[Ffmpeg-devel-irc] ffmpeg.log.20141127

[burek]

[00:02] <quixotic> i'll try that. thanks everybody for the help. you're great
[00:02] <llogan> anyway, if you just do "ffmpeg -i input -f md5 -" for each input you'll see that the hash is the same
[00:03] <llogan> each input being your new ogg files
[00:03] <quixotic> i see, i'll use this info in my new automation process. thanks
[00:03] <llogan> and you could probably specify the desired stream with -map if you want to just check a particular stream
[00:06] <llogan> quixotic: and make check that flac isn't the default encoder. i think it used to be default for ogg even with libvorbis supported. (next time provide the complete console output)
[00:06] <llogan> *make sure
[00:17] <bakers> quixotic: Did you solve your problem? I'm curious now
[00:40] <quixotic> bakers: i'll work around the issue by comparing the ffmpeg hashes to see if the file is actually the same. haven't found out how to specify the serial number
[01:43] <samthewildone> How do I use your application to compress a 1GB video to 500mb ?
[01:46] <MDTech-us_MAN> samthewildone: http://superuser.com/questions/4244/how-do-i-reduce-the-size-of-a-huge-mp4-video/4252#4252
[01:51] <llogan> samthewildone: https://trac.ffmpeg.org/wiki/Encode/H.264#twopass
[02:56] <Snaggle> I have a movie whose source is 133 frames, but which apparently got exported as 60 fps BUT instead of staying 133 frames played over 2 seconds, it became 8025 frames played over 133 seconds.  I do not have access to the source.  Is it possible to use ffmpeg to keep every 133rd frame ?
[03:02] <Snaggle> ahhh.  framestep filter... now to learn how to use it.
[09:54] <indieross> so i'm trying to compile ffmpeg on an f21 machine with an nvidia gpu and i'm having trouble with --enable-opencl
[09:54] <indieross> i'm getting a not found error, i have files in /usr/include/CL and /usr/include/opencl-utils
[09:55] <indieross> am i missing any deps or something? i;m pretty sure i have every i need installed
[09:55] <indieross> everything i*
[09:55] <sacarasc> What does the configure log say?
[09:56] <indieross> error: OpenCL/cl.h: No such file or directory
[09:57] <indieross> should i link one of the cl.h's in the dirs i previously mentioned to that dir?
[09:58] <sacarasc> So it's looking in /usr/include/OpenCL/, not in either of the places you have the files.
[09:59] <indieross> i got that
[09:59] <sacarasc> I can' help well wih a broken keboard, sorr. :D
[10:00] <Hfuy> Hello.
[10:00] <Hfuy> I'm in the process of converting an AVI to various quicktime-wrapped output formats.
[10:01] <Hfuy> In each case, black becomes grey; it looks very much like a luma range encoding glitch.
[10:01] <Hfuy> Are there any commandline switches that control this behaviour?
[10:03] <sacarasc> indieross: I believe it is possible to set where configure looks for things.
[10:04] <indieross> yeah, i think ill try changing it to /usr/include/opencl-utilc/CL/
[10:05] <Akagi201> Could ffmpeg modify the timecode of a flv stream?
[10:07] <Hfuy> I've just tried -color_range but it seems to have no effect on anything.
[10:10] <indieross> yuss, found the missing dep
[10:11] <indieross> lets see how this nvenc works out
[10:14] <K4T> how I can send ONE stream with FFMPEG to multiple udp multicast addresses?
[10:15] <K4T> http://pastebin.com/dKjV8zQS here is my command line
[10:16] <K4T> -f mpegts -flush_packets 0 "udp://239.239.4.100:1234?pkt_size=1316"
[10:16] <K4T> I would like to use something like this: -f mpegts -flush_packets 0 "udp://239.239.4.100:1234?pkt_size=1316, udp://239.239.4.101:1234?pkt_size=1316, udp://239.239.4.102:1234?pkt_size=1316"
[10:16] <K4T> is it possible?
[10:18] <viric> hi!
[10:19] <viric> I'm having troubles again...
[10:19] <sfan5> K4T: https://trac.ffmpeg.org/wiki/Creating%20multiple%20outputs#Duplicateoutputs
[10:20] <viric> I have a mts as input, and an image2 with loop, with overlay. ffmpeg does not end... starts dropping
[10:20] <viric> at the end of the mts, all frames go to "drop", and never ends. '-shortest' does not help.
[10:20] <viric> How can I make it finish once the mts finishes?
[10:20] <viric> (I'm just putting an image cover to the first 4 seconds of the mts)
[10:25] <K4T> sfan5, thx
[10:31] <viric> shortest=1 in overlay does not help ...
[10:31] <viric> weird
[10:33] <viric> ah, updating ffmpeg fixed it.
[10:33] <viric> \o/
[10:44] <bro45> hey
[10:44] <bro45> I need an help compiling ffmpeg
[10:44] <bro45> I have configured with --enable-shared
[10:45] <bro45> now when I make it says: /usr/bin/ld: libavutil/display.o: relocation R_X86_64_PC32 against undefined symbol `hypot@@GLIBC_2.2.5' can not be used when making a shared object; recompile with -fPIC
[10:45] <bro45> what can I do?
[10:46] <c_14> add -fPIC to your CFLAGS
[10:46] <bro45> how?
[10:48] <c_14> either with --extra-cflags="-fPIC" in your configure line or with export CFLAGS="-fPIC"
[10:48] <c_14> making sure to keep whatever's already in your cflags
[11:05] <bro45> usr/bin/ld: /usr/local/lib/libavformat.a(rmsipr.o): relocation R_X86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fPIC
[11:06] <bro45> anyone knows what is this problem when I compile vlc?
[11:10] <KeyboardNotFound> Hi
[11:11] <Bugson> guys where can I found quality scale for codecs? some man page or so?
[11:13] <davidw> Hi, I'm using the Ubuntu PPA, and am trying to stream to UDP: ffmpeg -f x11grab -s 1600x900 -r 50 -vcodec mpeg2video  -f mpegts udp://10.0.0.55:9002 - as per an example I found on the web.
[11:13] <davidw> However, I get: Output #0, mpegts, to 'udp://10.0.0.55:9002': Output file #0 does not contain any stream
[11:15] <c_14> add -map 0 before -f mpegts
[11:16] <Hfuy> Are any questions ever actually answered in here? I keep seeing people ask, but very few responses.
[11:16] <c_14> depends on the time/question
[11:17] <davidw> c_14, it gives me: Invalid input file index: 0.
[11:18] <davidw> c_14, fair enough: http://pastebin.com/eTDE3zYs
[11:19] <davidw> I'm looking at this web page for my examples, BTW: http://www.waitwut.info/blog/2013/06/09/desktop-streaming-with-ffmpeg-for-lower-latency/
[11:23] <davidw> More googling reveals commentary about an audio stream.  Don't have/want that.... could it be a problem?
[11:47] <davidw> do I have to start the client at the same time I start the 'server' ?
[12:49] <c_14> davidw: you don't have a -i input option
[12:49] <c_14> https://trac.ffmpeg.org/wiki/Capture/Desktop
[13:02] <DanielSa> hi
[13:16] <davidw> damn, that's still way laggy
[13:20] <davidw> how does webrtc manage to be so fast -(
[14:19] <davidw> Ok, I wrote it up here: http://superuser.com/questions/845699/get-webrtc-like-latency-with-ffmpeg - any ideas are welcome
[14:26] <samfisher> hi, i have ffserver running, ffmpeg doing ffmpeg -f video4linux2 -i /dev/video0 http://localhost:8090/webcam1.ffm
[14:26] <samfisher> but I don't know how to access video feed
[14:27] <samfisher> the remote machine connects with mplayer and sais No stream found to handle url http://192.168.255.103:8090/webcam1.ffm
[14:29] <pcherry> Hi, I have audio/video sync problem (MJPEG -> H264)
[14:29] <pcherry> ffmpeg -i mjpeg.mov -c:v libx264 -preset fast -crf 13 -pix_fmt yuvj420p -c:a libfdk_aac -b:a 192k output.mp4
[14:30] <pcherry> audio is ahead of video, there is about 0.2sec cut
[14:31] <pcherry> if I encode just audio (MJPEG -> AAC) it is fine
[15:15] <pcherry> Can anybody help me with a/v sync problems?
[15:19] <kevincheri> guys, new here and I need help converting rtsp to rtmp and stream via web
[15:20] <kevincheri> ffmpeg  -i "rtsp://url/" -vcodec copy -f flv -r 25 -s 1920x1080 -an  "rtmp://127.0.0.1:1935/live/livestream11"
[15:20] <kevincheri> I am using that in the web script
[15:20] <kevincheri> the error is Press [q] to stop encoding
[15:20] <kevincheri> [flv @ 0x15c2560]st:0 error, non monotone timestamps 1 >= 1
[15:20] <kevincheri> av_interleaved_write_frame(): Operation not permitted
[15:20] <kevincheri> can somebody help please?
[17:44] <davidw> is there a way to make ffserver simply reroute to an ffmpeg that is outputting rtp already? I want to reduce latency
[18:47] <smo__> hi ! i m building my ffmpeg now but it won t build ffplay ! (i added the --enable-ffplay)
[18:47] <smo__> an idear?
[18:51] <BtbN> You need sdl.
[19:20] <Borys> Hi there :)
[19:21] <Borys> It's possible to stream line-in input to icecast server? I use now darkice to do it, but i looking for method to decrease delay
[19:22] <Borys> So i thought I can try encode audio input via ffmpeg and stream it icecast on my vps
[19:22] <c_14> https://trac.ffmpeg.org/wiki/Capture/ALSA
[19:22] <c_14> https://ffmpeg.org/ffmpeg-protocols.html#Icecast
[19:26] <Borys> I already reading it, but I;m not sure about syntax, ffmpeg -f alsa -i hw:0,2 icecast://[username[:password]@]server:port/mountpoint will works?
[19:31] <c_14> should
[19:41] <DanielSa> c_14: very nice tip about ALSA
[19:45] <Popara> hello i have an avi movie that i convert it to mp4 using -codec copy -f mp4 test.mp4
[19:45] <Popara> the new movie has dropped frames and its a bit laggy and id ont understand why,i will post the command output to pastebin though i didnt see something strange there
[19:47] <Popara> http://pastebin.com/QmdnxHLR
[19:48] <kepstin-laptop> well, that 'pts has no value' message looks strange, and seems like it would cause stuff like dropped frames or laggy playback
[19:48] Action: kepstin-laptop has no idea why that would happen or how to fix it
[19:48] <Popara> the whole movie is laggy though
[19:57] <jack_thompson> do i see that right that ffserver only supports flv?
[19:58] <jack_thompson> is webm even suitable for expanding live streams? because i have no problem when i stream it from a file with ffserver..
[19:58] <jack_thompson> but when i stream something that is live encoded it doesn't work...
[19:59] <jack_thompson> the only thing that always works is flv
[20:04] <azk> You can stream with webm
[20:04] <azk> Oh sorry, I misunderstood
[20:05] <jack_thompson> no... webm is complete crap... it is too slow... and even when i use a server that takes way too much electricity (so that webm encodes in realtime)... the encoded stream still stutters
[20:05] <jack_thompson> the only case where i have seen webm working was when it was streamed directly from a file... without any touching..
[20:06] <azk> Well, I have it working fine on my end
[20:06] <jack_thompson> can you pm me the
[20:06] <jack_thompson> <stream> part of your config?
[20:06] <azk> I wrote it up some time ago
[20:06] <azk> sec
[22:07] <smo__> hello, i try to open some rtsp links served by my adsl box exemple rtsp://mafreebox.freebox.fr/....... when opening it i have tcp error can t resolve hostname mafreebox.freebox.fr
[22:07] <smo__> what do i miss in my ./configure build options to fix this ?
[22:08] <smo__> (same link works well in vlc)
[22:09] <jack_thompson> dude told me i'd had to adjust preroll and leys
[22:09] <jack_thompson> wrong channel
[22:11] <c_14> smo__: try installing nscd and see if that works
[22:12] <c_14> As in, see if it works once it's installed.
[22:12] <smo__> ok i try
[22:13] <smo__> yup it works
[22:13] <smo__> hummm soo it s os relevant ?
[22:15] <c_14> I don't know the details, I just know that that might help...
[22:15] <smo__> ok thanks but strange :p
[23:34] <Demon_Fox> The site really cleaned up
[23:35] <Demon_Fox> Is the h.264 decoder closed source?
[23:35] <c_14> No?
[23:36] <Demon_Fox> I asked because
[23:36] <Demon_Fox> I was unsure
[23:57] <Jack64> hey guys, does anyone have any experience decrypting hls ts files?
[00:00] --- Fri Nov 28 2014