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Diffstat (limited to 'gst/videobox/README')
| -rw-r--r-- | gst/videobox/README | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gst/videobox/README b/gst/videobox/README new file mode 100644 index 00000000..e71da590 --- /dev/null +++ b/gst/videobox/README @@ -0,0 +1,21 @@ +Videobox +-------- + +This plugin crops or enlarges the image. It takes 4 values as input, a +top, bottom, left and right offset. Positive values will crop that much +pixels from the respective border of the image, negative values will add +that much pixels. When pixels are added, you can specify their color. +Some predefined colors are usable with an enum property. + +The plugin is alpha channel aware and will try to negotiate with a format +that supports alpha channels first. When alpha channel is active two +other properties, alpha and border_alpha can be used to set the alpha +values of the inner picture and the border respectively. an alpha value of +0.0 means total transparency, 1.0 is opaque. + +The videobox plugin has many uses such as doing a mosaic of pictures, +letterboxing video, cutting out pieces of video, picture in picture, etc.. + +TODO + +- add enum to specify common aspect ratios/sizes and add borders/crop |