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

[videoAI]

@ProWo
v3.4.7.09

How about a minor name change, from 'EIA 608/708' [very technical]
to 'Closed Captions' as shown ..


[Attachment 89734 - Click to enlarge]


[Attachment 89735 - Click to enlarge]

[ProWo]

I noticed that replacing -hwaccel nvdec with -hwaccel cuda -hwaccel_output_format cuda in Clever’s FFmpeg command increases performance on my system: 19× vs. 12× speed and 5% vs. 25–35% CPU usage when transcoding HEVC-to-HEVC. The output files are identical in size and metadata (per MediaInfo).
It would be great if Clever offered a CUDA decoding option.

Thx for the hint.
Which encoder did you use for the test?
Could you repeat the test with

-hwaccel cuda

only, and report back if there are any changes in performance?

[ProWo]

Feature Request
------------------
How about adding a 'copy to clipboard' when right-clicking on action
column in batch tasks grid.

Will add it (for row 0).

[ProWo]

How about a minor name change, from 'EIA 608/708' [very technical]
to 'Closed Captions' as shown

Will be done.

[videoAI]

That's great news, thank you.

How about adding a 'copy to clipboard' when right-clicking on action
column in batch tasks grid.

Will add it (for row 0).

How about a minor name change, from 'EIA 608/708'
to 'Closed Captions'

Will be done.

[Findu]

@ ProWo

v3.4.7.09 feedback, burned-in subtitles, cosmetic changes

Thank you for adding the preview for burned-in subtitles. It works well and is indeed useful for adjustments.
I didn't know that it also include background transparency, which also works.
But that text is quiet long and close to the drop down, so all drop-downs could be moved 10 pixels to the right.
And "External File" and the round selector could also move 15 pixels to the right.
The text position on the "Select" button for external files is two pixels too high.
How about swapping the text for the external file and the preview button and centering both?
The two buttons at the bottom are also not centered.

Here are two images of the possible changes:


[Attachment 89739 - Click to enlarge]


[Attachment 89740 - Click to enlarge]

[ProWo]

But that text is quiet long and close to the drop down, so all drop-downs could be moved 10 pixels to the right.
And "External File" and the round selector could also move 15 pixels to the right.

Will be done.

The text position on the "Select" button for external files is two pixels too high.

No, that seem so, because the button is selected.

How about swapping the text for the external file and the preview button and centering both?

Centering OK, but swap is not possible.

The two buttons at the bottom are also not centered.

Will be changed.

[Findu]

Oh great, thanks!

If you look closely, you can see that the word “Select” is positioned two pixels higher than “Close.”


[Attachment 89741 - Click to enlarge]

[Findu]

You cannot open videos that are longer than 24 hours.
If you click “Next” on the error message, the welcome page appears in front of the main page.

EDIT:
Clicking on X on the welcome scree closes the app. The configuration is not damaged either. The app can then be EDIT2 "started" as normal.
So it's a very rare problem!


[Attachment 89742 - Click to enlarge]


[Attachment 89743 - Click to enlarge]

System.OverflowException: TimeSpan konnte nicht analysiert werden, da sich mindestens eine der numerischen Komponenten außerhalb des gültigen Bereichs befindet oder zu viele Ziffern enthält.
bei System.Globalization.TimeSpanParse.TimeSpanResult. SetFailure(ParseFailureKind failure, String failureMessageID, Object failureMessageFormatArgument, String failureArgumentName)
bei System.Globalization.TimeSpanParse.ProcessTerminal _HMS_F_D(TimeSpanRawInfo& raw, TimeSpanStandardStyles style, TimeSpanResult& result)
bei System.Globalization.TimeSpanParse.ProcessTerminal State(TimeSpanRawInfo& raw, TimeSpanStandardStyles style, TimeSpanResult& result)
bei System.Globalization.TimeSpanParse.TryParseTimeSpa n(String input, TimeSpanStandardStyles style, IFormatProvider formatProvider, TimeSpanResult& result)
bei System.Globalization.TimeSpanParse.Parse(String input, IFormatProvider formatProvider)
bei clever_FFmpeg_GUI.Module1.TimeConversion1()
bei clever_FFmpeg_GUI.Module1.Get_duration(Dictionary` 2 stream_dict, Dictionary`2 format)
bei clever_FFmpeg_GUI.Module1.Findtrack(Dictionary`2 json_dict)
bei clever_FFmpeg_GUI.Module1.Analyze_new_source(Form& msbx_cf)
bei clever_FFmpeg_GUI.Form1.Show_Tracks()
bei clever_FFmpeg_GUI.Form1.New_inputfile()
bei clever_FFmpeg_GUI.Form1.Form1_Load(Object sender, EventArgs e)
bei System.Windows.Forms.Form.OnLoad(EventArgs e)
bei System.Windows.Forms.Form.OnCreateControl()
bei System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
bei System.Windows.Forms.Control.CreateControl()
bei System.Windows.Forms.Control.WmShowWindow(Message& m)
bei System.Windows.Forms.Control.WndProc(Message& m)
bei System.Windows.Forms.Form.WmShowWindow(Message& m)
bei System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

[Findu]

@ ProWo

Cut page testing, with a few suggestions:

During prolonged work with the “Cut” page, I noticed that the position of the “Add cut mark” button should be moved below the end time to keep the direction of the workflow and reduce the distance which is more efficient.
The two buttons can also be aligned appropriately. See picture.


[Attachment 89744 - Click to enlarge]

This allows the “Cut mark list” to be expanded downwards. Perhaps its title could also be centered.
In addition, the “Find cut points” button on the right-hand side is 3 pixels wider than “Preview last cut".
Longer “Start cut at” numbers are truncated at the end.
And this is the only page where the “Cut” and “To batch” buttons have a frame which is also always empty when the page is opened.

[videoAI]

@ProWo
v3.4.7.10 feedback

Thank you for making some requested changes.

As for these 4 requested changes, I can't tell if any of them
have been implemented in v3.4.7.10.

• post2786447
  Copy ffmpeg command to clipboard []
  -----------------
• post2786386
  Save default settings for:
  1- After Mux Action [Dropdown Selection]
  2- Title [Checkmark]
  3- Container [Type]
  -----------------
• post2786330
  Batch Remove tmcd stream
  -----------------
• post2786194
  Zero file check to all extracts [including srt]
  -----------------
• post2785921
  Output Folder
  Replacing the label with the actual toggle button

Please correct me if I'm wrong.

[ProWo]

[*]post2786447
Copy ffmpeg command to clipboard

Implemented, right click on the action column in row 0 (batch tasks)

[Deathstalker]

I noticed that replacing -hwaccel nvdec with -hwaccel cuda -hwaccel_output_format cuda in Clever’s FFmpeg command increases performance on my system: 19× vs. 12× speed and 5% vs. 25–35% CPU usage when transcoding HEVC-to-HEVC. The output files are identical in size and metadata (per MediaInfo).
It would be great if Clever offered a CUDA decoding option.

Thx for the hint.
Which encoder did you use for the test?
Could you repeat the test with

-hwaccel cuda

only, and report back if there are any changes in performance?

I’ve only tested with hevc_nvenc so far. Here are my results:

1. -hwaccel cuda only
CPU: ~40%
GPU: ~60% encode / ~30% decode
Time: 16 seconds

ffmpeg-8.0-win64-nonfree\FFmpeg.exe -hide_banner -loglevel error -stats -y -vsync 0 -hwaccel cuda -itsoffset -1.726 -fflags +genpts -i "test_3min_hevc.mkv" -vf fps=24000/1001 -map 0:0 -c:v hevc_nvenc -cq 30 -aspect 1.78 -an -sn -dn -metadata:g encoding_tool="clever FFmpeg-GUI" "test_3min_hevc_hwaccel_cuda_only.mkv"

Result:

frame=4280 fps=264 q=35.0 speed=11x elapsed=0:00:16.20

2. -hwaccel nvdec
Performance was basically the same as NVDEC.
CPU: ~40%
GPU: ~60% encode / ~30% decode
Time: 16 seconds

ffmpeg-8.0-win64-nonfree\FFmpeg.exe -hide_banner -loglevel error -stats -y -vsync 0 -hwaccel nvdec -itsoffset -1.726 -fflags +genpts -i "test_3min_hevc.mkv" -vf fps=24000/1001 -map 0:0 -c:v hevc_nvenc -cq 30 -aspect 1.78 -an -sn -dn -metadata:g encoding_tool="clever FFmpeg-GUI" "test_3min_hevc_hwaccel_nvdec.mkv"

Result:

frame=4280 fps=264 q=35.0 speed=11x elapsed=0:00:16.18

3. -hwaccel cuda -hwaccel_output_format cuda
CPU: ~10%
GPU: 100% encode / ~55% decode
Time: 9 seconds

ffmpeg-8.0-win64-nonfree\FFmpeg.exe -hide_banner -loglevel error -stats -y -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -itsoffset -1.726 -fflags +genpts -i "test_3min_hevc.mkv" -vf fps=24000/1001 -map 0:0 -c:v hevc_nvenc -cq 30 -aspect 1.78 -an -sn -dn -metadata:g encoding_tool="clever FFmpeg-GUI" "test_3min_hevc_hwaccel_cuda_output_cuda.mkv"

Result:

frame=4280 fps=450 q=35.0 speed=18.8x elapsed=0:00:09.50

Suggestion:

Change all folder-selection prompts to the standard dialog rather than the tree-style dialog to make pasting paths easier.

https://imgur.com/a/bu0N4ul
https://imgur.com/a/0nlBGhe

[Findu]

@ ProWo

v3.4.7.10 feedback

Videos longer than 24 hours can now be opened.
The changes to the Cut page and the Burned-in subtitle window work and look great.
Thanks for implementing this.

[Deathstalker]

I’m testing the Burn-In subtitle feature and noticed a couple of issues:

1. Subtitle sync problem
The subtitles appear correctly in the preview, but after encoding is completed, the burned-in subtitles are out of sync by about 1 second (they appear later than they should).
I tested with nvdec → hevc-nvenc and x264 (AVC). I’ll test software decoders now to see if that makes any difference.

EDIT: None → x264 (AVC) produced an in-sync file. I’ll add more results as I test. < [Ignore this as it was tested on a different file. Different file produced an in-sync file.]

EDIT 2: The issue above occurs with this specific file regardless of decoder or encoder settings. If anyone wants to take a look, let me know. More info: https://forum.videohelp.com/threads/396490-clever-FFmpeg-GUI-small-FFmpeg-UI-fully-por...02#post2786532

2. Subtitle filename issue
Tools such as gMKVExtractGUI export subtitles with names like:
test_track3_[eng].srt
If a subtitle file contains [brackets] in its filename, Clever FFmpeg fails with the task error. It's due to ffmpeg error: “Trailing garbage after a filter: .srt”
It would be helpful if Clever displayed a warning dialog advising users to rename subtitle files before importing them or handle it internally.

3. "The Drag & Drop subtitle file here" area should also function as a clickable button. Currently, it only accepts drag-and-drop, but would be better if clicking this area also opens a standard file-open dialog. Edit:Not needed

[videoAI]

It Works ..
Thanks for implementing

Copy ffmpeg command to clipboard

Implemented, right click on the action column in row 0 (batch tasks)

[ProWo]

3. "The Drag & Drop subtitle file here" area should also function as a clickable button. Currently, it only accepts drag-and-drop, but would be better if clicking this area also opens a standard file-open dialog.

There is the Select button below.

[Deathstalker]

3. "The Drag & Drop subtitle file here" area should also function as a clickable button. Currently, it only accepts drag-and-drop, but would be better if clicking this area also opens a standard file-open dialog.

There is the Select button below.

Haha, I didn’t realize that “OK” changes to “Select” when choosing an External File

Anyway, I just discovered that my subtitle out-of-sync issue happens consistently with a specific file. It’s a 3-minute HEVC file with embedded SRT subtitle. No matter which decoder or encoder I use, the output ends up out-of-sync. Clever’s Verify function shows no errors for the file.

I cut 1 minute from this file using Clever’s Cut feature. Now, when I burn in the subtitles, the output comes out perfectly in sync. I’m honestly really confused.

Would you be interested in taking a look at the file?

[Deathstalker]

[*]post2786447
Copy ffmpeg command to clipboard

Implemented, right click on the action column in row 0 (batch tasks)

I think it would be great if this could simply appear under all the main action buttons like Encode, Extract, Scan, Cut, etc. There’s already some empty space there, and it would be a perfect place to display the ffmpeg command. It would also make learning ffmpeg a lot easier while experimenting with different options.

Maybe you could even add a small “Copy Command” button, so users can copy the ffmpeg command without having to manually select the whole text.

You could also include options for this in Clever’s settings menu, so everyone can customize it the way they prefer. For example:

FFmpeg Command Display Options

• Always show ffmpeg command under the command button
  
• Show only when hovering over the command button
  
• Don’t show by default, but allow right-clicking the command button to copy the command

[Attachment 89753 - Click to enlarge]

[ProWo]

Anyway, I just discovered that my subtitle out-of-sync issue happens consistently with a specific file. It’s a 3-minute HEVC file with embedded SRT subtitle. No matter which decoder or encoder I use, the output ends up out-of-sync. Clever’s Verify function shows no errors for the file.
I cut 1 minute from this file using Clever’s Cut feature. Now, when I burn in the subtitles, the output comes out perfectly in sync. I’m honestly really confused.
Would you be interested in taking a look at the file?

Yep, post it here.

EDIT: Tested, there is a video delay in this file.
I will change the code to take that into account.

[ProWo]

2. Subtitle filename issue
Tools such as gMKVExtractGUI export subtitles with names like:
test_track3_[eng].srt
If a subtitle file contains [brackets] in its filename, Clever FFmpeg fails with the task error.

[] are special characters and have to be escaped (shell command). I'll do this.

[Deathstalker]

Anyway, I just discovered that my subtitle out-of-sync issue happens consistently with a specific file. It’s a 3-minute HEVC file with embedded SRT subtitle. No matter which decoder or encoder I use, the output ends up out-of-sync. Clever’s Verify function shows no errors for the file.
I cut 1 minute from this file using Clever’s Cut feature. Now, when I burn in the subtitles, the output comes out perfectly in sync. I’m honestly really confused.
Would you be interested in taking a look at the file?

Yep, post it here.

Attached

Windows 10
ffmpeg-8.0-win64-nonfree

[Deathstalker]

FFmpeg sometimes gives super clear error messages like this one:

[vob @ 0000000002765c40] Unsupported audio codec. Must be one of mp1, mp2, mp3, 16-bit pcm_dvd, pcm_s16be, ac3 or dts.

When we see something like that, we don’t even need to copy Clever’s FFmpeg command and test it ourselves externally to see if it gives us some hint. Just seeing the message would tell us what to do next.

Maybe Clever could show the FFmpeg error instead of the generic “There was an error. The task failed.” popup?

[ProWo]

FFmpeg sometimes gives super clear error messages...

As you said. sometimes...

[ProWo]

btw commandline...
I think it would be great if this could simply appear under all the main action buttons like Encode, Extract, Scan, Cut, etc.

There will be no further commandline support in clever.

[Findu]

@ ProWo

v3.4.7.11 feedback

Strange behavior at video encoding:
It appears that if the resolution of the source video is not one of those supported by DNxHD and you switch to DNxHR, the settings for “Profile” and its drop-down menu are missing. However, if your encoder is already set to DNxHR and you open video encoding, the settings are displayed.
EDIT: Sometimes the DNxHR settings disappear when you switch to DNxHD and then back.

Video encoding, Options, "Modify" doesn't say much, so perhaps use "Modify image" or "Video image", because "Image adjustment" is too long.

Burned-in subtitle:
Why do we need the values for Background 0, 1, 2?
You get the same results using only Background transparency between 0 - 100% (0 = 100%, 1 = 0%, 2 = 1-99%).

Why not using "Font size (pixel)" instead of "FontSize (pixel)"?

The text on the “Select” button is positioned two pixels higher than “Cancel”. It is the same when the button is selected.

[ProWo]

Sometimes the DNxHR settings disappear when you switch to DNxHD and then back.

Thx, bug, will be fixed.

Video encoding, Options, "Modify" doesn't say much, so perhaps use "Modify image" or "Video image", because "Image adjustment" is too long.

Will change it to "Adjustment".

Burned-in subtitle:
Why do we need the values for Background 0, 1, 2?
You get the same results using only Background transparency between 0 - 100% (0 = 100%, 1 = 0%, 2 = 1-99%).

0 (no background) and 1 (full black) are ffmpegs standard options. I'll leave it this way.

Why not using "Font size (pixel)" instead of "FontSize (pixel)"?

A typo, will be fixed.

The text on the “Select” button is positioned two pixels higher than “Cancel”. It is the same when the button is selected.

Will be fixed.

[Findu]

All right. Thank you.

Batch tasks:
How about moving the "Delete tasks" button next to the "None/All" button?
Similar to the Join page.

HWA decoding:
PLS also add cuda for "Scan for errors".

Unused processed files:
Using the light blue color for the "Delete files" button obove Quit?

And maybe a second "Delete" button appear next to None/All, only when you deselect one or more files, as this button is much closer.
Yes, I know, that might be a bit too much.

[videoAI]

MJPEG (Motion JPEG) is a video compression format where each frame of a video
is compressed as a separate JPEG image. Key characteristics include:

| Aspect | Details |
|--------|---------|
| Compression | Intra-frame compression (each frame compressed independently) |
| Quality | Good visual quality, especially for scenes with little motion |
| Use Cases | Screen recordings, surveillance cameras, video conferencing |
| Pros | Simple compression, easy to edit, good for static scenes |
| Cons | Less efficient for high-motion video, larger file sizes compared to modern codecs |

Creating a Video Clip with MJPEG using FFmpeg

ffmpeg -i input_source -c:v mjpeg output.avi

Convert an image sequence to MJPEG:

ffmpeg -framerate 30 -i image_%03d.jpg -c:v mjpeg output.avi

Screen recording with MJPEG:

ffmpeg -video_size 1920x1080 -framerate 30 -f gdigrab -i desktop -c:v mjpeg output.avi

Convert existing video to MJPEG:

ffmpeg -i input_video.mp4 -c:v mjpeg -q:v 2 output.avi

Parameters
-c:v mjpeg: Set video codec to Motion JPEG
-q:v: Quality setting (2-31, lower is better quality)
.avi: Recommended container for MJPEG

[sam12345]

@ProWo

Noticed a stange bug in 3.4.7.11, it was not there before. when i cut the video with option "should the cut's be added to join list > NO" ; it's not honoring it.

[Attachment 89776 - Click to enlarge]

[Attachment 89777 - Click to enlarge]