FFMPEG command works in PowerShell but not in a batch file-CodePudding

Simply trying to extract frames from a video file using ffmpeg in a .bat file and it doesn't work:

ffmpeg -i video.mp4 -qscale:v 1 -qmin 1 -qmax 1 -vsync 0 tmp_frames/framed.jpg

The error message:

Unable to find a suitable output format for '.\tmp_frames\frameC:\Test' .\tmp_frames\frameC:\Test: Invalid argument

This command works fine in PowerShell by itself, but running it as a batch file yields the above error.

Any ideas on how to fix this in the batch file?

CodePudding user response：

In the .bat file, you must use the escape code for %, which is %%

ffmpeg -i video.mp4 -qscale:v 1 -qmin 1 -qmax 1 -vsync 0 tmp_frames/frame%d.jpg

CodePudding user response：

...framed.jpg : %0 will be replaced by the current batchfile name, hence '.\tmp_frames\frameC:\Test'