 724     GObject      *object,
 725     guint         prop_id,
 726     const GValue *value,
 727     GParamSpec   *pspec
 728 )
 729 {
 730     GstVaapiSink * const sink = GST_VAAPISINK(object);
 731
 732     switch (prop_id) {
 733     case PROP_DISPLAY_TYPE:
 734         sink->display_type = g_value_get_enum(value);
 735         break;
 736     case PROP_FULLSCREEN:
 737         sink->fullscreen = g_value_get_boolean(value);
 738         break;
 739     case PROP_SYNCHRONOUS:
 740         sink->synchronous = g_value_get_boolean(value);
 741         break;
 742     case PROP_USE_REFLECTION:
 743         sink->use_reflection = g_value_get_boolean(value);
 744         break;
 745     default:
 746         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
 747         break;
 748     }
 749 }
 750
 751 static void
 752 gst_vaapisink_get_property(
 753     GObject    *object,
 754     guint       prop_id,
 755     GValue     *value,
 756     GParamSpec *pspec
 757 )
 758 {
 759     GstVaapiSink * const sink = GST_VAAPISINK(object);
 760
 761     switch (prop_id) {
 762     case PROP_DISPLAY_TYPE:
 763         g_value_set_enum(value, sink->display_type);
 764         break;
 765     case PROP_FULLSCREEN:
 766         g_value_set_boolean(value, sink->fullscreen);
 767         break;
 768     case PROP_SYNCHRONOUS:
 769         g_value_set_boolean(value, sink->synchronous);
 770         break;
 771     case PROP_USE_REFLECTION:
 772         g_value_set_boolean(value, sink->use_reflection);
 773         break;
 774     default:
 775         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
 776         break;
 777     }
 778 }
 779
 780 static void
 781 gst_vaapisink_class_init(GstVaapiSinkClass *klass)
 782 {
 783     GObjectClass * const     object_class   = G_OBJECT_CLASS(klass);
 784     GstElementClass * const  element_class  = GST_ELEMENT_CLASS(klass);
 785     GstBaseSinkClass * const basesink_class = GST_BASE_SINK_CLASS(klass);
 786     GstPadTemplate *pad_template;
 787
 788     GST_DEBUG_CATEGORY_INIT(gst_debug_vaapisink,
 789                             GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
 790
 791     object_class->finalize       = gst_vaapisink_finalize;
 792     object_class->set_property   = gst_vaapisink_set_property;
 793     object_class->get_property   = gst_vaapisink_get_property;
 794
 795     basesink_class->start        = gst_vaapisink_start;
 796     basesink_class->stop         = gst_vaapisink_stop;
 797     basesink_class->set_caps     = gst_vaapisink_set_caps;
 798     basesink_class->preroll      = gst_vaapisink_show_frame;
 799     basesink_class->render       = gst_vaapisink_show_frame;
 800     basesink_class->query        = gst_vaapisink_query;
 801
 802     gst_element_class_set_details_simple(
 803         element_class,
 804         gst_vaapisink_details.longname,
 805         gst_vaapisink_details.klass,
 806         gst_vaapisink_details.description,
 807         gst_vaapisink_details.author
 808     );
 809
 810     pad_template = gst_static_pad_template_get(&gst_vaapisink_sink_factory);
 811     gst_element_class_add_pad_template(element_class, pad_template);
 812     gst_object_unref(pad_template);
 813
 814     g_object_class_install_property
 815         (object_class,
 816          PROP_DISPLAY_TYPE,
 817          g_param_spec_enum("display",
 818                            "display type",
 819                            "display type to use",
 820                            GST_VAAPI_TYPE_DISPLAY_TYPE,
 821                            GST_VAAPI_DISPLAY_TYPE_AUTO,
 822                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
 823
 824 #if USE_GLX
 825     g_object_class_install_property
 826         (object_class,
 827          PROP_USE_REFLECTION,
 828          g_param_spec_boolean("use-reflection",
 829                               "Reflection effect",
 830                               "Enables OpenGL reflection effect",
 831                               FALSE,
 832                               G_PARAM_READWRITE));
 833 #endif
 834
 835     g_object_class_install_property
 836         (object_class,
 837          PROP_FULLSCREEN,
 838          g_param_spec_boolean("fullscreen",
 839                               "Fullscreen",
 840                               "Requests window in fullscreen state",
 841                               FALSE,
 842                               G_PARAM_READWRITE));
 843
 844     /**
 845      * GstVaapiSink:synchronous:
 846      *
 847      * When enabled, runs the X display in synchronous mode. Note that
 848      * this is used only for debugging.
 849      */
 850     g_object_class_install_property
 851         (object_class,
 852          PROP_SYNCHRONOUS,
 853          g_param_spec_boolean("synchronous",
 854                               "Synchronous mode",
 855                               "Toggles X display synchronous mode",
 856                               FALSE,
 857                               G_PARAM_READWRITE));
 858 }
 859
 860 static void
 861 gst_vaapisink_init(GstVaapiSink *sink)
 862 {
 863     sink->caps           = NULL;
 864     sink->display        = NULL;
 865     sink->window         = NULL;
 866     sink->window_width   = 0;
 867     sink->window_height  = 0;
 868     sink->texture        = NULL;
 869     sink->video_width    = 0;
 870     sink->video_height   = 0;
 871     sink->video_par_n    = 1;
 872     sink->video_par_d    = 1;
 873     sink->foreign_window = FALSE;
 874     sink->fullscreen     = FALSE;
 875     sink->synchronous    = FALSE;
 876     sink->display_type   = DEFAULT_DISPLAY_TYPE;
 877     sink->use_reflection = FALSE;
 878 }