<div dir="ltr"><div><div><div><div><div><div><div><div>Thanks Stefan for all the clarification to my query.<br><br></div>Hi All,<br><br></div>I am currently working on a use case to enable recording of video stream on an event, we are interested to record for time duration (time of event ) +/- Delta, where Delta is the duration in sec.<br><br></div>For this, I created a Gstreamer pipe line to show the live stream on the screen and also record the compressed video with delta = 30 sec is created with ,now this is not working for me. I am to see the live video from the web-cam but recorded output.avi file size is 0 bytes. <br><br></div>gst-launch-0.10 -v v4l2src device=/dev/video0 ! video/x-raw-yuv,width=640,height=480 ! ffmpegcolorspace ! tee name=t ! queue ! autovideosink t. ! jpegenc ! avimux name=mux ! queue max-size-buffers=0 max-size-time=0 max-size-bytes=0 min-threshold-time=30000000000 ! filesink location=output.avi<br><br></div>Can any one suggest a better way to do this task.<br><br></div>Also can any one share info on plug-in, which take care of wear leveling in case of continuous recording on a hard disk.<br></div>I have came across TI DVR File Format : <a href="http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/129931">http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/129931</a><br><br></div>Do Gstreamer has a mechanism to do anything similar activity. <br><div><div><div><br>
<div><div>Can any one comment on Gstreamer daemon plug-in, this seems to make life easier for programmer, is this code production ready. <br><a href="https://github.com/RidgeRun/gstd/wiki/Building-gstreamer-daemon">https://github.com/RidgeRun/gstd/wiki/Building-gstreamer-daemon</a><br></div><div><br></div><div>Thanks for your valuable time.<br><br></div><div>Ratheendran<br></div><div><div><div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Jan 11, 2015 at 12:35 AM, Stefan Sauer <span dir="ltr"><<a href="mailto:ensonic@hora-obscura.de" target="_blank">ensonic@hora-obscura.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"><span class="">
<div>On 01/10/2015 07:22 PM, Ratheendran R
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<p style="margin-bottom:0cm;line-height:100%">Hello All,</p>
<p style="margin-bottom:0cm;line-height:100%"><br>
</p>
<p style="margin-bottom:0cm;line-height:100%">I am new to
gstreamer frame work, so excuse me if I am putting any basic
question
in the forum.</p>
<p style="margin-bottom:0cm;line-height:100%"><br>
</p>
<p style="margin-bottom:0cm;line-height:100%">I have some
technical/license side query on gstreamer framework.</p>
<p style="margin-bottom:0cm;line-height:100%"><br>
</p>
<p style="margin-bottom:0cm;line-height:100%">1. We are planing
to
use Gstreamer ported by freescale on imx6, so my question is
can we
use gstreamer on the production system. Any legal obligations?</p>
</div>
</blockquote></span>
GStreamer is LGPL and many plugins are as well. An exception are
e.g. plugins of the gst-plugins-ugly module. For legal advice better
contact a lawyer though!<span class=""><br>
<blockquote type="cite">
<div dir="ltr">
<p style="margin-bottom:0cm;line-height:100%">2. How many
pipeline
is possible from a single gstreamer source element. I want a
single source to sink the video sceen as well as the write to
a circullar buffer.<br>
</p>
</div>
</blockquote></span>
You can use the tee element to create branches in the graph. E.g.
camerabin is a high level element that uses one camera source and
e.g. shows the video on screen and records it at the same time.<span class=""><br>
<blockquote type="cite">
<div dir="ltr">
<p style="margin-bottom:0cm;line-height:100%">3. We want to
store
the encoded video in a circular buffer based on time stamp and
latter would like to retrive the samples of frames based on
the time
stamp, I would like to parse the same video stroed in the
circular
buffer and create a new video file based on sampled frames.</p>
</div>
</blockquote></span>
I am not following. A queue element could keep a backlog of frames,
but would *not* offer convenient random access.<span class=""><br>
<blockquote type="cite">
<div dir="ltr">
<p style="margin-bottom:0cm;line-height:100%"> -I would like to
know does the existing gstreamer pipeline make all the things
possible. </p>
<p style="margin-bottom:0cm;line-height:100%"> </p>
<p style="margin-bottom:0cm;line-height:100%"> -Do any one know
of
the existing application to which I can take a look and start
my
activity.</p>
</div>
</blockquote></span>
Each git module has a tests/examples directory.<br>
Stefan<br>
<blockquote type="cite"><span class="">
<div dir="ltr">
<p style="margin-bottom:0cm;line-height:100%"><br>
</p>
<p style="margin-bottom:0cm;line-height:100%">Thanks for you
time to look into my queries.</p>
<p style="margin-bottom:0cm;line-height:100%"><br>
</p>
<p style="margin-bottom:0cm;line-height:100%">Regards,</p>
<p style="margin-bottom:0cm;line-height:100%">Ratheendran<br>
</p>
</div>
<br>
<fieldset></fieldset>
<br>
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