[Ffmpeg-devel-irc] ffmpeg.log.20120929

[burek]

[02:07] <nn> just cant seem to get this to work -- anyone care to take a look? ffmpeg invokation and output https://gist.github.com/3802684, conf/ffserver.conf: https://gist.github.com/3802687
[02:12] <ubitux> "[mjpeg @ 0x9fffcc0] Specified pix_fmt is not supported" looks like the problem
[02:12] <ubitux> maybe try to play with the pixel format option
[02:16] <nn> ubitux: Not sure what to do with it, honestly-- looks like everything is yuv420p from input to output
[02:18] <ubitux> can you try a more recent version first?
[02:19] <nn> Unfortunately this is the packaged version on archlinux
[02:19] <ubitux> it's easy to build ffmpeg on archlinux
[02:20] <ubitux> maybe try this if you don't want to build it yourself
[02:22] <nn> building, it'll take a while ;)
[02:22] <llogan> nn: there is also ffmpeg-git package in AUR if you're lazy
[02:23] <nn> hey that works
[02:23] <ubitux> llogan: archlinux will likely package 1.0 pretty soon anyway
[02:23] <ubitux> nn: what works? build or your command with the latest version?
[02:23] <nn> aur
[02:24] <nn> build is gonna take a good bit, 800mhz cpu
[02:24] <ubitux> just try the static build :p
[02:24] <ubitux> it's pointless to build it if it doesn't work anyway :)
[02:25] <ubitux> 800mhz... at least 1 hour of build :)
[02:30] <nn> Hmm apparently this netbook has a 1600mhz core and a 800mhz.. seems unlikely.. what's that intel crap called?
[02:31] <ubitux> a cpu? :)
[02:31] <nn> no, the fake double core nonsense in their mobile cpus
[02:31] <nn> ht i think
[02:32] <ubitux> an atom maybe
[02:32] <ubitux> with hyperthreading yeah
[02:36] <nn> ubitux: pretty much my situation is as simple but difficult to fix-- I've got v4l2 capture devices and alsa audio inputs. I run motion to record activity on cameras. I want to use ffserver to stream to multiple codecs on demand (mjpeg mpeg1/2 and mpeg4/h264)
[02:37] <nn> I think my best bet is to use the netcam feature in motion to grab from v4l2 and provide multipart mjpeg for motion and mpeg1/2 + mpeg4/h264 for android client
[02:44] <nn> ubitux: Can i send a signal or RPC message to ffserver to make it save from one of the encoders to a file? (for recording without using a (mostly) unnecessary extra encoder?
[02:45] <ubitux> i'm really not familiar with ffserver unfortunately
[02:46] <ubitux> i'm not sure i'll be of much help, and it seems not much ppl are available at this hour..
[02:46] <nn> Is there a time better to find someone?
[02:49] <ubitux> i can't tell; i'd say while waiting here for more answers, you might want to try to ask on ffmpeg-user mailing list
[02:49] <ubitux> about the pixel format issue you have, if it's still reproducible with a recent ffmpeg, my guess would be to play with the -pixel_format option, or the option from v4l2 input device
[02:50] <ubitux> can't help you more now :p
[02:52] <creep> hey
[02:56] <nn> ubitux: thank you
[02:56] <nn> creep: hi
[03:40] <nn> ubitux: problem is from the mjpeg streamer... hmmm
[03:40] <nn> betting its ffserver settings
[05:27] <nn> ubitux: Made some progress, whats this mean? DTS 1640556, next:2125964 st:0 invalid dropping PTS 1640556, next:2125964 invalid dropping st:0
[06:20] <melkor> when building ffmpeg is there a good config option to get a majority of popular codecs?
[08:55] <ubitux> nn: i guess that's a huge pts/dts jump? :p
[08:56] <ubitux> melkor: maybe --enable-lib{mp3lame,x264,vpx,theora,openjpeg} for the codecs
[13:19] <melkor> ubitux: thanks, I left out the openjpg
[14:42] <Aristide> Hi !
[14:43] <Aristide> I have a problem with ffmpeg : http://pastebin.com/EYw9hXJn this command (at the top) give this output (under « #### Résultat ###### » ) and freeze :/
[14:50] <Aristide> Hum ... Ok I found problem ><
[14:54] <Aristide> Ok no I don't find problem, if I change directory, its is a same problem :(
[15:14] <frogprince_mac> does anyone have experience installing ffmpeg-php
[15:19] <JEEB> frogprince, it doesn't really have anything to do with ffmpeg itself
[15:19] <frogprince_mac> well indirectly it does cause i have to rebuild ffmpeg apparently
[15:19] <frogprince_mac> for it to work
[15:23] <Aristide> Ok its work for me
[15:24] <Aristide> I have a other question
[15:24] <Aristide> Its possible to get output from ffmpeg while encoding ? (fort get time while encoding and other information)
[15:25] <JEEB> frogprince_mac, I think it needs some lolold ffmpeg
[15:35] <frogprince_mac> ye
[15:35] <frogprince_mac> it doesnt work
[15:35] <frogprince_mac> it never works
[15:35] <frogprince_mac> ;_;
[15:36] <JEEB> better just call ffmpeg command line from the php code I guess
[15:37] <frogprince_mac> ye that doesnt work either heh :(
[15:38] <frogprince_mac> exec isnt even returning anything
[15:38] <frogprince_mac> and im using the exact same command i tested in the terminal
[15:38] <frogprince_mac> with absolute paths and all
[15:39] <nn> Anyone grabbing from v4l2 and streaming it to ffserver?
[15:41] <JEEB> frogprince, then you should actually see why and how it doesn't work :P
[15:52] <Aristide> Its possible to get output from ffmpeg while encoding ? (fort get time while encoding and other information)
[15:52] <Aristide> In bash via pipe
[15:52] <Aristide> I see only informations ended by \n :(
[16:13] <frogprince_mac> oh my god i got it to work
[17:18] <AR_> hi
[17:19] <AR_> i have an rtmpdump command which successfully can download my rtmp stream
[17:19] <AR_> i want to use ffplay to play it instead
[17:19] <AR_> i posted some details here
[17:19] <AR_> http://stream-recorder.com/forum/rtmpdump-ffplay-t13885.html
[17:19] <AR_> currently my ffplay command does connect to the rtmp server, but i get no video stream
[17:22] <AR_> any ideas would be appreciated
[22:03] <tapout> Do all these windows apps that convert * -> mp4, typically use ffmpeg?  I want to convert anything->anything with ease... I"m assuming they're using ffmpeg
[22:03] <relaxed> tapout: yes
[22:15] <AR__> anyone know how to get multiple streams from the same rtmp server via one connection?
[23:00] <tapout> how do i list which codecs are available to ffmpeg -vcodec?
[23:00] <ubitux> ffmpeg -codecs
[23:02] <tapout> hrmm
[23:02] <tapout> i see libx264 listed
[23:02] <tapout> i'm using the statically compiled binary from latest
[23:03] <tapout> ffmpeg -cdoecs|findstr 264, lists: DEV.LS h264    H.264 / AVC / MPEG-4 ....  (encoders: libx264 libx264rgb )
[23:04] <tapout> ffmpeg -vcodec libx264 -i lecture1.mp4 test.avi
[23:04] <tapout> "Unknown Decoder libx264"
[23:05] <ubitux> any option before -i xxx is an input option
[23:05] <tapout> ohhhh
[23:05] <ubitux> (because you can force a decoder)
[23:05] <tapout> ubitux, thanks man...
[23:06] <tapout> do you happen to know why dice player, won't increase the playback on a mp4 but it will work on a mkv, avi, mov and even flv?
[23:06] <tapout> is it a flaw with *.mp4?
[23:06] <tapout> or just a flaw with his programming?
[23:06] <ubitux> i don't know what's dice
[23:06] <tapout> i've downloaded these lectures that iw ant to watch but they're so damn slow... the playback is at such a slow speed
[23:06] <tapout> dice player is on the asus transformer tablet, like 'vlc' kinda
[23:06] <ubitux> mplayer is able to speed up playback
[23:07] <tapout> on asus transformer on all even mp4?  hrmm checking
[23:10] <tapout> is there a way to pass the processing over to cuda/opencl?  i have a 6990 and this conversion is only going at 510kbit/s
[23:10] <tapout> maybe there is a flag for gpu rendering/processing, checking
[23:11] <ubitux> i'm afraid no gpu acceleration is possible
[23:11] <ubitux> maybe some library wrapper would allow some particular processing, but that's not possible atm
[23:11] <tapout> does 510~kb/s seem slow ?
[23:11] <tapout> or typical
[23:12] <ubitux> i don't know, depends on your hardware and encoding settings..
[00:00] --- Sun Sep 30 2012