Video container matrix
Pick a video codec and pixel format from the mp4, webm, and mov matrix. Stream copy is not used.
Runs in your browserEvery computation happens in your browser — your data never leaves this device.
Video filename
Plan
ffmpeg arguments
Enter a video to plan
Stat: 0 · Stat 2: 0
What this tool does
- Check parameters before transcoding
- Convert time into samples or filters
Example
Input
clip.mp4
Output
格式兼容规划 ffmpeg -i clip.mp4 -c:v libx264 -pix_fmt yuv420p -c:a aac output.mp4 mp4 推荐编码：libx264 / yuv420p 不使用 stream copy，确保目标容器兼容
Computes an assertable plan or sample range. It does not touch devices or transcode files.
Frequently asked questions
Does it process the file?
No. It returns a plan, command, or sample range and never decodes media.
May numbers be strings?
Yes. Numeric strings from text controls are parsed as numbers.
Does it match ffmpeg exactly?
Times, filters, and bitrate formulas are deterministic; container overhead can still differ.
Keywords：mp4webmmovyuv420pcontainer