# Encode large image sequence with ffmpeg (2025-10-09 18:12Z) _**User (2025-10-29 04:20Z)**_ losslessly encode the freakishly large image sequence in D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark to E:\3_background_dark using ffmpeg, nvidia nvenc with CQ=0. 60fps. --- _**Assistant (default)**_ --- Checking the source image sequence to identify the format and frame range. --- Tool use: **list_dir**

Listed directory undefined • **0** results

No results found

--- --- Tool use: **run_terminal_cmd** ```bash dir "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark" | Select-Object -First 5 ``` ``` Directory: D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 10/26/2025 2:33 PM 49803735 3_background_dark_0000.png -a--- 10/26/2025 12:17 PM 49803388 3_background_dark_0001.png -a--- 10/26/2025 1:19 PM 49799657 3_background_dark_0002.png -a--- 10/26/2025 9:56 AM 49800635 3_background_dark_0003.png -a--- 10/26/2025 1:39 PM 49806719 3_background_dark_0004.png ``` --- --- Tool use: **run_terminal_cmd** ```bash dir "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark" | Select-Object -Last 5 ``` ``` Directory: D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark Mode LastWriteTime Length Name ---- ------------- ------ ---- ----- 10/27/2025 12:37 AM 49805765 3_background_dark_9995.png ----- 10/26/2025 11:21 PM 49805316 3_background_dark_9996.png ----- 10/26/2025 9:46 PM 49808654 3_background_dark_9997.png ----- 10/27/2025 12:13 AM 49806734 3_background_dark_9998.png ----- 10/26/2025 11:34 PM 49805629 3_background_dark_9999.png ``` --- --- Image sequence goes from `0000` to `9999` (10,000 frames); each frame is ~50MB. --- Tool use: **create_plan** --- _**User (2025-10-29 04:20Z)**_ No. There are 14,401 frames. I want nvenc hevc in an mp4 container. Is the preset slow, or is it 7? I forget what the exact arguments are. --- _**Assistant (default)**_ --- Verifying the exact frame range and NVENC preset syntax. Updating the plan. --- Tool use: **run_terminal_cmd** ```bash Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Measure-Object | Select-Object -ExpandProperty Count ``` ``` 14401 ``` --- --- Tool use: **run_terminal_cmd** ```bash $frames = Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png"; Write-Host "First: $($frames[0].BaseName)"; Write-Host "Last: $($frames[-1].BaseName)" ``` ``` First: 3_background_dark_0000 Last: 3_background_dark_9999 ``` --- --- Tool use: **run_terminal_cmd** ```bash $frames = Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Sort-Object Name; Write-Host "Start: $($frames[0].Name)"; Write-Host "End: $($frames[-1].Name)"; Write-Host "Total count: $($frames.Count)" ``` ``` Start: 3_background_dark_0000.png End: 3_background_dark_9999.png Total count: 14401 ``` --- _**User (2025-10-29 04:20Z)**_ you might as well do all 14401 frames. --- _**Assistant (default)**_ --- Checking ffmpeg NVENC HEVC preset syntax. Updating the plan to use the full 14,401 frames in an MP4 container. --- Received invalid string to replace in plan --- --- Tool use: **create_plan** --- _**User (2025-10-29 04:20Z)**_ No, process all 14401 frames. --- _**Assistant (default)**_ --- Command uses `%04d.png` which only captures frames 0000–9999, missing the rest. Checking for five-digit frame numbers. --- Tool use: **run_terminal_cmd** ```bash Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Where-Object { $_.Name -match '_\d{5}\.' } | Select-Object Name -First 10 ``` ``` ``` --- --- Tool use: **run_terminal_cmd** ```bash $frames = Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Sort-Object Name; Write-Host "Unique count: $($frames | Select-Object -ExpandProperty BaseName -Unique | Measure-Object | Select-Object -ExpandProperty Count)" ``` --- ---