diff options
| -rw-r--r-- | tools/element-templates/videofilter | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/tools/element-templates/videofilter b/tools/element-templates/videofilter new file mode 100644 index 000000000..fb22b2884 --- /dev/null +++ b/tools/element-templates/videofilter @@ -0,0 +1,78 @@ +/* vim: set filetype=c: */ +% ClassName +GstVideoFilter +% TYPE_CLASS_NAME +GST_TYPE_VIDEO_FILTER +% pads +sinkpad-simple srcpad-simple +% pkg-config +gstreamer-video-0.10 +% includes +#include <gst/video/video.h> +#include <gst/video/gstvideofilter.h> +% prototypes +static gboolean +gst_replace_start (GstBaseTransform * trans); +static gboolean +gst_replace_stop (GstBaseTransform * trans); +static GstFlowReturn +gst_replace_transform_ip (GstBaseTransform * trans, GstBuffer * buf); +static gboolean +gst_replace_set_caps (GstBaseTransform * trans, GstCaps * incaps, + GstCaps * outcaps); +% declare-class + GstBaseTransformClass *base_transform_class = GST_BASE_TRANSFORM_CLASS (klass); +% set-methods + base_transform_class->start = GST_DEBUG_FUNCPTR (gst_replace_start); + base_transform_class->stop = GST_DEBUG_FUNCPTR (gst_replace_stop); + base_transform_class->set_caps = GST_DEBUG_FUNCPTR (gst_replace_set_caps); + base_transform_class->transform_ip = GST_DEBUG_FUNCPTR (gst_replace_transform_ip); +% methods + +static gboolean +gst_replace_start (GstBaseTransform * trans) +{ + /* GstReplace *replace = GST_REPLACE (trans); */ + + /* initialize processing */ + return TRUE; +} + +static gboolean +gst_replace_stop (GstBaseTransform * trans) +{ + /* GstReplace *replace = GST_REPLACE (trans); */ + + /* finalize processing */ + return TRUE; +} + +static gboolean +gst_replace_set_caps (GstBaseTransform * trans, GstCaps * incaps, + GstCaps * outcaps) +{ + /* GstReplace *replace = GST_REPLACE (trans); */ + GstVideoFormat video_format; + int w, h; + + /* parse input caps, output caps are the same so we ignore them */ + if (!gst_video_format_parse_caps (incaps, &video_format, &w, &h)) + return FALSE; + + /* You'll need to add those fields to the instance struct first */ + /* replace->video_format = video_format; */ + /* replace->width = w; */ + /* replace->height = h; */ + return TRUE; +} + +static GstFlowReturn +gst_replace_transform_ip (GstBaseTransform * trans, GstBuffer * buf) +{ + /* GstReplace *replace = GST_REPLACE (trans); */ + + /* process the video data in the buffer in-place */ + return GST_FLOW_OK; +} + +% end |