ffmpeg -ss 00:03:00 -i C:\Users\pc\Desktop\video\Indoor_Supermarket_00001_2.mp4 -to 00:58:00 -c copy C:\Users\pc\Desktop\result\a\cut.mp4



ff = FFmpeg(
            inputs={"1.mp4": ['-ss', '00:03:00']},
            outputs={'output.ts': ['-to', '00:58:00','-c', 'copy']}
        )




		
ffmpeg -i input1.mp4 -i input2.mp4 -i input3.mp4 -lavfi hstack=inputs=3 output.mp4



ff = FFmpeg(
            inputs={"file_list.txt": ['-f', 'concat']},
            outputs={'output.ts': ['-acodec', 'copy','-vcodec', 'copy','-absf','aac_adtstoasc']}
        )
	


ffmpeg -f concat -i file_list.txt -acodec copy -vcodec copy -absf aac_adtstoasc output.mp4

D:\ffmpeg-4.4-full_build\bin