~ubuntu-branches/ubuntu/trusty/gstreamer1.0/trusty-proposed

<a href="../gstreamer-1.0/GstPad.html#GstFlowReturn">GstFlowReturn</a> <a class="link" href="GstBaseSrc.html#gst-base-src-wait-playing" title="gst_base_src_wait_playing ()">gst_base_src_wait_playing</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>);

<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn">GstFlowReturn</a> <a class="link" href="GstBaseSrc.html#gst-base-src-wait-playing" title="gst_base_src_wait_playing ()">gst_base_src_wait_playing</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>);

<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GstBaseSrc.html#gst-base-src-is-live" title="gst_base_src_is_live ()">gst_base_src_is_live</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>);

void <a class="link" href="GstBaseSrc.html#gst-base-src-set-live" title="gst_base_src_set_live ()">gst_base_src_set_live</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>,

<code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean">gboolean</a> live</code>);

void <a class="link" href="GstBaseSrc.html#gst-base-src-set-format" title="gst_base_src_set_format ()">gst_base_src_set_format</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>,

<code><a href="../gstreamer-1.0/gstreamer-GstFormat.html#GstFormat">GstFormat</a> format</code>);

<code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GstFormat">GstFormat</a> format</code>);

<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GstBaseSrc.html#gst-base-src-query-latency" title="gst_base_src_query_latency ()">gst_base_src_query_latency</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>,

<code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean">gboolean</a> *live</code>,

<code><a href="../gstreamer-1.0/GstClock.html#GstClockTime">GstClockTime</a> *min_latency</code>,

<code><a href="../gstreamer-1.0/GstClock.html#GstClockTime">GstClockTime</a> *max_latency</code>);

<code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstClock.html#GstClockTime">GstClockTime</a> *min_latency</code>,

<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint">guint</a> <a class="link" href="GstBaseSrc.html#gst-base-src-get-blocksize" title="gst_base_src_get_blocksize ()">gst_base_src_get_blocksize</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>);

void <a class="link" href="GstBaseSrc.html#gst-base-src-set-blocksize" title="gst_base_src_set_blocksize ()">gst_base_src_set_blocksize</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>,

<code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint">guint</a> blocksize</code>);

<code>gint64 stop</code>,

<code>gint64 position</code>);

<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean">gboolean</a> <a class="link" href="GstBaseSrc.html#gst-base-src-set-caps" title="gst_base_src_set_caps ()">gst_base_src_set_caps</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>,

<code><a href="../gstreamer-1.0/gstreamer-GstCaps.html#GstCaps">GstCaps</a> *caps</code>);

<code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps">GstCaps</a> *caps</code>);

void <a class="link" href="GstBaseSrc.html#gst-base-src-get-allocator" title="gst_base_src_get_allocator ()">gst_base_src_get_allocator</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>,

<code><a href="../gstreamer-1.0/GstAllocator.html">GstAllocator</a> **allocator</code>,

<code><a href="../gstreamer-1.0/GstAllocator.html#GstAllocationParams">GstAllocationParams</a> *params</code>);

<a href="../gstreamer-1.0/gstreamer-GstBufferPool.html#GstBufferPool">GstBufferPool</a> * <a class="link" href="GstBaseSrc.html#gst-base-src-get-buffer-pool" title="gst_base_src_get_buffer_pool ()">gst_base_src_get_buffer_pool</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>);

<code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html">GstAllocator</a> **allocator</code>,

<code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html#GstAllocationParams">GstAllocationParams</a> *params</code>);

<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBufferPool.html#GstBufferPool">GstBufferPool</a> * <a class="link" href="GstBaseSrc.html#gst-base-src-get-buffer-pool" title="gst_base_src_get_buffer_pool ()">gst_base_src_get_buffer_pool</a> (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>);

#define <a class="link" href="GstBaseSrc.html#GST-BASE-SRC-PAD:CAPS" title="GST_BASE_SRC_PAD()">GST_BASE_SRC_PAD</a> (obj)

</pre>

</div>

<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>

+----<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>

+----<a href="../gstreamer-1.0/GstObject.html">GstObject</a>

+----<a href="../gstreamer-1.0/GstElement.html">GstElement</a>

+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>

+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>

+----GstBaseSrc

+----<a class="link" href="GstPushSrc.html" title="GstPushSrc">GstPushSrc</a>

</pre>

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The source can be configured to operate in any <a href="../gstreamer-1.0/gstreamer-GstFormat.html#GstFormat">GstFormat</a> with the

115

The source can be configured to operate in any <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GstFormat">GstFormat</a> with the

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<a class="link" href="GstBaseSrc.html#gst-base-src-set-format" title="gst_base_src_set_format ()"><code class="function">gst_base_src_set_format()</code></a> method. The currently set format determines

117

the format of the internal <a href="../gstreamer-1.0/gstreamer-GstSegment.html#GstSegment">GstSegment</a> and any <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstEvent.html#GST-EVENT-NEWSEGMENT:CAPS">GST_EVENT_NEWSEGMENT</a>

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events. The default format for <a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> is <a href="../gstreamer-1.0/gstreamer-GstFormat.html#GST-FORMAT-BYTES:CAPS">GST_FORMAT_BYTES</a>.

117

the format of the internal <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSegment.html#GstSegment">GstSegment</a> and any GST_EVENT_NEWSEGMENT

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events. The default format for <a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> is <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GST-FORMAT-BYTES:CAPS">GST_FORMAT_BYTES</a>.

119

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<a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> always supports push mode scheduling. If the following

122

conditions are met, it also supports pull mode scheduling:

123

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<li class="listitem">The format is set to <a href="../gstreamer-1.0/gstreamer-GstFormat.html#GST-FORMAT-BYTES:CAPS">GST_FORMAT_BYTES</a> (default).</li>

125

<li class="listitem">The format is set to <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GST-FORMAT-BYTES:CAPS">GST_FORMAT_BYTES</a> (default).</li>

126

<li class="listitem"><a class="link" href="GstBaseSrc.html#GstBaseSrcClass.is-seekable"><code class="function">GstBaseSrcClass.is_seekable()</code></a> returns <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>.</li>

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</ul></div>

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If all the conditions are met for operating in pull mode, <a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> is

132

automatically seekable in push mode as well. The following conditions must

133

be met to make the element seekable in push mode when the format is not

134

<a href="../gstreamer-1.0/gstreamer-GstFormat.html#GST-FORMAT-BYTES:CAPS">GST_FORMAT_BYTES</a>:

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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstFormat.html#GST-FORMAT-BYTES:CAPS">GST_FORMAT_BYTES</a>:

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137

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<a class="link" href="GstBaseSrc.html#GstBaseSrcClass.create"><code class="function">GstBaseSrcClass.create()</code></a> method will not be called in PAUSED but only in

169

PLAYING. To signal the pipeline that the element will not produce data, the

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return value from the READY to PAUSED state will be

171

<a href="../gstreamer-1.0/GstElement.html#GST-STATE-CHANGE-NO-PREROLL:CAPS">GST_STATE_CHANGE_NO_PREROLL</a>.

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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#GST-STATE-CHANGE-NO-PREROLL:CAPS">GST_STATE_CHANGE_NO_PREROLL</a>.

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A typical live source will timestamp the buffers it creates with the

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220

221

11</pre></td>

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223

224

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15</pre></td>

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226

<td class="listing_code"><pre class="programlisting">static void

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227

my_element_class_init (GstMyElementClass *klass)

224

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{

225

229

GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);

226

// srctemplate should be a <a href="../gstreamer-1.0/GstPadTemplate.html#GstStaticPadTemplate">GstStaticPadTemplate</a> with direction

227

// <a href="../gstreamer-1.0/GstPad.html#GST-PAD-SRC:CAPS">GST_PAD_SRC</a> and name "src"

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<a href="../gstreamer-1.0/GstElement.html#gst-element-class-add-pad-template">gst_element_class_add_pad_template</a> (gstelement_class,

229

<a href="../gstreamer-1.0/GstPadTemplate.html#gst-static-pad-template-get">gst_static_pad_template_get</a> (&srctemplate));

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// see <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElementFactory.html#GstElementDetails">GstElementDetails</a>

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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#gst-element-class-set-details">gst_element_class_set_details</a> (gstelement_class, &details);

230

// srctemplate should be a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPadTemplate.html#GstStaticPadTemplate">GstStaticPadTemplate</a> with direction

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// <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-PAD-SRC:CAPS">GST_PAD_SRC</a> and name "src"

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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#gst-element-class-add-pad-template">gst_element_class_add_pad_template</a> (gstelement_class,

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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPadTemplate.html#gst-static-pad-template-get">gst_static_pad_template_get</a> (&srctemplate));

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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#gst-element-class-set-static-metadata">gst_element_class_set_static_metadata</a> (gstelement_class,

236

"Source name",

237

"Source",

238

"My Source element",

239

"The author <my.sink@my.email>");

232

240

}</pre></td>

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</tr>

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242

</tbody>

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<a name="idp5184896"></a><h3>Controlled shutdown of live sources in applications</h3>

251

<a name="idp34470512"></a><h3>Controlled shutdown of live sources in applications</h3>

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245

253

Applications that record from a live source may want to stop recording

246

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in a controlled way, so that the recording is stopped, but the data

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An application may send an EOS event to a source element to make it

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perform the EOS logic (send EOS event downstream or post a

257

<a href="../gstreamer-1.0/gstreamer-GstMessage.html#GST-MESSAGE-SEGMENT-DONE:CAPS">GST_MESSAGE_SEGMENT_DONE</a> on the bus). This can typically be done

258

with the <a href="../gstreamer-1.0/GstElement.html#gst-element-send-event"><code class="function">gst_element_send_event()</code></a> function on the element or its parent bin.

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<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMessage.html#GST-MESSAGE-SEGMENT-DONE:CAPS">GST_MESSAGE_SEGMENT_DONE</a> on the bus). This can typically be done

266

with the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#gst-element-send-event"><code class="function">gst_element_send_event()</code></a> function on the element or its parent bin.

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After the EOS has been sent to the element, the application should wait for

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<tbody>

356

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<tr>

357

<td><a href="../gstreamer-1.0/GstElement.html#GstElementClass">GstElementClass</a> <code><a name="GstBaseSrcClass.parent-class"></a>parent_class</code>;</td>

365

<td><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#GstElementClass">GstElementClass</a> <code><a name="GstBaseSrcClass.parent-class"></a>parent_class</code>;</td>

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<td>Element parent class</td>

359

367

</tr>

360

368

<tr>

470

478

} GstBaseSrcFlags;

471

479

</pre>

472

480

473

The <a href="../gstreamer-1.0/GstElement.html">GstElement</a> flags that a basesrc element may have.

481

The <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a> flags that a basesrc element may have.

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482

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483

476

484

496

504

<hr>

497

505

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506

<a name="gst-base-src-wait-playing"></a><h3>gst_base_src_wait_playing ()</h3>

499

<pre class="programlisting"><a href="../gstreamer-1.0/GstPad.html#GstFlowReturn">GstFlowReturn</a> gst_base_src_wait_playing (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>);</pre>

507

<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn">GstFlowReturn</a> gst_base_src_wait_playing (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>);</pre>

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509

If the <a class="link" href="GstBaseSrc.html#GstBaseSrcClass.create"><code class="function">GstBaseSrcClass.create()</code></a> method performs its own synchronisation

502

510

against the clock it must unblock when going from PLAYING to the PAUSED state

504

512

505

513

506

514

This function will block until a state change to PLAYING happens (in which

507

case this function returns <a href="../gstreamer-1.0/GstPad.html#GST-FLOW-OK:CAPS">GST_FLOW_OK</a>) or the processing must be stopped due

515

case this function returns <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-FLOW-OK:CAPS">GST_FLOW_OK</a>) or the processing must be stopped due

508

516

to a state change to READY or a FLUSH event (in which case this function

509

returns <a href="../gstreamer-1.0/GstPad.html#GST-FLOW-FLUSHING:CAPS">GST_FLOW_FLUSHING</a>).

517

returns <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-FLOW-FLUSHING:CAPS">GST_FLOW_FLUSHING</a>).

510

518

511

519

512

520

518

526

<tr>

519

527

<td>Returns :</td>

520

528

<td>

521

<a href="../gstreamer-1.0/GstPad.html#GST-FLOW-OK:CAPS">GST_FLOW_OK</a> if <code>src</code> is PLAYING and processing can

529

<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GST-FLOW-OK:CAPS">GST_FLOW_OK</a> if <code>src</code> is PLAYING and processing can

522

530

continue. Any other return value should be returned from the create vmethod.</td>

523

531

</tr>

524

532

</tbody>

580

588

581

589

<a name="gst-base-src-set-format"></a><h3>gst_base_src_set_format ()</h3>

582

590

<pre class="programlisting">void gst_base_src_set_format (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>,

583

<code><a href="../gstreamer-1.0/gstreamer-GstFormat.html#GstFormat">GstFormat</a> format</code>);</pre>

591

584

592

585

593

Sets the default format of the source. This will be the format used

586

594

for sending NEW_SEGMENT events and for performing seeks.

590

598

operate in pull mode if the <a class="link" href="GstBaseSrc.html#GstBaseSrcClass.is-seekable"><code class="function">GstBaseSrcClass.is_seekable()</code></a> returns TRUE.

591

599

592

600

593

This function must only be called in states < <a href="../gstreamer-1.0/GstElement.html#GST-STATE-PAUSED:CAPS"><code class="literal">GST_STATE_PAUSED</code></a>.

601

This function must only be called in states < <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#GST-STATE-PAUSED:CAPS"><code class="literal">GST_STATE_PAUSED</code></a>.

594

602

595

603

596

604

611

619

<a name="gst-base-src-query-latency"></a><h3>gst_base_src_query_latency ()</h3>

612

620

<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean">gboolean</a> gst_base_src_query_latency (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>,

613

621

<code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean">gboolean</a> *live</code>,

614

<code><a href="../gstreamer-1.0/GstClock.html#GstClockTime">GstClockTime</a> *min_latency</code>,

615

<code><a href="../gstreamer-1.0/GstClock.html#GstClockTime">GstClockTime</a> *max_latency</code>);</pre>

622

623

616

624

617

625

Query the source for the latency parameters. <code>live</code> will be TRUE when <code>src</code> is

618

626

configured as a live source. <code>min_latency</code> will be set to the difference

797

805

<td>Stop value for the new segment</td>

798

806

</tr>

799

807

<tr>

800

<td><code>position</code> :</td>

801

<td>The position value for the new segent</td>

808

809

<td>The new time value for the start of the new segent</td>

802

810

</tr>

803

811

<tr>

804

812

<td>Returns :</td>

812

820

813

821

814

822

<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean">gboolean</a> gst_base_src_set_caps (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>,

815

<code><a href="../gstreamer-1.0/gstreamer-GstCaps.html#GstCaps">GstCaps</a> *caps</code>);</pre>

823

<code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps">GstCaps</a> *caps</code>);</pre>

816

824

817

825

Set new caps on the basesrc source pad.

818

826

826

834

</tr>

827

835

<tr>

828

836

829

<td>a <a href="../gstreamer-1.0/gstreamer-GstCaps.html#GstCaps">GstCaps</a>

837

<td>a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps">GstCaps</a>

830

838

</td>

831

839

</tr>

832

840

<tr>

841

849

842

850

<a name="gst-base-src-get-allocator"></a><h3>gst_base_src_get_allocator ()</h3>

843

851

<pre class="programlisting">void gst_base_src_get_allocator (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>,

844

<code><a href="../gstreamer-1.0/GstAllocator.html">GstAllocator</a> **allocator</code>,

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<code><a href="../gstreamer-1.0/GstAllocator.html#GstAllocationParams">GstAllocationParams</a> *params</code>);</pre>

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<code><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html">GstAllocator</a> **allocator</code>,

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Lets <a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> sub-classes to know the memory <code>allocator</code>

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used by the base class and its <code>params</code>.

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</tr>

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<tr>

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<td><code>allocator</code> :</td>

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<td>the <a href="../gstreamer-1.0/GstAllocator.html">GstAllocator</a>

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<td>the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstAllocator.html">GstAllocator</a>

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used. [<acronym title="Parameter for returning results. Default is transfer full.">out</acronym>][<acronym title="NULL is ok, both for passing and for returning.">allow-none</acronym>][<acronym title="Free data after the code is done.">transfer full</acronym>]

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</td>

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</tr>

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<hr>

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<a name="gst-base-src-get-buffer-pool"></a><h3>gst_base_src_get_buffer_pool ()</h3>

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<pre class="programlisting"><a href="../gstreamer-1.0/gstreamer-GstBufferPool.html#GstBufferPool">GstBufferPool</a> * gst_base_src_get_buffer_pool (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>);</pre>

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<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBufferPool.html#GstBufferPool">GstBufferPool</a> * gst_base_src_get_buffer_pool (<code><a class="link" href="GstBaseSrc.html" title="GstBaseSrc">GstBaseSrc</a> *src</code>);</pre>

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<tbody>

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</tr>

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<tr>

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<td>Returns :</td>

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<td>the instance of the <a href="../gstreamer-1.0/gstreamer-GstBufferPool.html#GstBufferPool">GstBufferPool</a> used

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<td>the instance of the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBufferPool.html#GstBufferPool">GstBufferPool</a> used

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by the src; free it after use it. [<acronym title="Free data after the code is done.">transfer full</acronym>]

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</td>

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</tr>

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<pre class="programlisting">#define GST_BASE_SRC_PAD(obj) (GST_BASE_SRC_CAST (obj)->srcpad)

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</pre>

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Gives the pointer to the <a href="../gstreamer-1.0/GstPad.html">GstPad</a> object of the element.

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Gives the pointer to the <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html">GstPad</a> object of the element.

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