MeGUI: bug reports and feature requests

[wthreex]

Why does megui sometimes change the video framerate? some of my video is out of sync because of it.

I'd like make it as source , what is the avisynth code?

[LigH]

Please post a complete MeGUI session log of such a case, preferably including a full MediaInfo analysis of the source.

Where does your video source come from? May it have a variable framerate? - AviSynth can only handle constant frame rates. Some source plugins can resample the video to a constant frame rate, with the right parameters. But don't try that if it is not necessary; there are other possible reasons for a change. First we need to know details what you tried so far.

[wthreex]

Source MediaInfo (Frame rate mode: Variable:24.616 FPS)

https://pastebin.com/gDtFQDFG

Full Log:

https://pastebin.com/PJc3MnX0

My Profile:

http://www82.zippyshare.com/v/Tsq80Ji2/file.html

Encode MediaInfo (Frame rate mode: Constant 24.617 FPS

https://pastebin.com/0LDdm5Fq

you right fps has changed to the Constant mode, What are the solutions to this problem?

[LigH]

Two possible solutions:

a) You may manually edit the generated AviSynth script to use the fpsnum/fpsden parameters in LwLibavVideoSource to resample the video to a constant and convenient frame rate. Disadvantage: Choppy playback due to inserted or skipped frames.

b) You may extract per-frame timecodes before converting, and restore them in your result. Disadvantage: I don't know details about it, and it is only supported for specific target containers. Please try to find more about this technique on your own (or have patience and wait for links provided by other members). This may require more manual labor outside MeGUI.

[Barough]

FFmpeg v3.3.3 binaries is now available @ Zeranoe's FFmpeg site
http://ffmpeg.zeranoe.com/builds/

[hello_hello]

Originally Posted by wthreex

Source MediaInfo (Frame rate mode: Variable:24.616 FPS)
Encode MediaInfo (Frame rate mode: Constant 24.617 FPS

you right fps has changed to the Constant mode, What are the solutions to this problem?

I'd try converting to a better constant frame rate. On it's own LSmash will just use the average frame rate. It might be worth going back to 29.970fps (replacing all the missing frames with duplicates) and then decimating as required.

LWLibavVideoSource("D:\video.mkv.lwi", fpsnum=30000, fpsden=1001)
TFM().TDecimate()

Alternatively, extract the timecodes from the source MKV with gMKVExtractGUI or MKVCleaver, then use the timecodes file to encode in variable frame rate mode..
If the timecodes file you extracted is called "timecodes.txt" (for example) you'd add it to the x264 custom command line section like this:

--tcfile-in "D:\timecodes.txt"

Save the encoder configuration and add the job to the queue as usual. The frame rate of the video as it's being decoded by LSMash is then irrelevant.

[Zetti]

MKVToolNix v15.0.0 is released.

[wthreex]

Add an option automatically remove subtitles from a video file. Sometimes there are a lot of subtitles attached to the video and manually erasing them with a bored amount. (OneClick Enocder):

[sneaker_ger]

Try to config OneClick profile, in languages tab move "[none]" to the left box (as only item) of the subtitle languages. I think that should do the trick.

[wthreex]

Yes, It's worked! thanks..

[Zathor]

Originally Posted by Zetti

MKVToolNix v15.0.0 is released.

Originally Posted by Barough

FFmpeg v3.3.3 binaries is now available @ Zeranoe's FFmpeg site
http://ffmpeg.zeranoe.com/builds/

Thanks, both have been updated

[GRKNGLR]

Hey guys,

I have a problem. Where is DirectShowSource on Avisynth SC? I want to use Lavfilters.

2761 [OneClick] + [AVS SC] select AviSource() or DirectShowSource() only if suitable

I saw it, I know. Is there a setting? How can I choose?

PS: Sorry, my english is very bad.

[LigH]

This change seems to make this choice only relevant if you select the One Click Encoder.

AviSource is only suitable if the source is an AVI (and possibly only necessary if it doesn't use a codec LibAV decoders can't handle reliably). And DirectShowSource will probably be offered only if nothing else is obviously more suitable (I guess...).

[hello_hello]

Originally Posted by GRKNGLR

Hey guys,

I have a problem. Where is DirectShowSource on Avisynth SC? I want to use Lavfilters.

I have the DirectShowSource option when opening m2ts files that way (MeGUI 2768 on XP). Is this one of those instances where the Haali Media Splitter needs to be installed? If those screenshots are taken from two versions of MeGUI running on the same PC, then I've no idea what's happening. When are AviSource() & DirectShowSource() deemed to be suitable?
That change seems to have the potential to be annoying.

Other than that, you can create your own DirectShowSource script to open the file in question, and use the script as the input video for the script creator.

[dissory]

@Zathor

When transcoding audio using OneClick, it shifts the audio tracks to the wrong position in the output file (even though tracks were in the right order while in the OneClick GUI).

I've included a sample file + steps to reproduce: https://mega.nz/#!ZHpjWIBI!VRLZnCWDy...xGVYaedT9rRY1Q

[Barough]

@ Zathor
New DGDecNV is out....

DGDecNV 2053 slipstream 111 (2017-08-28)
- Added an error popup for cases of filenames containing illegal characters
(or other cases of file open failure). Previously, it would fail silently.

[Zathor]

Originally Posted by GRKNGLR

2761 [OneClick] + [AVS SC] select AviSource() or DirectShowSource() only if suitable

MeGUI tries to open the source with these two options (AviSource for AVIs, rest with DS). If it fails (silently) then you do not have the option.

[Zathor]

Originally Posted by Barough

@ Zathor
New DGDecNV is out....

DGDecNV 2053 slipstream 111 (2017-08-28)
- Added an error popup for cases of filenames containing illegal characters
(or other cases of file open failure). Previously, it would fail silently.

Thanks, updated

[j8ee]

There's an issue with the generated .avs file for audio when indexing a video with 6 channel aac audio. In the scripts it says

# detected channels: 2 channels
# detected channel positions: 3/2/0.1

regardless of ffmsindex or l-smash being used. MeGUI throw warnings when encoding:

--[Warning] [2017-09-08 17:00:32] Channel count mismatch! The input file is reporting 2 channels and the AviSynth script is reporting 6 channels
--[Warning] [2017-09-08 17:00:32] Ignoring downmix because of the channel count mismatch

and the resulting encode ends up being multi-channel. Trying to encode an mp3 fails with the error message "Unsupported number of channels: 6"

Manually changing the .avs files to

# detected channels: 6 channels

makes everything work fine.

Using MeGUI 2768 development server

(By the way, is there an easy way of verifying that video/audio files actually are multi-channel without having any matching hardware for playback? A longer-than-normal google session only came up with tools and ways for checking playback and hardware, nothing for verifying the files.

Maybe not on topic, but I'm also curious of the big difference in bitrate for the resulting audio file, depending of the l-smash or ffms indexer being used, and other decoding methods. With the l-smash indexer the encoded 2-channel audio had 51 kbps, and with ffms it had 40 kbps. Just encoding the extracted aac file directly in MeGUI resulted in a 2-channel file with 66 kbps, and encoding in foobar2000 with it's downmix filter produced a file with 42 kbps. Encoding settings being the same of course. Is this all good and perfectly normal, especially the difference between l-smash and ffms indexers?)

[Morku]

Feature request:

1. Is it possible to support Hybrid shutdown for Windows 8 (and newer)? It should look like that:

shutdown.exe /s /hybrid /t 0

2. Is a more detailed GUI for x265 planed?

Thanks a lot!