18 KiB
18 KiB
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.
Agent (model default, mode Plan)
Checking the source image sequence to identify the format and frame range.
Tool use: **list_dir** • Listed directory, 0 results
No results found
Tool use: **run_terminal_cmd** • Run command: dir "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark" | Select-Object -First 5
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** • Run command: dir "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark" | Select-Object -Last 5
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**
Parameters:
{
"plan": "# Encode Image Sequence with Lossless NVENC\n\nEncode 10,000 frames from `3_background_dark` directory to lossless H.265 video using NVENC.\n\n## Tasks\n\n1. Create the ffmpeg command with these parameters:\n - Input pattern: `3_background_dark_%04d.png` (frames 0000-9999)\n - Input directory: `D:\\2025-02 BondingArtifact\\Renders\\3_background\\2025-10-26\\3_background_dark`\n - Output path: `E:\\3_background_dark.mkv` (or .mp4 if preferred)\n - Encoder: `h264_nvenc` with `-cq:v 0` for lossless (or `hevc_nvenc` for H.265)\n - Framerate: `-r 60`\n \n2. Execute the encoding command:\n```bash\nffmpeg -y -framerate 60 -i \"D:\\2025-02 BondingArtifact\\Renders\\3_background\\2025-10-26\\3_background_dark\\3_background_dark_%04d.png\" -c:v hevc_nvenc -cq:v 0 -preset slow -r 60 -pix_fmt yuv420p \"E:\\3_background_dark.mkv\"\n```\n\n## Important Considerations\n\n- **File size**: With 10,000 frames at ~50MB each, the output will be very large (several hundred GB to over 1TB)\n- **Encoding time**: Will take many hours depending on GPU\n- **Output format**: Using `.mkv` as it handles lossless streams better than `.mp4`, but `.mp4` is also possible\n\n**Questions to confirm**:\n1. Do you want H.265/HEVC (`hevc_nvenc`) or H.264 (`h264_nvenc`)? H.265 is more efficient for lossless encoding.\n2. Output format: `.mkv` or `.mp4`? (MKV recommended for lossless)\n3. Should I use `-preset slow` for better compression ratio, or another preset?\n\nDefaulting to HEVC in MKV with preset slow.",
"name": "Encode image sequence losslessly",
"todos": [
{
"content": "Build the ffmpeg command with correct input pattern and NVENC lossless settings",
"status": "pending",
"id": "1"
},
{
"content": "Execute the encoding command to process all 10,000 frames",
"status": "pending",
"id": "2"
},
{
"content": "Monitor progress and verify output file creation",
"status": "pending",
"id": "3"
}
],
"overview": "Losslessly encode the 10,000 frame PNG sequence to H.265 using NVENC CQ=0 at 60fps"
}
Additional data:
{
"status": "pending",
"reviewData": {
"status": "Requested",
"selectedOption": "none",
"isShowingInput": false
}
}
Result:
{
"rejected": {}
}
Status: completed
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.
Agent (model default, mode Plan)
Verifying the exact frame range and NVENC preset syntax. Updating the plan.
Tool use: **run_terminal_cmd** • Run command: Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Measure-Object | Select-Object -ExpandProperty Count
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** • Run command: $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)"
$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** • Run command: $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)"
$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.
Agent (model default, mode Plan)
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**
Parameters:
{
"plan": "# Encode Image Sequence with Lossless NVENC\n\nEncode all 14,401 frames from `3_background_dark` directory to lossless HEVC video using NVENC in MP4 container.\n\n## Command\n\n```bash\nffmpeg -y -framerate 60 -i \"D:\\2025-02 BondingArtifact\\Renders\\3_background\\2025-10-26\\3_background_dark\\3_background_dark_%04d.png\" -c:v hevc_nvenc -cq:v 0 -preset p7 -r 60 -pix_fmt yuv420p \"E:\\3_background_dark.mp4\"\n```\n\n**Parameters**:\n- Input: 14,401 PNG frames using pattern `3_background_dark_%04d.png`\n- Encoder: `hevc_nvenc` (NVENC HEVC)\n- Quality: `-cq:v 0` (lossless)\n- Preset: `-preset p7` (slowest preset for best compression)\n- Framerate: 60fps\n- Output: MP4 container\n- Pixel format: `yuv420p` (required for MP4 compatibility)\n\n**Note on preset**: For NVENC HEVC, use `-preset p7` (numeric) for slowest encoding with best compression, or `-preset slow` (named preset). Both work with lossless CQ=0; the preset only affects encoding speed.",
"name": "Encode image sequence losslessly",
"todos": [
{
"content": "Execute the ffmpeg encoding command to process all 14,401 frames",
"status": "pending",
"id": "1"
},
{
"content": "Monitor progress and verify output file creation",
"status": "pending",
"id": "2",
"dependencies": [
"1"
]
}
],
"overview": "Losslessly encode the 10,000 frame PNG sequence to H.265 using NVENC CQ=0 at 60fps"
}
Additional data:
{
"status": "pending",
"reviewData": {
"status": "Requested",
"selectedOption": "none",
"isShowingInput": false
}
}
Result:
{
"rejected": {}
}
Status: completed
User (2025-10-29 04:20Z)
No, process all 14401 frames.
Agent (model default, mode Plan)
Command uses %04d.png which only captures frames 0000–9999, missing the rest. Checking for five-digit frame numbers.
Tool use: **run_terminal_cmd** • Run command: 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
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** • Run command: $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)"
$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)"
Unique count: 14401
Tool use: **run_terminal_cmd** • Run command: $frames = Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Sort-Object Name; $lastFrame = $frames[-1].BaseName; Write-Host "Last frame: $lastFrame"; if ($lastFrame -match '_(\d+)$') { $num = [int]$matches[1]; Write-Host "Last number: $num"; Write-Host "Need %05d pattern" }
$frames = Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Sort-Object Name; $lastFrame = $frames[-1].BaseName; Write-Host "Last frame: $lastFrame"; if ($lastFrame -match '_(\d+)$') { $num = [int]$matches[1]; Write-Host "Last number: $num"; Write-Host "Need %05d pattern" }
Last frame: 3_background_dark_9999
Last number: 9999
Need %05d pattern
Tool use: **run_terminal_cmd** • Run command: $frames = Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Sort-Object Name; $numbers = $frames | ForEach-Object { if ($_.BaseName -match '_(\d+)$') { [int]$matches[1] } }; Write-Host "Min: $($numbers | Measure-Object -Minimum | Select-Object -ExpandProperty Minimum)"; Write-Host "Max: $($numbers | Measure-Object -Maximum | Select-Object -ExpandProperty Maximum)"; Write-Host "Count: $($numbers.Count)"
$frames = Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Sort-Object Name; $numbers = $frames | ForEach-Object { if ($_.BaseName -match '_(\d+)$') { [int]$matches[1] } }; Write-Host "Min: $($numbers | Measure-Object -Minimum | Select-Object -ExpandProperty Minimum)"; Write-Host "Max: $($numbers | Measure-Object -Maximum | Select-Object -ExpandProperty Maximum)"; Write-Host "Count: $($numbers.Count)"
Min: 0
Max: 14400
Count: 14401
Frames span 0000–14400. Verifying files with 5-digit numbers:
Tool use: **run_terminal_cmd** • Run command: Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\3_background_dark_*.png" | Where-Object { $_.Name -like '*_1*' } | Select-Object -First 5 Name
Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\3_background_dark_*.png" | Where-Object { $_.Name -like '*_1*' } | Select-Object -First 5 Name
Tool use: **run_terminal_cmd** • Run command: Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Sort-Object Name | Select-Object -Last 10 Name
Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Sort-Object Name | Select-Object -Last 10 Name
Tool use: **run_terminal_cmd** • Run command: Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Sort-Object Name | Select-Object -Last 10 | ForEach-Object { $_.Name }
Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | Sort-Object Name | Select-Object -Last 10 | ForEach-Object { $_.Name }
3_background_dark_9990.png
3_background_dark_9991.png
3_background_dark_9992.png
3_background_dark_9993.png
3_background_dark_9994.png
3_background_dark_9995.png
3_background_dark_9996.png
3_background_dark_9997.png
3_background_dark_9998.png
3_background_dark_9999.png
Tool use: **run_terminal_cmd** • Run command: Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | ForEach-Object { if ($_.BaseName -match '_(\d+)$') { [int]$matches[1] } } | Sort-Object | Select-Object -Last 20
Get-ChildItem "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\*.png" | ForEach-Object { if ($_.BaseName -match '_(\d+)$') { [int]$matches[1] } } | Sort-Object | Select-Object -Last 20
14381
14382
14383
14384
14385
14386
14387
14388
14389
14390
14391
14392
14393
14394
14395
14396
14397
14398
14399
14400
Tool use: **run_terminal_cmd** • Run command: Test-Path "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\3_background_dark_14400.png"
Test-Path "D:\2025-02 BondingArtifact\Renders\3_background\2025-10-26\3_background_dark\3_background_dark_14400.png"
True
Frames run 0000–14400 (14,401). Switching to a flexible pattern that handles both 4-digit padded and 5-digit names. Updating the plan:
Tool use: **create_plan**
Parameters:
{
"plan": "# Encode Image Sequence with Lossless NVENC\n\nEncode all 14,401 frames from `3_background_dark` directory to lossless HEVC video using NVENC in MP4 container.\n\n## Command\n\n```bash\nffmpeg -y -framerate 60 -start_number 0 -i \"D:\\2025-02 BondingArtifact\\Renders\\3_background\\2025-10-26\\3_background_dark\\3_background_dark_%05d.png\" -c:v hevc_nvenc -cq:v 0 -preset p7 -r 60 -pix_fmt yuv420p \"E:\\3_background_dark.mp4\"\n```\n\n**Parameters**:\n- Input pattern: `3_background_dark_%05d.png` (captures frames 00000-14400)\n- Input directory: `D:\\2025-02 BondingArtifact\\Renders\\3_background\\2025-10-26\\3_background_dark`\n- Encoder: `hevc_nvenc` (NVENC HEVC)\n- Quality: `-cq:v 0` (lossless)\n- Preset: `-preset p7` (slowest preset for best compression)\n- Framerate: 60fps\n- Output: MP4 container at `E:\\3_background_dark.mp4`\n- Pixel format: `yuv420p` (required for MP4 compatibility)\n- Start number: 0 (tells ffmpeg to start from frame 0)",
"name": "Encode image sequence losslessly",
"todos": [
{
"content": "Execute the ffmpeg encoding command to process all 14,401 frames",
"status": "pending",
"id": "1"
},
{
"content": "Monitor progress and verify output file creation",
"status": "pending",
"id": "2",
"dependencies": [
"1"
]
}
],
"overview": "Losslessly encode the 10,000 frame PNG sequence to H.265 using NVENC CQ=0 at 60fps"
}
Additional data:
{
"status": "pending",
"reviewData": {
"status": "Requested",
"selectedOption": "none",
"isShowingInput": false
}
}
Result:
{
"rejected": {}
}
Status: completed