Video duration

Fri Feb 10 10:51:32 UTC 2017

Hello, Demitrios

Thank you for answer.

Ok. So, playbin can "see" all frames. This is already good news. Thank you.

However, i can not use it in my app. I need more control on a stream.

Yes, my original question was about duration. Because that what i need to continue working with file.

-It is a way to get duration from "not finished" file?

-Now playbin doing this?

Encoding pipeline is:

appsrc ! videoconvert ! jpegenc ! matroskamux ! filesink

Decoding pipeline is:

filesink ! matroskademux ! queue ! jpegdec ! videoconvert ! jpegenc ! appsink

My problem is in not correct handling of EOS. Sometimes, my app is not working well and i have files like this. You can name it bag.

But in any way i need to be able to process this files.

Can you help me, please?

Do you need more information from me?

Thank you in advance.

Mikl

________________________________
From: gstreamer-devel <gstreamer-devel-bounces at lists.freedesktop.org> on behalf of Dimitrios Katsaros <patcherwork at gmail.com>
Sent: Friday, February 10, 2017 10:09:07 AM
To: Discussion of the development of and with GStreamer
Subject: Re: Video duration

Like most things, answering questions is not as simple as a you are right or you are wrong.
Even typing out a 2 liner answer may have much more behind it. But to the problem:

Using the discoverer i can see that your file duration is: 0:00:00.400000000. So as you stated,
the video duration is wrong. Using playbin gives the same results as VLC:

gst-launch-1.0 playbin uri=file:///path/to/file//2017.02.03\ 13.53.34.mkv

So you can use that for playing the video. However, your original message was about duration
queries. And the reason the duration query is incorrect is because the file has been encoded
with that duration.

For future reference a description of your entire pipeline would help us to understand
what you are doing. If you want help fixing the file I would suggest writing a gst-launch
like description of the encoding pipe so we can see why there is a problem with the generated file.

Dimitrios

On Fri, Feb 10, 2017 at 8:58 AM, Mikl <michael.yarochkin at timetronics.be<mailto:michael.yarochkin at timetronics.be>> wrote:

Hello, Dimitros

Thank you for the answer.

Long story short:

I am recording video and subtitles from appsrc in MKV container.

In VLS video is full, but i don`t see length. So, it is corrupted. I did not handle EOS correctly. This i know.

But my question is "how to do the same as VLC".

Can you help me? Do you need more details? My source code? Video file?

PS

I am only half year busy with GStreamer. Of course my questions are "something very generic". I know concept, understand idea, but don`t familiar with details and can stuck on simple thing.

How i can stop asking them without You help? You are THE ONLY source of information.

What information do you need to from me "help me to find direction to solution"?

You will never know it without asking. Yes?

Even "try this..." can help.

PPS

My question was 2 weeks on board and already on second page. it was 13 views and no reaction.

And you see reaction after offer to kill someone. [??]

Sorry to do this.

I completely understand, what every one doing this in free time. As a hobby. Do you believe, what i am doing the same. Answering questions when on this mail list when i have time and know answer.

But, as a community we need to help to each other to grow! Isn't it?

My question is simple. It cost nothing for somebody who have years of experience to say "you are wrong in this. here is the link."

At least how i think and do.

Sorry for long complain. :)

Best regards, Mikl

________________________________
From: Dimitrios Katsaros [via GStreamer-devel] <ml-node+[hidden email]<http:///user/SendEmail.jtp?type=node&node=4681805&i=0>>
Sent: Thursday, February 9, 2017 4:27:01 PM
To: Michael Yarochkin
Subject: Re: Video duration

Well I hope you are not killing people, that doesn't help you get answers!

I would guess that the reason you didn't get an answer is that no one happened to see the question.
People have jobs and a life and there are a lot of questions posted daily on the mailing list and irc, We
can't answer everything!

As for your question, part of the reason that you are getting no replies is that you are asking something very generic
that can be attributed to any number of reasons. What kind of pipeline are you using? What kind of pipeline are
you using to record the file?

Dimitrios

On Thu, Feb 9, 2017 at 9:39 AM, Mikl <[hidden email]<http:///user/SendEmail.jtp?type=node&node=4681786&i=0>> wrote:
Hello, Readers

Can you inform me, please, who i need to kill, to attract attention to my
question?
Thank you.

http://gstreamer-devel.966125.n4.nabble.com/Wrong-file-duration-td4681702.html

Mikl

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