How to get GstVideoInfo from GstBuffer

[Baby Octopus]

Hi,

I'm adding GstPadProbe to the sink pad of textoverlay element to know its video resolution with the probe_type as GST_PAD_PROBE_TYPE_BUFFER

I'm getting GstBuffer *buffer in the callback. How can I extract GstVideoInfo fro GstBuffer?

Thanks

~BO

[Nicolas Dufresne-4]

Le mercredi 16 novembre 2016 à 04:23 -0800, Baby Octopus a écrit :
> I'm getting GstBuffer *buffer in the callback. How can I extract
> GstVideoInfo fro GstBuffer?

You can't. You need to track the GST_CAPS_EVENT. This is of type
GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM. Then you can use
gst_event_parse_caps() and gst_video_info_from_caps().

Nicolas
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