Rtsp range header

[emreoner]

Hi,

Is it possible to use seek function with range clock information. For ex.
how i can seek to 20200706T120000Z date. Is it possible?

When i try simple seek, it says not seekable.

Thank u.






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[Nicolas Dufresne-5]

Le jeudi 16 juillet 2020 à 03:47 -0500, emreoner a écrit :
> Hi,
>
> Is it possible to use seek function with range clock information. For ex.
> how i can seek to 20200706T120000Z date. Is it possible?
>
> When i try simple seek, it says not seekable.

Seeks are in stream-time, which is the time position in the stream, the start of
the stream is time 0. If you know the start time in wall clock time of your
file, it is a simple substraction to calculate the stream time. If your file has
TimeCode, you can always pre-roll first (pause) read the initial timecode and
then do the math.

>
> Thank u.
>
>
>
>
>
>
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[emreoner]

Thank u for your reply.
I want to explain the issue in detail.
I hava a playback rtsp stream url of a camera from Video Management System
and i need to playback specific time For ex. 20200706T120000Z.
I tried in sharprtsp (https://github.com/ngraziano/SharpRTSP)  demo
application while adding range header in rtsp play request. It is doing
playback properly. Without rtsp range header it is not working

In gstreamer how can i do playback or seek the specific time?



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[Mailing List SVR]

Hi,

in GStreamer you can connect the "before-send" signal and inside your
callback you can add the range header something like this:

gst_rtsp_message_add_header(message,GST_RTSP_HDR_RANGE,"header here");

if this is an ONVIF G recording you need to be sure to add this header
for GST_RTSP_PLAY method,

please referer to the docs here

https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-good/html/gst-plugins-good-plugins-rtspsrc.html#GstRTSPSrc-before-send

regards
Nicola

Il 17/07/20 11:24, emreoner ha scritto:

> Thank u for your reply.
> I want to explain the issue in detail.
> I hava a playback rtsp stream url of a camera from Video Management System
> and i need to playback specific time For ex. 20200706T120000Z.
> I tried in sharprtsp (https://github.com/ngraziano/SharpRTSP)  demo
> application while adding range header in rtsp play request. It is doing
> playback properly. Without rtsp range header it is not working
>
> In gstreamer how can i do playback or seek the specific time?
>
>
>
> --
> Sent from: http://gstreamer-devel.966125.n4.nabble.com/
> _______________________________________________
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> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

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[emreoner]

Hi,
Thank u for your reply,
We are using kurento for rtsp2webrtc feature.

Actually i am trying  in the gstrtspsrc.c class  which is from
gst-plugins-good project. You can see my code below. I put static value for
just trying range header but it is not affecting the result. add_header
function is not being called. What can be the issue?

gboolean
add_header (GstRTSPSrc     *gstrtspsrc, GstRTSPMessage *arg1, gpointer      
user_data){
    GstRTSPMessage request = { 0 };

    gst_rtsp_message_add_header (&request, GST_RTSP_HDR_RANGE,
"clock=20200719T070100Z-");

    return TRUE;

}

static GstRTSPResult
gst_rtspsrc_play (GstRTSPSrc * src, GstSegment * segment, gboolean async)
{
......
.....
....

 /* do play */
    res = gst_rtspsrc_init_request (src, &request, GST_RTSP_PLAY,
setup_url);

      g_signal_connect (src, "before-send",
                      (GCallback) add_header,"clock=20200719T070100Z-");



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