Setting module properties for a bin through CLI?

[Peter Maersk-Moller]

There seem indeed to be a mechanism to set the parameters for a submodule
of a bin on the command line. The following example sets the latency
parameter of the rtspsrc module

gst-launch-1.0 uridecodebin source::latency=1000
uri=rtsp://something/something .....

Perhaps there even exist documentation somewhere that documents what rules
to follow when doing so?

Best regards
Peter MM

On Wed, Nov 26, 2014 at 12:47 PM, Peter Maersk-Moller <pmaersk at gmail.com>
wrote:

> Hi.
>
> No takers on setting parameters for submodules of a bin unfortunately, so
> I will try to rephrase my question. My decodebin is using the following
> parameters
>
> /GstPipeline:pipeline0/GstURIDecodeBin:decoder/GstRTSPSrc:source/GstRtpBin:manager:
> latency = 2000
> /GstPipeline:pipeline0/GstURIDecodeBin:decoder/GstRTSPSrc:source/GstRtpBin:manager:
> ntp-sync = false
> /GstPipeline:pipeline0/GstURIDecodeBin:decoder/GstRTSPSrc:source/GstRtpBin:manager:
> use-pipeline-clock = false
> /GstPipeline:pipeline0/GstURIDecodeBin:decoder/GstRTSPSrc:source/GstRtpBin:manager:
> drop-on-latency = false
> /GstPipeline:pipeline0/GstURIDecodeBin:decoder/GstRTSPSrc:source/GstRtpBin:manager:
> buffer-mode = Slave receiver to sender clock
> /GstPipeline:pipeline0/GstURIDecodeBin:decoder/GstRTSPSrc:source/GstUDPSrc:udpsrc1:
> timeout = 5000000000
>
> Is it possible, with uridecodebin to set latency, ntp-sync etc. on the
> command line ?
> I tried something like this:
>
> gst-launch-1.0 uridecodebin GstRtpBin::latency=1000
>
> but that was not the answer. Does GStreamer have a mechanism to pass
> parameter settings from command line for a bin to its sub modules?
>
> Best regards
> Peter
>
> On Mon, Nov 24, 2014 at 11:15 AM, Peter Maersk-Moller <pmaersk at gmail.com>
> wrote:
>
>> Hi
>>
>> Is there a generic way for setting parameters on command line for the
>> modules that a bin such as decodebin/uridecodebin and other bins uses?
>>
>> One example:
>>
>>   gst-launch-1.0 uridecodebin uri=rtsp://something ! something ...
>>
>> Here uridecodebin will use rtspsrc and rtspsrc has a number of properties
>> such as latency, ntp-sync and others. When not set, these will default to
>> default values obviously. Is it possible in a generic way to set on command
>> line the value for latency and ntp-sync? Can't seem to find any
>> documentation on this.
>>
>> Best regards
>> Peter
>>
>
>
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