BtbN changed the topic of #ffmpeg to: Welcome to the FFmpeg USER support channel | Development channel: #ffmpeg-devel | Bug reports: https://ffmpeg.org/bugreports.html | Wiki: https://trac.ffmpeg.org/ | This channel is publically logged | FFmpeg 7.0 is released
<icedice>
Thanks furq, seems like it's a different format than the one I'm used to, so I'm still getting errors
<icedice>
Could you write the whole command out?
<icedice>
-acodec copy -vcodec libx264 -preset veryslow -crf 18 is the bit I need to use it with
<icedice>
I tried acodec=copy:vcodec=libx264:preset=veryslow:crf=18:scale=w=1920:h=1080:flags=bicubic:param0=1/3:param1=1/3 but that didn't work
<furq>
the things i wrote go after -vf
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<icedice>
Oh
<icedice>
Right
<icedice>
I've been staring at the screen for too long
<icedice>
Thanks, I got it now
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<icedice>
furq: I almost forgot, mitchell needs to be in linear light, so I'm guessing that means zscale
<icedice>
And then some way to specify linear light
<icedice>
I saw zscale=transfer=linear in the docs, but that didn't work for me
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<zoff99>
if i remove the loudnorm filters it works without delay. but the audio is not loud enough :-(
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<kepstin>
that's just how loudnorm works, it adds delay (uses a fair bit of lookahead)
<kepstin>
it can be used in "real time", as long as you can tolerate the added delay. I often use it when watching live streams of people who aren't good at normalizing their stream loudness :)
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<solaraquarion>
@another| yes
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<solaraquarion>
it doesn't provide a pkg-config
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<gianluca_>
Good evening, I am trying to build ffmpeg from git source with libplacebo filter enabled but I don't know why it does not get enabled.
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<gianluca_>
Should I post the configure command I have used ?
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<haasn>
--enable-libplacebo --enable-vulkan --enable-libglslang is what I usually use
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<lmat>
I have several videos taken with my cell' 'phone camera (about 10 videos totalling 3.3 minutes) and I would like to concatenate them. Some are portrait, some landscape. I would like them to stay portrait or landscape and add black space as needed. How do I do that?
<lmat>
Oh yeah, I did ffmpeg -f concat -i filelist -c copy combined-video.mp4; and this twists all the "portrait" videos to landscape.
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<zoff99>
ok. is there something similar to loudnorm, but real realtime? without delay?
<zoff99>
i didnt find a proper filter like that. i hope there is one
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<lmat>
zoff99: Does loudnorm need to scan the entire medium first before it works? In that case, it can't be realtime.
<furq>
there's a single-pass mode but it needs to read a few seconds ahead
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<kepstin>
with no read ahead, it could only react as or after the signal loudness changes, which can lead to bursts of loudness or distortion :/
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<msrd0>
hey, is there any method to debug why filters sometimes eat all available ram? happens to me every now and then, especially when I use overlay filters
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<welder>
Hello, are there any plans to support pipewire input (just like pulseaudio with -f pulse)?
<another|>
IIRC are patches on the ML
<another|>
or maybe that was just for video
<welder>
thanks, will take a look
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<BtbN>
for audio input with pipewire, just use PA
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<solaraquarion>
another|: i have no idea what's going on with quirc
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<another|>
neither do I
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