[Ffmpeg-devel-irc] ffmpeg.log.20161205

[burek]

[00:47:34 CET] <thebombzen> kyleogrg: as far as I know, you can't.
[00:48:11 CET] <thebombzen> What you can do though is use: ffmpeg -i video -i audio -map 0 -map 1 -c copy -f matroska - | ffplay -f matroska -
[00:48:14 CET] <thebombzen> at least that's what I use
[00:48:29 CET] <thebombzen> you won't be able to seek though
[00:48:55 CET] <kyleogrg> thanks, but yeah, i was hoping to seek
[00:49:37 CET] <kyleogrg> i wonder if vlc can
[00:49:39 CET] <thebombzen> MPV might be able to do it, but I don't know.
[00:49:42 CET] <thebombzen> ask in #mpv
[00:49:49 CET] <kyleogrg> you mean mplayer?
[00:49:51 CET] <thebombzen> no
[00:50:14 CET] <kyleogrg> ah, i'll take a look
[00:50:17 CET] <thebombzen> mpv was a fork of mplayer but has the nice benefit of having commits in the last 6 years
[00:50:31 CET] <thebombzen> mplayer is old buggy and broken and based on old ffmpeg
[00:51:03 CET] <thebombzen> mpv is.. well not those things. it's currently in active development, stable, and keeps up to date with ffmpeg development.
[00:51:18 CET] <kyleogrg> good.  i never really used mplayer so i didn't know much about it
[00:53:03 CET] <c_14> mpv can do it with --audio-file
[00:55:42 CET] <thebombzen> and point.
[00:57:23 CET] <kyleogrg> c_14: just learning mpv command line now...
[00:57:45 CET] <c_14> mpv --audio-file foo bar
[00:58:22 CET] <kyleogrg> how do i put video+audio together?
[00:58:46 CET] <kyleogrg> mpv myvideo.m4v --audio-file myaudio.m4a ?
[00:58:54 CET] <c_14> yes
[00:58:59 CET] <kyleogrg> lemme try
[01:01:03 CET] <kyleogrg> wow, it works
[01:01:06 CET] <kyleogrg> cool, thanks
[01:15:28 CET] <kclough> I'm having an issue with the selective color filter. I created a photoshop selective color preset, but my output is always corrupt. http://pastebin.com/xmjC5JbB
[01:15:35 CET] <kclough> Any help is greatly appreciated.
[01:20:45 CET] <durandal_170> kclough: what you use for playback?
[01:23:15 CET] <kclough> Wow. I feel foolish, just tried with VLC and it does playback.
[01:23:26 CET] <kclough> I was originally trying to preview playback with OSX preview.
[01:23:57 CET] <kclough> Is there a way to have FFMPEG use the same encoding for the output as the input?
[01:25:41 CET] <durandal_170> kclough: message mentions what to do, just set output pix fmt to yuv420p
[01:26:54 CET] <kclough> Thanks durandal. I see that now.
[01:28:54 CET] <baphomet`> Does anyone have a script for fast webm creations that will calculate the bitrate of audio, video automatically and so it will match how long the video is?
[04:42:18 CET] <ItWasntMe2013> does anyone have any addtional suggestions when converting interlaced video to progressive?   other than deinterlacing, are there any other options that I can use to get rid of the ghosting video in high motion scenes?
[07:42:40 CET] <ferdna> when using strftime 1... why my %03d doesnt work anymore
[08:13:20 CET] <ferdna> http://stackoverflow.com/questions/40968895/why-doesnt-ffmpeg-name-files-with-sequence-after-using-strftime
[08:13:28 CET] <ferdna> need to know why
[08:41:46 CET] <flux> so what does it do instead?
[08:44:05 CET] <flux> in fact, you don't even tell what exactly you're doing, ie. the command line ;)
[08:45:58 CET] <flux> though I think the explanation is: instead of using sprintf you are asking ffmpeg to use strftime. strftime formats only dates. it does not format ie. additional numeric arguments.
[08:46:20 CET] <flux> %d by itself already means something else with strftime as you can see from your format string.
[09:10:26 CET] <ferdna> flux,
[09:10:43 CET] <ferdna> i would like to set the date then the sequence
[09:38:37 CET] <flux> ferdna, sorry, I don't have a solution for that
[09:38:53 CET] <ferdna> flux, yeah no worries.. i dont there is one... =(
[09:39:22 CET] <ferdna> i dont think there is one*
[11:00:12 CET] <luozijun> Hi, i have one problem, `AVCodecContext` can't set reslution like `1440x900 / 1234/1020` ?
[12:44:29 CET] <nonex86> hey, can someone help with the scale filter? i am using scale to resize the video preserving aspect ratio (with letterboxing/pillarboxing), but my approach works fine only with SAR 1:1 input video
[12:44:49 CET] <nonex86> i am using the following filter: "scale=%d:%d:force_original_aspect_ratio=decrease,pad=%d:%d:(ow-iw)/2:(oh-ih)/2"
[12:45:33 CET] <nonex86> is it possible to have one filter string to any cases with different SAR?
[12:46:21 CET] <nonex86> %d here is just a formatters, they are replaced with width and height respectively
[14:37:46 CET] <ella_> hi, is ffmpeg -i nafalta-sas.mov -c:a pcm_s16le -ar 48000 -ac 2 -map 0:0 -map 0:1 -map 0:2    -vcodec mpeg2video -vf scale=720:576 -r 25 -b:v 30000k -flags +ilme+ildct -alternate_scan 1 -top 1  nafalta-mov2.mxf isnt working
[14:38:02 CET] <ella_> track 2: could not find essence container ul, codec not currently supported in container Could not write header for output file #0 (incorrect codec parameters ?): Operation not permitted
[14:38:07 CET] <ella_> what should i do? thanks!!
[15:40:33 CET] <momomo> a bit out of scope, but i figured some one here might know
[15:41:52 CET] <momomo> is there a service for hls video advertisement insertion out there? i am thinking by manupiluation of the m3u8 playlist, one could include a url to an ad, could be external ... or downloaded ... to include it in the stream
[15:42:00 CET] <momomo> is this possible?
[15:42:05 CET] <henno> hi there. how can i make an accurarte seek to an actual frame index with the command line tool?
[15:42:12 CET] <JEEB> you can't
[15:42:19 CET] <henno> i thought so.. thanks
[15:42:56 CET] <JEEB> something like ffms2 or lwlibavvideosource is a wrapper around the libraries that handles frame-exactness much better by creating indexes
[15:43:22 CET] <momomo> I found this link .. https://support.google.com/adxbuyer/answer/6045575?hl=en ... what is VAST ?
[15:44:47 CET] <henno> now a bit more hard: while transcoding from mp4 to webm we get different frames on same time codes.. the video seems to have a different offset or starting point though it shouldn't. what can i do to force the same frames get reencoded (start time and endtime need to be exactly the same!)
[15:45:41 CET] <BtbN> inserting ads into the video stream itself is not trivial
[15:45:51 CET] <BtbN> It would very likely mess up the player quite a bit
[15:48:07 CET] <momomo> BtbN: i have pretty kick ass logic to control the player ... i do it on a session and user basis ..
[15:48:40 CET] <BtbN> still, it's way easier and safer to mute the primary player, and open another player on top
[15:49:34 CET] <momomo> BtbN: not a good solution for mobile though
[15:49:55 CET] <momomo> but is there a hls based ad server? what is the name for these things ?
[15:50:00 CET] <momomo> difficult to google
[15:50:08 CET] <momomo> ads for subscribers ?
[15:50:40 CET] <BtbN> Even the biggest user of HLS does not insert ads into the stream.
[15:51:45 CET] <momomo> what do you mean? i am bigger than the biggest user  :P
[15:51:49 CET] <BtbN> Twitch.
[15:52:02 CET] <momomo> do they have in stream ads ?
[15:52:05 CET] <BtbN> no
[15:52:09 CET] <BtbN> They overlay them
[15:52:29 CET] <momomo> BtbN: do you know how that works on mobile, especially iphone ?
[15:52:32 CET] <momomo> in browser
[15:52:40 CET] <BtbN> There are no Ads in their mobile Aps.
[15:52:45 CET] <momomo> ook
[15:52:55 CET] <BtbN> no video ads, that is.
[15:53:03 CET] <momomo> i guess i am the first one out there
[15:53:05 CET] <momomo> :p
[15:53:06 CET] <BtbN> Only banners and stuff I think, but very unobstrusive stuff
[15:53:31 CET] <BtbN> They prefer not to annoy their users with blasting ads.
[15:58:37 CET] <furq> surely youtube is the biggest user of hls
[15:58:49 CET] <kerio> twitch?
[15:58:53 CET] <kerio> youtube uses a lot of dash
[15:59:00 CET] <furq> they use hls for live streams
[15:59:16 CET] <kerio> which are watched by approximately fuck all
[15:59:18 CET] <furq> i guess it depends on your definition of biggest
[15:59:31 CET] <furq> youtube is the biggest entity which uses hls
[15:59:42 CET] <furq> but twitch probably uses it more
[15:59:48 CET] <BtbN> YouTube uses hls? What?
[15:59:52 CET] <kerio> google is the biggest entity which uses intercal
[16:00:04 CET] <BtbN> I'm quite sure youtube uses DASH
[16:00:10 CET] <furq> they use hls for live streams
[16:00:12 CET] <BtbN> Browsers don't support mpeg-ts
[16:00:13 CET] <kerio> because they used it once for an april fools joke
[16:00:42 CET] <BtbN> Twitch has a large JavaScript-Blob that transmuxes mpegts to mp4 on the fly.
[16:00:48 CET] <BtbN> Just so they could keep using HLS
[16:01:04 CET] <kerio> u wot m80
[16:01:19 CET] <kerio> oh on the server side?
[16:01:21 CET] <BtbN> no
[16:01:36 CET] <BtbN> Same thing as hls.js
[16:01:39 CET] <kerio> i'm pretty sure there's nothing but rtmp ingest and hls on the backend
[16:02:03 CET] <kerio> oh maybe i see what you mean
[16:02:13 CET] <kerio> for browsers that can't HLS
[16:02:16 CET] <BtbN> It's some EmScripten compiled thing that takes in the mpegts segments, and converts them to mp4, as Browsers don't support anything else via MSE.
[16:02:22 CET] <momomo> BtbN: why would they convert it?
[16:02:34 CET] <BtbN> Because Browsers don't support mpegts.
[16:02:41 CET] <BtbN> Except for Safari on OSX.
[16:02:46 CET] <furq> BtbN: http://vpaste.net/CfHh0
[16:02:47 CET] <kerio> best browser
[16:02:56 CET] <kerio> and sure as shit that's false
[16:02:59 CET] <momomo> what is the standard format of ts files ?
[16:03:04 CET] <momomo> couldn
[16:03:08 CET] <kerio> i've opened a m3u8 on edge at least
[16:03:13 CET] <kerio> chrome too, probably
[16:03:19 CET] <BtbN> Edge might be the second exception
[16:03:20 CET] <kerio> momomo: .ts
[16:03:24 CET] <furq> live streams are hls only as far as i can tell
[16:03:28 CET] <momomo> hls.js works on edge
[16:03:29 CET] <BtbN> But Anything Blink/Webkit Based and Firefox only support mp4
[16:03:40 CET] <BtbN> hls.js works everywhere...
[16:03:42 CET] <momomo> BtbN: why not use hls.js
[16:03:43 CET] <momomo> ?
[16:03:52 CET] <BtbN> Because it's an abomination?
[16:03:53 CET] <momomo> instead of "transmuxing" to mp4
[16:04:00 CET] <furq> that's what hls.js does
[16:04:05 CET] <kerio> >mfw my browser is the best
[16:04:07 CET] <BtbN> hls.js is a JavaScript mpegts->mp4 transmuxer.
[16:04:34 CET] <BtbN> furq, so they put mp4 into their HLS?! I'm quite sure that's against the spec.
[16:04:45 CET] <furq> maybe that's just what youtube-dl downloads it as
[16:04:46 CET] <BtbN> But sure, in theory that works.
[16:05:15 CET] <kerio> wouldn't the overhead eat you alive
[16:05:27 CET] <BtbN> what overhead?
[16:05:34 CET] <furq> if you mean cpu overhead from remuxing then no
[16:05:41 CET] <kerio> idk, bytes
[16:05:49 CET] <furq> size overhead from ts isn't that bad
[16:05:50 CET] <momomo> kerio: file ending is ts but maybe the encoding is mp4 ??
[16:05:54 CET] <furq> probably not that much worse than fragmented mp4
[16:06:01 CET] <momomo> so one could possibly use either
[16:06:16 CET] <kerio> but why can't you fix your browser instead
[16:06:24 CET] <kerio> to support superior encoding formats
[16:06:24 CET] <furq> because i am not ian mozilla
[16:06:50 CET] <BtbN> Because mpegts is patent encumbered.
[16:07:29 CET] <kerio> pay the patent :^)
[16:07:31 CET] <furq> i'm pretty sure youtube only use hls because otherwise it wouldn't work on iOS
[16:07:42 CET] <momomo> furq: same reason here
[16:07:53 CET] <kerio> what's the best open http streaming solution?
[16:08:00 CET] <momomo> hls
[16:08:02 CET] <BtbN> Apache?
[16:08:03 CET] <kerio> http GET on a mkv?
[16:08:33 CET] <BtbN> By now thanks to hls.js HLS is the widest supported thing.
[16:08:40 CET] <furq> oh wow
[16:08:54 CET] <furq> these fragments are showing up as mp4 in the firefox network panel
[16:09:02 CET] <flux> I suppose dash.js or some such doesn't work on Safari then?
[16:09:03 CET] <momomo> on another topic .. when generating a hls live with ffmpeg .. either 5s or 10s .. is 1 hour of saved content going to be significantly larger on 5s than 10s ?
[16:09:05 CET] <furq> maybe it is mp4 in hls
[16:09:08 CET] <furq> that's really awful
[16:09:16 CET] <kerio> BtbN: surely nginx
[16:09:27 CET] <kerio> but no that wasn't what i wanted to ask
[16:09:34 CET] <BtbN> momomo, it's exactly the same.
[16:09:39 CET] <BtbN> Just the mpegts file cut into segments.
[16:09:41 CET] <ritsuka> Apple added fragmented mp4 support in hls this year, so it would work too (but it requires iOS 10)
[16:10:04 CET] <flux> btbn, but if you have shorted segments, you need to have I-frames more often?
[16:10:13 CET] <kerio> what's my best bet to stream av1/opus?
[16:10:30 CET] <momomo> BtbN: i am thinking since each second should only store the changes of pixels from previous frame .. 5s should be larger
[16:10:33 CET] <BtbN> you need one at the beginning of each segment, yes. But with CBR that doesn't affect the size, just the quality
[16:10:36 CET] <furq> flux: iOS safari doesn't have MSE, so no DASH
[16:10:41 CET] <kerio> does anything other than ffmpeg use NUT?
[16:10:47 CET] <furq> except i remember someone in here mentioning that it does actually have MSE but only whitelisted sites can use it
[16:10:50 CET] <BtbN> And you don't want anything but strict cbr for streaming
[16:10:53 CET] <furq> and the whitelist is "netflix.com"
[16:10:57 CET] <kerio> xd
[16:11:06 CET] <furq> it's not difficult to imagine what's happened there
[16:12:25 CET] <flux> furq, how fucked up that is?
[16:12:44 CET] <kerio> maybe they're not confident about their implementation
[16:12:50 CET] <furq> sure
[16:12:51 CET] <furq> that'll be it
[16:12:53 CET] <momomo> ok, so not wanting to give on this idea immediately ( because solving it would be ideal ) .. is there an advertising content network for video broadcasters that allows you to host the advert from your own server and still get money ( i bet not )
[16:13:19 CET] <momomo> i would like access to advertising content
[16:13:41 CET] <furq> presumably at that point you would want to have people paying you to show their ads
[16:13:50 CET] <momomo> and participate in some program that can track impressions somewhow
[16:13:53 CET] <furq> or you'd use someone else's platform
[16:14:03 CET] <furq> someone else's video streaming platform, that is
[16:14:14 CET] <momomo> furq: it's difficult at day one or even after 30 days
[16:14:27 CET] <momomo> it would be easier to release and make money on day one
[16:14:49 CET] <momomo> cost of hosting video is big
[16:14:49 CET] <furq> i'm no expert on this but those are the two ways i imagine you could get ads in your stream
[16:15:42 CET] <momomo> furq: you mean like let google, amazon or someone serve the live streams?
[16:16:22 CET] <furq> yeah there's no way someone like adwords is going to let you use your own platform
[16:16:39 CET] <furq> idk though
[16:16:56 CET] <furq> maybe there is a video ad network out there which has a way to keep track of all this
[16:17:17 CET] <momomo> furq: yes, i don't suspect that either .. that is why opted for someone having thought of the possibility of allowing you to point to hls segment file of say 15 second in your m3u8
[16:18:22 CET] <momomo> by controlling hte generation of the m3u8 per user and session .. i can actually decide to insert that piece .. and then keep track of the user and 15 sec later serve him hls segment -15s
[16:19:19 CET] <momomo> if he reloads he is back at zero
[16:57:32 CET] <momomo> anyone knows how one can upload a live stream on for instance youtube?
[16:58:14 CET] <momomo> does it convert a mp4 source to ts files itself?
[19:25:47 CET] <cnote> why does video/audio  uses  bit/s  not  byte/s
[19:26:02 CET] <cnote> for example  mp3 128 kbps
[19:28:27 CET] <BtbN> because you'd end up with way too low numbers at times
[19:29:26 CET] <cnote> who cares
[19:29:38 CET] <cnote> if you end up with low numbers
[19:30:16 CET] <BtbN> well, enough people who are relevant for audio/video standards do. So bits per second it is
[19:30:52 CET] <cnote> is that really the reason why?
[19:31:00 CET] <cnote> i think there is more to it than that
[19:34:11 CET] <BtbN> keep in mind that stuff was decided long long ago, when internet speeds where a 56k modem was still the shit
[19:35:20 CET] <cnote> btbn i see
[19:36:02 CET] <cnote> but still  there should be a better reason than "low numbers"
[20:15:59 CET] <theperfectpunk> i am not able to get a hardware reference to my nvidia card for using vaapi
[20:16:31 CET] <theperfectpunk> i was able to get vaapi working using /dev/dri/renderD128 for my integrated nvidia
[20:17:48 CET] <theperfectpunk> i don't know what to put in vaapi_device
[20:18:26 CET] <theperfectpunk> is there any way i can find what the hardware reference is?
[20:19:54 CET] <BtbN> nvidia uses vdpau?
[20:20:42 CET] <theperfectpunk> i got an old 9800 GTX+
[20:21:03 CET] <theperfectpunk> wanted to check if it is any faster in video encoding than my integrated HD3000 in 2600k
[20:21:19 CET] <furq> that's way too old to have a video encoder
[20:22:51 CET] <furq> nvenc was only added on the 600 series iirc
[20:22:56 CET] <theperfectpunk> yes i know
[20:22:58 CET] <BtbN> Kepler, 700 series.
[20:23:06 CET] <theperfectpunk> it works very well with my 750m
[20:23:09 CET] <theperfectpunk> on my laptop
[20:23:51 CET] <theperfectpunk> i saw vaapi and vdpau support for my 9800GTX+, so went in to see if it were any faster than intel quick sync in 2nd gen processors
[20:24:25 CET] <BtbN> nvidia does not support vaapi.
[20:24:36 CET] <BtbN> And that card is old, it does not have a video encoder.
[20:24:45 CET] <vans163> theperfectpunk: do you know how many FPS intel quick sync gets at 1080p?
[20:24:50 CET] <vans163> to encode
[20:25:04 CET] <vans163> doesnt seem many details about it online
[20:25:09 CET] <furq> yeah that support probably refers to decoding
[20:25:46 CET] <furq> ffmpeg doesn't support gpu encoding beyond any opencl features that individual codecs might have, which generally isn't many (if any)
[20:26:34 CET] <theperfectpunk> well i tried out 1080p @ 60fps 25M
[20:26:44 CET] <theperfectpunk> gave between 70-80
[20:26:45 CET] <furq> nvenc and quicksync have nothing to do with the gpu, they're discrete asics
[20:27:04 CET] <furq> they just happen to be quite near gpus
[20:27:24 CET] <theperfectpunk> isn't CUDA about encoding?
[20:27:27 CET] <furq> no
[20:27:50 CET] <furq> x264 has some very limited opencl acceleration but it's of questionable value
[20:27:56 CET] <furq> maybe some other codecs do as well
[20:27:57 CET] <vans163> theperfectpunk: thanks
[20:28:24 CET] <vans163> kind of low compared to nvidias encoders but expected
[20:28:36 CET] <DHE> CUDA is a general purpose processing library. ffmpeg has a few filters that are CUDA-enabled. or maybe opencl
[20:28:43 CET] <theperfectpunk> yes i know
[20:28:44 CET] <furq> yeah there are some filters which use it
[20:28:46 CET] <DHE> but I believe nvidia does integrate their encoders with the cuda layer
[20:28:53 CET] <theperfectpunk> the bitrate is high
[20:28:58 CET] <theperfectpunk> 25000kbps
[20:29:49 CET] <theperfectpunk> on the 750M i got around 350-400fps for 1080p at 4M bitrate
[20:30:11 CET] <furq> i think all the accelerated filters in libavfilter are opencl
[20:30:26 CET] <theperfectpunk> lemme check if cuda works
[20:30:35 CET] <furq> maybe stuff like nvresize is cuda but that's a third-party filter
[20:30:39 CET] <theperfectpunk> there's something about it in here
[20:30:41 CET] <theperfectpunk> https://trac.ffmpeg.org/wiki/HWAccelIntro
[20:30:55 CET] <vans163> theperfectpunk: that seems high for keplar, i would of expected 250~
[20:31:01 CET] <furq> cuvid is a decoder
[20:31:06 CET] <durandal_1707> there is simd for some filters
[20:31:21 CET] <theperfectpunk> man
[20:31:25 CET] <theperfectpunk> facepalm
[20:32:03 CET] <furq> CUVID, which is also called nvdec by Nvidia now,
[20:32:05 CET] <furq> oh that's nice
[20:32:08 CET] <furq> nvdec is a much better name
[20:32:24 CET] <theperfectpunk> are software decoders better then hardware decoders in terms of quality
[20:32:32 CET] <furq> software encoders certainly are
[20:32:35 CET] <theperfectpunk> because i heard so somewhere
[20:32:39 CET] <furq> i don't think it makes much difference for decoders
[20:32:44 CET] <BtbN> decoding is bit exact iirc
[20:32:47 CET] <furq> yeah
[20:33:10 CET] <furq> certainly with all the codecs you're likely to have hwaccel for
[20:33:11 CET] <theperfectpunk> in the cuda decoder it says "While decoding 10 bit video is supported, CUVID is only able to output 8 bit video, so the additional 2 bits are lost in the process.
[20:33:35 CET] <furq> i'd class that under format support rather than quality
[20:34:27 CET] <furq> i've never tried but i'm pretty sure 10-bit video gets fucked up, rather than just looking slightly worse
[20:34:48 CET] <BtbN> works fine if your hw supports it.
[20:35:01 CET] <BtbN> It converts to NV12 on output though
[20:35:06 CET] <efface> I have spent several days troubleshooting this and I am at my wits end......ffmpeg cannot join a udp multicast UNLESS i join that multicast in VLC first.  I am running centos7.  Anyone able to point me in the right direction?
[20:35:09 CET] <theperfectpunk> yeah that
[20:35:16 CET] <theperfectpunk> what is nv12?
[20:35:27 CET] <theperfectpunk> i have to specify it everytime when using vaapi
[20:35:34 CET] <efface> btw i have seen this same behavior on mint linux as well
[20:35:36 CET] <furq> yuv420p
[20:35:38 CET] <persina> How can I change the aspect ratio of a video?
[20:35:51 CET] <theperfectpunk> why do we write yuv420p then
[20:35:55 CET] <theperfectpunk> *don't
[20:36:15 CET] <persina> How can I change the aspect ratio of a video without making it look stretched or tall?
[20:36:20 CET] <furq> oh it isn't yuv420p
[20:36:35 CET] <furq> it's 4:2:0 with planar y and packed uv
[20:37:31 CET] <theperfectpunk> so its yuv420sp
[20:37:39 CET] <furq> is that a thing
[20:37:53 CET] <theperfectpunk> i saw it here https://en.wikipedia.org/wiki/YUV#Y.E2.80.B2UV420sp_.28NV21.29_to_RGB_conversion_.28Android.29
[20:38:06 CET] <furq> that's nv21
[20:38:16 CET] <furq> which is the same except v and u are reversed, because why not
[20:38:20 CET] <theperfectpunk> facepalm
[20:38:34 CET] <furq> i have no idea what the sp stands for there
[20:38:44 CET] <furq> "somewhat planar"
[20:39:46 CET] <theperfectpunk> you were right
[20:39:57 CET] <theperfectpunk> it's semi-planar
[20:41:11 CET] <furq> bye
[20:41:57 CET] <furq> persina: -aspect 21:9
[20:42:07 CET] <furq> "without looking stretched or tall" is a question only you can answer
[20:46:59 CET] <persina> furq: I want to set a new aspect ration while maintaining the original one.
[20:50:00 CET] <persina> furq: For example if the original video has aspect ration 10:7 and I use -aspect 32:27 I want it to add black padding around the side instead of stretching it to make it taller...does that make sense?
[23:08:20 CET] <efface> I have a weird problem, i cannot join a udp multicast input unless i join that input in vlc first
[23:08:38 CET] <efface> Could i have a compiling issue or something?
[23:20:26 CET] <HelloAtMega> Hello
[23:20:33 CET] <HelloAtMega> Anyone around?
[23:20:51 CET] <HelloAtMega> I was trying to compile ffmeg under Debian Jessie 64bit
[23:21:16 CET] <HelloAtMega> and after I have installed libx265 and running the command to compile ffmeg
[23:21:24 CET] <HelloAtMega> the command that is in the site
[23:21:31 CET] <HelloAtMega> https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu
[23:21:38 CET] <HelloAtMega> I get an error saying
[23:21:49 CET] <HelloAtMega> ERROR: x265 not found using pkg-config
[23:21:54 CET] <HelloAtMega> Can anyone help me solving this problem?
[23:22:13 CET] <efface> I think you need to install pkg-config
[23:23:10 CET] <HelloAtMega> let me check if I have it installed
[23:23:55 CET] <HelloAtMega> I have it installed
[23:24:18 CET] <HelloAtMega> pkg-config --version
[23:24:18 CET] <HelloAtMega> 0.28
[23:24:58 CET] <HelloAtMega> I found this, but I doubt it solves the problem
[23:25:02 CET] <HelloAtMega> https://ffmpeg.zeranoe.com/forum/viewtopic.php?t=1948
[23:25:05 CET] <furq> what does it say in config.log
[23:25:14 CET] <furq> there should be an error somewhere near the endo
[23:25:21 CET] <furq> -o
[23:26:08 CET] <HelloAtMega> let me check
[23:28:49 CET] <HelloAtMega> cannot find -lnuma
[23:28:56 CET] <HelloAtMega> What does this means?
[23:29:04 CET] <HelloAtMega> Is this a package? A missing one?
[23:30:05 CET] <HelloAtMega> Is it libnuma?
[23:30:22 CET] <HelloAtMega> I have this:
[23:30:25 CET] <HelloAtMega> num-utils - programs for dealing with numbers from the command line
[23:30:36 CET] <HelloAtMega> libnuma-dbg - Debug package for libnuma
[23:30:36 CET] <HelloAtMega> libnuma-dev - Development files for libnuma
[23:30:36 CET] <HelloAtMega> libnuma1 - Libraries for controlling NUMA policy
[23:30:36 CET] <HelloAtMega> numactl - NUMA scheduling and memory placement tool
[23:33:06 CET] <HelloAtMega> Done
[23:34:51 CET] <HelloAtMega> Is it normal that when I issue the:
[23:34:53 CET] <HelloAtMega> PATH="$HOME/bin:$PATH" make
[23:35:04 CET] <HelloAtMega> command, I get a lot of warnings during the compilation?
[23:35:29 CET] <HelloAtMega> mainly about deprecated codecs and set but not used variables
[00:00:00 CET] --- Tue Dec  6 2016