<aaabbb>
kepstin: so for low-res videos that never exceed 5 minutes (and 1mb), is keyint=-1 appropriate? it seems to be able to seek without too much effort for the player
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<MisterMinister>
Greetings! Is there an option to add blank SCTE-35 data track, PID type 0x86 please, similar to what specified in tsduck https://github.com/tsduck/tsduck/issues/375 ?
<DeHackEd>
at this time, the answer appears to be No...
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<zumba_addict>
I have several mp4 files(from a concert) with different pix_fmt. What is the proper way of adding them all and making one big file?
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<zumba_addict>
I'm getting an error of "No output pad can be associated to link label '1:a:0" I followed this page, last section, different codecs - https://trac.ffmpeg.org/wiki/Concatenate
<zumba_addict>
omg, i don't know when it will finish
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<zumba_addict>
a 5g takes about 45 mins to 1hr on this old machine, LOL. Total size of all files is 75gigabyte
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<zumba_addict>
hmm, I got this "deprecated pixel format used, make sure you did set range correctly", 10 lines of that. I used -pix_fmt yuvj420p
<zumba_addict>
i'm generating an mp4 and I don't want to loose quality
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<zumba_addict>
i know it's a warning
<kepstin>
if your goal is to make an mp4 that's playable in normal players, especially browsers, you should use limited-range yuv420
<zumba_addict>
for youtube, do they accept yuvj420p?
<kepstin>
if they do, they'll convert to limited range
<zumba_addict>
oh gotcha
<kepstin>
if your inputs are all normal limited-range files, then converting to full-range technically is a quality reduction, too.
<zumba_addict>
they were yuv422 originally then I converted it to yuv420p but as I was working on for weeks, I decided to use yuvj420p on the remaining files
<zumba_addict>
now I am combiining all of them to 1 mp4 file
<zumba_addict>
I guess I won't be able to see degradation in quality like banding since it was a concert and dark
<zumba_addict>
when using yuv420p
<BtbN>
yuvj is deprecated since over a decade at this point
<BtbN>
I think it'lll finally be gone in 7.0
<zumba_addict>
what should I use?
<BtbN>
What it suggests in the warning
<zumba_addict>
no suggestion in the warning
<BtbN>
You just quoted it, with the suggesting in it?
<zumba_addict>
I'm not sure what I wrote earlier, can't find that string
<zumba_addict>
"deprecated pixel format used, make sure you did set range correctly",
<BtbN>
"deprecated pixel format used, make sure you did set range correctly"
<zumba_addict>
yep, I don't see any suggestion
<BtbN>
set the color range correctly instead
<zumba_addict>
my input files had different pix formats
<zumba_addict>
ok
<zumba_addict>
i'll use yuv420p
<BtbN>
color range is generally unrelated to pixel format
<BtbN>
which is why yuvj420p is kinda a bit of an abomination of a format
<zumba_addict>
i guess yuv420p is browser friendly since it supports limited color range 16-200+ something
<zumba_addict>
or is my thinking wrong?
<zumba_addict>
I still got the warnings even after passing yuv420p
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<zumba_addict>
I ran ffmpeg -i input.mp4. The Stream #0:1 is Audio: aac and so on. It is ok I used `[[1:v:0]1:a:0]`? I'm confused about 0:1 in the output.
<zumba_addict>
or should I use `[1:v:0]1:a:1]`?
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<zumba_addict>
oh i think 0:a:0 is good. I just saw this `Stream #0:1 (aac) -> concat:in0:a0`
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