| Message ID | 20230324181247.302586-3-nicolas@ndufresne.ca |
|---|---|
| State | Accepted |
| Headers | show |
| Series |
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| Related | show |
Le vendredi 24 mars 2023 à 14:12 -0400, Nicolas Dufresne a écrit : > From: Nicolas Dufresne <nicolas.dufresne@collabora.com> > > As libcamerasrc reports some latency, a queue is needed in order to store the > data in case the buffers has been produced slightly ahead of our reported > latency. It could be nice to consider this patch independent from the rest. Currently, unless your camera has less then a frame of latency, the GStreamer pipeline emit a warning, and you can also notice quite some jitter. > > Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> > --- > README.rst | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/README.rst b/README.rst > index 34b6b49f..52cde91c 100644 > --- a/README.rst > +++ b/README.rst > @@ -133,7 +133,7 @@ onto the OpenGL accelerated display element on your system. > > .. code:: > > - gst-launch-1.0 libcamerasrc camera-name="Camera 1" ! glimagesink > + gst-launch-1.0 libcamerasrc camera-name="Camera 1" ! queue ! glimagesink > > To show the first camera found you can omit the camera-name property, or you > can list the cameras and their capabilities using: > @@ -164,7 +164,7 @@ the following example could be used as a starting point: > > gst-launch-1.0 libcamerasrc ! \ > video/x-raw,colorimetry=bt709,format=NV12,width=1280,height=720,framerate=30/1 ! \ > - jpegenc ! multipartmux ! \ > + queue ! jpegenc ! multipartmux ! \ > tcpserversink host=0.0.0.0 port=5000 > > Which can be received on another device over the network with:
Hi Nicolas On Fri, Mar 24, 2023 at 02:12:46PM -0400, Nicolas Dufresne via libcamera-devel wrote: > From: Nicolas Dufresne <nicolas.dufresne@collabora.com> > > As libcamerasrc reports some latency, a queue is needed in order to store the > data in case the buffers has been produced slightly ahead of our reported > latency. > > Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> I think we can take this is outside of the larger series in discussion > --- > README.rst | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/README.rst b/README.rst > index 34b6b49f..52cde91c 100644 > --- a/README.rst > +++ b/README.rst > @@ -133,7 +133,7 @@ onto the OpenGL accelerated display element on your system. > > .. code:: > > - gst-launch-1.0 libcamerasrc camera-name="Camera 1" ! glimagesink > + gst-launch-1.0 libcamerasrc camera-name="Camera 1" ! queue ! glimagesink > > To show the first camera found you can omit the camera-name property, or you > can list the cameras and their capabilities using: > @@ -164,7 +164,7 @@ the following example could be used as a starting point: > > gst-launch-1.0 libcamerasrc ! \ > video/x-raw,colorimetry=bt709,format=NV12,width=1280,height=720,framerate=30/1 ! \ > - jpegenc ! multipartmux ! \ > + queue ! jpegenc ! multipartmux ! \ > tcpserversink host=0.0.0.0 port=5000 > > Which can be received on another device over the network with: > -- > 2.39.2 >
diff --git a/README.rst b/README.rst index 34b6b49f..52cde91c 100644 --- a/README.rst +++ b/README.rst @@ -133,7 +133,7 @@ onto the OpenGL accelerated display element on your system. .. code:: - gst-launch-1.0 libcamerasrc camera-name="Camera 1" ! glimagesink + gst-launch-1.0 libcamerasrc camera-name="Camera 1" ! queue ! glimagesink To show the first camera found you can omit the camera-name property, or you can list the cameras and their capabilities using: @@ -164,7 +164,7 @@ the following example could be used as a starting point: gst-launch-1.0 libcamerasrc ! \ video/x-raw,colorimetry=bt709,format=NV12,width=1280,height=720,framerate=30/1 ! \ - jpegenc ! multipartmux ! \ + queue ! jpegenc ! multipartmux ! \ tcpserversink host=0.0.0.0 port=5000 Which can be received on another device over the network with: