[Ffmpeg-devel-irc] ffmpeg.log.20180727

burek burek021 at gmail.com
Sat Jul 28 03:05:01 EEST 2018


[00:33:52 CEST] <duriangray> hi
[00:34:30 CEST] <duriangray> hi - So i am piping out: ffmpeg -i http://source.com -c copy -f mpegts udp://127.0.0.1:9000
[00:34:47 CEST] <duriangray> how do i pull it in from another server?
[01:17:45 CEST] <lyncher> poutine: yes, I'm trying to add SEI messages (itu35) with 608 captions. right now I'm not even able to transcode a h264->h265 and keep the captions
[03:31:17 CEST] <rasten33> hm
[03:32:36 CEST] <rasten33> yyu believe in the holocaust?
[04:51:46 CEST] <codebam> how do I transcode the audio from another video into this video?
[04:51:51 CEST] <codebam> I'd use copy for the video format
[04:51:57 CEST] <codebam> but how do I do the audio
[04:52:12 CEST] <furq> -i foo -i bar -map 0:v -map 1:a
[04:52:30 CEST] <codebam> oh cool I can specify another input
[04:52:32 CEST] <codebam> thanks
[05:25:46 CEST] <linuxmaster1> rasten33: we are the holocaust
[06:07:39 CEST] <rasten33> lolocauster
[06:07:53 CEST] <rasten33> the roller casters f death
[06:07:59 CEST] <rasten33> funny ass
[06:08:50 CEST] <Cracki> did you know having questions about that in your country is... dangerous?
[06:08:54 CEST] <rasten33> fuckin lies, the h0l0csust
[06:09:08 CEST] <rasten33> i was jailed already
[06:09:11 CEST] <rasten33> 18 mnoths
[06:09:46 CEST] <Cracki> make informative postcards/flyers and distribute them.
[06:09:58 CEST] <rasten33> nah
[06:10:07 CEST] <Cracki> there might be more consequences for that though
[06:10:13 CEST] <rasten33> hehe
[06:10:20 CEST] <rasten33> its silly
[06:10:33 CEST] <rasten33> smart flks know whts up
[06:10:38 CEST] <rasten33> stupid peple believe lies
[06:10:51 CEST] <Cracki> silly is when wikipedia "cites" sources on the second world war that were published in 2010
[06:11:25 CEST] <rasten33> if yu can talk abut it withut giong to jail
[06:11:27 CEST] <rasten33> d it
[06:11:36 CEST] <Cracki> the chain of retellings for that time span must be impenetrable. I'd cite publications from temporally closer.
[06:11:51 CEST] <rasten33> it is just silly
[06:12:02 CEST] <rasten33> gas chabers with glas windws
[06:12:08 CEST] <Cracki> are you into microcontrollers perhaps?
[06:12:16 CEST] <rasten33> noo
[06:12:32 CEST] <Cracki> might be something you could enjoy
[06:12:51 CEST] <rasten33> if yu believe bullshit hlocaust you deserve your slavery
[06:12:52 CEST] <Cracki> there are different kinds. my personal favorite is the stm32. it's an arm cortex-m.
[06:13:26 CEST] <Cracki> so... what are you doing with ffmpeg?
[06:13:32 CEST] <Cracki> anything fun or interesting?
[06:13:44 CEST] <rasten33>  testing motion interpolationo
[06:13:51 CEST] <Cracki> good stuff!
[06:13:52 CEST] <rasten33> greets t 8200
[06:14:40 CEST] <rasten33> i'd like a jew wife if i can find ne
[06:15:52 CEST] <rasten33> n the ther hand id like t kill yu
[06:16:15 CEST] <rasten33> kike
[06:16:43 CEST] <Cracki> what are you trying to achieve with this blunt approach?
[06:17:12 CEST] <rasten33> intelligence selectiono
[06:17:25 CEST] <rasten33> i fear with jew control stupid will procreate
[06:17:51 CEST] <rasten33> i dnt care who wins
[06:17:59 CEST] <rasten33> i just want mre smart
[06:20:24 CEST] <rasten33> well
[06:20:27 CEST] <duriangray> what country r u from>?
[06:20:32 CEST] <rasten33> mars
[06:20:38 CEST] <rasten33> optimally we kill all jews
[06:20:41 CEST] <rasten33> but barring that
[06:21:43 CEST] <duriangray> ??? i am so confused
[06:21:51 CEST] <rasten33> jews are evil
[06:21:55 CEST] <duriangray> what does jews have to do with ffmpeg?
[06:21:56 CEST] <rasten33> they did communism
[06:22:03 CEST] <rasten33> and ww1 and ww2
[06:22:05 CEST] <rasten33> they are satan
[06:22:23 CEST] <rasten33> i dunno this asshle started the cnversationo
[06:35:38 CEST] <rasten33> well cunt
[06:35:52 CEST] <rasten33> hows the kikedm ding
[06:36:31 CEST] <rasten33> lol
[06:36:38 CEST] <rasten33> fuckin kikes
[07:01:20 CEST] <rasten33> you fucks did 9/11
[07:01:43 CEST] <rasten33> your jew courts are blocking the victim lawsuits
[07:02:17 CEST] <rasten33> you did the USS LIberty attack
[07:02:22 CEST] <rasten33> and the JFK assassinationo
[07:02:26 CEST] <rasten33> you are satan
[07:04:43 CEST] <rasten33> 6
[07:29:10 CEST] <linuxmaster1> Happy Sysadmin's Day!
[08:19:32 CEST] <codebam> linuxmaster1: cool! about to tell all my friends
[08:19:42 CEST] <codebam> happy sysadmin's day to you too
[08:57:08 CEST] <g0> How does one actually enable the kmsgrab device at configure time? 'configure' does not have any word about it other than ./configure:kmsgrab_indev_deps="libdrm"
[08:57:55 CEST] <furq> generally if there's no --enable switch then it's enabled by default as long as the dependencies are met
[08:58:04 CEST] <furq> so i guess make sure that configure can find libdrm
[09:02:55 CEST] <g0> ah so I needed --enable-libdrm
[12:05:32 CEST] <Guest29467> Hello everybody
[12:06:20 CEST] <Guest29467> I have a big problem on my project using ffmpeg
[12:06:41 CEST] <Guest29467> I have one video with crossfade effect and i want add text on this video (drawtext).  However when i add a filter text, he remove a crossfade effect in the final video.
[12:07:12 CEST] <Guest29467> command with crossfade : ffmpeg -i first.mp4 -i second.mp4 -filter_complex      	"[0:v]trim=start=0:end=2,setpts=PTS-STARTPTS[0_clip_1];     	[0:v]trim=start=2:end=3,setpts=PTS-STARTPTS[fadeoutsrc_0];     	[fadeoutsrc_0]format=pix_fmts=yuva420p,fade=t=out:st=0:d=1:alpha=1[fadeout_0];     	[fadeout_0]fifo[fadeoutfifo_0];[1:v]trim=start=1,setpts=PTS-STARTPTS[1_clip_2];     	[1:v]trim=start=0:end=1,setpts=PTS-STARTPTS[fadeinsrc_1];  
[12:07:31 CEST] <Guest29467> and command drawtext : ffmpeg -i videoWithCrossfade.mp4 -filter_complex      	"/Windows/fonts/arial.ttf':text='hello world!':fontcolor=white:fontsize=40:box=1:boxcolor=red     	@0.5:boxborderw=10:x=500:y=500"     	output.mp4
[12:08:53 CEST] <Guest29467> https://pastebin.com/j1tfs7s3
[12:12:46 CEST] <Guest29467> Hello everybody
[12:12:50 CEST] <Guest29467> I have a big problem on my project using ffmpeg
[12:12:59 CEST] <Guest29467> I have one video with crossfade effect and i want add text on this video (drawtext).  However when i add a filter text, he remove a crossfade effect in the final video.
[12:13:12 CEST] <Guest29467> https://pastebin.com/j1tfs7s3
[12:24:44 CEST] <Guest29467>  Hello everybody. I have a big problem on my project using ffmpeg. I have one video with crossfade effect and i want add text on this video (drawtext).  However when i add a filter text, he remove a crossfade effect in the final video.
[12:24:49 CEST] <Guest29467> https://pastebin.com/j1tfs7s3
[12:25:05 CEST] <Guest29467> thanks for your help
[18:50:08 CEST] <peloverde> Does anyone have a recording (flv or pcap) of elemental's scte-35 rtmp output?
[18:51:39 CEST] <JEEB> nope
[19:11:17 CEST] <serialnuts> hi I am getting a few errors with ffmpeg while trying this out. Could anyone please help me out pointing out where the syntax is wrong on my part?
[19:11:57 CEST] <serialnuts> ffmpeg -threads 0 -probesize 100M -analyzeduration 100M -i "${filename}" -c:v libx265 -preset medium -x265-params "pass=2:crf=28" -c:a libmp3lame -q:a 9 "${filename%%.*}"_hevc.mkv
[19:14:02 CEST] <serialnuts> it breaks whenever I add an additional argument to the -x265-params part. For intance if I leave it at crf=28 (and skip pass=2) without quotes it works
[19:16:53 CEST] <serialnuts> pwd
[19:17:06 CEST] <serialnuts> I think i solved it. Thanks anyway :]
[19:17:46 CEST] <serialnuts> I used the pass option as an argument to ffmpeg instead of passing it to x265 ass a parameter
[20:25:43 CEST] <emilsedgh> Hi. I have a list of images and I want to create a movie out of them. I can do it easily. The only thing is, I have timestamps for them. i want them to appear in specific times. Is there anyway I can do that?
[20:26:31 CEST] <emilsedgh> So basically I know i1 should appear at t1 and i2 should appear at t5 (so basically i1 should stand still from t1 to t4)
[20:26:34 CEST] <emilsedgh> Does that even make sense?
[20:26:46 CEST] <JEEB> &38
[20:27:31 CEST] <furq> emilsedgh: make a cfr file with ffmpeg and then remux it with mkvmerge and a timecode file
[20:27:34 CEST] <furq> https://manpages.debian.org/stretch/mkvtoolnix/mkvmerge.1.en.html#EXTERNAL_TIMECODE_FILES
[20:27:51 CEST] <emilsedgh> furq: thanks for the clue. I will now look into this.
[20:31:55 CEST] <emilsedgh> furq: crf of cfr? where can i find a bit of more documentation about it?
[20:32:03 CEST] <furq> cfr as in constant framerate
[20:32:44 CEST] <emilsedgh> Thanks furq
[20:34:18 CEST] <furq> timelineeditor from l-smash will also work if you want an mp4
[20:34:33 CEST] <furq> apparently it supports mkvmerge timecode formats 1 and 2
[23:09:52 CEST] <hdqn> hello
[23:10:30 CEST] <hdqn> running `ffmpeg -f x11grab -an -i :0.0 -f rawvideo - | ffplay -f rawvideo -i -`
[23:11:26 CEST] <hdqn> I get this: https://paste.xinu.at/P43B/
[23:11:46 CEST] <hdqn> trying to capture my x11 desktop and live preview
[23:12:42 CEST] <rasten33> using a compositor?
[23:12:45 CEST] <hdqn> yes
[23:12:50 CEST] <hdqn> compton
[23:13:03 CEST] <rasten33> i get probs with compton and x11grab
[23:13:23 CEST] <hdqn> is there a different way? I'm just testing this out
[23:13:23 CEST] <rasten33> might need to use a different render backend for compton
[23:13:35 CEST] <rasten33> i have gkx atm
[23:13:39 CEST] <rasten33> glx
[23:14:22 CEST] <rasten33> btw i have a small project for anyone who is interested in shaders and compton
[23:14:47 CEST] <rasten33> transparency-to-root window with keycolor alpha transparency
[23:15:03 CEST] <rasten33> would donate beermoney
[23:15:25 CEST] <rasten33> i have the keycolor shader almost working
[23:15:32 CEST] <hdqn> oh you mean the compton backend
[23:15:38 CEST] <rasten33> yeah
[23:15:46 CEST] <hdqn> my backend is glx
[23:15:49 CEST] <kepstin> hdqn: when reading raw video, you'll have to set the frame size, pixel format, and framerate
[23:16:04 CEST] <hdqn> kepstin: would -re do?
[23:16:05 CEST] <kepstin> hdqn: maybe you should put the video into a container when piping it rather than using rawvideo
[23:16:20 CEST] <hdqn> how?
[23:16:29 CEST] <kepstin> hdqn: by using -f (something other than rawvideo)
[23:17:01 CEST] <kepstin> e.g. -f matroska or -f nut would work here, you'll likely also have to specify the video codec
[23:17:11 CEST] <kepstin> (both containers should support uncompressed video if you like)
[23:17:18 CEST] <hdqn> where can I find the possible formats?
[23:18:09 CEST] <hdqn> no go with matroska: https://paste.xinu.at/tiA/
[23:18:09 CEST] <kepstin> hdqn: for now just run `ffmpeg -f x11grab -i :0.0 -c:v rawvideo -f nut | ffplay -i -`
[23:18:57 CEST] <kepstin> that was just an issue because you didn't set the video codec, so it defaulted to x264 with high delay
[23:19:06 CEST] <hdqn> kepstin: forgot to output to stdout with - :)
[23:19:12 CEST] <hdqn> you did I mean
[23:19:18 CEST] <hdqn> alright, I have some previe
[23:19:21 CEST] <hdqn> s/$/w
[23:21:25 CEST] <hdqn> kepstin: thanks, that should get me started
[23:24:29 CEST] <rasten33> it works with compton?
[23:27:01 CEST] <kepstin> x11grab should work fine with compostors running on x11
[23:27:17 CEST] <kepstin> (it notably won't work on wayland stuff)
[23:27:50 CEST] <Hello71> well it will if your application is X
[23:28:48 CEST] <kepstin> hmm, I haven't actually seen that work, I get black even when capturing areas with X11 windows like firefox in my testing.
[00:00:00 CEST] --- Sat Jul 28 2018


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