gstreamer/gst/videomixer
Michael Rubinstein 6ea5d31456 videomixer: fix endianness check on systems where non-glib endianness defines are not set
On Windows LITTLE_ENDIAN without the G_ in was not defined,  so the
test comes out wrong.
2012-08-24 19:45:11 +01:00
..
blend.c videomixer: fix endianness check on systems where non-glib endianness defines are not set 2012-08-24 19:45:11 +01:00
blend.h videomixer: port to 0.11 2012-01-26 18:16:58 +01:00
blendorc-dist.c gst: update disted orc files 2012-08-08 15:10:37 +01:00
blendorc-dist.h videomixer: prefix orc functions with video_mixer_orc_ 2012-07-24 09:17:09 +02:00
blendorc.orc videomixer: prefix orc functions with video_mixer_orc_ 2012-07-24 09:17:09 +02:00
Makefile.am gst: Update versioning 2012-04-04 14:37:47 +02:00
README A plugin to add an alpha channel to I420 video. Can optionally do chroma keying. 2004-05-28 18:01:34 +00:00
videomixer.vcproj more working plugins 2004-07-27 21:41:30 +00:00
videomixer2.c gst: Set alignment at the correct place of GstAllocationParams 2012-08-08 17:41:31 +02:00
videomixer2.h videomixer: change sink pad template name from sink_%d to sink_%u 2012-05-01 18:58:03 +01:00
videomixer2pad.h collectpads2: rename to collectpads 2012-04-17 15:14:27 +02:00

Video Mixer
-----------

A generice video mixer, it blends the ayuv buffers from all pads onto 
a new buffer. The new buffer has by default a checkerboard pattern but
its color can be changed with a property.
The mixer can mix streams with different framerates and video sizes. It
uses the duration value of the buffer to schedule the rendering of the
buffers. For streams with a different resoltion than the final output
resolution one can specify the position of the top left corner where this
image should be placed with the pad properties xpos and ypos.
The overall alpha value of a stream can also be specified with a pad
property.
By default, the streams are blended in the order that the pads were 
requested from the element. This can be overridden by changing the 
zorder pad property of the stream, a stream with lower zorder gets
drawn first.


TODO
----

- really implement zorder
- take I420 yuv as well
- output AYUV if possible.
- implement different blend modes, some code is already done
- use filter caps on srcpad to decide on the final output size