Search found 4 matches

by tomsss
Sun Nov 04, 2018 11:33 am
Forum: Developement with FFmpeg
Topic: cut and concat .mxf produces 2 broken frames
Replies: 0
Views: 857

cut and concat .mxf produces 2 broken frames

We have a problem cutting and concating mxf (mpeg2video,25fps). To create parts of the original mxf file we do : "fmpeg -copyts -fflags +genpts -i C:\Users\thoma\Videos\MVI_3308.mxf -y -ss 2.44 -to 9.4 -c copy -ignore_unknown -map 0 ./temp/precut0.mxf and to concat: ffmpeg -copyts -f concat -i ./tem...
by tomsss
Wed Oct 03, 2018 1:08 pm
Forum: Developement with FFmpeg
Topic: use amix and weights
Replies: 1
Views: 1122

use amix and weights

Hi,
i want to make my own 5.1 stero downmix. My code is a filter_complex "[a01][a02][a03][a04]amix=inputs=4:weights=1|0.8|0.5|0.8:duration=longest,volume=4[outa]"
This code works for the mixing, but the weights (1,0.8,.05...) does not make any changes.

Thanks Thomas
by tomsss
Wed Sep 26, 2018 9:37 am
Forum: Developement with FFmpeg
Topic: Problem with anullsink
Replies: 2
Views: 921

Re: Problem with anullsink

Thanks a lot, this was the Problem!
by tomsss
Mon Sep 24, 2018 11:27 am
Forum: Developement with FFmpeg
Topic: Problem with anullsink
Replies: 2
Views: 921

Problem with anullsink

Hi, I'm converting a .mov file with one audiotrack/6 channels. I want to delete/mute the center channel. First step to do this i use "-filter_complex [1:1:a]apad,channelsplit=channel_layout=5.1(side)[FLa0][FRa0][FCa0][LFEa0][SLa0][SRa0]..." then i route the center channel to anullsink "....[FCa0]anu...
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