Good day everyone,
I'm trying to learn how to implement a gstreamer plugin. The first step:
I downloaded gsttransform template, compiled it and launched with the
following command:
gst-launch-1.0 videotestsrc ! mytransform ! autovideosink.
Everything works fine, I see video.
But I need the copy transformation, so I defined the transform function:
static GstFlowReturn gst_my_transform_transform(GstBaseTransform * base,
GstBuffer *inbuf, GstBuffer *outbuf).
The implementation is simple:
......
outbuf = gst_buffer_copy_deep(inbuf);
....
But there is a problem, now i see a broken image. Can you tell me, what
I did wrong?
The next question is about caps. I'm going to use application/x-rtp
buffers as an input data. Do I need to set caps for them, or will ANY be
sufficient?
My final goal is to write a plugin that sets rtp extension headers (NTP
time). I plan to write a transform plugin that will be placed after pay
elements (rtph264pay etc) and will set the headers. Are there any
examples of such transformation?
Best regards,
Vadim
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