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Adding documentation for videomixer on my way with a funny sample pipeline.

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Original commit message from CVS:
2005-12-12  Julien MOUTTE  <julien@moutte.net>

* docs/plugins/Makefile.am:
* docs/plugins/gst-plugins-good-plugins-docs.sgml:
* docs/plugins/gst-plugins-good-plugins-sections.txt:
* docs/plugins/gst-plugins-good-plugins.hierarchy:
* gst/videomixer/videomixer.c:
(gst_videomixer_pad_sink_setcaps),
(gst_videomixer_getcaps), (gst_videomixer_fill_queues),
(gst_videomixer_update_queues), (gst_videomixer_collected):
Adding
documentation for videomixer on my way with a funny sample
pipeline.
This commit is contained in:
Julien Moutte 2005-12-12 22:29:34 +00:00
parent 5fa259d071
commit ea9090e73f
6 changed files with 65 additions and 3 deletions
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12
ChangeLog
View file

@ -1,3 +1,15 @@
2005-12-12 Julien MOUTTE <julien@moutte.net>
* docs/plugins/Makefile.am:
* docs/plugins/gst-plugins-good-plugins-docs.sgml:
* docs/plugins/gst-plugins-good-plugins-sections.txt:
* docs/plugins/gst-plugins-good-plugins.hierarchy:
* gst/videomixer/videomixer.c: (gst_videomixer_pad_sink_setcaps),
(gst_videomixer_getcaps), (gst_videomixer_fill_queues),
(gst_videomixer_update_queues), (gst_videomixer_collected): Adding
documentation for videomixer on my way with a funny sample
pipeline.
2005-12-12 Julien MOUTTE <julien@moutte.net>
* gst/videomixer/videomixer.c: (gst_videomixer_pad_sink_setcaps),

3
docs/plugins/Makefile.am
View file

@ -81,7 +81,8 @@ EXTRA_HFILES = \
$(top_srcdir)/ext/cairo/gsttimeoverlay.h \
$(top_srcdir)/ext/flac/gstflacdec.h \
$(top_srcdir)/gst/multipart/multipartmux.c \
$(top_srcdir)/gst/multipart/multipartdemux.c
$(top_srcdir)/gst/multipart/multipartdemux.c \
$(top_srcdir)/gst/videomixer/videomixer.c
# example code that needs to be converted to xml and placed in xml/
EXAMPLE_CFILES = \

1
docs/plugins/gst-plugins-good-plugins-docs.sgml
View file

@ -20,6 +20,7 @@
<xi:include href="xml/element-level.xml" />
<xi:include href="xml/element-multipartmux.xml" />
<xi:include href="xml/element-multipartdemux.xml" />
<xi:include href="xml/element-videomixer.xml" />
</chapter>
<chapter>

9
docs/plugins/gst-plugins-good-plugins-sections.txt
View file

@ -62,3 +62,12 @@ GstMultipartDemux
GstMultipartDemuxClass
</SECTION>
<SECTION>
<FILE>element-videomixer</FILE>
GstVideoMixer
GstVideoMixerBackground
<TITLE>videomixer</TITLE>
<SUBSECTION Standard>
GstVideoMixerClass
</SECTION>

1
docs/plugins/gst-plugins-good-plugins.hierarchy
View file

@ -294,6 +294,7 @@ GObject
GstTypeFindElement
GstMultipartMux
GstMultipartDemux
GstVideoMixer
GstPadTemplate
GstIndex
GstMemIndex

42
gst/videomixer/videomixer.c
View file

@ -17,6 +17,34 @@
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:element-videomixer
* @short_description: Takes several AYUV video streams as input and mixes them
* together.
*
* <refsect2>
* <para>
* Videomixer can only accept AYUV video streams. For each of the requested
* sink pads it will compare the incoming geometry and framerate to define the
* output parameters. Indeed output video frames will have the geometry of the
* biggest incoming video stream and the framerate of the fastest incoming one.
* </para>
* <title>Sample pipelines</title>
* <para>
* Here is a pipeline to demonstrate videomixer used together with videobox :
* <programlisting>
* gst-launch videotestsrc pattern=1 ! video/x-raw-yuv, framerate=\(fraction\)10/1, width=100, height=100 ! videobox border-alpha=0 alpha=0.5 top=-70 bottom=-70 right=-220 ! videomixer name=mix ! ffmpegcolorspace ! xvimagesink videotestsrc ! video/x-raw-yuv, framerate=\(fraction\)5/1, width=320, height=240 ! alpha alpha=0.7 ! mix.
* </programlisting>
* This should show a 320x240 pixels video test source with some transparency
* showing the background checker pattern. Another video test source with just
* the snow pattern of 100x100 pixels is overlayed on top of the first one on
* the left vertically centered with a small transparency showing the first
* video test source behind and the checker pattern under it. Note that the
* framerate of the output video is 10 frames per second.
* </para>
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
@ -228,8 +256,13 @@ gst_videomixer_pad_set_property (GObject * object, guint prop_id,
}
/**
* GstVideoMixerBackground:
*/
* GstVideoMixerBackground:
* @VIDEO_MIXER_BACKGROUND_CHECKER: checker pattern background
* @VIDEO_MIXER_BACKGROUND_BLACK: solid color black background
* @VIDEO_MIXER_BACKGROUND_WHITE: solid color white background
*
* The different backgrounds videomixer can blend over.
*/
typedef enum
{
VIDEO_MIXER_BACKGROUND_CHECKER,
@ -238,6 +271,11 @@ typedef enum
}
GstVideoMixerBackground;
/**
* GstVideoMixer:
*
* The opaque #GstVideoMixer structure.
*/
struct _GstVideoMixer
{
GstElement element;