Hi Jim, Thanks for suggesting the -nostdin option. Unfortunately, it didn't work.
I am redirecting the output of the subprocess to a file on Windows log file. *Log file highlights* Parameters written to a file named *filter.txt *from a batch file echo [0]adelay=0:all=1[0a];[1]adelay=17650:all=1[1a];[2]adelay=37510:all=1[2a];[0a][1a][2a]amix=inputs=3 > "filter.txt" Referring to a parameter *-filter_complex_script filter.txt* C:\progra~1\GloboTRAC\ffmpeg\bin\ffmpeg.exe -nostdin -loglevel verbose -i a0.m3u8 -i a1.m3u8 -i a2.m3u8 -filter_complex_script filter.txt -y all_audio.mp4 <Hangs after the previous line> NOTE: I removed the -map "[a]" and the [a] reference in the file because I thought perhaps the double quotes were creating an issue. Marc. On Mon, Aug 16, 2021 at 9:17 PM Jim DeLaHunt <list+ffmpeg-u...@jdlh.com> wrote: > On 2021-08-16 17:38, The Admin wrote: > > > Hi, > > > > Here the command that works fine at the command prompt. > > C:\progra~1\GloboTRAC\ffmpeg\bin\ffmpeg.exe -i a0.m3u8 -i a1.m3u8 -i > > a2.m3u8 -filter_complex > > > "[0]adelay=0:all=1[0a];[1]adelay=17650:all=1[1a];[2]adelay=37510:all=1[2a];[0a][1a][2a]amix=inputs=3[a]" > > -map "[a]" -y all_audio.mp4 > > > > When I run the same command from the Process.Start command in C#, it just > > hangs. I've even tried triggering the execution from .bat file and it > > hangs as well. > > > > If it is the subprocess, I am open to any suggestions. > > > > Any help would be appreciated. > > > > Marc. > > It may be that FFmpeg is trying to interact with stdin, and the > subprocess is not responding like a live shell would. Try adding the > `-nostdin` option to your command line. See answer > <https://stackoverflow.com/a/47114881/1099571> to question, "ffmpeg > hangs when run in background". > > If that answer helps you, consider upvoting it. > > Best regards, > —Jim DeLaHunt > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
