Gstreamer pipeline through OpenCV for H264 encoded video file

[Martin Vachovski]

Sorry... didn't mean to omit the autovideoconvert...


The pipeline I meant is to be read:


appsrc ! video/x-raw,format=YUY2,width=320,height=240,framerate=30/1 ! autovideoconvert ?!  v4l2video1h264enc  ....


Cheers

Martin


________________________________
From: gstreamer-devel <gstreamer-devel-bounces at lists.freedesktop.org> on behalf of Martin Vachovski <Martin.Vachovski at skytek.com>
Sent: Friday, August 25, 2017 11:09 AM
To: gstreamer-devel at lists.freedesktop.org; simo zz
Subject: Re: Gstreamer pipeline through OpenCV for H264 encoded video file


One quick thing I can suggest is to try to specify the CAPS before the autovideoconvert element.

Otherwise there might be problems with the negotiation and starting of the pipeline

something like:


appsrc ! video/x-raw,format=YUY2,width=320,height=240,framerate=30/1 !   v4l2video1h264enc  ....


Or whatever format you're getting the videoframes  in from the appsrc, try to specify as many details as possible


Cheers

Martin


________________________________
From: gstreamer-devel <gstreamer-devel-bounces at lists.freedesktop.org> on behalf of simo zz <simon.zz at yahoo.com>
Sent: Friday, August 25, 2017 10:58 AM
To: gstreamer-devel at lists.freedesktop.org
Subject: Gstreamer pipeline through OpenCV for H264 encoded video file

Hi all,

I am working on an IP application working with OpenCV and I need to generate an H264 encoded videos.
OpenCV uses GStramer to for this task, initializing the OpenCV VideoWriter object with a GStramer pipeline. In turns it should passthe frames GStramer which should write the video..

The actual pipeline I am using for this task:

"appsrc ! autovideoconvert ! v4l2video1h264enc extra-controls=\"encode,h264_level=10,h264_profile=4,frame_level_rate_control_enable=1,video_bitrate=2000000\" ! h264parse ! rtph264pay config-interval=1 pt=96 ! filesink location=file.pm4"

But it's neither generating the video. I tried many pipelines without successful results..
What is the correct pipeline I must use ?

Thank you in advance,
Regards,
Simon
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20170825/c569ce65/attachment.html>