[00:06:03 CEST] <cousin_luigi> Greetings. [00:07:11 CEST] <Prelude2004c> hello [00:07:16 CEST] <Prelude2004c> anyone around to help ? [00:08:39 CEST] <cousin_luigi> Can libdca and librtmp be safely disabled? Are the internal encoders/decoders at least on par? [00:11:09 CEST] <furq> libdcadec is the internal implementation now [00:11:31 CEST] <furq> you can no longer link with it as of a few weeks ago [00:12:18 CEST] <furq> i've used the internal librtmp a bit and it seems fine but i can't really say with any authority [00:12:22 CEST] <furq> s/lib// [00:19:53 CEST] <Prelude2004c> hey furq.. you helped me quite a bit last time.. have an odd problem ( audio seems fine now ) [00:19:58 CEST] <Prelude2004c> http://pastebin.com/ustVEMaa [00:37:29 CEST] <anadon> I'm getting garbage frames from the linked code and I'm not sure what could be going wrong: http://pastebin.com/3MGivRdv [07:36:07 CEST] <bencc> is it possible to format ffmpeg errors so I'll know they comes from fffmpeg? [09:34:29 CEST] <pa> Hi [09:34:48 CEST] <pa> does anybody here have a dvb-s2 PC card? [10:09:09 CEST] <Franciman> Hi all [10:09:21 CEST] <Franciman> How can I generate scenechanges for a video? [10:09:44 CEST] <Franciman> I mean, finding scene changes* [10:11:15 CEST] <furq> -vf select=gt(scene\,.4) [10:11:41 CEST] <furq> or -vf select=gt(scene\,.4),showinfo if you want text output [10:24:06 CEST] <Betablocker>  [10:28:18 CEST] <Franciman> sorry, here I am. furq I'm a noob with ffmpeg, should I write ffmpeg "-vf ...." ? [10:34:16 CEST] <Franciman> ok it was like that :P [10:37:58 CEST] <Betablocker> trying commands with ffmpeg is fun, it is good to play around when you are new [10:38:02 CEST] <Betablocker> hammer on ! [10:38:23 CEST] <Franciman> ffmpeg -vf "select=gt(scene\,.4),showinfo" -i vid.mp4 [10:38:29 CEST] <Franciman> I'm trying like that, but I get this error: [10:38:37 CEST] <Franciman> Option vf (set video filters) cannot be applied to input file vid.mp4 -- you are trying to apply an input option to an output file or vice versa. Move this option before the file it belongs to. [10:38:37 CEST] <Franciman> Error parsing options for input file vid.mp4. [10:38:37 CEST] <Franciman> Error opening input files: Invalid argument [10:41:16 CEST] <Franciman> ok found out this too. But what should be the output format? [10:48:07 CEST] <Franciman> I'd like to have their timestamps [11:49:16 CEST] <pandb> i wrote a program based on the muxing.c example on ffmpeg.org, and when I try to open the file it generates with mplayer, i get no video, but this series of messages appears on my terminal: pastebin.com/WXvz4aCf [11:50:07 CEST] <pandb> write operations with av_write_frame and av_interleaved_write_frame appear successful [11:50:32 CEST] <pandb> and the resulting file's size is consistent with my expectations [11:53:00 CEST] <pandb> i'm hoping the problem indicated by mplayer's output is just one of a missing function or setting [11:55:26 CEST] <Mavrik> Are you writing the trailer and closing the muxer? [11:57:07 CEST] <pandb> no, just hitting ctrl-c [11:57:19 CEST] <pandb> that's worked fine for me before [11:57:20 CEST] <pandb> lol [11:57:35 CEST] <pandb> the video is being generated continuously [11:59:49 CEST] <pandb> im trying to broadcast to twitch.tv, but was hoping to get feedback on the process by saving to file [12:01:04 CEST] <pandb> when I try to broadcast to a url i get messages that say 'buffer underflow st=0 bufi=#### size=74897 [12:01:34 CEST] <pandb> and bufi keeps increasing until it reaches 74897, then those messages stop [12:01:52 CEST] <Mavrik> So. [12:01:56 CEST] <Mavrik> You wrote a program that writes MP4. [12:02:09 CEST] <Mavrik> And then you kill it before it has chance to wrap up the container and write the MOOV atom? :) [12:03:03 CEST] <pandb> i guess so [12:03:25 CEST] <qmr> I like to MOOV it MOOV it [16:07:50 CEST] <Phrk_> Hello when i try to open a sftp file i got this : libssh: Error opening sftp file: SFTP server: No such file [16:08:26 CEST] <Phrk_> i use this ffplay sftp://user:pass@ip:port/path.mkv [16:09:02 CEST] <Phrk_> if i mount with fuse it's working, but i want to be able to play video without mounting [16:19:26 CEST] <turbolego> sup [16:20:10 CEST] <turbolego> does anyone know why this command results in a mp4 video that has not been speed up? [16:20:13 CEST] <turbolego> ffmpeg -i E:\fraps\Movies\Linjeduell.mkv -vf "setpts=0.5*PTS" Linjeduell2.mp4 [16:30:47 CEST] <anadon> I'm getting garbage frames from the linked code and I'm not sure what could be going wrong: http://pastebin.com/3MGivRdv [16:50:31 CEST] <Macey> Hi All, need some help.... Trying to stream to Flash Media Server. Older version of FFMPEG as embedded in app. [16:50:34 CEST] <Macey> -c:a libvo_aacenc -ar 48000 -ab 48k -c:v libx264 -s 320x240 -b 200k -pix_fmt yuv420p -f flv [16:50:53 CEST] <Macey> -s 320x240 & -pix_fmt yuv420p are apparently invalid options [16:51:25 CEST] <furq> which version of ffmpeg [16:59:42 CEST] <Macey> furq AVcodec-56.dll 56.41.100.0 [17:00:35 CEST] <Macey> ffmpeg.avcodec 56.41.100 [17:00:35 CEST] <Macey> ffmpeg.avformat 56.36.100 [17:00:35 CEST] <Macey> ffmpeg.avfilter 5.16.101 [17:00:35 CEST] <Macey> ffmpeg.avutil 54.27.100 [17:00:35 CEST] <Macey> ffmpeg.swscale 3.1.101 [17:02:59 CEST] <furq> those options should definitely exist in ffmpeg 2.7 [17:03:27 CEST] <furq> maybe try -vf scale=320:240,format=pix_fmts=yuv420p [17:06:46 CEST] <Macey> thanks furq i'll give it a go [17:08:04 CEST] <furq> -b 200k should be -b:v 200k [17:08:13 CEST] <furq> maybe that's screwing up the option handling [17:12:54 CEST] <topia_> hello all [17:13:39 CEST] <topia_> how do i run ffmpeg in linux? [17:14:00 CEST] <topia_> i went to the download page, and was redirected to a ubuntu page, which just game be source code [17:14:10 CEST] <topia_> is there no pre compiled binaries available? [17:14:38 CEST] <Macey> furq, perfect thanks for your help [17:15:40 CEST] <kuroro> im planning to use ffmpeg in my android app and have looked at how other apps have integrated it. I see most using JNI and linking against libffmpeg.so, and a few that just calls out to a statically built ffmpeg executable. i'm currently leaning towards the latter approach as it simpler (no need to worry about JNI, familiar command line options). Would you guys suggest the same? [17:19:36 CEST] <furq> topia_: http://johnvansickle.com/ffmpeg/ [17:19:56 CEST] <furq> your distro should have packages for it, but older versions of ubuntu won't have it or will have a very old version [17:20:10 CEST] <topia_> tyvm furq [17:20:22 CEST] <c_14> kuroro: what are you trying to do (what does your app need ffmpeg for) [17:25:09 CEST] <topia_> furq i get the error "The program 'ffmpeg' is currently not installed. You can install it by typing:sudo apt install ffmpeg" [17:25:18 CEST] <topia_> when trying to call it from a terminal [17:25:37 CEST] <JEEB> if it's not in your PATH you will have to call it specifically in its location [17:25:44 CEST] <topia_> in windows i just need to have the binary in a dir, and then i can do ffmpeg whatever from command line [17:25:48 CEST] <furq> ./ffmpeg [17:26:00 CEST] <JEEB> that's because windows has "." in PATH :P [17:26:00 CEST] <topia_> i was in the same directory as ffmpeg in terminal jeeb [17:26:04 CEST] <topia_> oh [17:26:13 CEST] <topia_> will try ./ [17:26:20 CEST] <JEEB> most *nix systems don't have "." in PATH for various reasons [17:26:22 CEST] <furq> just install it to /usr/local [17:26:25 CEST] <furq> or er [17:26:27 CEST] <furq> /usr/local/bin rather [17:27:03 CEST] <furq> debian/ubuntu don't install anything in /usr/local, it's reserved for your manually installed programs [17:27:06 CEST] <JEEB> yes, that is one location that is often in the default PATH and not used by the system's own packaging [17:27:28 CEST] <JEEB> `echo $PATH` to see your current defined PATH :P [17:28:32 CEST] <kuroro> c_14: to join video clips [17:29:05 CEST] <kuroro> and maybe add subtitles [17:29:16 CEST] <c_14> probably use the commandline. If what you're trying to do works via commandline, that will probably be easier. Also (helps) get around various possible licensing issues. [17:31:43 CEST] <kuroro> i see. i guess there are certain tasks that necessitate linking against a shared lib, and thats probably why some apps decided to go the JNI route [17:32:36 CEST] <kuroro> tnx for the suggestion [18:10:54 CEST] <pa> i was looking at the ffmpeg webcam capture page: https://trac.ffmpeg.org/wiki/Capture/Webcam [18:11:06 CEST] <pa> more specifically at: ffmpeg -f v4l2 -framerate 25 -video_size 640x480 -i /dev/video0 output.mkv [18:11:18 CEST] <pa> but what if i want ffmpeg to transcode for me on the fly? [18:11:28 CEST] <pa> like not just capture but actually encode the live stream? [18:14:32 CEST] <c_14> it does that [18:14:34 CEST] <c_14> by default [18:14:38 CEST] <c_14> (unless you specify -c copy) [18:19:25 CEST] <Phrk_> anyhelp : ffplay sftp://user:pass@ip:port/path.mkv [ffmpeg] libssh: Error opening sftp file: SFTP server: No such file [18:20:28 CEST] <c_14> that file doesn't exist in that location on that server [18:21:58 CEST] <Phrk_> yes it exist [18:22:17 CEST] <Phrk_> if i use http or fuse via ssh it works [18:22:54 CEST] <Phrk_> if i browse sftp with firefox he show the file can download it but not play [18:24:05 CEST] <pa> c_14, but how do i specify the codec? [18:24:15 CEST] <c_14> pa: -c:v foobar [18:24:29 CEST] <pa> and if i dont, what happens? [18:24:33 CEST] <pa> like in that line [18:24:37 CEST] <c_14> it uses the default video codec for that container [18:24:41 CEST] <pa> ah okay [18:24:42 CEST] <pa> thanks! [18:24:50 CEST] <c_14> for mkv that is libx264 if your build comes with that otherwise mpeg4 [18:25:04 CEST] <pa> last thing: how i choose mpeg-ts container? [18:25:13 CEST] <c_14> change the extension to .ts [18:25:23 CEST] <c_14> or add -f mpegts [18:25:28 CEST] <pa> ah great [18:25:29 CEST] <pa> thanks [18:25:50 CEST] <c_14> Phrk_: maybe try :port//path.mkv ? [18:26:08 CEST] <c_14> Is the file /path.mkv or is it relative to the user's home directory? [18:29:44 CEST] <Phrk_> it's not on home, it's chroot sftp [18:29:59 CEST] <Phrk_> c_14, no don't work with // [18:30:37 CEST] <Asuran> hello, i got problems with following command: ffmpeg -i "... file ..." -c:v libvpx-vp9 -pass 2 -b:v 1000K -threads 8 -speed 1 -tile-columns 6 -frame-parallel 1 -auto-alt-ref 1 -lag-in-frames 25 -c:a libopus -b:a 64k -f webm out.webm [18:30:47 CEST] <Asuran> it results in slow transcoding [18:30:56 CEST] <Asuran> and blaming about invalid aspect ratio (h264) [18:31:13 CEST] <Asuran> and much overflow + trys and worst: only 1 cpu used [18:31:16 CEST] <c_14> Phrk_: hmm, no idea. is there any other warning/error in the ffmpeg output? [18:31:22 CEST] <Asuran> any suggestion? [18:32:36 CEST] <Phrk_> c_14, no, every player that use ffmpeg say the same error message [18:32:53 CEST] <Asuran> http://pastebin.com/wBy7bwqi [18:33:14 CEST] <Asuran> fflogger, http://pastebin.com/wBy7bwqi [18:34:36 CEST] <c_14> Asuran: that h264 message is from the decoder [18:34:51 CEST] <Asuran> yup [18:35:07 CEST] <Asuran> so what im supposed to do about it [18:36:19 CEST] <c_14> Besides getting a better source? [18:36:41 CEST] <c_14> Phrk_: no idea. Is it only with that files or with all files you try? [18:37:14 CEST] <Asuran> not possible i guess and whats the problem with it? why only 1 thread used? [18:37:45 CEST] <Phrk_> c_14, all files, on all directory [18:39:22 CEST] <c_14> Asuran: as to the speed libvpx is slow. 0.6x realtime isn't that unrealistic afaik. As to why it only uses one thread, no idea. libvpx can be finicky sometimes but it should work [18:39:58 CEST] <Asuran> ah realtime, but i dont care if its realtime [18:40:07 CEST] <Asuran> i dont want streaming [18:40:18 CEST] <Asuran> i just got these from: http://wiki.webmproject.org/ffmpeg/vp9-encoding-guide [18:40:32 CEST] <c_14> Asuran: that was just the speed thing ffmpeg has in its output [18:41:12 CEST] <pa> i see there's a NVENC encoder for ffmpeg? is it there out of the box? or is it a plugin i have to download? [18:41:40 CEST] <c_14> you need the header from nvidia and then you need to --enable-nvenc [18:41:52 CEST] <JEEB> and --enable-nonfree for now [18:41:54 CEST] <c_14> Phrk_: let me test on my system [18:42:08 CEST] <JEEB> there's a patch for the nonfree to be removed due to how the header was relicensed recently tho [18:42:09 CEST] <pa> ah so i have to rebuild [18:42:09 CEST] <pa> ok [18:42:10 CEST] <pa> thnxk [18:42:17 CEST] <pa> whats a fast encoder otherwise? [18:42:22 CEST] <c_14> x264 [18:42:22 CEST] <JEEB> libx264 [18:42:23 CEST] <pa> something not too crappy but really fast [18:42:28 CEST] <pa> ok thanks [18:42:33 CEST] <c_14> adjust crf and preset to your liking [18:42:52 CEST] <JEEB> people at work often try to tell me how they'd like to try out HW encoding [18:42:54 CEST] <Asuran> ok i changed the command to the first example (VOD)? what means VOD? video on demand? [18:43:07 CEST] <c_14> Asuran: probably [18:43:12 CEST] <JEEB> then I have to tell them that HW encoding is usually only useful in a very limited set of cases [18:43:14 CEST] <Asuran> thanks guys [18:43:19 CEST] <Asuran> i appriaciate youre help :) [18:43:40 CEST] <JEEB> at least HW encoding is no more as bad as it was back with the whole CUDA nonsense [18:43:49 CEST] <JEEB> expensive heaters for everyone! [18:47:02 CEST] <Asuran> only one thing bothers me now: how to see current frame progress and how much is leftß [18:47:03 CEST] <pa> can i put h264 into ts? [18:47:07 CEST] <furq> sure [18:47:08 CEST] <pa> i seem to get errors.. [18:48:33 CEST] <c_14> Phrk_: works just fine here. Might be something with your sftp server [18:55:59 CEST] <pa> if i choose -c:v h264, i always get: [18:56:11 CEST] <pa> no frame! [18:56:15 CEST] <pa> last message repeated N times [18:58:41 CEST] <Asuran> is -tile-columns codec related? [18:59:49 CEST] <furq> pa: that's a decoder error [19:00:15 CEST] <furq> Asuran: ffmpeg -h encoder=libvpx-vp9 [19:00:22 CEST] <furq> it's specific to libvpx afaik [19:02:09 CEST] <pa> furq, but if i don't specify the encoder, it works.. (like without -c:v h264) [19:05:15 CEST] <Asuran> intresting ffmpeg crashed [19:05:18 CEST] <Asuran> second time [19:05:24 CEST] <Asuran> seems to be the source fault [19:05:41 CEST] <Asuran> with crash i mean i didn't got any message [19:06:24 CEST] <pa> ah [19:06:26 CEST] <pa> i see [19:06:37 CEST] <pa> so -c:v is intended as input codec? [19:06:59 CEST] <Asuran> nope output [19:07:00 CEST] <c_14> pa: depends where you write it [19:07:16 CEST] <furq> pa: if you put it before -i [19:07:21 CEST] <furq> which you normally don't need to do [19:07:31 CEST] <pa> so after is output? [19:07:36 CEST] <furq> yes [19:07:43 CEST] <pa> ok i see the problem now :) [19:07:44 CEST] <pa> thanks [19:28:55 CEST] <izco> what should be the instruction to save file to your computer when i have an m3u8 link and a cookie that is required to download the file? [19:36:35 CEST] <klaxa> izco: https://ffmpeg.org/ffmpeg-protocols.html#HTTP-Cookies ? [19:36:37 CEST] <klaxa> does that help? [19:38:31 CEST] <izco> will try, cheers [20:44:36 CEST] <Mooj> greetings, you marvelously populated channel! i have come with a question about ffmpeg [20:45:35 CEST] <Mooj> so here's the deal: I'm using ffmpeg in a python program i'm writing to convert .ogg files to .wav [20:45:46 CEST] <Mooj> and then im doing stuff with the wav data [20:46:24 CEST] <Mooj> but for some reason, the wav conversion always has 1073741823 audio frames, regardless of the original file [20:46:52 CEST] <Mooj> which amounts to the beginning of that data being what i actually want, and then about 99.99% zeros [20:47:44 CEST] <Mooj> now I could conceivably write a function to chop off that excess useless data, but that seems very un-elegant [20:47:51 CEST] <Mooj> is there a better solution for this? [20:48:36 CEST] <JEEB> are you using the FFmpeg API or the ffmpeg cli application? [20:49:19 CEST] <Mooj> uh....i believe the latter, but im honestly not 100% sure [20:49:34 CEST] <JEEB> at least I have in general noticed that ffmpeg cli writes relatively correct WAV files (except with the encoder delay included, which usually isn't that many frames) :P [20:50:05 CEST] <Mooj> i mean i know theres an option for -aframes [20:50:21 CEST] <Mooj> but im not sure how to have it detect the correct number of audioframes to use there [20:50:30 CEST] <JEEB> yeah, but by default you should be getting the correct amount (plus encoder delay) [20:50:40 CEST] <JEEB> like with ffmpeg -i hurr.ogg durr.wav [20:51:55 CEST] <JEEB> so you're either using a bugged version or your compiler breaks things or if it happens with current HEAD then we have a booger [20:52:17 CEST] <Mooj> eh.....here's a little more detail about what im doing: http://pastebin.com/9KTQe8ZC [20:52:39 CEST] <Mooj> so im just piping the ogg through the converter [20:52:48 CEST] <Mooj> annnnd yeah.. [20:53:03 CEST] <JEEB> oh [20:53:24 CEST] <JEEB> not sure if you can get exact length from OGG [20:53:32 CEST] <JEEB> I mean, without decoding it first [20:53:39 CEST] <JEEB> (completely) [20:53:55 CEST] <Mooj> isnt that what ffmpeg does when it converts though? [20:54:03 CEST] <Mooj> i mean, i assumed [20:54:07 CEST] <JEEB> yes, but then it can't update the value [20:54:10 CEST] <JEEB> because the output is a pipe [20:54:21 CEST] <JEEB> if the value is stored in the WAVE header [20:54:33 CEST] <JEEB> try doing that with a file [20:54:52 CEST] <JEEB> and see if that gets you correct length. if not, then things might be broken in your wave parser as well [20:55:09 CEST] <Mooj> hm. okay hold on [20:55:36 CEST] <JEEB> if you were using the API you would get the PTS of the last PCM sample [20:55:49 CEST] <JEEB> or well, you would also have the PCM sample count of course [20:57:00 CEST] <Mooj> ahhhh i have no idea what im doing xD [20:57:57 CEST] <Mooj> sorry, this is my first time trying to write a program to do things with audio files [20:58:41 CEST] <Mooj> so..i guess i will try to just have ffmpeg spit out a wav and run with that [20:59:18 CEST] <JEEB> that way you would get the length correct, yes [20:59:39 CEST] <JEEB> because ffmpeg would first write the data and then at the end seek to the header and update the value accordingly [20:59:46 CEST] <JEEB> at least that's how I imagine that thing working [20:59:59 CEST] <Mooj> yeah fair enough [21:00:11 CEST] <JEEB> most things that handle WAV from stdin usually don't care about the length field [21:00:16 CEST] <JEEB> and just read until stdin dies out [21:00:52 CEST] <Mooj> it's a bit temporary of a fix since in the final version i will want to be able to handle streaming audio data [21:00:57 CEST] <Mooj> but it'll be a start [21:01:22 CEST] <Mooj> i assume reading until stdin dies out means just stopping once you hit 500 0s? [21:01:54 CEST] <JEEB> the reading side should notice that as soon as ffmpeg stops pushing stuff in there [21:02:09 CEST] <JEEB> I only imagine the python wrapper tries to do some fancy things [21:02:14 CEST] <JEEB> and makes up data [21:03:03 CEST] <Mooj> yeah...from what i can tell its just preallocating the memory, and then not chopping off the excess [21:10:18 CEST] <furq> http://vpaste.net/3A1sf [21:10:20 CEST] <furq> i'm bored apparently [21:10:46 CEST] <furq> but yeah the length is at 0x4C [21:11:16 CEST] <furq> er, 0x4A even [21:13:47 CEST] <Mooj> so...it can tell how long the audio should be? [21:14:06 CEST] <JEEB> no [21:14:19 CEST] <JEEB> that's the spot where ffmpeg would then seek back [21:14:21 CEST] <JEEB> if it was a file [21:14:29 CEST] <JEEB> it's not so there's a placeholder value there [21:14:34 CEST] <furq> ^ [21:14:34 CEST] <JEEB> capisce? [21:15:01 CEST] <Mooj> gotcha [21:53:20 CEST] <Mooj> yep, works like a charm when not in a pipe [21:53:36 CEST] <Mooj> thanks for the help, you guys! [23:36:05 CEST] <Prelude2004c> hey guys.. any suggestion.. .thi sis what is happening.. i have a channel being encoded.. and i set PVR to record a show... for some reason after i do the playback on the show... the segments are 6 seconds long.. basically the playback is -6 so it only plays for 6 sends from the end... odd.. its like end of file is at 0 and beginning i have no idea.. :(.. i dont even know how to explain it [23:36:18 CEST] <Prelude2004c> anyone have any vauge idea on what i am dealing with here ? [23:36:26 CEST] <Prelude2004c> i only play last 6 seconds of any recording [00:00:00 CEST] --- Mon Apr 25 2016