FFmpeg : reduce video size issue

Asked Dec 25 '15 at 21:27

Active Dec 25 '15 at 21:27

Viewed 377 times

i don't have any knowledge with FFmpeg , i using below command in order to reduce video size via FFmpeg from this post , but outputted videos does not have video, they are only sound with black video.

ffmpeg -i in.mp4 -s 640x480 -b 512k -vcodec mpeg1video -acodec copy file.mp4

What is the issue?

edited May 23 '17 at 11:52

Community

asked Dec 25 '15 at 21:27

Ali Hasanzade

invoke 'ffmpeg -i in.mp4' , capture stdout and post that in order to give a clue as to 'tracks' and codecs used in the container – Robert Rowntree Dec 25 '15 at 21:39
try these switch settings : -vcodec libx264 -b:v 250k -f mp4 -strict -2 – Robert Rowntree Dec 25 '15 at 21:41
Thanks, can you please post full command? – Ali Hasanzade Dec 25 '15 at 21:43
It's really difficult to guess which kind of problem you have. Please, edit your post and add output from `ffmpeg -i in.mp4` command as Robert mentioned, or use `ffprobe` which is practically the same thing: `ffprobe in.mp4`. – Edgar Rokjān Dec 25 '15 at 22:10
Please show the complete console output from your command. – llogan Dec 25 '15 at 23:29

FFmpeg : reduce video size issue

0 Answers0