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Old 12th June 2020, 07:16   #441  |  Link
gpower2
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Quote:
Originally Posted by tormento View Post
@gpower2

Sometimes I have to extract the same tracks from different files, where the only thing that changes is the file name.

In the mean time that you find a solution, could you expose the command line, such as mkvtoolnix-gui.exe does?

So I can create batch file, while you are thinking to how to automatize that.
Hi @tormento!

Since gMKVExtractGUI supports batch mode, I can't see the reason to expose the command line. For your scenario, you can add multiple files from different folders and use the context menu (right-click) and select the same track at once. You can even add jobs and run them at a later time as a batch.

To cut a long story short, current design in gMKVExtractGUI calculates the command line just before it executes it, so it's not easy to expose that beforehand wihout rewriting a significant portion of the current codebase.

If you can elaborate on your scenario, perhaps I can provide with a new functionality or improve the existing ones.

Thank you very much for your feedback!
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Old 12th June 2020, 18:07   #442  |  Link
Perenista
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This program is not extracting the audio properly. It's limiting a 14 h 57 min file into 2h31m54s.

This is the file I am talking about:
https://pastebin.com/MGHTc669

Also, check what I said here about it:
https://forum.doom9.org/showthread.php?t=175593&page=20

The entire 14h Matroska file is OK... I can listen to the entire audio track. It's just that I can't extract as WAV 100%. Why is it limiting to 2 hours?

EDIT: Trying this now: https://www.easytechguides.com/extra...rom-video.html

Last edited by Perenista; 12th June 2020 at 20:58.
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Old 12th June 2020, 18:24   #443  |  Link
stax76
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Maybe it has something to do with the wav format:

https://en.wikipedia.org/wiki/WAV#Limitations

I suggest to use ffmpeg and W64 format.

Last edited by stax76; 12th June 2020 at 18:28.
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Old 12th June 2020, 21:09   #444  |  Link
Perenista
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Quote:
Originally Posted by stax76 View Post
Maybe it has something to do with the wav format:

https://en.wikipedia.org/wiki/WAV#Limitations

I suggest to use ffmpeg and W64 format.
It worked. But I tried with Audacity first, as instructed in this site:

https://www.easytechguides.com/extra...rom-video.html



Was this the right option? I selected the first, Signed 16 bit PCM.

This is the MediaINFO from the resulted W64 file:

https://pastebin.com/L5nEiBqz

With ffmpeg this site only instructed me to use this command:

ffmpeg -i video.mkv -f w64 -ab 384000 -vn audio.w64

I'll assume only this is needed, right? 384000 was a figure I was thinking about if I wanted to convert to AAC (FDK).

In this case the original audio track had a bitrate of 1 536 kb/s. So the command line, I guess, it would look like this:

ffmpeg -i video.mkv -f w64 -ab 1536000 -vn audio.w64
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Old 20th September 2020, 23:15   #445  |  Link
fireattack
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Hi, I want to report a bug/inconsistency in the GUI.

When loading an input file, it shows two "delays" for any track.

According to https://sourceforge.net/p/gmkvextrac...read/ee13f7e1/ the first delay is relative to 0 timestamp and the second one is relative to the video.

The original comment only mentions audio track, so what about the video track?
Is the second delay still relative to the video (itself), or to the audio?

Either way, it doesn't seem to match with the behavior.

I made two videos to test: one with audio delayed for 2sec, one with video delayed for 2sec.

The first one (audio delay):



The video's second delay says "0ms", so it means it's NOT delay relative to audio, because otherwise it would be "-1978ms".

The second one (video delay):



Now, here video's second delay says "2000 ms", which means it's indeed relative to the audio. This is inconsistent with example 1.

Summary:

In both cases, the first delay of video track is consistently shows the delay relative to 0 timestamp.
In both cases, the first delay of audio track is consistently shows the delay relative to 0 timestamp.
In both cases, the second delay of audio track is consistently shows the delay relative to the video track.

However, the second delay of video track is inconsistent, it shows the delay relative to the audio in one, but not in another (it is not consistently relative to the video, either.)

Last edited by fireattack; 20th September 2020 at 23:22.
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extractor, gmkvextractgui, matroska, mkv, mkv extract, mkvextract, mkvextractgui

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