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| author | Petr Viktorin <encukou@gmail.com> | 2016-02-28 10:12:36 +0100 |
|---|---|---|
| committer | Nicolas Dufresne <nicolas.dufresne@collabora.com> | 2016-02-28 11:52:14 -0500 |
| commit | d089cd5a12bfd4bdf9a95650d6a7428c3dff69c7 (patch) | |
| tree | 3d169c8a09a80805efa675b27b188a4ea0bd50d6 | |
| parent | a4d64b5caa3fac5223e58b6d791fbd6fbe44ff72 (diff) | |
| download | gstreamer-plugins-good-d089cd5a12bfd4bdf9a95650d6a7428c3dff69c7.tar.gz | |
alpha: Fix sample pipeline
Use the zorder pad property to make sure the semitransparent
video is on top of the background.
https://bugzilla.gnome.org/show_bug.cgi?id=762809
| -rw-r--r-- | gst/alpha/gstalpha.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/gst/alpha/gstalpha.c b/gst/alpha/gstalpha.c index 736f3778e..839b8db23 100644 --- a/gst/alpha/gstalpha.c +++ b/gst/alpha/gstalpha.c @@ -30,12 +30,13 @@ * * Sample pipeline: * |[ - * gst-launch-1.0 videotestsrc pattern=smpte75 ! alpha method=green ! \ - * videomixer name=mixer ! videoconvert ! autovideosink \ - * videotestsrc pattern=snow ! mixer. + * gst-launch-1.0 videotestsrc pattern=snow ! mixer.sink_0 \ + * videotestsrc pattern=smpte75 ! alpha method=green ! mixer.sink_1 \ + * videomixer name=mixer sink_0::zorder=0 sink_1::zorder=1 ! \ + * videoconvert ! autovideosink * ]| This pipeline adds a alpha channel to the SMPTE color bars - * with green as the transparent color and mixes the output with - * a snow video stream. + * with green as the transparent color and overlays the output on + * top of a snow video stream. */ |