[Ffmpeg-devel-irc] ffmpeg.log.20150907

[burek]

[00:37:52 CEST] <spectromas> does ffmpeg have a way to split a file in to certain size chunks rather than by time?
[01:02:48 CEST] <durandal_1707> you can trim by number of samples...
[01:03:51 CEST] <durandal_1707> but split with copy like you proposed is not implemented
[01:04:52 CEST] <spectromas> ok thanks durandal_1707, I am trying to get around fat32's file size limitation a bit more accurately but it's not too important
[01:08:24 CEST] <durandal_1707> i guess you could write script, but i doubt how gaps would be handled
[09:59:20 CEST] <Trigraph> on windows 10 x64 when i run ffmpeg.exe i get "Cannot run because openCL is missing" :\
[10:30:44 CEST] <durandal_1707> Trigraph: install opencl
[10:35:45 CEST] <Trigraph> durandal_1707: i have intel hd graphics where can i find opencl for it ?
[10:36:33 CEST] <Trigraph> "OpenCL" Driver for Intel® Iris" and Intel® HD Graphics on Windows* OS (64-bit and 32-bit)" says i do not meet the minimum requirements for installation :\
[10:40:13 CEST] <Trigraph> "OpenCL:	None" looks like my card Arrandale does not have opencl supported
[10:43:13 CEST] <Trigraph> recommendations for ffmpeg without opencl support ?
[10:44:58 CEST] <BtbN> opencl is entirely optional.
[10:50:41 CEST] <saste> ubitux, will you attend VDD?
[10:51:04 CEST] <ubitux> yeah
[10:51:08 CEST] <ubitux> (wrong chan?)
[10:51:13 CEST] <saste> ubitux, great :-)
[10:51:30 CEST] <saste> ah yeah (wrong chan)
[10:56:34 CEST] <bencc1> how can I stop ffmpeg started with python subprocess?
[10:56:41 CEST] <bencc1> proc.terminate() doesn't stop it
[10:59:28 CEST] <Trigraph> btbn do i need to recompile it myself ?
[10:59:40 CEST] <Trigraph> sans opencl support ?
[10:59:50 CEST] <Trigraph> the latest builds seem to *require* opencl
[11:00:07 CEST] <JEEB> depending on the encoder's buffering and the speed it will process that buffer it can take a while, but SIGINT should do the job bencc1
[11:00:22 CEST] <JEEB> so you give it SIGINT and then wait until the process dies
[11:00:38 CEST] <BtbN> hm, I'm if it requires OpenCL, that'd be kinda bad. It should be dynamicaly loaded at runtime, but i'm not sure about that.
[11:01:08 CEST] <bencc1> JEEB: how do I give it SIGNIT?
[11:01:16 CEST] <bencc1> JEEB: I'm doing screen capture
[11:04:06 CEST] <JEEB> you're seemingly using python, so that shouldn't be too hard to find out how to send out a signal to a process :)
[11:04:55 CEST] <bencc1> ok. thanks
[11:52:43 CEST] <satiender> Hello developers
[11:52:48 CEST] <satiender> !!
[11:53:41 CEST] <satiender> I want discuss something with you
[11:54:53 CEST] <satiender> Can we record only encoded video and audio in different - different files
[11:55:19 CEST] <satiender> I mean with muxing
[11:55:29 CEST] <satiender> without container
[11:55:42 CEST] <satiender> only just encoded video and audio
[11:55:49 CEST] <satiender> please help
[12:21:52 CEST] <agent0> Hello everybody!
[12:22:24 CEST] <rainer> hey there
[12:23:16 CEST] <agent0> Is it possible, that ffmpeg is working strange?
[12:24:27 CEST] <agent0> I mean, when I am trying to record audio with command ffmpeg -f alsa -ac 2 -i hw:0 test.wav then it is with two channels, but actual audio is on the left channel.
[12:25:28 CEST] <agent0> But if I use -ac 1 instead, then I got error cannot set channel count to 1 (Invalid argument) hw:0: Input/output error
[12:25:51 CEST] <agent0> I cannot understand, is my mic mono or stereo?
[12:28:10 CEST] <agent0> Of cource I can use -ac 2 and then just cut right channel from output file and made left channel as common. But is there a normal solution to record audio in one channel at a blow?
[12:32:31 CEST] <agent0> Is anybody alive here?
[12:33:40 CEST] <rainer> i believe it might take a while (but ive never been here before)
[12:34:08 CEST] <rainer> do you know whether your mic is stereo/mono?
[12:35:28 CEST] <agent0> rainer, I suggest it is mono because I have only one hole in the laptop's body...
[12:35:45 CEST] <martijnb> doesn't work that way
[12:36:11 CEST] <martijnb> stereo speakers only use one output too right?
[12:36:40 CEST] <agent0> martijnb, emmm... what do you mean
[12:37:22 CEST] <martijnb> meaning if you plug in stereo speakers, you use one plug, so clearly more than one audio channel ;)
[12:38:00 CEST] <agent0> martijnb, ah, thats right =)
[12:41:04 CEST] <agent0> I run alsamixer, press f6 to choose device, choosed HDA Intel PCH, pressed f4 to display capture devices and there are 6 colomns there:
[12:52:07 CEST] <agent0> Mic, Mic Boost, Digital, Internal Mic, Internal Mic Boost, Inverter Internal Mic
[12:56:26 CEST] <agent0> As I understand, the only actually recording mic is Internal Mic. Because Mic is on 0 level
[13:12:31 CEST] <agent0> I was experimenting now... Cool, Inverted Internal Mic was for right channel and Internal Mic is for left channel. Activating them both gives me stereo mic input.
[13:13:34 CEST] <agent0> But can anybody explain, what is Digital colomn there? Why it is in input devises? It is impossible to place CAPTURE flag to it.
[13:20:36 CEST] <DHE> it's a property of your sound card. Digital might represent an on-card input designed for CD-ROM drives to pipe audio for music playback, for example
[13:22:01 CEST] <BtbN> The option to set the channels of the alsa demuxer is -channels. No idea if -ac maps to that.
[13:23:20 CEST] <agent0> DHE, BtbN thanks
[13:24:11 CEST] <agent0> DHE, so, Digital is for external audio cards to input from cd?
[13:24:42 CEST] <DHE> maybe. A few older discrete PCI cards have that. it could be something else.
[13:24:50 CEST] <DHE> in the end, Digital is the name the sound card driver has given it
[13:25:08 CEST] Action: DHE still uses one of those PCI cards
[13:26:34 CEST] <agent0> DHE, I just experimented, and changing value of Digital did not do any effect, while I was recording. But for some reason it is in capture devices.
[16:45:50 CEST] <salviadud> I came here yesterday like the dumbest dude, asking to stretch a freaking video
[16:46:02 CEST] <salviadud> I forgot to add -aspect 16:9
[16:46:09 CEST] <salviadud> That fixed everything
[17:52:47 CEST] <sagax> hi all!
[19:58:16 CEST] <salviadud> I want to thank the whole ffmpeg team for supporting this project to its fullest.
[19:58:26 CEST] <salviadud> I think its the most awesome tool for video out there.
[19:58:34 CEST] <salviadud> Warner Bros is probably using it right now
[19:58:38 CEST] <salviadud> that's how badass it is.
[19:58:54 CEST] <salviadud> I read up on the documentation, and boy was I rusty.
[20:09:02 CEST] <DHE> it's entirely possible they are...
[20:09:43 CEST] <DHE> I've had the chance to play with hardware H264 transcoders and ffmpeg/libx264. The hardware may be more reliable, but ffmpeg rocks in every other way.
[20:10:56 CEST] <salviadud> And that hardware you speak of, what type of dedicated machine is it?
[20:12:25 CEST] <salviadud> Is it an embedded system?
[21:32:55 CEST] <DHE> and he's gone..
[00:00:00 CEST] --- Tue Sep  8 2015