clever FFmpeg-GUI, small FFmpeg UI, fully portable, no installation.

[Findu]

@ ProWo


Thank you very much for so many improvements and fixes

I found a few things in the last beta that also exist here.


3.3.7 Feedback

Bug in "Video encoding" > Various > "Burn in subtitle"
If you change a value and click Cancel, (EDIT: and click Encode,) the app will stop or crash!
Removing the Cancel button might fix the problem!

---

"Next crop" in "Crop detection" page produces negative values ​​that are not allowed!
After a few tries the letterboxing position is found, for example. Which is good!
Can you please prohibit the entry of negative values ​​here as well?

---

Bug in "Join tracks" check
The warning only appears for two tracks if the first track is 0.
All other incorrect entries produce errors.
Because the order must be in ascending order without any gaps.

---

Error in Video encoding, Frame size
Like for Various > Crop, only values ​​that are multiples of 2 are allowed.

[ProWo]

Bug in "Video encoding" > Various > "Burn in subtitle"
If you change a value and click Cancel, (EDIT: and click Encode,) the app will stop or crash!
Removing the Cancel button might fix the problem!

Have already found the reason. Clicking cancel must deselect the burn in subtitle checkbox.
In the meantime deselect it manually after clicking cancel.
Will be fixed.

"Next crop" in "Crop detection" page produces negative values ​​that are not allowed!
After a few tries the letterboxing position is found, for example. Which is good!
Can you please prohibit the entry of negative values ​​here as well?

The values are read by ffmpeg itself and i cannot change them.
This only happens if the video is black at the point being examined. Simply press next crop a few times until the values remain the same.

Bug in "Join tracks" check
The warning only appears for two tracks if the first track is 0.
All other incorrect entries produce errors.
Because the order must be in ascending order without any gaps.

I don't know exactly what you mean here. I can't find a bug.
There is an internal check that compares all videos with the first one in terms of codecs and number of streams.
If differences to the video in 0 are found, the video cannot be added because then join is not possible.

Error in Video encoding, Frame size
Like for Various > Crop, only values ​​that are multiples of 2 are allowed.

To prevent this, I would have to convert the textboxes to numericupdown controls, and that's not worth the effort.
I'll see if I can add a note about this in the tooltips.

[Findu]

>> "Next crop" in "Crop detection" page produces negative values ​​that are not allowed!
After a few tries the letterboxing position is found, for example. Which is good!
Can you please prohibit the entry of negative values ​​here as well?
> The values are read by ffmpeg itself and i cannot change them.
This only happens if the video is black at the point being examined. Simply press next crop a few times until the values remain the same.

Good to know!
You could hide the "OK, done" button while negative values appear.
EDIT: As the values get transmitted to the "Video encoder" page and cause problems.

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>> Bug in "Join tracks" check
> I don't know exactly what you mean here. I can't find a bug.
There is an internal check that compares all videos with the first one in terms of codecs and number of streams.
If differences to the video in 0 are found, the video cannot be added because then join is not possible.

Sorry, a screenshot would help too!

[Attachment 84836 - Click to enlarge]

1. If the list is empty and you click join you get an error.
2. And the warning window only appears for two tracks if the first track is 0.
All other incorrect entries produce errors.
Because the order must be in ascending order without any gaps.
3. And the Join button stays hidden if something went wrong.

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>> Error in Video encoding, Frame size
Like for Various > Crop, only values ​​that are multiples of 2 are allowed.
>To prevent this, I would have to convert the textboxes to numericupdown controls, and that's not worth the effort.
I'll see if I can add a note about this in the tooltips.

Okay.

Encode or To Batch does not work entering values in Pad width or height

[Attachment 84837 - Click to enlarge]

[ProWo]

>>
You could hide the "OK, done" button while negative values appear.

Will hide OK, done and Preview button with negative values.

1. If the list is empty and you click join you get an error.

Will hide the Join button with empty list.

2. And the warning window only appears for two tracks if the first track is 0.
All other incorrect entries produce errors.
Because the order must be in ascending order without any gaps.

Tested, this is a bug and will be fixed.

Encode or To Batch does not work entering values in Pad width or height

This is intentional, as both values (width and height) must always be specified for padding. I will also hide the To batch button.

[Findu]

@ ProWo

3.3.7 Feedback 2

NEW:
I found a little mistake with the chapter page.
When you close ffplay, the “How to use the cut function” window appears above the "Chapters help" window.
I moved it so you can see it!

[Attachment 84866 - Click to enlarge]

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>> Error in Video Encoding page, Frame size
Like for Various > Crop, only values ​​that are multiples of 2 are allowed.
> To prevent this, I would have to convert the textboxes to numericupdown controls, and that's not worth the effort.
I'll see if I can add a note about this in the tooltips.

The tooltips could contain:
The min/max values varies depending on the encoder/container and only even values are admitted.

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>> Encode or To Batch does not work entering values in Pad width or height
> This is intentional, as both values (width and height) must always be specified for padding. I will also hide the To batch button.

Good to know as I didn't expect to enter the frame width value in pad width when I just want letterboxing!
Could it be useful to automatically fill the empty pad field once (with the frame's value), when you enter a value in the empty other field the very first time?

By the way!
The Preview function in Video Encoding > Various works well when makeing changes to the frame and pad size.
Unfortunately it's a bit hidden!

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Audio Encoding page > Channels > Join tracks
To make it easier to understand, the last sentence of the page description could be changed as follows:
Drag & drop the files into the box below in ascending order without gaps.

---

NEW suggestion: multiplex drag & drop area

One of the simplest user tasks is to multiplex a source file to fix playback problems.
The user does not make any changes to the source file.
But it takes 7 forward clicks to perform this task.
So what about the idea of a drag & drop area on the "Select source file" page to perform a automatic unattended normal multiplex?
You drop a file into this area, the "Select source file page" stays open, you might read a text "processing…" in this area box, complete, and ready for the next drop!

[Attachment 84867 - Click to enlarge]

EDIT: Or after dropping a file as usual, a new button will appear that does the same thing as described above.

[Attachment 84872 - Click to enlarge]
The button is hidden after the muxing process and appears after a new file is loaded or dropped.

[ProWo]

NEW:
I found a little mistake with the chapter page.
When you close ffplay, the “How to use the cut function” window appears above the "Chapters help" window.

Will be fixed.

>> Error in Video Encoding page, Frame size
Like for Various > Crop, only values ​​that are multiples of 2 are allowed.

I have built in checks that odd numbers are not accepted. The info in the tooltip is added too.

Could it be useful to automatically fill the empty pad field once (with the frame's value), when you enter a value in the empty other field the very first time?

Will be done.

Audio Encoding page > Channels > Join tracks
To make it easier to understand, the last sentence of the page description could be changed as follows:
Drag & drop the files into the box below in ascending order without gaps.

Will add a line that the channel numbers must be sequential, starting with 0.

NEW suggestion: multiplex drag & drop area
One of the simplest user tasks is to multiplex a source file to fix playback problems.
The user does not make any changes to the source file.
But it takes 7 forward clicks to perform this task.

If you drag the source file, it takes 3 clicks for normal multiplex and 5 for simple remux.
That remains as it is.

[Findu]

@ ProWo

3.3.7 Feedback 3

> If you drag the source file, it takes 3 clicks for normal multiplex and 5 for simple remux.
That remains as it is.

Caught! I count every click form app start till app close

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NEW: Video stream > Resize
1. A "Keep aspect ratio" option would be helpful when changing the frame size.
Changes to the frame width will automatically adjust the height and vice versa.

2. Pad button stay hidden when entering or change values
Enter Pad height with greater value (button apper) and pad height with lower or equal value (button disapper). It appears only if you change any to a still greater value.
I think the button should stay visible as long as one value is greater than the frame. To make later changes.

[Attachment 84915 - Click to enlarge]

3. Your app/ffmpeg is able to crop, resize and pad a video stream in one encoding run. Cool!
For example crop to remove a TV logo, resize and letterboxing.
But the video preview can't handle all combinations of crop, resize or pad.
But it is ok as the usual modifications work well with ffplay.

[ProWo]

NEW: Video stream > Resize
1. A "Keep aspect ratio" option would be helpful when changing the frame size.
Changes to the frame width will automatically adjust the height and vice versa.

2. Pad button stay hidden when entering or change values
Enter Pad height with greater value (button apper) and pad height with lower or equal value (button disapper). It appears only if you change any to a still greater value.
I think the button should stay visible as long as one value is greater than the frame. To make later changes.

I've already recoded this part in v3.3.7.01. Wait and see if it's published.

3. Your app/ffmpeg is able to crop, resize and pad a video stream in one encoding run. Cool!
For example crop to remove a TV logo, resize and letterboxing.
But the video preview can't handle all combinations of crop, resize or pad.

Tested. Crop+resize+pad is handled correctly in the preview. Can't confirm your affermation.

[ProWo]

Newest beta (v3.3.7.01), online now.
(Changelog will follow in the next full release).

[Findu]

@ ProWo

3.3.7.01 Feedback

Audio Encoding > pcm > extract/join tracks
1. When you switch from "join tracks" to "extract tracks", the extract button does not appear. Although nothing has been extracted yet. Switch to 7.1 and back bring the button back.

2. Extracted files remain. So when you extract tracks again, the Abort button does not react and you have to close the app.

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>> Video Encoding page, Frame/Pad frame size
> I have built in checks that odd numbers are not accepted.

1. The round off to even values works well. Thanks.

2. The min/max frame values varies depending on the encoder/profile level/container.
So ffmpeg will report errors when you are out of range. But it is far too complicated to check all limit values. Therefore, this is not a real problem.

---

>> The "video encoding preview" can't handle all combinations of crop, resize or pad.
> Tested. Crop+resize+pad is handled correctly in the preview. Can't confirm your affermation.

1. Simple example: I use a 1920x1080 pixel Display with native resolution.
A 1920x1080 source video is showen in a 1280x720 preview frame.
When I enter 1920x1080 or larger amounts for pad, the black preview window is 1920x1080 (or a bit more but not always the pad size) with a 1280x720 video in the upper left corner.

[Attachment 84952 - Click to enlarge]

2. Can you please show the "ffplay player controls" window also at the "Video encoding" page?

[ProWo]

Audio Encoding > pcm > extract/join tracks
1. When you switch from "join tracks" to "extract tracks", the extract button does not appear. Although nothing has been extracted yet. Switch to 7.1 and back bring the button back.

Wil be fixed.

2. Extracted files remain. So when you extract tracks again, the Abort button does not react and you have to close the app.

Will add a file check; if file exists, the extraction is blocked.

>> The "video encoding preview" can't handle all combinations of crop, resize or pad.

Retested, you are right. Fixing this is quite time-consuming; will be done anyway.

2. Can you please show the "ffplay player controls" window also at the "Video encoding" page?

Will be done.

[wkrick]

I'm having some trouble creating chapters when joining files.

I have a web series that has 37 parts (only a few minutes each) and I'm trying to join them together into a single MP4 with chapters.

I start by clicking "Select Source" and choosing the MP4 for chapter 01.
Then I go to "Main Page" and click "Join" and "Add Files" and select the MP4s for chapters 2 through 37.
At this point, the screen only shows 36 chapters (index 0 through 35)
I check the checkbox for "Insert Chapters" and then click "Join".
I get the popup to edit the Chapter names and when I edit chapters.txt, there's only 36 chapters in the file.

I'm joining 37 files, I'd like to be able to have a chapter for each file.
Is this a bug or am I doing something wrong?

EDIT: I found a sort-of workaround. Basically, I created a 1 second long "dummy" mp4 and select that as the source initially and then join the 37 chapters to that. This lets me edit the titles for all 37 chapters but the chapters are all off by 1 second. So it's not really optimal.

[ProWo]

I'm having some trouble creating chapters when joining files.

I have a web series that has 37 parts (only a few minutes each) and I'm trying to join them together into a single MP4 with chapters.

I start by clicking "Select Source" and choosing the MP4 for chapter 01.
Then I go to "Main Page" and click "Join" and "Add Files" and select the MP4s for chapters 2 through 37.
At this point, the screen only shows 36 chapters (index 0 through 35)
I check the checkbox for "Insert Chapters" and then click "Join".
I get the popup to edit the Chapter names and when I edit chapters.txt, there's only 36 chapters in the file.

I'm joining 37 files, I'd like to be able to have a chapter for each file.
Is this a bug or am I doing something wrong?

First of all, use v3.3.7 or newer. In the older versions, the chapter times are incorrect.
Your problem is based on a misunderstanding.
You load part 1, but when you switch to the join grid, you see that the grid is empty. Part 1 is not present here.
So you have to add all 37 parts (regardless of the video loaded at the start). Then 37 chapters will also be created.

[wkrick]

First of all, use v3.3.7 or newer. In the older versions, the chapter times are incorrect.

Yep. I'm using v3.3.7

Your problem is based on a misunderstanding.
You load part 1, but when you switch to the join grid, you see that the grid is empty. Part 1 is not present here.
So you have to add all 37 parts (regardless of the video loaded at the start). Then 37 chapters will also be created.

I see. That's not very intuitive for new users. Why make users add a file at the beginning at all if it's never used? Just have a button to jump into the join grid right from the main screen or something similar.

[ProWo]

I see. That's not very intuitive for new users. Why make users add a file at the beginning at all if it's never used? Just have a button to jump into the join grid right from the main screen or something similar.

You're right. Will add a button to jump directly to the join grid.

[ProWo]

Newest beta (v3.3.7.02), online now.
(Changelog will follow in the next full release).

[Findu]

@ ProWo

3.3.7.02 Feedback

>> The "video encoding preview" can't handle all combinations of crop, resize or pad.

The video preview windows with pad values plays correcly.
Tested on native 1920x1080 & 3840x2160 with usual source resolutions.
That's good!

But now, a source video (without crop/pad) plays in a 1:1 preview window.
You see only a section of the source video if the native resolution is smaller.

I think it would be better to scale all preview windows down to fit into the desktop resolution.
Like you do with pad values.

[ProWo]

The video preview windows with pad values plays correcly.
Tested on native 1920x1080 & 3840x2160 with usual source resolutions.
That's good!

But now, a source video (without crop/pad) plays in a 1:1 preview window.
You see only a section of the source video if the native resolution is smaller.

>1280 will scaled down to 1280.

[Findu]

@ ProWo

Please take a look:

Laptop with native 1920x1080
Video stream > Keep size (or Resize without changes) > Various > Preview

Screenshot with source 1280x720

[Attachment 85012 - Click to enlarge]

source 1920x1080

[Attachment 85013 - Click to enlarge]

source 3840x2160

[Attachment 85014 - Click to enlarge]

[Findu]

@ ProWo

Is it possible to add a scale factor or resolution field to that window. Like 4:1, 2:1, 1:1, 1:2, 1:4
On a 4k screen, users can scale up if they work with very small resolution sources like 640x400 and on small screens you can scale down for high resolution sources.


[Attachment 85015 - Click to enlarge]

[ProWo]

Is it possible to add a scale factor or resolution field to that window. Like 4:1, 2:1, 1:1, 1:2, 1:4
On a 4k screen, users can scale up if they work with very small resolution sources like 640x400 and on small screens you can scale down for high resolution sources.

I have chosen a different path.
In the settings there is now a setting for Preview window width, with which you can select 720 or 1280. This setting then applies to all preview windows (crop, cut, video encoding).
You should also bear in mind that large preview windows slow down the system.

[Findu]

> You should also bear in mind that large preview windows slow down the system.

Your right!
ffplay has high cpu usage in any resolution.
But it can use HW accelerated decoding.

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> In the settings there is now a setting for Preview window width, with which you can select 720 or 1280.
Can you add 1920 for 4k screens for testing please.

[ProWo]

> In the settings there is now a setting for Preview window width, with which you can select 720 or 1280.
Can you add 1920 for 4k screens for testing please.

OK

[ProWo]

Newest beta (v3.3.7.03), online now.
(Changelog will follow in the next full release).

[Findu]

@ ProWo

3.3.7.03 Feedback

> Setting for Preview window width, (crop, cut, video encoding).

The new setting is working well and whithout problems. Great!
Please keep the entry for 1920, as ffplay has only 1-4 % cpu usage, ffmpeg has 20-25 % and MS Defender 50 % during playback on W11! Same as for 1280 and 720.

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When I drop clips from old digital cameras (MOV, MP4) to join them, Insert chapters is missing.
After changing the file extensions to lower case, Insert chapters appear and work well so far.
Is that intentional?

[ProWo]

Please keep the entry for 1920

Ok.

When I drop clips from old digital cameras (MOV, MP4) to join them, Insert chapters is missing.
After changing the file extensions to lower case, Insert chapters appear and work well so far.
Is that intentional?

No. it's a bug and will be fixed.

[lomero]

with wonderful clever i want convert wav into m4a. all work fine, but i see option to batch
where clever save batch? my goal is open batch to see ffmpeg command used from clever for conversion


[Attachment 85055 - Click to enlarge]


[Attachment 85056 - Click to enlarge]

[ProWo]

with wonderful clever i want convert wav into m4a. all work fine, but i see option to batch
where clever save batch? my goal is open batch to see ffmpeg command used from clever for the batch

The batch remains in memory.
But if you close the app, you will find a new text file in the target folder, BT_open.txt.
Open it with your text Editor and you will see the commandline.