On 10/16/2016 11:34 PM, Pander wrote:
> On 10/16/2016 07:06 PM, Pander wrote:
>> Hi all,
>>
>> As follow up on
>>
https://lists.freedesktop.org/archives/gstreamer-devel/2016-October/060868.html>> a new post. I have also looked at livav-tools and mplayer but these have
>> much less support for USB cameras formats.
>>
>> So gst-launch is only for testing, hence I am looking for an extremely
>> simple live player based on gst and written in C. When I look at the
>> tutorial, I see that parsing the pipeline is also used there:
>>
>>
http://docs.gstreamer.com/pages/viewpage.action?pageId=327735>>
>> Does that mean that this is also not the fastest way? Note that I want
>> to deploy the solution on Raspberry Pis without X, so it must as fast as
>> possible. Do I simply put in line number 12 the pipeline I need? Or do I
>> omit the parsing and connect with lower lever functions the source to
>> the sink?
>>
>> All I need is
>> gst-launch-1.0 -q v4l2src ! autovideosink
>> or
>> gst-launch-1.0 -q v4l2src device=/dev/video1 ! autovideosink
>>
>> (The full-screen part I postpone. As I run it from the command-line
>> without X, I do not have a widget to embed to sink in.)
Implemented the arguments and scaling. This has all been a good learning
experience getting to understand GST and develop with it.
Still need help on getting width and height from the sink. Please see
https://github.com/z25/gstcam/blob/master/src/gstcam.c#L135Also, I am looking for a sponsor/reviewer to get this application ridden
from all warnings from ./check.sh in order to suitable to become part of
an existing DEB for Debian (and Rasbian) and Ubuntu.
It might be a suitable to refer to as a simple example from the
tutorial's point of view. The application too has its raison d'être as a
simple local camera video player without network for anyone who needs it.
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