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
<echelon> another|: the -vf flag wasn't the cause of the error.. i still get https://paste.ee/r/XnTmn
<echelon> unable to map stream at v:1
<wyatt8740> 1:v, not v:1 i think
<wyatt8740> but if you only have one file it'd be 0:v
<echelon> it's not a file, the source is x11grab
<wyatt8740> ah you're struggling with x11grab as well
<echelon> :}
<wyatt8740> although mine is a previously working setup
<echelon> well, i don't know if x11grab is the issue here, i'm basically trying to stream to hls with dual resolution output
<wyatt8740> i dn't think it's my issue either
<wyatt8740> hm you might want filter_complex
<wyatt8740> let me check something
<another|> echelon: you only have one stream mapped
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<echelon> -var_stream_map "v:0,name:small v:1,name:full"
<another|> if you want the same input stream twice, you'll need to map it again
<another|> `-map 0:v:0`
<echelon> oh!
<echelon> so i need to do -map 1:v:1?
<wyatt8740> -filter_complex '[1:v]split=2[vid_a][vid_b];[vid_a]scale=whatever[vid_a_scaled];[vid_b]scale=whatever[vid_b_scaled]' -map '[vid_b_scaled]' -map '[vid_a_scaled]'
<wyatt8740> something like that might work
<wyatt8740> untested
<echelon> oh! i passed -map 0:v:0 again
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<echelon> yes!
<echelon> thanks!
<wyatt8740> what i suggested worked?
<echelon> i didn't try what you suggested :/
<wyatt8740> no need to :p
<wyatt8740> just was trying to figure out
<echelon> this is what is working https://paste.ee/r/qo3c5
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<aphysically> hmmmm, yeah on latest master it looks like while it doesn't throw errors it just has black video now for my test dolby vision file :thinking: but works for the not dolby vision file and when not transferring to cuda what
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<aphysically> yeah idk why the vulkan->placebo->cuda encode pipeline would work for non-dolby vision videos but give black output for dolby vision, but then work for noncuda output
<aphysically> something cursed for sure
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<aphysically> hmmm, also broken on an hdr10 test file
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<aphysically> if I disable hwaccel then it works :thinking:
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<aphysically> 10 bit encoding is green shaded for some reason, but apparently there's an nvidia driver bug with 10 bit encoding so I'm going to wait until that's fixed before I bother trying to debug it
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<faLUKE> Hi, what's wrong with this? ffmpeg -video_size 1920x1080 -framerate 25 -f x11grab -i :0 -c:v libx265 -f pulse -ac 2 -i alsa_output.pci-0000_00_1f.3-platform-skl_hda_dsp_generic.HiFi__hw_sofhdadsp__sink.monitor output.mkv ... It says: "Unknown decoder 'libx265' .
<faLUKE> if I remove -c:v libx265 it encodes with x264
<faLUKE> and if I use -c:v libx264 it says "unknown decoder libx264"
<CounterPillow> put the -c:v after the last -i
<CounterPillow> order matters
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<CounterPillow> Also, you probably want to set some options like crf for the encoder, but you do you
<faLUKE> thanks, solved
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<aphysically> hmmm, maybe gonna work next more to see if I can get hwaccel to work with vulkan and cuda, still bizarre to me
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<aphysically> woooow the banding on the nvidia av1 encoder is terrible
<aphysically> whyyyyyy