/usr/share/gtk-doc/html/clutter-gst-3.0/clutter-gst-Video-Sink.html is in libclutter-gst-3.0-doc 3.0.26-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Video Sink: Clutter Gst 3.0.26
Reference Manual</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="index.html" title="Clutter Gst 3.0.26 Reference Manual">
<link rel="up" href="ch04.html" title="ClutterGst sink">
<link rel="prev" href="ch04.html" title="ClutterGst sink">
<link rel="next" href="ch05.html" title="ClutterGst utils">
<meta name="generator" content="GTK-Doc V1.27 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span>
<a href="#clutter-gst-Video-Sink.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span>
<a href="#clutter-gst-Video-Sink.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_interfaces"> <span class="dim">|</span>
<a href="#clutter-gst-Video-Sink.implemented-interfaces" class="shortcut">Implemented Interfaces</a></span><span id="nav_properties"> <span class="dim">|</span>
<a href="#clutter-gst-Video-Sink.properties" class="shortcut">Properties</a></span><span id="nav_signals"> <span class="dim">|</span>
<a href="#clutter-gst-Video-Sink.signals" class="shortcut">Signals</a></span>
</td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="ch04.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="ch04.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="ch05.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="clutter-gst-Video-Sink"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="clutter-gst-Video-Sink.top_of_page"></a>Video Sink</span></h2>
<p>Video Sink — A video sink for integrating a GStreamer
pipeline with a Cogl pipeline.</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="clutter-gst-Video-Sink.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="returnvalue">ClutterGstVideoSink</span></a> *
</td>
<td class="function_name">
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-new" title="clutter_gst_video_sink_new ()">clutter_gst_video_sink_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-is-ready" title="clutter_gst_video_sink_is_ready ()">clutter_gst_video_sink_is_ready</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="clutter-gst-Types.html#ClutterGstFrame"><span class="returnvalue">ClutterGstFrame</span></a> *
</td>
<td class="function_name">
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-get-frame" title="clutter_gst_video_sink_get_frame ()">clutter_gst_video_sink_get_frame</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="../cogl-2.0-experimental/cogl-2.0-experimental-Pipeline.html#CoglPipeline"><span class="returnvalue">CoglPipeline</span></a> *
</td>
<td class="function_name">
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-get-pipeline" title="clutter_gst_video_sink_get_pipeline ()">clutter_gst_video_sink_get_pipeline</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-setup-pipeline" title="clutter_gst_video_sink_setup_pipeline ()">clutter_gst_video_sink_setup_pipeline</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="clutter-gst-Types.html#ClutterGstOverlays"><span class="returnvalue">ClutterGstOverlays</span></a> *
</td>
<td class="function_name">
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-get-overlays" title="clutter_gst_video_sink_get_overlays ()">clutter_gst_video_sink_get_overlays</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="clutter-gst-Video-Sink.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody><tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink--update-priority" title="The “update-priority” property">update-priority</a></td>
<td class="property_flags">Read / Write</td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="clutter-gst-Video-Sink.signals"></a><h2>Signals</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="signals_return">
<col width="300px" class="signals_name">
<col width="200px" class="signals_flags">
</colgroup>
<tbody>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-new-frame" title="The “new-frame” signal">new-frame</a></td>
<td class="signal_flags"><a href="../gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-new-overlays" title="The “new-overlays” signal">new-overlays</a></td>
<td class="signal_flags"><a href="../gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-pipeline-ready" title="The “pipeline-ready” signal">pipeline-ready</a></td>
<td class="signal_flags"><a href="../gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></td>
</tr>
</tbody>
</table></div>
</div>
<a name="ClutterGstVideoSink"></a><div class="refsect1">
<a name="clutter-gst-Video-Sink.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-struct" title="struct ClutterGstVideoSink">ClutterGstVideoSink</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSinkClass" title="struct ClutterGstVideoSinkClass">ClutterGstVideoSinkClass</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="clutter-gst-Video-Sink.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="../gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
<span class="lineart">╰──</span> <a href="../gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="../gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
<span class="lineart">╰──</span> <a href="../gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
<span class="lineart">╰──</span> <a href="../gstreamer-libs-1.0/GstBaseSink.html#GstBaseSink-struct">GstBaseSink</a>
<span class="lineart">╰──</span> <a href="../gst-plugins-base-libs-1.0/GstVideoSink.html#GstVideoSink-struct">GstVideoSink</a>
<span class="lineart">╰──</span> ClutterGstVideoSink
</pre>
</div>
<div class="refsect1">
<a name="clutter-gst-Video-Sink.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
ClutterGstVideoSink implements
<a href="../gst-plugins-base-libs-1.0/GstColorBalance.html#GstColorBalance-struct">GstColorBalance</a> and <a href="../gst-plugins-base-libs-1.0/GstNavigation.html#GstNavigation-struct">GstNavigation</a>.</p>
</div>
<div class="refsect1">
<a name="clutter-gst-Video-Sink.description"></a><h2>Description</h2>
<p><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a> is a subclass of <a href="../gstreamer-libs-1.0/GstBaseSink.html#GstBaseSink-struct"><span class="type">GstBaseSink</span></a> which can be used to
create a <a href="../cogl-2.0-experimental/cogl-2.0-experimental-Pipeline.html#CoglPipeline"><span class="type">CoglPipeline</span></a> for rendering the frames of the video.</p>
<p>To create a basic video player, an application can create a
<a href="../gstreamer-1.0/GstPipeline.html#GstPipeline-struct"><span class="type">GstPipeline</span></a> as normal using <a href="../gstreamer-1.0/GstPipeline.html#gst-pipeline-new"><code class="function">gst_pipeline_new()</code></a> and set the
sink on it to one created with <a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-new" title="clutter_gst_video_sink_new ()"><code class="function">clutter_gst_video_sink_new()</code></a>. The
application can then listen for the <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-new-frame" title="The “new-frame” signal"><span class="type">“new-frame”</span></a>
signal which will be emitted whenever there are new textures ready
for rendering. For simple rendering, the application can just call
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-get-pipeline" title="clutter_gst_video_sink_get_pipeline ()"><code class="function">clutter_gst_video_sink_get_pipeline()</code></a> in the signal handler and use
the returned pipeline to paint the new frame.</p>
<p>An application is also free to do more advanced rendering by
customizing the pipeline. In that case it should listen for the
<a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-pipeline-ready" title="The “pipeline-ready” signal"><span class="type">“pipeline-ready”</span></a> signal which will be emitted as
soon as the sink has determined enough information about the video
to know how it should be rendered. In the handler for this signal,
the application can either make modifications to a copy of the
pipeline returned by <a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-get-pipeline" title="clutter_gst_video_sink_get_pipeline ()"><code class="function">clutter_gst_video_sink_get_pipeline()</code></a> or it can
create its own pipeline from scratch and ask the sink to configure
it with <a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-setup-pipeline" title="clutter_gst_video_sink_setup_pipeline ()"><code class="function">clutter_gst_video_sink_setup_pipeline()</code></a>. If a custom pipeline
is created using one of these methods then the application should
call <code class="function">clutter_gst_video_sink_attach_frame()</code> on the pipeline before
rendering in order to update the textures on the pipeline's layers.</p>
<p>If the <a href="../cogl-2.0-experimental/cogl-2.0-experimental-The-Top-Level-Context.html#COGL-FEATURE-ID-GLSL:CAPS"><code class="literal">COGL_FEATURE_ID_GLSL</code></a> feature is available then the pipeline
used by the sink will have a shader snippet with a function in it
called clutter_gst_sample_video0 which takes a single vec2 argument.
This can be used by custom snippets set the by the application to
sample from the video. The vec2 argument represents the normalised
coordinates within the video. The function returns a vec4
containing a pre-multiplied RGBA color of the pixel within the
video.</p>
</div>
<div class="refsect1">
<a name="clutter-gst-Video-Sink.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="clutter-gst-video-sink-new"></a><h3>clutter_gst_video_sink_new ()</h3>
<pre class="programlisting"><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="returnvalue">ClutterGstVideoSink</span></a> *
clutter_gst_video_sink_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a></p>
<div class="refsect3">
<a name="clutter-gst-video-sink-new.returns"></a><h4>Returns</h4>
<p>a new <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-gst-video-sink-is-ready"></a><h3>clutter_gst_video_sink_is_ready ()</h3>
<pre class="programlisting"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
clutter_gst_video_sink_is_ready (<em class="parameter"><code><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a> *sink</code></em>);</pre>
<p>Returns whether the pipeline is ready and so
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-get-pipeline" title="clutter_gst_video_sink_get_pipeline ()"><code class="function">clutter_gst_video_sink_get_pipeline()</code></a> and
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-setup-pipeline" title="clutter_gst_video_sink_setup_pipeline ()"><code class="function">clutter_gst_video_sink_setup_pipeline()</code></a> can be called without causing error.</p>
<p>Note: Normally an application will wait until the
<a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-pipeline-ready" title="The “pipeline-ready” signal"><span class="type">“pipeline-ready”</span></a> signal is emitted instead of
polling the ready status with this api, but sometimes when a sink
is passed between components that didn't have an opportunity to
connect a signal handler this can be useful.</p>
<div class="refsect3">
<a name="clutter-gst-video-sink-is-ready.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>sink</p></td>
<td class="parameter_description"><p>The <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="clutter-gst-video-sink-is-ready.returns"></a><h4>Returns</h4>
<p> <a href="../glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the sink is ready, else <a href="../glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a></p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-gst-video-sink-get-frame"></a><h3>clutter_gst_video_sink_get_frame ()</h3>
<pre class="programlisting"><a class="link" href="clutter-gst-Types.html#ClutterGstFrame"><span class="returnvalue">ClutterGstFrame</span></a> *
clutter_gst_video_sink_get_frame (<em class="parameter"><code><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a> *sink</code></em>);</pre>
<p>Returns a <a class="link" href="clutter-gst-Types.html#ClutterGstFrame"><span class="type">ClutterGstFrame</span></a> object suitable to render the current
frame of the given video sink. An application is free to make a
copy of this pipeline and modify it for custom rendering.</p>
<div class="refsect3">
<a name="clutter-gst-video-sink-get-frame.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>sink</p></td>
<td class="parameter_description"><p>The <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="clutter-gst-video-sink-get-frame.returns"></a><h4>Returns</h4>
<p>A <a class="link" href="clutter-gst-Types.html#ClutterGstFrame"><span class="type">ClutterGstFrame</span></a> or NULL if there
isn't a frame to be displayed yet. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-gst-video-sink-get-pipeline"></a><h3>clutter_gst_video_sink_get_pipeline ()</h3>
<pre class="programlisting"><a href="../cogl-2.0-experimental/cogl-2.0-experimental-Pipeline.html#CoglPipeline"><span class="returnvalue">CoglPipeline</span></a> *
clutter_gst_video_sink_get_pipeline (<em class="parameter"><code><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a> *sink</code></em>);</pre>
<p>Returns a pipeline suitable for rendering the current frame of the
given video sink. The pipeline will already have the textures for
the frame attached. For simple rendering, an application will
typically call this function immediately before it paints the
video. It can then just paint a rectangle using the returned
pipeline.</p>
<p>An application is free to make a copy of this
pipeline and modify it for custom rendering.</p>
<p>Note: it is considered an error to call this function before the
<a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-pipeline-ready" title="The “pipeline-ready” signal"><span class="type">“pipeline-ready”</span></a> signal is emitted.</p>
<div class="refsect3">
<a name="clutter-gst-video-sink-get-pipeline.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>sink</p></td>
<td class="parameter_description"><p>The <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="clutter-gst-video-sink-get-pipeline.returns"></a><h4>Returns</h4>
<p>the pipeline for rendering the
current frame. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-gst-video-sink-setup-pipeline"></a><h3>clutter_gst_video_sink_setup_pipeline ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
clutter_gst_video_sink_setup_pipeline (<em class="parameter"><code><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a> *sink</code></em>,
<em class="parameter"><code><a href="../cogl-2.0-experimental/cogl-2.0-experimental-Pipeline.html#CoglPipeline"><span class="type">CoglPipeline</span></a> *pipeline</code></em>);</pre>
<p>Configures the given pipeline so that will be able to render the
video for the <em class="parameter"><code>sink</code></em>
. This should only be used if the application
wants to perform some custom rendering using its own pipeline.
Typically an application will call this in response to the
<a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-pipeline-ready" title="The “pipeline-ready” signal"><span class="type">“pipeline-ready”</span></a> signal.</p>
<p>Note: it is considered an error to call this function before the
<a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-pipeline-ready" title="The “pipeline-ready” signal"><span class="type">“pipeline-ready”</span></a> signal is emitted.</p>
<div class="refsect3">
<a name="clutter-gst-video-sink-setup-pipeline.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>sink</p></td>
<td class="parameter_description"><p>The <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pipeline</p></td>
<td class="parameter_description"><p>A <a href="../cogl-2.0-experimental/cogl-2.0-experimental-Pipeline.html#CoglPipeline"><span class="type">CoglPipeline</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-gst-video-sink-get-overlays"></a><h3>clutter_gst_video_sink_get_overlays ()</h3>
<pre class="programlisting"><a class="link" href="clutter-gst-Types.html#ClutterGstOverlays"><span class="returnvalue">ClutterGstOverlays</span></a> *
clutter_gst_video_sink_get_overlays (<em class="parameter"><code><a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a> *sink</code></em>);</pre>
</div>
</div>
<div class="refsect1">
<a name="clutter-gst-Video-Sink.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="ClutterGstVideoSink-struct"></a><h3>struct ClutterGstVideoSink</h3>
<pre class="programlisting">struct ClutterGstVideoSink;</pre>
<p>The <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a> structure contains only private data and
should be accessed using the provided API.</p>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="ClutterGstVideoSinkClass"></a><h3>struct ClutterGstVideoSinkClass</h3>
<pre class="programlisting">struct ClutterGstVideoSinkClass {
void (* new_frame) (ClutterGstVideoSink *sink);
void (* pipeline_ready) (ClutterGstVideoSink *sink);
void (* new_overlays) (ClutterGstVideoSink *sink);
};
</pre>
<div class="refsect3">
<a name="ClutterGstVideoSinkClass.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="ClutterGstVideoSinkClass.new-frame"></a>new_frame</code></em> ()</p></td>
<td class="struct_member_description"><p>handler for the <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-new-frame" title="The “new-frame” signal"><span class="type">“new-frame”</span></a> signal</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="ClutterGstVideoSinkClass.pipeline-ready"></a>pipeline_ready</code></em> ()</p></td>
<td class="struct_member_description"><p>handler for the <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-pipeline-ready" title="The “pipeline-ready” signal"><span class="type">“pipeline-ready”</span></a> signal</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="ClutterGstVideoSinkClass.new-overlays"></a>new_overlays</code></em> ()</p></td>
<td> </td>
<td> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
</div>
<div class="refsect1">
<a name="clutter-gst-Video-Sink.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="ClutterGstVideoSink--update-priority"></a><h3>The <code class="literal">“update-priority”</code> property</h3>
<pre class="programlisting"> “update-priority” <a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Priority of video updates in the thread.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: >= -2147483647</p>
<p>Default value: 150</p>
</div>
</div>
<div class="refsect1">
<a name="clutter-gst-Video-Sink.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="ClutterGstVideoSink-new-frame"></a><h3>The <code class="literal">“new-frame”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a> *sink,
<a href="../glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data)</pre>
<p>The sink will emit this signal whenever there are new textures
available for a new frame of the video. After this signal is
emitted, an application can call <a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-get-pipeline" title="clutter_gst_video_sink_get_pipeline ()"><code class="function">clutter_gst_video_sink_get_pipeline()</code></a>
to get a pipeline suitable for rendering the frame. If the
application is using a custom pipeline it can alternatively call
<code class="function">clutter_gst_video_sink_attach_frame()</code> to attach the textures.</p>
<div class="refsect3">
<a name="ClutterGstVideoSink-new-frame.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>sink</p></td>
<td class="parameter_description"><p>the <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: <a href="../gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></p>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="ClutterGstVideoSink-new-overlays"></a><h3>The <code class="literal">“new-overlays”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a> *sink,
<a href="../glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data)</pre>
<p>The sink will emit this signal whenever there are new textures
available for set of overlays on the video. After this signal is
emitted, an application can call
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-get-overlays" title="clutter_gst_video_sink_get_overlays ()"><code class="function">clutter_gst_video_sink_get_overlays()</code></a> to get a set of pipelines
suitable for rendering overlays on a video frame.</p>
<div class="refsect3">
<a name="ClutterGstVideoSink-new-overlays.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>sink</p></td>
<td class="parameter_description"><p>the <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: <a href="../gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></p>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="ClutterGstVideoSink-pipeline-ready"></a><h3>The <code class="literal">“pipeline-ready”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a> *sink,
<a href="../glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data)</pre>
<p>The sink will emit this signal as soon as it has gathered enough
information from the video to configure a pipeline. If the
application wants to do some customized rendering, it can setup its
pipeline after this signal is emitted. The application's pipeline
will typically either be a copy of the one returned by
<a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-get-pipeline" title="clutter_gst_video_sink_get_pipeline ()"><code class="function">clutter_gst_video_sink_get_pipeline()</code></a> or it can be a completely custom
pipeline which is setup using <a class="link" href="clutter-gst-Video-Sink.html#clutter-gst-video-sink-setup-pipeline" title="clutter_gst_video_sink_setup_pipeline ()"><code class="function">clutter_gst_video_sink_setup_pipeline()</code></a>.</p>
<p>Note that it is an error to call either of those functions before
this signal is emitted. The <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink-new-frame" title="The “new-frame” signal"><span class="type">“new-frame”</span></a> signal
will only be emitted after the pipeline is ready so the application
could also create its pipeline in the handler for that.</p>
<div class="refsect3">
<a name="ClutterGstVideoSink-pipeline-ready.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>sink</p></td>
<td class="parameter_description"><p>the <a class="link" href="clutter-gst-Video-Sink.html#ClutterGstVideoSink"><span class="type">ClutterGstVideoSink</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: <a href="../gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></p>
<p class="since">Since: <a class="link" href="api-index-3-0.html#api-index-3.0">3.0</a></p>
</div>
</div>
</div>
<div class="footer">
<hr>Generated by GTK-Doc V1.27</div>
</body>
</html>
|