[Ffmpeg-devel-irc] ffmpeg.log.20130831

burek burek021 at gmail.com
Sun Sep 1 02:05:01 CEST 2013


[12:19] <XAVeRY> hey there. I got a very weird mpg file that produces such output when passed to ffmpeg -i : http://codepad.org/1UvbxBAe .
[12:19] <XAVeRY> mplayer plays this file okay, so it is playable, but I'm looking for ways to fixup the header or whatever's wrong with this file. any clues?
[12:19] <XAVeRY> thanks in advance.
[12:26] <Mavrik> XAVeRY, hmm
[12:26] <Mavrik> you could try remuxing, but that looks like a badly broken stream
[12:26] <XAVeRY> Mavrik, I did - things seem a bit better now.
[12:26] <Mavrik> just do ffmpeg -i <file> -codec:copy outfile.ts
[12:27] <XAVeRY> remuxed it to mkv, we'll see how it goes.
[12:27] <XAVeRY> Mavrik, I'm most concerned about the errors from the h264 decoder. hopefully, it won't be that much trouble.
[12:28] <Mavrik> you could probably get rid of those with remuxing to a global-header container (e.g. mp4)
[12:28] <Mavrik> those aren't that critical as long as the PPS/SPS packets are at least partially there
[12:36] <compn> xavery, can you paste mplayer output?
[12:37] <XAVeRY> compn, just normal output when I'm playing?
[12:37] <compn> yes
[12:38] <compn> on that file
[12:38] <XAVeRY> compn, http://codepad.org/BMVV6BgK
[12:42] <compn> hmmmmmmmmm
[12:42] <compn> stumping me
[12:42] <compn> you compiled mplayer?
[12:42] <compn> against ffmpeg?
[12:42] <XAVeRY> compn, no, it's an Arch Linux package. but I can compile it if you want.
[12:42] <compn> it could be libav mplayer?
[12:43] <compn> you compiled ffmpeg or binary?
[12:43] <XAVeRY> compn, no, it was binary.
[12:43] <compn> hmmmmm
[12:44] <compn> well, id say try git, might be fixed
[12:45] <compn> otherwise im out of ideas and it maybe real bug
[12:45] <XAVeRY> compn, I doubt that. I'd really suspect the stream to be actually borked in a way.
[12:45] <XAVeRY> I recorded it on Windows, via a very shabby application that came with my tuner
[12:46] <compn> ok, well if it works in mplayer
[12:46] <compn> you can use mencoder or mplayer to convert it
[12:47] <compn> depending what codec you want
[12:48] <compn> or if you just want to try remuxing
[12:48] <compn> there is tsmuxer or mkvmerge might be able to fix it
[12:49] <XAVeRY> compn, thanks a lot for the advice. :) I'll see what I can do with those.
[12:49] <compn> ok, i might not be here later, but stick around and some one can help
[12:50] <compn> if you upload your file, we can test with git too...
[12:50] <XAVeRY> well, remuxing to mkv seems to have worked.
[12:50] <compn> great
[12:50] <XAVeRY> thanks a lot, Mavrik & compn.
[12:50] <compn> np
[13:53] <XAVeRY> I had some sync issues after muxing the streams together, but fixed it with mkvmerge.
[13:53] <XAVeRY> thanks again, compn & Mavrik.
[14:44] <Neil_> Hello people.  I'm trying to convert a video that is 1920x1080 but i get an error saying to increase MAX_FILTER_SIZE - where would I find this and what should I set it to?
[14:53] <Neil_> if anyone could tell me which file it's in?  I tried '/ffmpeg_sources/ffmpeg/configure' - where else to look?
[14:53] <Mavrik> uhm
[14:53] <Mavrik> can you give your full console output in a pastebin?
[14:57] <Neil_> here you go : http://pastebin.com/ydLgVpT1
[14:58] <Neil_> the command line I'm trying to use is:   ffmpeg -i "$1" -vcodec libx264 -vprofile high -preset slow -b:v 850k -maxrate 850k -bufsize 1000k -vf scale=1:720 -threads - -acodec copy "${1%%sm.*}.mp4"
[14:59] <Neil_> I just want the video to be 720 adn not 1920 as it's messing things up
[15:02] <Mavrik> Neil_, em, the bug.
[15:02] <Mavrik> "-vf scale=-1:720"
[15:02] <Mavrik> 1:720 is the part that freaks sws_scale out :)
[15:05] <Neil_> ok, so what did I do wrong?  I looked at a couple of website 'HOWTO's' and thought that was the right way to change resolution
[15:05] <Neil_> Arrrgh - I missed the minus sign out!
[15:06] <Mavrik> yep :)
[15:12] <Neil_> Mmm - so now I have  ffmpeg -i "$1" -vcodec libx264 -vprofile high -preset slow -b:v 850k -maxrate 850k -bufsize 1000k -vf scale=-1:720 -threads - -acodec copy "${1%%sm.*}.mp4" but I get this as an error:
[15:12] <Neil_> http://pastebin.com/zi7CQv7i
[15:12] <Neil_> just shoot me...
[15:12] <Mavrik> Neil_, um
[15:12] <Neil_> -threads - -a...  Not my day :-(
[15:12] <Mavrik> it says clearly
[15:13] <Mavrik> your threads parameter is wierd :P
[15:22] <Neil_> thank you!
[19:29] <vad> ffmpeg 2.0.1 seems to have a very weird behavior in that it keeps encoded frames in memory rather than writing them out until very late..
[19:30] <vad> The status output is then quite ridiculous: frame=15371 fps= 37 q=2.0 size=     440kB time=00:10:41.28 bitrate=   5.6kbits/s
[19:36] <klaxa> i have noticed that too
[19:36] <microchip_> vad: open a ticket, then
[19:44] <vad> I can't help but procrastinate :)
[19:45] <Mavrik> vad, which muxer?
[19:45] <vad> mkv container, using -c:v mpeg4
[19:46] <Mavrik> huh.
[19:46] <Mavrik> why.
[19:49] <vad> I have a gut feeling it may be caused by the input file o_O
[20:13] <burek> can anyone tell me what is this thing: http://pastebin.com/AFX8s7U9
[20:13] <burek> vlc also can't play it
[20:14] <durandal_1707> use mplayer with drivers
[20:15] <durandal_1707> actually that is DRM
[20:16] <durandal_1707> if you did not paid for it you can not watch it
[20:16] <burek> f it, i'll re-download a better copy anyway :)
[20:17] <burek> i don't know who pays for movies in these days :)
[20:17] <durandal_1707> it looks encryption is done in container(asf) and not in video bitstream
[20:17] <durandal_1707> it woult be nice if you could watch it if you have key
[20:18] <durandal_1707> but to have key, you need to pay....
[20:19] <burek> they can bite me :)
[20:19] <burek> btw, there is some info in metadata
[20:20] <klaxa> well it's 640x480 anyway
[20:21] <durandal_1707> some pr0n
[20:21] <klaxa> also wmv and wma? wut
[20:21] <klaxa> why would you want that stuff
[20:21] <durandal_1707> he is pirate
[20:21] <klaxa> especially then he should have higher standards by now
[20:24] <durandal_1707> i do not they are so dumb to store key in metadata
[20:24] <durandal_1707> s/they/think they/
[20:25] <burek> it was a torrent download, i just wanted to watch a movie that's all no biggie
[20:26] <durandal_1707> there is probably brute force to break drm but i not going to do it for free....
[20:26] <burek> i didn't even see it was 640x480
[20:26] <burek> no need to, there are free tools for that anyway :) http://stream-recorder.com/forum/four-ways-remove-drm-wmv-and-wma-t9592.html?s=0bdfba05ded25838caccadc7909bd569&
[20:26] <durandal_1707> burek: you waste bandwitch on fake torrents
[20:26] <burek> but i'll download hd copy
[20:26] <burek> wasn't watching carefuly at descr :D
[20:28] <vad> to err is human, but to really screw up requires a computer
[20:33] <burek> :)
[00:00] --- Sun Sep  1 2013


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