gst/vaapi/gstvaapisink.c

   1 /*
   2  *  gstvaapisink.c - VA-API video sink
   3  *
   4  *  Copyright (C) 2010-2011 Splitted-Desktop Systems
   5  *    Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
   6  *  Copyright (C) 2011-2014 Intel Corporation
   7  *    Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
   8  *
   9  *  This library is free software; you can redistribute it and/or
  10  *  modify it under the terms of the GNU Lesser General Public License
  11  *  as published by the Free Software Foundation; either version 2.1
  12  *  of the License, or (at your option) any later version.
  13  *
  14  *  This library is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  *  Lesser General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU Lesser General Public
  20  *  License along with this library; if not, write to the Free
  21  *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22  *  Boston, MA 02110-1301 USA
  23  */
  24
  25 /**
  26  * SECTION:gstvaapisink
  27  * @short_description: A VA-API based videosink
  28  *
  29  * vaapisink renders video frames to a drawable (X #Window) on a local
  30  * display using the Video Acceleration (VA) API. The element will
  31  * create its own internal window and render into it.
  32  */
  33
  34 #include "gst/vaapi/sysdeps.h"
  35 #include <gst/gst.h>
  36 #include <gst/video/video.h>
  37
  38 #include <gst/vaapi/gstvaapivalue.h>
  39 #if USE_DRM
  40 # include <gst/vaapi/gstvaapidisplay_drm.h>
  41 #endif
  42 #if USE_X11
  43 # include <gst/vaapi/gstvaapidisplay_x11.h>
  44 # include <gst/vaapi/gstvaapiwindow_x11.h>
  45 #endif
  46 #if USE_GLX
  47 # include <gst/vaapi/gstvaapidisplay_glx.h>
  48 # include <gst/vaapi/gstvaapiwindow_glx.h>
  49 #endif
  50 #if USE_WAYLAND
  51 # include <gst/vaapi/gstvaapidisplay_wayland.h>
  52 # include <gst/vaapi/gstvaapiwindow_wayland.h>
  53 #endif
  54
  55 /* Supported interfaces */
  56 #if GST_CHECK_VERSION(1,0,0)
  57 # include <gst/video/videooverlay.h>
  58 #else
  59 # include <gst/interfaces/xoverlay.h>
  60
  61 # define GST_TYPE_VIDEO_OVERLAY         GST_TYPE_X_OVERLAY
  62 # define GST_VIDEO_OVERLAY              GST_X_OVERLAY
  63 # define GstVideoOverlay                GstXOverlay
  64 # define GstVideoOverlayInterface       GstXOverlayClass
  65
  66 # define gst_video_overlay_prepare_window_handle(sink) \
  67     gst_x_overlay_prepare_xwindow_id(sink)
  68 # define gst_video_overlay_got_window_handle(sink, window_handle) \
  69     gst_x_overlay_got_window_handle(sink, window_handle)
  70 #endif
  71
  72 #include "gstvaapisink.h"
  73 #include "gstvaapipluginutil.h"
  74 #include "gstvaapivideometa.h"
  75 #if GST_CHECK_VERSION(1,0,0)
  76 #include "gstvaapivideobufferpool.h"
  77 #include "gstvaapivideomemory.h"
  78 #endif
  79
  80 #define GST_PLUGIN_NAME "vaapisink"
  81 #define GST_PLUGIN_DESC "A VA-API based videosink"
  82
  83 GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapisink);
  84 #define GST_CAT_DEFAULT gst_debug_vaapisink
  85
  86 /* Default template */
  87 static const char gst_vaapisink_sink_caps_str[] =
  88 #if GST_CHECK_VERSION(1,1,0)
  89     GST_VIDEO_CAPS_MAKE_WITH_FEATURES(
  90         GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE, "{ ENCODED, NV12, I420, YV12 }") ";"
  91     GST_VIDEO_CAPS_MAKE(GST_VIDEO_FORMATS_ALL);
  92 #else
  93 #if GST_CHECK_VERSION(1,0,0)
  94     GST_VIDEO_CAPS_MAKE(GST_VIDEO_FORMATS_ALL) "; "
  95 #else
  96     "video/x-raw-yuv, "
  97     "width  = (int) [ 1, MAX ], "
  98     "height = (int) [ 1, MAX ]; "
  99 #endif
 100     GST_VAAPI_SURFACE_CAPS;
 101 #endif
 102
 103 static GstStaticPadTemplate gst_vaapisink_sink_factory =
 104     GST_STATIC_PAD_TEMPLATE(
 105         "sink",
 106         GST_PAD_SINK,
 107         GST_PAD_ALWAYS,
 108         GST_STATIC_CAPS(gst_vaapisink_sink_caps_str));
 109
 110 static gboolean
 111 gst_vaapisink_has_interface(GstVaapiPluginBase *plugin, GType type)
 112 {
 113     return type == GST_TYPE_VIDEO_OVERLAY;
 114 }
 115
 116 static void
 117 gst_vaapisink_video_overlay_iface_init(GstVideoOverlayInterface *iface);
 118
 119 G_DEFINE_TYPE_WITH_CODE(
 120     GstVaapiSink,
 121     gst_vaapisink,
 122     GST_TYPE_VIDEO_SINK,
 123     GST_VAAPI_PLUGIN_BASE_INIT_INTERFACES
 124     G_IMPLEMENT_INTERFACE(GST_TYPE_VIDEO_OVERLAY,
 125                           gst_vaapisink_video_overlay_iface_init))
 126
 127 enum {
 128     PROP_0,
 129
 130     PROP_DISPLAY_TYPE,
 131     PROP_DISPLAY_NAME,
 132     PROP_FULLSCREEN,
 133     PROP_SYNCHRONOUS,
 134     PROP_USE_GLX,
 135     PROP_USE_REFLECTION,
 136     PROP_ROTATION,
 137     PROP_FORCE_ASPECT_RATIO,
 138 };
 139
 140 #define DEFAULT_DISPLAY_TYPE            GST_VAAPI_DISPLAY_TYPE_ANY
 141 #define DEFAULT_ROTATION                GST_VAAPI_ROTATION_0
 142
 143 static inline gboolean
 144 gst_vaapisink_ensure_display(GstVaapiSink *sink);
 145
 146 /* GstVideoOverlay interface */
 147
 148 #if USE_X11
 149 static gboolean
 150 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id);
 151 #endif
 152
 153 static GstFlowReturn
 154 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer);
 155
 156 static void
 157 gst_vaapisink_video_overlay_set_window_handle(GstVideoOverlay *overlay,
 158     guintptr window)
 159 {
 160     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 161     GstVaapiDisplayType display_type;
 162
 163     if (!gst_vaapisink_ensure_display(sink))
 164         return;
 165     display_type = GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink);
 166
 167     /* Disable GLX rendering when vaapisink is using a foreign X
 168        window. It's pretty much useless */
 169     if (display_type == GST_VAAPI_DISPLAY_TYPE_GLX) {
 170         display_type = GST_VAAPI_DISPLAY_TYPE_X11;
 171         gst_vaapi_plugin_base_set_display_type(GST_VAAPI_PLUGIN_BASE(sink),
 172             display_type);
 173     }
 174
 175     sink->foreign_window = TRUE;
 176
 177     switch (display_type) {
 178 #if USE_X11
 179     case GST_VAAPI_DISPLAY_TYPE_X11:
 180         gst_vaapisink_ensure_window_xid(sink, window);
 181         break;
 182 #endif
 183     default:
 184         break;
 185     }
 186 }
 187
 188 static void
 189 gst_vaapisink_video_overlay_set_render_rectangle(
 190     GstVideoOverlay *overlay,
 191     gint         x,
 192     gint         y,
 193     gint         width,
 194     gint         height
 195 )
 196 {
 197     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 198     GstVaapiRectangle * const display_rect = &sink->display_rect;
 199
 200     display_rect->x      = x;
 201     display_rect->y      = y;
 202     display_rect->width  = width;
 203     display_rect->height = height;
 204
 205     GST_DEBUG("render rect (%d,%d):%ux%u",
 206               display_rect->x, display_rect->y,
 207               display_rect->width, display_rect->height);
 208 }
 209
 210 static void
 211 gst_vaapisink_video_overlay_expose(GstVideoOverlay *overlay)
 212 {
 213     GstVaapiSink * const sink = GST_VAAPISINK(overlay);
 214
 215     if (sink->video_buffer)
 216         gst_vaapisink_show_frame(GST_BASE_SINK_CAST(sink),
 217             gst_buffer_ref(sink->video_buffer));
 218 }
 219
 220 static void
 221 gst_vaapisink_video_overlay_iface_init(GstVideoOverlayInterface *iface)
 222 {
 223     iface->set_window_handle    = gst_vaapisink_video_overlay_set_window_handle;
 224     iface->set_render_rectangle = gst_vaapisink_video_overlay_set_render_rectangle;
 225     iface->expose               = gst_vaapisink_video_overlay_expose;
 226 }
 227
 228 static void
 229 gst_vaapisink_destroy(GstVaapiSink *sink)
 230 {
 231     gst_buffer_replace(&sink->video_buffer, NULL);
 232 #if USE_GLX
 233     gst_vaapi_texture_replace(&sink->texture, NULL);
 234 #endif
 235     gst_caps_replace(&sink->caps, NULL);
 236 }
 237
 238 #if USE_X11
 239 /* Checks whether a ConfigureNotify event is in the queue */
 240 typedef struct _ConfigureNotifyEventPendingArgs ConfigureNotifyEventPendingArgs;
 241 struct _ConfigureNotifyEventPendingArgs {
 242     Window      window;
 243     guint       width;
 244     guint       height;
 245     gboolean    match;
 246 };
 247
 248 static Bool
 249 configure_notify_event_pending_cb(Display *dpy, XEvent *xev, XPointer arg)
 250 {
 251     ConfigureNotifyEventPendingArgs * const args =
 252         (ConfigureNotifyEventPendingArgs *)arg;
 253
 254     if (xev->type == ConfigureNotify &&
 255         xev->xconfigure.window == args->window &&
 256         xev->xconfigure.width  == args->width  &&
 257         xev->xconfigure.height == args->height)
 258         args->match = TRUE;
 259
 260     /* XXX: this is a hack to traverse the whole queue because we
 261        can't use XPeekIfEvent() since it could block */
 262     return False;
 263 }
 264
 265 static gboolean
 266 configure_notify_event_pending(
 267     GstVaapiSink *sink,
 268     Window        window,
 269     guint         width,
 270     guint         height
 271 )
 272 {
 273     GstVaapiDisplayX11 * const display =
 274         GST_VAAPI_DISPLAY_X11(GST_VAAPI_PLUGIN_BASE_DISPLAY(sink));
 275     ConfigureNotifyEventPendingArgs args;
 276     XEvent xev;
 277
 278     args.window = window;
 279     args.width  = width;
 280     args.height = height;
 281     args.match  = FALSE;
 282
 283     /* XXX: don't use XPeekIfEvent() because it might block */
 284     XCheckIfEvent(
 285         gst_vaapi_display_x11_get_display(display),
 286         &xev,
 287         configure_notify_event_pending_cb, (XPointer)&args
 288     );
 289     return args.match;
 290 }
 291 #endif
 292
 293 static const gchar *
 294 get_display_type_name(GstVaapiDisplayType display_type)
 295 {
 296     gpointer const klass = g_type_class_peek(GST_VAAPI_TYPE_DISPLAY_TYPE);
 297     GEnumValue * const e = g_enum_get_value(klass, display_type);
 298
 299     if (e)
 300         return e->value_name;
 301     return "<unknown-type>";
 302 }
 303
 304 static inline gboolean
 305 gst_vaapisink_ensure_display(GstVaapiSink *sink)
 306 {
 307     return gst_vaapi_plugin_base_ensure_display(GST_VAAPI_PLUGIN_BASE(sink));
 308 }
 309
 310 static void
 311 gst_vaapisink_display_changed(GstVaapiPluginBase *plugin)
 312 {
 313     GstVaapiSink * const sink = GST_VAAPISINK(plugin);
 314     GstVaapiRenderMode render_mode;
 315
 316     GST_INFO("created %s %p", get_display_type_name(plugin->display_type),
 317              plugin->display);
 318
 319     sink->use_overlay =
 320         gst_vaapi_display_get_render_mode(plugin->display, &render_mode) &&
 321         render_mode == GST_VAAPI_RENDER_MODE_OVERLAY;
 322     GST_DEBUG("use %s rendering mode",
 323               sink->use_overlay ? "overlay" : "texture");
 324
 325     sink->use_rotation = gst_vaapi_display_has_property(plugin->display,
 326         GST_VAAPI_DISPLAY_PROP_ROTATION);
 327 }
 328
 329 static gboolean
 330 gst_vaapisink_ensure_uploader(GstVaapiSink *sink)
 331 {
 332     if (!gst_vaapisink_ensure_display(sink))
 333         return FALSE;
 334     if (!gst_vaapi_plugin_base_ensure_uploader(GST_VAAPI_PLUGIN_BASE(sink)))
 335         return FALSE;
 336     return TRUE;
 337 }
 338
 339 static gboolean
 340 gst_vaapisink_ensure_render_rect(GstVaapiSink *sink, guint width, guint height)
 341 {
 342     GstVaapiRectangle * const display_rect = &sink->display_rect;
 343     guint num, den, display_par_n, display_par_d;
 344     gboolean success;
 345
 346     /* Return success if caps are not set yet */
 347     if (!sink->caps)
 348         return TRUE;
 349
 350     if (!sink->keep_aspect) {
 351         display_rect->width = width;
 352         display_rect->height = height;
 353         display_rect->x = 0;
 354         display_rect->y = 0;
 355
 356         GST_DEBUG("force-aspect-ratio is false; distorting while scaling video");
 357         GST_DEBUG("render rect (%d,%d):%ux%u",
 358                   display_rect->x, display_rect->y,
 359                   display_rect->width, display_rect->height);
 360         return TRUE;
 361     }
 362
 363     GST_DEBUG("ensure render rect within %ux%u bounds", width, height);
 364
 365     gst_vaapi_display_get_pixel_aspect_ratio(
 366         GST_VAAPI_PLUGIN_BASE_DISPLAY(sink),
 367         &display_par_n, &display_par_d
 368     );
 369     GST_DEBUG("display pixel-aspect-ratio %d/%d",
 370               display_par_n, display_par_d);
 371
 372     success = gst_video_calculate_display_ratio(
 373         &num, &den,
 374         sink->video_width, sink->video_height,
 375         sink->video_par_n, sink->video_par_d,
 376         display_par_n, display_par_d
 377     );
 378     if (!success)
 379         return FALSE;
 380     GST_DEBUG("video size %dx%d, calculated ratio %d/%d",
 381               sink->video_width, sink->video_height, num, den);
 382
 383     display_rect->width = gst_util_uint64_scale_int(height, num, den);
 384     if (display_rect->width <= width) {
 385         GST_DEBUG("keeping window height");
 386         display_rect->height = height;
 387     }
 388     else {
 389         GST_DEBUG("keeping window width");
 390         display_rect->width  = width;
 391         display_rect->height =
 392             gst_util_uint64_scale_int(width, den, num);
 393     }
 394     GST_DEBUG("scaling video to %ux%u", display_rect->width, display_rect->height);
 395
 396     g_assert(display_rect->width  <= width);
 397     g_assert(display_rect->height <= height);
 398
 399     display_rect->x = (width  - display_rect->width)  / 2;
 400     display_rect->y = (height - display_rect->height) / 2;
 401
 402     GST_DEBUG("render rect (%d,%d):%ux%u",
 403               display_rect->x, display_rect->y,
 404               display_rect->width, display_rect->height);
 405     return TRUE;
 406 }
 407
 408 static void
 409 gst_vaapisink_ensure_window_size(GstVaapiSink *sink, guint *pwidth, guint *pheight)
 410 {
 411     GstVaapiDisplay * const display = GST_VAAPI_PLUGIN_BASE_DISPLAY(sink);
 412     GstVideoRectangle src_rect, dst_rect, out_rect;
 413     guint num, den, display_width, display_height, display_par_n, display_par_d;
 414     gboolean success, scale;
 415
 416     if (sink->foreign_window) {
 417         *pwidth  = sink->window_width;
 418         *pheight = sink->window_height;
 419         return;
 420     }
 421
 422     gst_vaapi_display_get_size(display, &display_width, &display_height);
 423     if (sink->fullscreen) {
 424         *pwidth  = display_width;
 425         *pheight = display_height;
 426         return;
 427     }
 428
 429     gst_vaapi_display_get_pixel_aspect_ratio(
 430         display,
 431         &display_par_n, &display_par_d
 432     );
 433
 434     success = gst_video_calculate_display_ratio(
 435         &num, &den,
 436         sink->video_width, sink->video_height,
 437         sink->video_par_n, sink->video_par_d,
 438         display_par_n, display_par_d
 439     );
 440     if (!success) {
 441         num = sink->video_par_n;
 442         den = sink->video_par_d;
 443     }
 444
 445     src_rect.x = 0;
 446     src_rect.y = 0;
 447     src_rect.w = gst_util_uint64_scale_int(sink->video_height, num, den);
 448     src_rect.h = sink->video_height;
 449     dst_rect.x = 0;
 450     dst_rect.y = 0;
 451     dst_rect.w = display_width;
 452     dst_rect.h = display_height;
 453     scale      = (src_rect.w > dst_rect.w || src_rect.h > dst_rect.h);
 454     gst_video_sink_center_rect(src_rect, dst_rect, &out_rect, scale);
 455     *pwidth    = out_rect.w;
 456     *pheight   = out_rect.h;
 457 }
 458
 459 static inline gboolean
 460 gst_vaapisink_ensure_window(GstVaapiSink *sink, guint width, guint height)
 461 {
 462     GstVaapiDisplay * const display = GST_VAAPI_PLUGIN_BASE_DISPLAY(sink);
 463
 464     if (!sink->window) {
 465         const GstVaapiDisplayType display_type =
 466             GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink);
 467         switch (display_type) {
 468 #if USE_GLX
 469         case GST_VAAPI_DISPLAY_TYPE_GLX:
 470             sink->window = gst_vaapi_window_glx_new(display, width, height);
 471             goto notify_video_overlay_interface;
 472 #endif
 473 #if USE_X11
 474         case GST_VAAPI_DISPLAY_TYPE_X11:
 475             sink->window = gst_vaapi_window_x11_new(display, width, height);
 476         notify_video_overlay_interface:
 477             if (!sink->window)
 478                 break;
 479             gst_video_overlay_got_window_handle(
 480                 GST_VIDEO_OVERLAY(sink),
 481                 gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window))
 482             );
 483             break;
 484 #endif
 485 #if USE_WAYLAND
 486         case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
 487             sink->window = gst_vaapi_window_wayland_new(display, width, height);
 488             break;
 489 #endif
 490         default:
 491             GST_ERROR("unsupported display type %d", display_type);
 492             return FALSE;
 493         }
 494     }
 495     return sink->window != NULL;
 496 }
 497
 498 #if USE_X11
 499 static gboolean
 500 gst_vaapisink_ensure_window_xid(GstVaapiSink *sink, guintptr window_id)
 501 {
 502     GstVaapiDisplay *display;
 503     Window rootwin;
 504     unsigned int width, height, border_width, depth;
 505     int x, y;
 506     XID xid = window_id;
 507
 508     if (!gst_vaapisink_ensure_display(sink))
 509         return FALSE;
 510     display = GST_VAAPI_PLUGIN_BASE_DISPLAY(sink);
 511
 512     gst_vaapi_display_lock(display);
 513     XGetGeometry(
 514         gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(display)),
 515         xid,
 516         &rootwin,
 517         &x, &y, &width, &height, &border_width, &depth
 518     );
 519     gst_vaapi_display_unlock(display);
 520
 521     if ((width != sink->window_width || height != sink->window_height) &&
 522         !configure_notify_event_pending(sink, xid, width, height)) {
 523         if (!gst_vaapisink_ensure_render_rect(sink, width, height))
 524             return FALSE;
 525         sink->window_width  = width;
 526         sink->window_height = height;
 527     }
 528
 529     if (sink->window &&
 530         gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window)) == xid)
 531         return TRUE;
 532
 533     gst_vaapi_window_replace(&sink->window, NULL);
 534
 535     switch (GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink)) {
 536 #if USE_GLX
 537     case GST_VAAPI_DISPLAY_TYPE_GLX:
 538         sink->window = gst_vaapi_window_glx_new_with_xid(display, xid);
 539         break;
 540 #endif
 541     case GST_VAAPI_DISPLAY_TYPE_X11:
 542         sink->window = gst_vaapi_window_x11_new_with_xid(display, xid);
 543         break;
 544     default:
 545         GST_ERROR("unsupported display type %d",
 546                   GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink));
 547         return FALSE;
 548     }
 549     return sink->window != NULL;
 550 }
 551 #endif
 552
 553 static gboolean
 554 gst_vaapisink_ensure_rotation(GstVaapiSink *sink, gboolean recalc_display_rect)
 555 {
 556     GstVaapiDisplay * const display = GST_VAAPI_PLUGIN_BASE_DISPLAY(sink);
 557     gboolean success = FALSE;
 558
 559     g_return_val_if_fail(display, FALSE);
 560
 561     if (sink->rotation == sink->rotation_req)
 562         return TRUE;
 563
 564     if (!sink->use_rotation) {
 565         GST_WARNING("VA display does not support rotation");
 566         goto end;
 567     }
 568
 569     gst_vaapi_display_lock(display);
 570     success = gst_vaapi_display_set_rotation(display, sink->rotation_req);
 571     gst_vaapi_display_unlock(display);
 572     if (!success) {
 573         GST_ERROR("failed to change VA display rotation mode");
 574         goto end;
 575     }
 576
 577     if (((sink->rotation + sink->rotation_req) % 180) == 90) {
 578         /* Orientation changed */
 579         G_PRIMITIVE_SWAP(guint, sink->video_width, sink->video_height);
 580         G_PRIMITIVE_SWAP(gint, sink->video_par_n, sink->video_par_d);
 581     }
 582
 583     if (recalc_display_rect && !sink->foreign_window)
 584         gst_vaapisink_ensure_render_rect(sink, sink->window_width,
 585             sink->window_height);
 586     success = TRUE;
 587
 588 end:
 589     sink->rotation = sink->rotation_req;
 590     return success;
 591 }
 592
 593 static gboolean
 594 gst_vaapisink_start(GstBaseSink *base_sink)
 595 {
 596     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 597
 598     if (!gst_vaapi_plugin_base_open(GST_VAAPI_PLUGIN_BASE(sink)))
 599         return FALSE;
 600     return gst_vaapisink_ensure_uploader(sink);
 601 }
 602
 603 static gboolean
 604 gst_vaapisink_stop(GstBaseSink *base_sink)
 605 {
 606     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 607
 608     gst_buffer_replace(&sink->video_buffer, NULL);
 609 #if GST_CHECK_VERSION(1,0,0)
 610     g_clear_object(&sink->video_buffer_pool);
 611 #endif
 612     gst_vaapi_window_replace(&sink->window, NULL);
 613
 614     gst_vaapi_plugin_base_close(GST_VAAPI_PLUGIN_BASE(sink));
 615     return TRUE;
 616 }
 617
 618 static GstCaps *
 619 gst_vaapisink_get_caps_impl(GstBaseSink *base_sink)
 620 {
 621     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 622     GstCaps *out_caps, *yuv_caps;
 623
 624 #if GST_CHECK_VERSION(1,1,0)
 625     out_caps = gst_static_pad_template_get_caps(&gst_vaapisink_sink_factory);
 626 #else
 627     out_caps = gst_caps_from_string(GST_VAAPI_SURFACE_CAPS);
 628 #endif
 629     if (!out_caps)
 630         return NULL;
 631
 632     if (gst_vaapisink_ensure_uploader(sink)) {
 633         yuv_caps = GST_VAAPI_PLUGIN_BASE_UPLOADER_CAPS(sink);
 634         if (yuv_caps) {
 635             out_caps = gst_caps_make_writable(out_caps);
 636             gst_caps_append(out_caps, gst_caps_copy(yuv_caps));
 637         }
 638     }
 639     return out_caps;
 640 }
 641
 642 #if GST_CHECK_VERSION(1,0,0)
 643 static inline GstCaps *
 644 gst_vaapisink_get_caps(GstBaseSink *base_sink, GstCaps *filter)
 645 {
 646     GstCaps *caps, *out_caps;
 647
 648     caps = gst_vaapisink_get_caps_impl(base_sink);
 649     if (caps && filter) {
 650         out_caps = gst_caps_intersect_full(caps, filter,
 651             GST_CAPS_INTERSECT_FIRST);
 652         gst_caps_unref(caps);
 653     }
 654     else
 655         out_caps = caps;
 656     return out_caps;
 657 }
 658 #else
 659 #define gst_vaapisink_get_caps gst_vaapisink_get_caps_impl
 660 #endif
 661
 662 static void
 663 update_colorimetry(GstVaapiSink *sink, GstVideoColorimetry *cinfo)
 664 {
 665 #if GST_CHECK_VERSION(1,0,0)
 666     if (gst_video_colorimetry_matches(cinfo,
 667             GST_VIDEO_COLORIMETRY_BT601))
 668         sink->color_standard = GST_VAAPI_COLOR_STANDARD_ITUR_BT_601;
 669     else if (gst_video_colorimetry_matches(cinfo,
 670             GST_VIDEO_COLORIMETRY_BT709))
 671         sink->color_standard = GST_VAAPI_COLOR_STANDARD_ITUR_BT_709;
 672     else if (gst_video_colorimetry_matches(cinfo,
 673             GST_VIDEO_COLORIMETRY_SMPTE240M))
 674         sink->color_standard = GST_VAAPI_COLOR_STANDARD_SMPTE_240M;
 675     else
 676         sink->color_standard = 0;
 677
 678     GST_DEBUG("colorimetry %s", gst_video_colorimetry_to_string(cinfo));
 679 #endif
 680 }
 681
 682 static gboolean
 683 gst_vaapisink_set_caps(GstBaseSink *base_sink, GstCaps *caps)
 684 {
 685     GstVaapiPluginBase * const plugin = GST_VAAPI_PLUGIN_BASE(base_sink);
 686     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 687     GstVideoInfo * const vip = GST_VAAPI_PLUGIN_BASE_SINK_PAD_INFO(sink);
 688     GstVaapiDisplay *display;
 689     guint win_width, win_height;
 690
 691     if (!gst_vaapisink_ensure_display(sink))
 692         return FALSE;
 693     display = GST_VAAPI_PLUGIN_BASE_DISPLAY(sink);
 694
 695 #if USE_DRM
 696     if (GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink) == GST_VAAPI_DISPLAY_TYPE_DRM)
 697         return TRUE;
 698 #endif
 699
 700     if (!gst_vaapi_plugin_base_set_caps(plugin, caps, NULL))
 701         return FALSE;
 702
 703     sink->video_width   = GST_VIDEO_INFO_WIDTH(vip);
 704     sink->video_height  = GST_VIDEO_INFO_HEIGHT(vip);
 705     sink->video_par_n   = GST_VIDEO_INFO_PAR_N(vip);
 706     sink->video_par_d   = GST_VIDEO_INFO_PAR_D(vip);
 707     GST_DEBUG("video pixel-aspect-ratio %d/%d",
 708               sink->video_par_n, sink->video_par_d);
 709
 710     update_colorimetry(sink, &vip->colorimetry);
 711     gst_caps_replace(&sink->caps, caps);
 712
 713     gst_vaapisink_ensure_rotation(sink, FALSE);
 714
 715     gst_vaapisink_ensure_window_size(sink, &win_width, &win_height);
 716     if (sink->window) {
 717         if (!sink->foreign_window || sink->fullscreen)
 718             gst_vaapi_window_set_size(sink->window, win_width, win_height);
 719     }
 720     else {
 721         gst_vaapi_display_lock(display);
 722         gst_video_overlay_prepare_window_handle(GST_VIDEO_OVERLAY(sink));
 723         gst_vaapi_display_unlock(display);
 724         if (sink->window)
 725             return TRUE;
 726         if (!gst_vaapisink_ensure_window(sink, win_width, win_height))
 727             return FALSE;
 728         gst_vaapi_window_set_fullscreen(sink->window, sink->fullscreen);
 729         gst_vaapi_window_show(sink->window);
 730         gst_vaapi_window_get_size(sink->window, &win_width, &win_height);
 731     }
 732     sink->window_width  = win_width;
 733     sink->window_height = win_height;
 734     GST_DEBUG("window size %ux%u", win_width, win_height);
 735
 736     return gst_vaapisink_ensure_render_rect(sink, win_width, win_height);
 737 }
 738
 739 #if USE_GLX
 740 static void
 741 render_background(GstVaapiSink *sink)
 742 {
 743     /* Original code from Mirco Muller (MacSlow):
 744        <http://cgit.freedesktop.org/~macslow/gl-gst-player/> */
 745     GLfloat fStartX = 0.0f;
 746     GLfloat fStartY = 0.0f;
 747     GLfloat fWidth  = (GLfloat)sink->window_width;
 748     GLfloat fHeight = (GLfloat)sink->window_height;
 749
 750     glClear(GL_COLOR_BUFFER_BIT);
 751     glBegin(GL_QUADS);
 752     {
 753         /* top third, darker grey to white */
 754         glColor3f(0.85f, 0.85f, 0.85f);
 755         glVertex3f(fStartX, fStartY, 0.0f);
 756         glColor3f(0.85f, 0.85f, 0.85f);
 757         glVertex3f(fStartX + fWidth, fStartY, 0.0f);
 758         glColor3f(1.0f, 1.0f, 1.0f);
 759         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 760         glColor3f(1.0f, 1.0f, 1.0f);
 761         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 762
 763         /* middle third, just plain white */
 764         glColor3f(1.0f, 1.0f, 1.0f);
 765         glVertex3f(fStartX, fStartY + fHeight / 3.0f, 0.0f);
 766         glVertex3f(fStartX + fWidth, fStartY + fHeight / 3.0f, 0.0f);
 767         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 768         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 769
 770         /* bottom third, white to lighter grey */
 771         glColor3f(1.0f, 1.0f, 1.0f);
 772         glVertex3f(fStartX, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 773         glColor3f(1.0f, 1.0f, 1.0f);
 774         glVertex3f(fStartX + fWidth, fStartY + 2.0f * fHeight / 3.0f, 0.0f);
 775         glColor3f(0.62f, 0.66f, 0.69f);
 776         glVertex3f(fStartX + fWidth, fStartY + fHeight, 0.0f);
 777         glColor3f(0.62f, 0.66f, 0.69f);
 778         glVertex3f(fStartX, fStartY + fHeight, 0.0f);
 779     }
 780     glEnd();
 781 }
 782
 783 static void
 784 render_frame(GstVaapiSink *sink, GstVaapiSurface *surface,
 785     const GstVaapiRectangle *surface_rect)
 786 {
 787     const guint x1 = sink->display_rect.x;
 788     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 789     const guint y1 = sink->display_rect.y;
 790     const guint y2 = sink->display_rect.y + sink->display_rect.height;
 791     gfloat tx1, tx2, ty1, ty2;
 792     guint width, height;
 793
 794     if (surface_rect) {
 795         gst_vaapi_surface_get_size(surface, &width, &height);
 796         tx1 = (gfloat)surface_rect->x / width;
 797         ty1 = (gfloat)surface_rect->y / height;
 798         tx2 = (gfloat)(surface_rect->x + surface_rect->width) / width;
 799         ty2 = (gfloat)(surface_rect->y + surface_rect->height) / height;
 800     }
 801     else {
 802         tx1 = 0.0f;
 803         ty1 = 0.0f;
 804         tx2 = 1.0f;
 805         ty2 = 1.0f;
 806     }
 807
 808     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 809     glBegin(GL_QUADS);
 810     {
 811         glTexCoord2f(tx1, ty1); glVertex2i(x1, y1);
 812         glTexCoord2f(tx1, ty2); glVertex2i(x1, y2);
 813         glTexCoord2f(tx2, ty2); glVertex2i(x2, y2);
 814         glTexCoord2f(tx2, ty1); glVertex2i(x2, y1);
 815     }
 816     glEnd();
 817 }
 818
 819 static void
 820 render_reflection(GstVaapiSink *sink)
 821 {
 822     const guint x1 = sink->display_rect.x;
 823     const guint x2 = sink->display_rect.x + sink->display_rect.width;
 824     const guint y1 = sink->display_rect.y;
 825     const guint rh = sink->display_rect.height / 5;
 826     GLfloat     ry = 1.0f - (GLfloat)rh / (GLfloat)sink->display_rect.height;
 827
 828     glBegin(GL_QUADS);
 829     {
 830         glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 831         glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y1);
 832         glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y1);
 833
 834         glColor4f(1.0f, 1.0f, 1.0f, 0.0f);
 835         glTexCoord2f(1.0f, ry); glVertex2i(x2, y1 + rh);
 836         glTexCoord2f(0.0f, ry); glVertex2i(x1, y1 + rh);
 837     }
 838     glEnd();
 839 }
 840
 841 static gboolean
 842 gst_vaapisink_ensure_texture(GstVaapiSink *sink, GstVaapiSurface *surface)
 843 {
 844     GstVaapiDisplay * display = GST_VAAPI_PLUGIN_BASE_DISPLAY(sink);
 845     GstVideoRectangle tex_rect, dis_rect, out_rect;
 846     guint width, height;
 847
 848     if (sink->texture)
 849         return TRUE;
 850
 851     gst_vaapi_surface_get_size(surface, &width, &height);
 852     tex_rect.x = 0;
 853     tex_rect.y = 0;
 854     tex_rect.w = width;
 855     tex_rect.h = height;
 856
 857     gst_vaapi_display_get_size(display, &width, &height);
 858     dis_rect.x = 0;
 859     dis_rect.y = 0;
 860     dis_rect.w = width;
 861     dis_rect.h = height;
 862
 863     gst_video_sink_center_rect(tex_rect, dis_rect, &out_rect, TRUE);
 864
 865     /* XXX: use surface size for now since some VA drivers have issues
 866        with downscaling to the provided texture size. i.e. we should be
 867        using the resulting out_rect size, which preserves the aspect
 868        ratio of the surface */
 869     width = tex_rect.w;
 870     height = tex_rect.h;
 871     GST_INFO("texture size %ux%u", width, height);
 872
 873     sink->texture = gst_vaapi_texture_new(display,
 874         GL_TEXTURE_2D, GL_BGRA, width, height);
 875     return sink->texture != NULL;
 876 }
 877
 878 static gboolean
 879 gst_vaapisink_show_frame_glx(
 880     GstVaapiSink               *sink,
 881     GstVaapiSurface            *surface,
 882     const GstVaapiRectangle    *surface_rect,
 883     guint                       flags
 884 )
 885 {
 886     GstVaapiWindowGLX *window;
 887     GLenum target;
 888     GLuint texture;
 889
 890     if (!sink->window)
 891         return FALSE;
 892     window = GST_VAAPI_WINDOW_GLX(sink->window);
 893
 894     gst_vaapi_window_glx_make_current(window);
 895     if (!gst_vaapisink_ensure_texture(sink, surface))
 896         goto error_create_texture;
 897     if (!gst_vaapi_texture_put_surface(sink->texture, surface, flags))
 898         goto error_transfer_surface;
 899
 900     target  = gst_vaapi_texture_get_target(sink->texture);
 901     texture = gst_vaapi_texture_get_id(sink->texture);
 902     if (target != GL_TEXTURE_2D || !texture)
 903         return FALSE;
 904
 905     if (sink->use_reflection)
 906         render_background(sink);
 907
 908     glEnable(target);
 909     glBindTexture(target, texture);
 910     {
 911         if (sink->use_reflection) {
 912             glPushMatrix();
 913             glRotatef(20.0f, 0.0f, 1.0f, 0.0f);
 914             glTranslatef(50.0f, 0.0f, 0.0f);
 915         }
 916         render_frame(sink, surface, surface_rect);
 917         if (sink->use_reflection) {
 918             glPushMatrix();
 919             glTranslatef(0.0, (GLfloat)sink->display_rect.height + 5.0f, 0.0f);
 920             render_reflection(sink);
 921             glPopMatrix();
 922             glPopMatrix();
 923         }
 924     }
 925     glBindTexture(target, 0);
 926     glDisable(target);
 927     gst_vaapi_window_glx_swap_buffers(window);
 928     return TRUE;
 929
 930     /* ERRORS */
 931 error_create_texture:
 932     {
 933         GST_DEBUG("could not create VA/GLX texture");
 934         return FALSE;
 935     }
 936 error_transfer_surface:
 937     {
 938         GST_DEBUG("could not transfer VA surface to texture");
 939         return FALSE;
 940     }
 941 }
 942 #endif
 943
 944 static inline gboolean
 945 gst_vaapisink_put_surface(
 946     GstVaapiSink               *sink,
 947     GstVaapiSurface            *surface,
 948     const GstVaapiRectangle    *surface_rect,
 949     guint                       flags
 950 )
 951 {
 952     if (!sink->window)
 953         return FALSE;
 954
 955     if (!gst_vaapi_window_put_surface(sink->window, surface,
 956                 surface_rect, &sink->display_rect, flags)) {
 957         GST_DEBUG("could not render VA surface");
 958         return FALSE;
 959     }
 960     return TRUE;
 961 }
 962
 963 static GstFlowReturn
 964 gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *src_buffer)
 965 {
 966     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
 967     GstVaapiVideoMeta *meta;
 968     GstVaapiSurface *surface;
 969     GstBuffer *buffer;
 970     guint flags;
 971     gboolean success;
 972     GstVaapiRectangle *surface_rect = NULL;
 973 #if GST_CHECK_VERSION(1,0,0)
 974     GstVaapiRectangle tmp_rect;
 975 #endif
 976     GstFlowReturn ret;
 977
 978 #if GST_CHECK_VERSION(1,0,0)
 979     GstVideoCropMeta * const crop_meta =
 980         gst_buffer_get_video_crop_meta(src_buffer);
 981     if (crop_meta) {
 982         surface_rect = &tmp_rect;
 983         surface_rect->x = crop_meta->x;
 984         surface_rect->y = crop_meta->y;
 985         surface_rect->width = crop_meta->width;
 986         surface_rect->height = crop_meta->height;
 987     }
 988 #endif
 989
 990     ret = gst_vaapi_plugin_base_get_input_buffer(GST_VAAPI_PLUGIN_BASE(sink),
 991         src_buffer, &buffer);
 992     if (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_SUPPORTED)
 993         return ret;
 994
 995     meta = gst_buffer_get_vaapi_video_meta(buffer);
 996     GST_VAAPI_PLUGIN_BASE_DISPLAY_REPLACE(sink,
 997         gst_vaapi_video_meta_get_display(meta));
 998
 999     gst_vaapisink_ensure_rotation(sink, TRUE);
1000
1001     surface = gst_vaapi_video_meta_get_surface(meta);
1002     if (!surface)
1003         goto error;
1004
1005     GST_DEBUG("render surface %" GST_VAAPI_ID_FORMAT,
1006               GST_VAAPI_ID_ARGS(gst_vaapi_surface_get_id(surface)));
1007
1008     if (!surface_rect)
1009         surface_rect = (GstVaapiRectangle *)
1010             gst_vaapi_video_meta_get_render_rect(meta);
1011
1012     if (surface_rect)
1013         GST_DEBUG("render rect (%d,%d), size %ux%u",
1014                   surface_rect->x, surface_rect->y,
1015                   surface_rect->width, surface_rect->height);
1016
1017     flags = gst_vaapi_video_meta_get_render_flags(meta);
1018
1019     /* Append default color standard obtained from caps if none was
1020        available on a per-buffer basis */
1021     if (!(flags & GST_VAAPI_COLOR_STANDARD_MASK))
1022         flags |= sink->color_standard;
1023
1024     if (!gst_vaapi_apply_composition(surface, src_buffer))
1025         GST_WARNING("could not update subtitles");
1026
1027     switch (GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink)) {
1028 #if USE_DRM
1029     case GST_VAAPI_DISPLAY_TYPE_DRM:
1030         success = TRUE;
1031         break;
1032 #endif
1033 #if USE_GLX
1034     case GST_VAAPI_DISPLAY_TYPE_GLX:
1035         if (!sink->use_glx)
1036             goto put_surface_x11;
1037         success = gst_vaapisink_show_frame_glx(sink, surface, surface_rect,
1038             flags);
1039         break;
1040 #endif
1041 #if USE_X11
1042     case GST_VAAPI_DISPLAY_TYPE_X11:
1043     put_surface_x11:
1044         success = gst_vaapisink_put_surface(sink, surface, surface_rect, flags);
1045         break;
1046 #endif
1047 #if USE_WAYLAND
1048     case GST_VAAPI_DISPLAY_TYPE_WAYLAND:
1049         success = gst_vaapisink_put_surface(sink, surface, surface_rect, flags);
1050         break;
1051 #endif
1052     default:
1053         GST_ERROR("unsupported display type %d",
1054                   GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink));
1055         success = FALSE;
1056         break;
1057     }
1058     if (!success)
1059         goto error;
1060
1061     /* Retain VA surface until the next one is displayed */
1062     gst_buffer_replace(&sink->video_buffer, buffer);
1063     gst_buffer_unref(buffer);
1064     return GST_FLOW_OK;
1065
1066 error:
1067     gst_buffer_unref(buffer);
1068     return GST_FLOW_EOS;
1069 }
1070
1071 #if GST_CHECK_VERSION(1,0,0)
1072 static gboolean
1073 gst_vaapisink_propose_allocation(GstBaseSink *base_sink, GstQuery *query)
1074 {
1075     GstVaapiPluginBase * const plugin = GST_VAAPI_PLUGIN_BASE(base_sink);
1076
1077     if (!gst_vaapi_plugin_base_propose_allocation(plugin, query))
1078         return FALSE;
1079
1080     gst_query_add_allocation_meta(query, GST_VIDEO_CROP_META_API_TYPE, NULL);
1081     gst_query_add_allocation_meta(query,
1082         GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
1083     return TRUE;
1084 }
1085 #else
1086 static GstFlowReturn
1087 gst_vaapisink_buffer_alloc(GstBaseSink *base_sink, guint64 offset, guint size,
1088     GstCaps *caps, GstBuffer **outbuf_ptr)
1089 {
1090     return gst_vaapi_plugin_base_allocate_input_buffer(
1091         GST_VAAPI_PLUGIN_BASE(base_sink), caps, outbuf_ptr);
1092 }
1093 #endif
1094
1095 static gboolean
1096 gst_vaapisink_query(GstBaseSink *base_sink, GstQuery *query)
1097 {
1098     GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
1099
1100     GST_INFO_OBJECT(sink, "query type %s", GST_QUERY_TYPE_NAME(query));
1101
1102     if (gst_vaapi_reply_to_query(query, GST_VAAPI_PLUGIN_BASE_DISPLAY(sink))) {
1103         GST_DEBUG("sharing display %p", GST_VAAPI_PLUGIN_BASE_DISPLAY(sink));
1104         return TRUE;
1105     }
1106
1107     return GST_BASE_SINK_CLASS(gst_vaapisink_parent_class)->query(base_sink,
1108         query);
1109 }
1110
1111 static void
1112 gst_vaapisink_finalize(GObject *object)
1113 {
1114     gst_vaapisink_destroy(GST_VAAPISINK(object));
1115
1116     gst_vaapi_plugin_base_finalize(GST_VAAPI_PLUGIN_BASE(object));
1117     G_OBJECT_CLASS(gst_vaapisink_parent_class)->finalize(object);
1118 }
1119
1120 static void
1121 gst_vaapisink_set_property(
1122     GObject      *object,
1123     guint         prop_id,
1124     const GValue *value,
1125     GParamSpec   *pspec
1126 )
1127 {
1128     GstVaapiSink * const sink = GST_VAAPISINK(object);
1129
1130     switch (prop_id) {
1131     case PROP_DISPLAY_TYPE:
1132         gst_vaapi_plugin_base_set_display_type(GST_VAAPI_PLUGIN_BASE(sink),
1133             g_value_get_enum(value));
1134         break;
1135     case PROP_DISPLAY_NAME:
1136         gst_vaapi_plugin_base_set_display_name(GST_VAAPI_PLUGIN_BASE(sink),
1137             g_value_get_string(value));
1138         break;
1139     case PROP_FULLSCREEN:
1140         sink->fullscreen = g_value_get_boolean(value);
1141         break;
1142     case PROP_SYNCHRONOUS:
1143         sink->synchronous = g_value_get_boolean(value);
1144         break;
1145     case PROP_USE_GLX:
1146         sink->use_glx = g_value_get_boolean(value);
1147         break;
1148     case PROP_USE_REFLECTION:
1149         sink->use_reflection = g_value_get_boolean(value);
1150         break;
1151     case PROP_ROTATION:
1152         sink->rotation_req = g_value_get_enum(value);
1153         break;
1154     case PROP_FORCE_ASPECT_RATIO:
1155         sink->keep_aspect = g_value_get_boolean(value);
1156         break;
1157     default:
1158         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
1159         break;
1160     }
1161 }
1162
1163 static void
1164 gst_vaapisink_get_property(
1165     GObject    *object,
1166     guint       prop_id,
1167     GValue     *value,
1168     GParamSpec *pspec
1169 )
1170 {
1171     GstVaapiSink * const sink = GST_VAAPISINK(object);
1172
1173     switch (prop_id) {
1174     case PROP_DISPLAY_TYPE:
1175         g_value_set_enum(value, GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(sink));
1176         break;
1177     case PROP_DISPLAY_NAME:
1178         g_value_set_string(value, GST_VAAPI_PLUGIN_BASE_DISPLAY_NAME(sink));
1179         break;
1180     case PROP_FULLSCREEN:
1181         g_value_set_boolean(value, sink->fullscreen);
1182         break;
1183     case PROP_SYNCHRONOUS:
1184         g_value_set_boolean(value, sink->synchronous);
1185         break;
1186     case PROP_USE_GLX:
1187         g_value_set_boolean(value, sink->use_glx);
1188         break;
1189     case PROP_USE_REFLECTION:
1190         g_value_set_boolean(value, sink->use_reflection);
1191         break;
1192     case PROP_ROTATION:
1193         g_value_set_enum(value, sink->rotation);
1194         break;
1195     case PROP_FORCE_ASPECT_RATIO:
1196         g_value_set_boolean(value, sink->keep_aspect);
1197         break;
1198     default:
1199         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
1200         break;
1201     }
1202 }
1203
1204 static void
1205 gst_vaapisink_set_bus(GstElement *element, GstBus *bus)
1206 {
1207     /* Make sure to allocate a VA display in the sink element first,
1208        so that upstream elements could query a display that was
1209        allocated here, and that exactly matches what the user
1210        requested through the "display" property */
1211     if (!GST_ELEMENT_BUS(element) && bus)
1212         gst_vaapisink_ensure_display(GST_VAAPISINK(element));
1213
1214     GST_ELEMENT_CLASS(gst_vaapisink_parent_class)->set_bus(element, bus);
1215 }
1216
1217 static void
1218 gst_vaapisink_class_init(GstVaapiSinkClass *klass)
1219 {
1220     GObjectClass * const     object_class   = G_OBJECT_CLASS(klass);
1221     GstElementClass * const  element_class  = GST_ELEMENT_CLASS(klass);
1222     GstBaseSinkClass * const basesink_class = GST_BASE_SINK_CLASS(klass);
1223     GstVaapiPluginBaseClass * const base_plugin_class =
1224         GST_VAAPI_PLUGIN_BASE_CLASS(klass);
1225     GstPadTemplate *pad_template;
1226
1227     GST_DEBUG_CATEGORY_INIT(gst_debug_vaapisink,
1228                             GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
1229
1230     gst_vaapi_plugin_base_class_init(base_plugin_class);
1231     base_plugin_class->has_interface    = gst_vaapisink_has_interface;
1232     base_plugin_class->display_changed  = gst_vaapisink_display_changed;
1233
1234     object_class->finalize       = gst_vaapisink_finalize;
1235     object_class->set_property   = gst_vaapisink_set_property;
1236     object_class->get_property   = gst_vaapisink_get_property;
1237
1238     basesink_class->start        = gst_vaapisink_start;
1239     basesink_class->stop         = gst_vaapisink_stop;
1240     basesink_class->get_caps     = gst_vaapisink_get_caps;
1241     basesink_class->set_caps     = gst_vaapisink_set_caps;
1242     basesink_class->preroll      = gst_vaapisink_show_frame;
1243     basesink_class->render       = gst_vaapisink_show_frame;
1244     basesink_class->query        = gst_vaapisink_query;
1245 #if GST_CHECK_VERSION(1,0,0)
1246     basesink_class->propose_allocation = gst_vaapisink_propose_allocation;
1247 #else
1248     basesink_class->buffer_alloc = gst_vaapisink_buffer_alloc;
1249 #endif
1250
1251     element_class->set_bus = gst_vaapisink_set_bus;
1252     gst_element_class_set_static_metadata(element_class,
1253         "VA-API sink",
1254         "Sink/Video",
1255         GST_PLUGIN_DESC,
1256         "Gwenole Beauchesne <gwenole.beauchesne@intel.com>");
1257
1258     pad_template = gst_static_pad_template_get(&gst_vaapisink_sink_factory);
1259     gst_element_class_add_pad_template(element_class, pad_template);
1260
1261     g_object_class_install_property
1262         (object_class,
1263          PROP_DISPLAY_TYPE,
1264          g_param_spec_enum("display",
1265                            "display type",
1266                            "display type to use",
1267                            GST_VAAPI_TYPE_DISPLAY_TYPE,
1268                            GST_VAAPI_DISPLAY_TYPE_ANY,
1269                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1270
1271     g_object_class_install_property
1272         (object_class,
1273          PROP_DISPLAY_NAME,
1274          g_param_spec_string("display-name",
1275                              "display name",
1276                              "display name to use",
1277                              NULL,
1278                              G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1279
1280 #if USE_GLX
1281     g_object_class_install_property
1282         (object_class,
1283          PROP_USE_GLX,
1284          g_param_spec_boolean("use-glx",
1285                               "OpenGL rendering",
1286                               "Enables OpenGL rendering",
1287                               FALSE,
1288                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1289
1290     g_object_class_install_property
1291         (object_class,
1292          PROP_USE_REFLECTION,
1293          g_param_spec_boolean("use-reflection",
1294                               "Reflection effect",
1295                               "Enables OpenGL reflection effect",
1296                               FALSE,
1297                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1298 #endif
1299
1300     g_object_class_install_property
1301         (object_class,
1302          PROP_FULLSCREEN,
1303          g_param_spec_boolean("fullscreen",
1304                               "Fullscreen",
1305                               "Requests window in fullscreen state",
1306                               FALSE,
1307                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1308
1309     /**
1310      * GstVaapiSink:synchronous:
1311      *
1312      * When enabled, runs the X display in synchronous mode. Note that
1313      * this is used only for debugging.
1314      */
1315     g_object_class_install_property
1316         (object_class,
1317          PROP_SYNCHRONOUS,
1318          g_param_spec_boolean("synchronous",
1319                               "Synchronous mode",
1320                               "Toggles X display synchronous mode",
1321                               FALSE,
1322                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1323
1324     /**
1325      * GstVaapiSink:rotation:
1326      *
1327      * The VA display rotation mode, expressed as a #GstVaapiRotation.
1328      */
1329     g_object_class_install_property
1330         (object_class,
1331          PROP_ROTATION,
1332          g_param_spec_enum(GST_VAAPI_DISPLAY_PROP_ROTATION,
1333                            "rotation",
1334                            "The display rotation mode",
1335                            GST_VAAPI_TYPE_ROTATION,
1336                            DEFAULT_ROTATION,
1337                            G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1338
1339     /**
1340      * GstVaapiSink:force-aspect-ratio:
1341      *
1342      * When enabled, scaling respects video aspect ratio; when disabled, the
1343      * video is distorted to fit the window.
1344      */
1345     g_object_class_install_property
1346         (object_class,
1347          PROP_FORCE_ASPECT_RATIO,
1348          g_param_spec_boolean("force-aspect-ratio",
1349                               "Force aspect ratio",
1350                               "When enabled, scaling will respect original aspect ratio",
1351                               TRUE,
1352                               G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
1353 }
1354
1355 static void
1356 gst_vaapisink_init(GstVaapiSink *sink)
1357 {
1358     GstVaapiPluginBase * const plugin = GST_VAAPI_PLUGIN_BASE(sink);
1359
1360     gst_vaapi_plugin_base_init(plugin, GST_CAT_DEFAULT);
1361     gst_vaapi_plugin_base_set_display_type(plugin, DEFAULT_DISPLAY_TYPE);
1362
1363     sink->caps           = NULL;
1364     sink->window         = NULL;
1365     sink->window_width   = 0;
1366     sink->window_height  = 0;
1367     sink->texture        = NULL;
1368     sink->video_buffer   = NULL;
1369     sink->video_width    = 0;
1370     sink->video_height   = 0;
1371     sink->video_par_n    = 1;
1372     sink->video_par_d    = 1;
1373     sink->foreign_window = FALSE;
1374     sink->fullscreen     = FALSE;
1375     sink->synchronous    = FALSE;
1376     sink->rotation       = DEFAULT_ROTATION;
1377     sink->rotation_req   = DEFAULT_ROTATION;
1378     sink->use_reflection = FALSE;
1379     sink->use_overlay    = FALSE;
1380     sink->use_rotation   = FALSE;
1381     sink->keep_aspect    = TRUE;
1382     gst_video_info_init(&sink->video_info);
1383 }