[Ffmpeg-devel-irc] ffmpeg.log.20120825

[burek]

[00:01] <JonB> can I use multiple -ss and -t on just one -i ?
[00:04] <lucas^> I tried that, it doesn't work
[00:06] <JonB> ok
[01:07] <_hc> ubitux: I got it working!  thanks for your help.  Here's the cmd line: /data/local/ffmpeg -i test.mp4 -t 10 -af aredact=aredact_unsort.txt -vf redact=redact_unsort.txt -acodec aac  -b:a 32k -strict experimental -vcodec libx264 -y output-test-redact.mp4
[01:07] <_hc> I need to --enable-avresample to get the resample filter
[01:23] <intracube> ubitux: if you're still here -  here's the example that triggers the bug: http://pastebin.com/QzikW2xn
[01:23] <intracube> (and a couple of alternatives that work as expected)
[01:38] <msmithng> was there a fundamental change in the way that video data is being output?
[01:39] <msmithng> eg. it used to be out via stderr now that doesn't appear to be the case
[01:42] <msmithng> or am I simply off my rocker?
[01:42] <JEEBsv> video  data has always been either a file or stdout
[01:42] <JEEBsv> stderr was always used for text output
[10:04] <JonB> http://pastebin.com/Lf74PdAr
[10:06] <JonB> how come the output video does not appear to contain more than just the first input?
[11:24] <Orbixx> I'm trying to resize an mkv-contained h264 video for a mobile device.
[11:24] <Orbixx> What would be the best way to proceed?
[11:25] <Orbixx> I want to maintain audio quality and anything else contained in the mkv.
[11:25] <JonB> copy the sound codec?
[11:26] <JonB> what else is contained in the mkv?
[11:30] <cbsrobot> JonB: use -map
[11:34] <JonB> cbsrobot: ok
[12:36] <Peace-> hi i used ffmpeg to create a screncast using libvpx and libvorbis
[12:36] <Peace-> but the video is 1/3 of audio track
[13:16] <Peace->  variable chhdr_crc set but not used
[14:54] <intracube> hi, just a quick question about submitting a bug
[14:54] <intracube> http://ffmpeg.org/bugreports.html "if you wish to query or report a bug, you must try with the latest development branch revision of FFmpeg to confirm the issue still exists."
[14:56] <intracube> is that a hard and fast rule?
[14:58] <intracube> isn't searching the bug tracker for recently submitted/fixed bugs not sufficient?
[14:58] <JEEB> only the master branch gets actively developed
[14:58] <JEEB> and the bug might or might not have been fixed in the meantime (accidentally or not)
[14:58] <JEEB> compiling the git HEAD shouldn't be too hard
[14:58] <JEEB> and you wouldn't even have to install it, just compile a static build I guess and test
[14:59] <intracube> but if I search the tracker for bugs submitted after my version of ffmpeg, I'd catch any resolved bug reports
[15:00] <JEEB> that is, if the issue at any point got to the trac
[15:00] <JEEB> not to mention that ffmpeg merges pretty much all the stuff from libav, so if it was fixed there it might've gotten fixed as well
[15:01] <JEEB> I heavily think that you would have already compiled and tested a static build of the current git HEAD ffmpeg in the meantime as you've talked to me :D
[15:02] <intracube> JEEB: I think that's optimistic
[15:02] <JEEB> anyways, if it's really hard for you to get that done you might report it and see what comes :P
[15:03] <JEEB> depending on how easily/hardly it can be reproduced you will either get told to test it with the master branch, or someone else will do it
[15:03] <intracube> if I have time I'll try to compile from git head
[15:04] <JEEB> for example, no-one has reported this but I still fixed it after finishing up an encoder for the format http://git.videolan.org/?p=ffmpeg.git;a=commit;h=01cb4c84f54a52725c9b4b4dd6c609c36cccc5d4
[15:04] <intracube> if I run into any problems I'll submit a report anyway
[15:07] <intracube> Will this get me the up to date source tree? git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg
[15:07] <JEEB> yup
[15:07] <JEEB> the last ffmpeg is not needed as git by default names the folder against the reponame
[15:08] <JEEB> which would be ffmpeg in this case
[15:08] <intracube> ok
[15:08] <JEEB> ffmpeg.git -> ffmpeg
[16:58] <vlad_starkov> Question: does anyone know how to install SoX with ffmpeg support on OSX Mountain Lion?
[22:46] <intracube> hi, I'm about to submit a bugreport/ticket
[22:47] <intracube> what are the 'Blocked By' and 'Blocking' fields for?
[22:47] <intracube> can they be left blank?
[22:47] <JEEB> yup
[22:48] <JEEB> they're in case you have bug X which needs to be fixed to have bug Y fixed
[22:48] <intracube> oh ok
[22:48] <JEEB> then X would be blocking Y, and Y would be blocked by X
[23:10] <intracube> JEEB: I did manage to get ffmpeg compiled
[23:11] <intracube> took a bit longer than 10-15mins ;)
[23:11] <intracube> the bug hasn't been fixed yet, so: https://ffmpeg.org/trac/ffmpeg/ticket/1682
[23:26] <JonB> hi
[23:27] <JonB> http://pastebin.com/wjaYyDtP
[23:28] <JonB> based on that, especially "The complete file name will be PREFIX-N.log" I found it perfectly safe to use the input filename as the -passlogfile prefix
[23:29] <JonB> but no, it was not safe, now my original source files are damaged
[00:00] --- Sun Aug 26 2012