I want to stream a file to the network using ffmpeg in it's original frame rate; so I can play the generated UDP stream using some receiver client such as VLC. I used this command:
ffmpeg -i "myfile.mpg" -sameq -re -f mpegts "udp://127.0.0.1:2000"
By using this command the ffmpeg starts streaming the file in a very high rate; such that streaming of a file that has about 30 minutes length, is finished after just about 40 secs. I want to see the file in original rate. Also I want to have control on rate of video to play it faster or slower. Is there any options to do this? thank you.
Best Answer
-re
should be used as an input option, otherwise it will probably be ignored. A generalization of the basic syntax is:Do not use
-sameq
. See sameq does not mean "same quality" for a detailed explanation.Have you tried simply copying the streams instead of re-encoding? Add
-map 0 -codec copy
as output options.As for changing the video speed you can try the
setpts
multimedia filter. Note that you have to re-encode to use this filter. Examples from the documentation:For audio see the
asetpts
oratempo
filters.