michaelni changed the topic of #ffmpeg-devel to: Welcome to the FFmpeg development channel | Questions about using FFmpeg or developing with libav* libs should be asked in #ffmpeg | This channel is publicly logged | FFmpeg 7.1.1 has been released! | Please read ffmpeg.org/developer.html#Code-of-conduct
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<jkqxz>
The timestamp for the licence file is newer. Maybe they changed it but the version on xiph still has an old licence?
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<compn>
they can set different copyright licenses on the same video
<compn>
one video several licenses
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<thardin>
can HLS do multiple subtitles? from reading the spec it seems like nothing should prevent it
<thardin>
EXT-X-MEDIA seems relevant in particular
<mindfreeze>
jkqxz: yes, they uodated all licenses to CC, thanks to 3gpp
<mindfreeze>
This was in 2021, but it is less documented across
<mindfreeze>
Or 22
<thardin>
I see there's -cc_stream_map but that's of course for closed captions, not subs
<JEEB>
thardin: my understanding is yes
<JEEB>
you can have just fine multiple subtitles and then of course preferably you have differing languages identifiers or "for hard of hearing" etc flags
<JEEB>
I don't think there should be any additional options required really, just input of multiple subtitle streams
<thardin>
it doesn't work at the moment, but that can be fixed
<thardin>
also why doesn't hlsenc "link" the vtt playlist in the master playlist?
<thardin>
there's nothing in the spec that says that foo.m3u8 should have subs in foo_vtt.m3u8
<thardin>
and ffprobe doesn't pick up on it
<JEEB>
lol, fun
<JEEB>
yea it's just ad-hoc additions into the writer
<JEEB>
I wouldn't be surprised if just writing out HLS from the dash muxer would actually give somewhat different results
<JEEB>
since yes, the dash muxer has a mode to write both HLS and DASH
<thardin>
dashenc doesn't seem to support subs
<JEEB>
vOv
<thardin>
it needed -scodec mov_text
<JEEB>
lol
<JEEB>
essentially what's supported by DASH is webvtt and ttml
<JEEB>
and you don't necessarily have to have the segments as mp4
<JEEB>
(I don't think the dash spec says anything about that)
<thardin>
interesting. it also seems like youtube support DASH ingest
<TheVibeCoder>
Lynne: its faster than anything else, any size, specially for non-power of 2, single-float precision looks like TX
<Lynne>
idgaf
<Lynne>
I'll make lavu/tx faster when I have time
<TheVibeCoder>
i thinks its mostly SIMD side
<TheVibeCoder>
there are some faster algorithms but at worse precision
<TheVibeCoder>
also there is some trick to reduce number of multiplications with twiddles when combining with PFA
<TheVibeCoder>
also there are other factorization combinations that may be faster
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<kierank>
"The Amazon CloudFront distribution is configured to block access from your country. "
<jamrial_>
kierank: yeah, same here
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<TheVibeCoder>
amazon cloudfront is gatekeeping access to the fastest FFT/RDFT on earth
<TheVibeCoder>
i heard in the news on CNN, that elenril is coming back as lead developer of FFmpeg.
<toots5446>
michaelni: Thanks for the review. I'll address them. I should have tested more extensively with FATE, sorry about that.
<TheVibeCoder>
does anything use half-float in audio?
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<fflogger>
[newticket] SpraxDev: Ticket #11560 ([avformat] HLS audio streams do not use var_stream_map name in master playlist) created https://trac.ffmpeg.org/ticket/11560