Re: [FFmpeg-user] Creat mosaic without loose quality

Hi Carl, I appreciate you trying to help me, it was very usefull for me. I'm trying to reduce the time required to produce the output (now it takes about 20 seconds). Next step is to enable hardware acceleration but I'm not sure this could help (my card is Nvidia Geforce 940M). Considering my

Re: [FFmpeg-user] Creat mosaic without loose quality

2017-11-26 8:51 GMT+01:00 Marco De Angelis : > I'm analyzing the video using Quicktime since it is easy to move frame by > frame > using arrow keys, but sometime it take lot of time moving backward and forward > and it stop. > I've tryed to change CRF from 0 to

Re: [FFmpeg-user] Creat mosaic without loose quality

Hi, thanks for yor help. Now the final video has the desired fps (60). I'm analyzing the video using Quicktime since it is easy to move frame by frame using arrow keys, but sometime it take lot of time moving backward and forward and it stop. I've tryed to change CRF from 0 to 18, but or the

Re: [FFmpeg-user] Creat mosaic without loose quality

> > On Nov 23, 2017, at 4:23 50AM, Carl Eugen Hoyos wrote: > > 2017-11-23 12:52 GMT+01:00 Marco De Angelis > : > >> C:\S7\ffmpeg\bin\ffmpeg -i C:\S7\FTP_video\1.mp4 -i C:\S7\FTP_video\2.mp4 >> -i C:\S7\FTP_video\3.mp4 -i

Re: [FFmpeg-user] Creat mosaic without loose quality

2017-11-23 12:52 GMT+01:00 Marco De Angelis : > C:\S7\ffmpeg\bin\ffmpeg -i C:\S7\FTP_video\1.mp4 -i C:\S7\FTP_video\2.mp4 > -i C:\S7\FTP_video\3.mp4 -i C:\S7\FTP_video\4.mp4 > -filter_complex "nullsrc=size=1920x1080 This is your original source, the other

Re: [FFmpeg-user] Creat mosaic without loose quality

This is the command C:\S7\ffmpeg\bin\ffmpeg -i C:\S7\FTP_video\1.mp4 -i C:\S7\FTP_video\2.mp4 -i C:\S7\FTP_video\3.mp4 -i C:\S7\FTP_video\4.mp4 -filter_complex "nullsrc=size=1920x1080 [base]; [0:v] setpts=PTS-STARTPTS, scale=960x540 [upperleft]; [1:v] setpts=PTS-STARTPTS, scale=960x540

Re: [FFmpeg-user] Creat mosaic without loose quality

2017-11-23 11:41 GMT+01:00 Marco De Angelis : > Hello, I'm pretty new to video processing and I came across this usuful tool. > Using the info I found on the following page I created a mosaic using four > mp4 files > (original frame rate is 60 fps). Please

[FFmpeg-user] Creat mosaic without loose quality

Hello, I'm pretty new to video processing and I came across this usuful tool. Using the info I found on the following page I created a mosaic using four mp4 files (original frame rate is 60 fps). Create a mosaic out of several input videos – FFmpeg | | | | | | | | | | | Create a