timecodestamper after webrtcbin -> decodebin failed ?

[Michael]

Hello Thibault,

but what might be the reason and it caught my eye now because my latency is
ramping up from ms to ms, is that I get `framerate=(fraction)0/1`after the
decodebin which is linked to webrtcbin.

on_incoming_decodebin_pad:

video/x-raw, format=(string)I420, width=(int)640, height=(int)480,
interlace-mode=(string)progressive, multiview-mode=(string)mono,
multiview-flags=(GstVideoMultiviewFlagsSet)0:ffffffff:/right-view-first/left-flipped/left-flopped/right-flipped/right-flopped/half-aspect/mixed-mono,
pixel-aspect-ratio=(fraction)1/1, chroma-site=(string)jpeg,
colorimetry=(string)bt601, framerate=(fraction)0/1


[image: Bildschirmfoto 2020-05-12 um 18.52.04.png]

I will deliver the rest later.

Thanks, Michael


Am Mo., 11. Mai 2020 um 17:05 Uhr schrieb Thibault Saunier <
tsaunier at gnome.org>:

> Hello,
>
> I am not sure why it doesn't work, but could give us a way to reproduce
> easily or get us a backtrace (set G_DEBUG=fatal-criticals so that your app
> abort when this critical happens) and a `GST_DEBUG=5` debug log file?
>
> - Thibault
>
> On Fri, May 8, 2020 at 2:53 PM Michael <
> michael.riha+gstreamerMailingList at gmail.com> wrote:
>
>> Hello,
>>
>> I try to add a `timecodestamper` and a `timeoverlay` after a `decodebin`
>>
>> [image: Bildschirmfoto 2020-05-08 um 20.47.40.png]
>>
>> which I put after a `webrtcbin`
>>
>> def on_add_stream(self,element, pad):
>>
>> of a `webrtcbin`.
>>
>> But I always get
>>
>> ** (python3:1527): CRITICAL **: 18:44:43.253:
>> gst_video_time_code_add_frames: assertion 'gst_video_time_code_is_valid
>> (tc)' failed
>>
>> Why isn't that possible?
>> Or better why doesn't the webrtcbin -> decodebin offer a timestamp?
>>
>> Thanks in advance, Michael
>>
>>
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>> gstreamer-devel at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>
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