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ext/jack/gstjackaudiosink.*: Improve docs.

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Original commit message from CVS:
* ext/jack/gstjackaudiosink.c: (jack_sample_rate_cb),
(jack_buffer_size_cb), (jack_shutdown_cb),
(gst_jack_ring_buffer_acquire):
* ext/jack/gstjackaudiosink.h:
Improve docs.
This commit is contained in:
Wim Taymans 2007-01-12 10:25:40 +00:00 committed by Tim-Philipp Müller
parent 8beff1f58c
commit b0bfe6fcdd
2 changed files with 37 additions and 10 deletions
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36
ext/jack/gstjackaudiosink.c
View file

@ -20,29 +20,45 @@
*/
/**
* SECTION:gstjacksink
* SECTION:element-jackaudiosink
* @short_description: JACK audio sink
* @see_also: #GstBaseAudioSink, #GstRingBuffer
*
* <refsect2>
* <para>
* A Sink that outputs data to Jack ports.
*
* It will create N Jack ports named out_<num> where <num> is starting from 1.
* </para>
* <para>
* It will create N Jack ports named out_&lt;num&gt; where &lt;num&gt; is starting from 1.
* Each port corresponds to a gstreamer channel.
*
* </para>
* <para>
* The samplerate as exposed on the caps is always the same as the samplerate of
* the jack server.
*
* </para>
* <para>
* When the ::connect property is set to auto, this element will try to connect
* each output port to a random physical jack input pin. In this mode, the sink
* will expose the number of physical channels on its pad caps.
*
* </para>
* <para>
* When the ::connect property is set to none, the element will accept any
* number of input channels and will create (but not connect) an output port for
* each channel.
*
* </para>
* <para>
* The element will generate an error when the Jack server is shut down when it
* was PAUSED or PLAYING. This element does not support dynamic rate and buffer
* size changes at runtime.
* </para>
* <title>Example launch line</title>
* <para>
* <programlisting>
* gst-launch audiotestsrc ! jackaudiosink
* </programlisting>
* Play a sine wave to using jack.
* </para>
* </refsect2>
*
* Last reviewed on 2006-11-30 (0.10.4)
*/
@ -394,9 +410,9 @@ gst_jack_ring_buffer_close_device (GstRingBuffer * buf)
/* allocate a buffer and setup resources to process the audio samples of
* the format as specified in @spec.
*
* We allocate N jack ports for each channel. If we are asked to automatically
* make a connection with physical ports, we connect as many ports as there are
* physical ports, leaving leftover ports unconnected.
* We allocate N jack ports, one for each channel. If we are asked to
* automatically make a connection with physical ports, we connect as many
* ports as there are physical ports, leaving leftover ports unconnected.
*
* It is assumed that samplerate and number of channels are acceptable since our
* getcaps method will always provide correct values. If unacceptable caps are

11
ext/jack/gstjackaudiosink.h
View file

@ -39,6 +39,17 @@ G_BEGIN_DECLS
typedef struct _GstJackAudioSink GstJackAudioSink;
typedef struct _GstJackAudioSinkClass GstJackAudioSinkClass;
/**
* GstJackConnect:
* @GST_JACK_CONNECT_NONE: Don't automatically connect to physical ports.
* In this mode, the element will accept any number of input channels and will
* create (but not connect) an output port for each channel.
* @GST_JACK_CONNECT_AUTO: In this mode, the element will try to connect each
* output port to a random physical jack input pin. The sink will
* expose the number of physical channels on its pad caps.
*
* Specify how the output ports will be connected.
*/
typedef enum {
GST_JACK_CONNECT_NONE,
GST_JACK_CONNECT_AUTO