When should I send a starting seek?

[Mathieu Duponchelle]

I can't really tell, but I would recommend trying to debug this yourself first :)

On Apr 20 2022, at 11:03 am, amindfv at mailbox.org wrote:
> On Tue, Apr 19, 2022 at 11:38:45PM +0200, Mathieu Duponchelle via gstreamer-devel wrote:
> > At a low level, the usual solution is to preroll the pipeline, then once that is done send a flushing seek.
> >
> > nleurisource can take care of this process for you, for instance:
> > gst-launch-1.0 nleurisource uri=file:///home/meh/Videos/the-great-gatsby-720p-trailer.mov inpoint=10000000000 duration=10000000000 caps="video/x-raw(ANY)" ! videoconvert ! autovideosink
> > Adapt to your use case as necessary :)
>
> Thanks very much for your response! I find nleurisource works well with `gst-launch`, but when I replace "uridecodebin" with "nleurisource" in my .c file, I get an error:
> Error received from element qtdemux1: Internal data stream error
> Is there a clear sign from that error where the problem is? Or should I share my code?
> Thanks,
> Tom
>
>
> > On Apr 19 2022, at 10:26 pm, amindfv--- via gstreamer-devel <gstreamer-devel at lists.freedesktop.org> wrote:
> > > I've built a pipeline that looks something like this
> > >
> > > uridecodebin -\
> > > >- filter - videoconvert - autovideosink
> > > uridecodebin -/
> > >
> > > (I can provide code if needed)
> > > Which works well. My problem comes in, though, when I want to start the two uridecodebins at a certain point in their files (for example, starting 10 seconds in and running for 30 seconds).
> > > I've been sending a segment seek event (to each uridecodebin) immediately after linking the uridecodebin video pad to the filter, but I get segfaults and other errors, e.g.:
> > > gst_segment_clip: assertion 'segment->format == format' failed
> > > and
> > > gst_video_codec_frame_unref: assertion 'frame->ref_count > 0' failed
> > > What's the correct way to construct a graph that begins partway into a decoded file?
> > > Thanks!
> > > Tom
> > >
> >
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20220420/fd791944/attachment.htm>