[PATCH v1 2/2] gst: Document libcamerasrc multi stream usage
Kieran Bingham
kieran.bingham at ideasonboard.com
Thu May 23 01:08:02 CEST 2024
Quoting Nicolas Dufresne (2024-05-22 21:39:24)
> From: Nicolas Dufresne <nicolas.dufresne at collabora.com>
>
> This adds documentation and an example using gst-launch-1.0.
>
> Signed-off-by: Nicolas Dufresne <nicolas.dufresne at collabora.com>
> ---
> README.rst | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/README.rst b/README.rst
> index 1da7a3d6..d605182b 100644
> --- a/README.rst
> +++ b/README.rst
> @@ -178,6 +178,22 @@ Which can be received on another device over the network with:
> gst-launch-1.0 tcpclientsrc host=$DEVICE_IP port=5000 ! \
> multipartdemux ! jpegdec ! autovideosink
>
> +The GStreamer element also supports multiple streams. This is achieved by
> +requesting additionnal source pads. Downstream caps filteris can be used
s/additionnal/additional/
s/filteris/filters/
> +to choose specific parameters like resolution and pixel format. The pad
> +property ``stream-role`` can be used to select a role.
> +
> +The following example displayis a 640x480 view finder while streamiing JPEG
s/displayis/displays/
> +encoded 800x600 video. You can use the receiver pipleine above to view the
> +remote stream from another device.
> +
> +.. code::
> +
> + gst-launch-1.0 libcamerasrc name=cs src::stream-role=view-finder src_0::stream-role=video-recording \
> + cs.src ! queue ! video/x-raw,width=640,height=480 ! videoconvert ! autovideosink \
> + cs.src_0 ! queue ! video/x-raw,width=800,height=600 ! videoconvert ! \
> + jpegenc ! multipartmux ! tcpserversink host=0.0.0.0 port=5000
> +
Awesome - thank you - that demonstrates one of the purposes of multiple
stream support - and how to use it with gstreamer!
Reviewed-by: Kieran Bingham <kieran.bingham at ideasonboard.com>
> .. section-end-getting-started
>
> Troubleshooting
> --
> 2.45.0
>
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