Android is strutting for Real Time Stream

[Olivier Crête]

Hi,
The two seconds are from rtspsrc, you can set the "latency" property to
something reasonable like 200ms by connecting to the "source-setup"
signal on playbin and setting the latency property to 200 if it's
rtspsrc.
You can verify the automatically calculated latency by setting
GST_DEBUG=bin:4
Setting the pipeline latency manually will indeed produce problems if
you set a lower value than the minimal one.
Olivier
On Wed, 2017-09-20 at 14:13 -0300, Azure1 Sureale wrote:
> Hello, I'm trying to have an Android Player receiving a RTSP stream
> from the internet and play it with very low latency. I'm using
> Tutorial 5 from the GStreamer home. Without any change my stream has
> a latency about 2 seconds (worst than Vitamio that I was using
> previously).
> 
> With futher investigation we realized we could change the latency to
> 0 in the pipeline using this code:
> 
> ****************************************************************
> data->pipeline = gst_parse_launch("playbin", &error);   
> gst_pipeline_set_latency(data->pipeline,0); //This is what I wrote
>     if (error) {    gchar *message = g_strdup_printf("Unable to build
> pipeline: %s", error->message);    g_clear_error (&error);   
> set_ui_message(message, data);    g_free (message);    return NULL; 
> }
> ****************************************************************
> 
> Now the stream is strutting, alas dropping frames. However the stream
> is faster than the base code.
> Based on other questions, I tried to add rtpjitterbuffer into the
> pipeline but seems that is not that simple.
> 
> How can I construct or change the pipeline to have low latency and no
> strutting?
> 
> _______________________________________________
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> gstreamer-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
-- 
Olivier Crête
olivier.crete at collabora.com
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