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

[ProWo]

I found batch task thing problems!
One audio batch task get processed, but two not. A 0 kb file for the first batch is created but the encoding does not start.
Video batch tasks work normal.

I cannot replicate this error.
It could be due to the fact that the index of the audio stream from batch0 does not correspond to an audio stream in the replicated video.
To avoid this in the future, I have introduced a background check for defective batch tasks.

When you have one audio batch task and switch to scan for errors batch scan, all is fine.
When you have two audio batch tasks and switch to scan for errors batch scan, the following exception occurs
immediately:

This error occurs when you hover over the action field with the mouse before the grid has loaded.
This has now been fixed.
In one of the latest nightlies, I added a new feature to the batch tasks; when you point the mouse at the action field of batch0, the command line of batch0 is displayed. This allows you to see what is being replicated.
Does not work for stream cut/error scan batches, for obvious reasons.

[ProWo]

When muxing, Clever now defaults to MKV again. Used to memorize the last format/container used. Please fix.

Cannor replicate this.
Retested. Is memorized as aspected.

[bb84000]

Hello !

Anyway, I've changed the code to avoid this conversion. Update to .19

Thanks, I will get it.

Edit: Same exception with .19 version, I select a file and then, click on cut button :

System.InvalidCastException: La conversion de la chaîne "0.000000" en type 'Double' n'est pas valide. ---> System.FormatException: Le format de la chaîne d'entrée est incorrect.

Conversion of string "0.000000" to 'Double' type is invalid. --> Incorrect input string format


à Microsoft.VisualBasic.CompilerServices.Conversions.ParseDouble(String Value, NumberFormatInfo NumberFormat)
   à Microsoft.VisualBasic.CompilerServices.Conversions.ToDouble(String Value, NumberFormatInfo NumberFormat)
   --- Fin de la trace de la pile d'exception interne ---
   à Microsoft.VisualBasic.CompilerServices.Conversions.ToDouble(String Value, NumberFormatInfo NumberFormat)
   à clever_FFmpeg_GUI.Form8.Indexing()
   à clever_FFmpeg_GUI.Form8.Set_v_stream()
   à clever_FFmpeg_GUI.Form8.Track_test_V()
   à clever_FFmpeg_GUI.Form8.Form8_Load(Object sender, EventArgs e)
   à System.Windows.Forms.Form.OnLoad(EventArgs e)
   à System.Windows.Forms.Form.OnCreateControl()
   à System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   à System.Windows.Forms.Control.CreateControl()
   à System.Windows.Forms.Control.WmShowWindow(Message& m)
   à System.Windows.Forms.Control.WndProc(Message& m)
   à System.Windows.Forms.Form.WmShowWindow(Message& m)
   à System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Hope it can help you

bb

[videoAI]

@ProWo
v3.4.4.19

By moving to an incremental update, where only components
that change get updated, the update process can be sped up.

A simple file check can verify the DLLs existence. There is no
need to unzip and over write them if they haven't changed.

As always, thank you, and keep up the good work.

[ProWo]

Edit: Same exception with .19 version, I select a file and then, click on cut button

You have PM

[bb84000]

Hello,

Same exception error with .20 version. If i choose to continue, I can set cut points and preview cut video. But if execute the cut, I get a null file with srt extension.

Thank for your support,

bb

[ProWo]

Hello,

Same exception error with .20 version. If i choose to continue, I can set cut points and preview cut video. But if execute the cut, I get a null file with srt extension.

Thank for your support,

bb

Could you please explain step by step (button by button) how you arrived at this error?
A mediainfo report (text mode) of the video file would also be helpful.

[bb84000]

Hello !

Could you please explain step by step (button by button) how you arrived at this error?
A mediainfo report (text mode) of the video file would also be helpful.

1. Launch Clever FFmpeg-GUI
2. Select file (Starmania ： l'anniversaire-événement, les 45 ans.mp4)
3. Click "Main Page" button
4. On main page, click "Cut" button/
5. Box "Indexing video" is displayed. At the same time, exception warning dialog is issued :

"La conversion de la chaîne "0.000000" en type 'Double' n'est pas valide. ---> System.FormatException: Le format de la chaîne d'entrée est incorrect."
or in english
"Conversion of string "0.000000" to 'Double' type is invalid. --> System.FormatException: Incorrect input string format"

Is it possible there is locale problem ? the decimal point here is a coma : "0,000000".

bb

Mediainfo report :
Général
Nom complet                              : D:\Replay video\Operas\Starmania ： l'anniversaire-événement, les 45 ans.mp4
Format                                   : MPEG-4
Format, Profil                           : Base Media
Identifiant du codec                     : isom (isom/iso2/avc1/mp41)
Taille du fichier                        : 1,85 Gio
Durée                                    : 2 h 6 min
Débit global                             : 2 089 kb/s
Débit im/s                               : 25,000 im/s
Application utilisée                     : Lavf61.9.100

Vidéo
ID                                       : 1
Format                                   : AVC
Format/Infos                             : Advanced Video Codec
Format, Profil                           : High@L3.1
Paramètres du format                     : CABAC / 2 Ref Frames
Paramètres du format, CABAC              : Oui
Paramètres du format, Recadrer           : 2 images
Paramètres du format, GOP                : M=1, N=50
Identifiant du codec                     : avc1
Identifiant du codec/Infos               : Advanced Video Coding
Durée                                    : 2 h 6 min
Duration_LastFrame                       : -38 ms
Débit                                    : 1 989 kb/s
Largeur                                  : 1 280 pixels
Hauteur                                  : 720 pixels
Facteur de forme l/h                     : 16/9
Type de débit im/s                       : Débit im/s constant
Débit im/s                               : 25,000 im/s
Espace de couleurs                       : YUV
Sous-échantillonnage de la chrominance   : 4:2:0
Profondeur binaire                       : 8 bits
Type de balayage                         : Progressif
Bits/(Pixel*Image)                       : 0.086
Taille du flux                           : 1,76 Gio (95%)
Gamme de couleurs                        : Limited
Coordonnées de chromaticité              : BT.709
Caractéristiques du transfert            : BT.709
Coefficients de la matrice               : BT.709
Configuration des codecs                 : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Infos                             : Advanced Audio Codec Low Complexity
Identifiant du codec                     : mp4a-40-2
Durée                                    : 2 h 6 min
Type de débit                            : Constant
Débit                                    : 96,0 kb/s
Canal(aux)                               : 2 canaux
Agencement des canaux                    : L R
Échantillonnage                          : 48,0 kHz
Débit im/s                               : 46,875 im/s (1024 SPF)
Mode de compression                      : Avec perte
Taille du flux                           : 87,0 Mio (5%)
Langue                                   : French
Par défaut                               : Oui
Groupe alternatif                        : 1

[davidt1]

When muxing, Clever now defaults to MKV again. Used to memorize the last format/container used. Please fix.

Cannor replicate this.
Retested. Is memorized as aspected.

.19 does not memorize the last format/container used.

1. Muxed to mp4. 2. Then closed the app.

[Attachment 88271 - Click to enlarge]


1. Opened the app. 2. It shows MKV for the new file.

[Attachment 88272 - Click to enlarge]

[Findu]

@ ProWo

> It could be due to the fact that the index of the audio stream from batch0 does not correspond to an audio stream in the replicated video.
To avoid this in the future, I have introduced a background check for defective batch tasks.

I found a problem with audio tasks when encoding did not start.
When you encode to mp3_mf in mono, the minimum bitrate must be 65k and not <= 64k.

ffmpeg -i input.mp4 -filter_complex [0:1]pan="mono|c0<c0+c1"[a] -map [a] -c:a mp3_mf -b:a 64k -ar 48000 -vn -sn -dn output.mp3

---

> This error occurs when you hover over the action field with the mouse before the grid has loaded.
This has now been fixed.
In one of the latest nightlies, I added a new feature to the batch tasks; when you point the mouse at the action field of batch0, the command line of batch0 is displayed. This allows you to see what is being replicated.
Does not work for stream cut/error scan batches, for obvious reasons.

The fix is working.

The command line of batch0 is displayed. Good idea and working well.

---

Behave of "Mux whole grid" and output to source:

I have folders 1, 2 and 3 with individual files: 1.mkv, 2.mkv and 3.mkv. I start the app with output source and open the empty multiplex page. Now I drop 1.mkv, 2.mkv and 3.mkv and select "Mux whole grid" (to mp4).
1.mp4 and 2.mp4 are stored in folder 1.
3.mp4 is stored in folder 2.

Shouldn't the mp4 file only be created in it's corresponding folder?
Folder 1 should contain 1.mkv and 1.mp4.
Folder 2 should contain 2.mkv and 2.mp4.
Folder 3 should contain 3.mkv and 3.mp4.

[ProWo]

[CODE]"La conversion de la chaîne "0.000000" en type 'Double' n'est pas valide. ---> System.FormatException: Le format de la chaîne d'entrée est incorrect."

Another try; check your PM.

[ProWo]

.19 does not memorize the last format/container used.
1. Muxed to mp4. 2. Then closed the app.
1. Opened the app. 2. It shows MKV for the new file.

Did you close the app with the X upper right?
If so, the next time go back to the main page/source page.

[videoAI]

@ProWo
v3.4.4.19

I decided to test the h264_amf [since I have an AMD laptop with a GPU].

Please find my notes:
=============

1- First of all, my GPU works with other apps, performance is also
verified in win 11 task manager.

2- Second, there is nothing wrong with my setup or environment:

Win 11 is up to date [Successfully installed on ‎2025-‎08-‎12]
GPU driver is up to date [Successfully installed on ‎2025-‎08-‎12]
Clever is up to date [v3.4.4.19, Successfully installed on ‎2025-‎08-‎12]

3- I am getting 3 errors as described in details below while executing
a simple encode, no scaling, resizing, cropping, or various manipulations.
Notes on the errors:

a- Although 'p010le' can preview the file, it errors without export
claiming my GPU driver is old, which is not the case.

b- 'dxva2vld' and 'd3d11va' error without export claiming colorspace 3
and filter 'auto_scale_1' conflict!!

Btw, please standardize the dropdown abbreviations as follows (no spaces):

Abbreviation.........Official Name
----------------------------------
DXVA2VLD............DirectX Video Acceleration 2 Video Decoder (VLD)
D3D11VA..............Direct3D 11 Video Acceleration
NV12....................NV12 YUV Pixel Format
YUV420P...............YUV 4:2:0 Planar Format

Test Laptop:
AMD Ryzen 3 3250U (with Radeon Graphics)
AMD Radeon Adrenalin 25.8.1 GPU driver

Tested ...
Encoder = h264_amf [with & without HA checked, with Mp4, Mkv, etc ..]

and with ... the following pixel formats:

Pixel Format = nv12 [preview ok] HW
Orig Test File size = 73.5 mb
Pixel Format = nv12 output file size = 124 mb
=========================================
Pixel Format = yuv420p [preview ok] HW
Orig Test File size = 73.5 mb
Pixel Format = yuv420p output file size = 124 mb
=========================================
Pixel Format = p010le [preview ok] ** error #1
Pixel Format = dxva2vld [no preview] ** error #2
Pixel Format = d3d11va [no preview] ** error #3

^ no preview:.. Preview window doesnt open
^ error:........... output file auto deleted by clever after errors
=========================================
error #1
Pixel Format = p010le [preview ok]

[h264_amf @ 000001e81679a780] 10-bit encoder is not supported by AMD GPU drivers versions lower than 23.30.[vost#0:0/h264_amf @ 000001e8167beb40] Error while opening encoder - maybe incorrect parameters such as bit_rate, rate, width or height.[vf#0:0 @ 000001e816aa0080] Error sending frames to consumers: Unknown error occurred[vf#0:0 @ 000001e816aa0080] Task finished with error code: -1313558101 (Unknown error occurred)[vf#0:0 @ 000001e816aa0080] Terminating thread with return code -1313558101 (Unknown error occurred)[vost#0:0/h264_amf @ 000001e8167beb40] Could not open encoder before EOF[vost#0:0/h264_amf @ 000001e8167beb40] Task finished with error code: -22 (Invalid argument)[vost#0:0/h264_amf @ 000001e8167beb40] Terminating thread with return code -22 (Invalid argument)[out#0/matroska @ 000001e8166b9e40] Nothing was written into output file, because at least one of its streams received no packets.frame= 0 fps=0.0 q=0.0 Lsize= 0KiB time=N/A bitrate=N/A speed=N/A

=========================================
error #2
Pixel Format = dxva2vld [no preview]

Impossible to convert between the formats supported by the filter 'Parsed_colorspace_3' and the filter 'auto_scale_1'[vf#0:0 @ 000002432b64fa00] Error reinitializing filters![vf#0:0 @ 000002432b64fa00] Task finished with error code: -40 (Function not implemented)[vf#0:0 @ 000002432b64fa00] Terminating thread with return code -40 (Function not implemented)[vost#0:0/h264_amf @ 000002432b36eb40] Could not open encoder before EOF[vost#0:0/h264_amf @ 000002432b36eb40] Task finished with error code: -22 (Invalid argument)[vost#0:0/h264_amf @ 000002432b36eb40] Terminating thread with return code -22 (Invalid argument)[out#0/matroska @ 000002432b269e40] Nothing was written into output file, because at least one of its streams received no packets.frame= 0 fps=0.0 q=0.0 Lsize= 0KiB time=N/A bitrate=N/A speed=N/A

=========================================
error #3
Pixel Format = d3d11va [no preview]

Impossible to convert between the formats supported by the filter 'Parsed_colorspace_3' and the filter 'auto_scale_1'[vf#0:0 @ 00000260ad910540] Error reinitializing filters![vf#0:0 @ 00000260ad910540] Task finished with error code: -40 (Function not implemented)[vf#0:0 @ 00000260ad910540] Terminating thread with return code -40 (Function not implemented)[vost#0:0/h264_amf @ 00000260ad62eb40] Could not open encoder before EOF[vost#0:0/h264_amf @ 00000260ad62eb40] Task finished with error code: -22 (Invalid argument)[vost#0:0/h264_amf @ 00000260ad62eb40] Terminating thread with return code -22 (Invalid argument)[out#0/matroska @ 00000260ad529e40] Nothing was written into output file, because at least one of its streams received no packets.frame= 0 fps=0.0 q=0.0 Lsize= 0KiB time=N/A bitrate=N/A speed=N/A

=========================================

[videoAI]

@ProWo
v3.4.4.19

My 2c, hope this helps ...

General Debugging Tip
Try running the command with the `-report` option to generate a detailed log file.

=========================================
error #1
Key Issues Identified
1. Incorrect Parameters: The message suggests that there may be incorrect parameters such as bit_rate, rate, width, or height. Double-check these settings in your encoding command.

Suggested Solutions
Check Encoding Parameters
- Review the parameters you are using for the encoder. Common parameters to check include:
- Bit Rate: Ensure it is set appropriately for your video quality needs.
- Resolution: Verify that the width and height are supported by your GPU.
- Frame Rate: Make sure the frame rate is compatible with your settings.
=========================================
error #2,#3
These error messages suggest issues with the video processing pipeline, particularly related to the filters and encoder settings.

Errors Breakdown:
1. Filter Conversion Error:
- Message: "Impossible to convert between the formats supported by the filter 'Parsed_colorspace_3' and the filter 'auto_scale_1'"
- Cause: This indicates that the output format of one filter is incompatible with the input format of the next filter in the chain.

2. Reinitialization Error:
- Message: "Error reinitializing filters!"
- Cause: This typically occurs when the filter chain cannot be set up correctly due to the previous error.

3. Encoder Opening Error:
- Message: "Could not open encoder before EOF"
- Cause: This suggests that the encoder could not be initialized, likely due to the previous filter issues.

4. Output File Error:
- Message: "Nothing was written into output file, because at least one of its streams received no packets."
- Cause: This is a consequence of the earlier errors, where no valid data was processed to write to the output file.

Potential Solutions
1. Check Filter Compatibility
Ensure that the filters you are using are compatible with each other. You may need to adjust the parameters or the order of the filters. For example, if you are using color space conversion, ensure that the output of that filter matches the expected input of the next filter.

2. Specify Output Format
Explicitly set the output format using the `-f` option in your command. This can help the encoder understand what format to expect.

3. Simplify the Command
Try simplifying your command to isolate the issue. Start with a basic command that just encodes without filters, then gradually add filters back in to identify which one causes the problem.
=========================================