On Fri, Jan 9, 2026 at 8:12 AM Hervé ANSELME via ffmpeg-user <[email protected]> wrote:
> In some cases (for some source files) it works fine ; and for another source > files, I don't know why, the command execution produces the following error : > > [AVFormatContext @ 00000247c4bbd100] Unable to choose an output format for > '1>file.log1'; use a standard extension for the filename or specify the > format manually. > [out#1 @ 00000247c46ceb00] Error initializing the muxer for 1>file.log1: > Invalid argument > Error opening output file 1>file.log1. > Error opening output files: Invalid argument > > Does anyone has any idea for what causes this error ? I would suggest posting the full command line for the case that failed. My guess is that for some case you are trying to do it is missing the destination filename, which causes it to think that the 1>file.log.1 is the output filename. -- Devin Heitmueller, Senior Software Engineer LTN Global Communications o: +1 (301) 363-1001 w: https://ltnglobal.com e: [email protected] _______________________________________________ ffmpeg-user mailing list -- [email protected] To unsubscribe send an email to [email protected]
