[00:07] <yns_> Hi [00:08] <yns_> I would like to convert pjpeg [00:08] <yns_> cant find ut how tough [00:10] <yns_> any suggestions? [00:13] <yns_> cant find anything about pjpeg in the documanetation, is there another name for pjpeg maybe? [00:19] <Trashlord> hey. I'm trying to stitch together audio and a still image to create a video. I'm doing -pix_fmt yuv420p, but it says unknown format, why? [00:20] <Trashlord> actually, it says it can't find a suitable output format for that [00:55] <tonsofpcs> anyone have experience using ffmpeg to render XDCAM HD 50? [01:13] <yns_> annyobdy knows how to convert into pjepg with ffmpeg [02:15] <Anaphaxeton> hi! i have a TV set that supports playback with a usb stick. it limits you a lot about containers and what streams they should include [02:16] <Anaphaxeton> so basically i am trying to convert a dvd to a .mpg file that is a PS container with mpeg2 video and pcm audio [02:16] <Anaphaxeton> the problem is with the audio [02:17] <Anaphaxeton> ffmpeg -i Downton.Abbey.Season.2.Episode.5.mkv -c:a pcm_u16be -f vob -c:v copy Downton.Abbey.Season.2.Episode.5.mpg [02:17] <Anaphaxeton> one of my attempts to make it work... [02:17] <Anaphaxeton> packet too large, ignoring buffer limits to mux it [02:17] <dozm9> Does does anyone have any good resources/tutorials for taking arbitrary input videos and outputting to mp4 container for multiple devices? 1080,720,480,360 [02:18] <Anaphaxeton> ^ that one always appears with whatever pcm and with or without -f vob [05:16] <defaultro> hey folks, can ffmpeg transition from one video to another? I mean, the first video is about to end in 10 seconds, our next video starts to fade-in in that time frame [08:43] <Aziroshin> I am trying to encode a "preview" video. The perk would be that the encoding process finishes really fast. [08:43] <Aziroshin> However, I belive I am misunderstanding how this works, because, despite horrible quality settings and 2 fps (testwise), the encoding process doesn't really speed up much. [08:44] <Aziroshin> The CPU is also not really used too much by ffmpeg during that preview encode. [08:44] <Aziroshin> The line I am using goes like this: ffmpeg -y -i ../take1.video.mkv -r 2 -c:v libx264 -s 320x240 -crf 40 -preset superfast 1.mkv (testwise) [08:45] <Aziroshin> Here's the output: http://dpaste.com/1074101/ [08:47] <Mavrik> hmm [08:48] <Mavrik> Aziroshin, ok, whats the framerate of your input? [08:50] <Aziroshin> It's 30 [08:50] <Aziroshin> It's a yuv4mpeg encoded file in an mkv container (the input) [08:51] <Mavrik> yeah well [08:51] <Mavrik> as you can see theres alot of dropped frames [08:51] <Mavrik> since youre forcing it to 2 fps on output [08:51] <Aziroshin> Yeah [08:51] <Mavrik> and youre probably hitting your I/O limit [08:52] <Mavrik> since raw 720p video DOES need a huge amount of I/O bandwidth to read from disk [08:52] <Aziroshin> Hmm [08:52] <Mavrik> that also explans why your CPU is idling ;) [08:52] <Aziroshin> Interesting point, I should do a test sometime with small snippets on a ramdisk and see how it flies. [08:53] <Aziroshin> It's interesting that the fps spikes quite high in the beginning, and then flattens down quickly. [08:53] <Mavrik> Aziroshin, for 720p 30fps raw video to be read from HDD you need a 110MB/s sustained read [08:54] <Mavrik> that's without the writes needed to store results :) [08:54] <Aziroshin> To be read at realtime, that is? [08:55] <Mavrik> yeah [08:55] <Aziroshin> I see. o.o [08:55] <Aziroshin> That's like some more than 1/3 of a quite fast harddisk. [08:55] <Mavrik> um [08:55] <Mavrik> actually I havent seen 7200rpm harddisk that could do that ;) [08:55] <Mavrik> SSDs only [08:56] <Aziroshin> I think I've seen a magnetic one in a review somewhere, but it might have been a 15k one. [08:56] <wolf85kunst> hello [08:56] <Aziroshin> Hello. [08:56] <Mavrik> Aziroshin, most HDDs top out at 100MB/s on inner platters [08:57] <Mavrik> usually the curve is like 70-100MB/s [08:57] <Mavrik> quite annoying for video work :) [08:57] <Mavrik> Aziroshin, try storing output to another disk [08:58] <Aziroshin> Yeah,well, even if I had the money for more harddisks, that alone would probably not give the speed increase I had dreamed of. xD [08:58] <wolf85kunst> i wonder if ffmpeg is the good solution to use in a script... in fact i developp a script who get some videos info.. and i wonder if ffmpeg is not deprecated. i sound libav.. what is the best solution ? thanks a lot [08:58] <Aziroshin> It's not deprecated at all. [08:58] <Mavrik> Aziroshin, mhm& why do you have video in raw format? :) [08:59] <Mavrik> wolf85kunst, no, ffmpeg is not deprecated [08:59] <wolf85kunst> *** THIS PROGRAM IS DEPRECATED *** [08:59] <wolf85kunst> This program is only provided for compatibility and will be removed in a future release. Please use avconv instead. [08:59] <Aziroshin> It's just that the debian/ubuntu developers put in avconf instead of ffmpeg and renamed it ffmpeg instead, putting in their own avconf ffmpeg fork a fmpeg-deprecation message. [08:59] <Mavrik> wolf85kunst, yes, ffprobe JSON output is perfect for use in script [08:59] <Mavrik> wolf85kunst, thats misleading and obsolete [09:00] <Mavrik> Aziroshin, because the better option is to just use a little CPU when saving video and store it into one of the lightlt losless compressed formats like huffyuv [09:00] <Aziroshin> huffyuv, interesting. Ive heard of it. [09:01] <Aziroshin> I should probably do that. [09:01] <Mavrik> yeah, it uses simple lossless huffman compression [09:01] <Mavrik> which makes a huge difference when I/O is your bottleneck :) [09:02] <Aziroshin> I record gameplay footage with glc. It stores the video in yuv4mpeg in an internal .glc format. I need to pipe it out before I can do anything. Before, I used libx264 for that. I figured I could get some more quality during thet re-encoding processes further down the pipeline if I would not do that. [09:02] <Mavrik> mhm [09:03] <Mavrik> Aziroshin, I found out that using light compressing when grabbing video from gameplay is worth it [09:03] <Aziroshin> And good quality settings for libx264 takes ages [09:03] <Mavrik> since otherwise I always saturated disk [09:03] <Aziroshin> Well, glc does yuv4mpeg or bust. [09:03] <Mavrik> which is way worse than give part of a core over for compression [09:03] <wolf85kunst> Mavrik, thanks you mean it's better to use ffprob that's right ? [09:04] <Aziroshin> I need to pipe it out after the file is completely recorded. [09:04] <Aziroshin> I have stuffed around with direct piping, though. These things don't work out sound-wise so far. [09:04] <Mavrik> mhm [09:04] <Mavrik> I think I used some other game recording software [09:04] <Aziroshin> Which one? [09:06] <Mavrik> um [09:06] <Mavrik> playclaw I think [09:06] <Mavrik> only one that could do compression so I could grab 1920 [09:06] <Aziroshin> Oh, sometimes I forget that not everyone on these freenode channels is automatically living in the UNIX world [09:06] <Aziroshin> I use linux. XD [09:07] <Aziroshin> And, well, through glc I am used to files that get insanely large. [09:07] <Mavrik> mhm [09:07] <Mavrik> Aziroshin, I figured gaming == windows [09:07] <Aziroshin> I stopped doing Windows years ago. [09:08] <Mavrik> havent tried grabbing video for games form linux, usually performance was bad enough as it is [09:08] <Mavrik> anyway, sleep time [09:08] <Aziroshin> That yuv4mpeg extract I am working with is like 173 GB in size [09:08] <Aziroshin> Uh... see ya. XD [09:15] <wolf85kunst> is ffprobe is based on ffmpeg ? [09:20] <Iv0ry> Hey guys if mmpeg says: [mov,mp4,m4a,3gp,3g2,mj2 @ 03781960] moov atom not found Invalid data found when processing input that means the file is damaged right? :( [10:36] <ubitux> wolf85kunst: ffprobe is one of the tool of the FFmpeg project, just like ffmpeg, ffserver or ffplay [10:48] <ghost145> hello? the question about FFV1 and SNOW codecs - are there any changelog info or any info about new versions of this codecs or they have 1 version at all? [11:01] <wolf85kunst> i have a question [11:01] <wolf85kunst> why ffmpeg return result on exit error stream ? [11:02] <wolf85kunst> i have to do that to get ffmpeg return in a variable : [11:02] <wolf85kunst> ffmpeg_result=`ffmpeg -i "$line" 2>&1 [11:03] <wolf85kunst> the question is why i have to do that ? [11:03] <wolf85kunst> thanks for answer [11:08] <Peace-> hi everyone i am trying to do this ffmpeg -f alsa -ac 1 -ar 48000 -i hw:1,0 -acodec pcm_s16le -vn audio_recording.wav but i get [11:09] <Peace-> this error Unrecognized option 'f '. [11:09] <Peace-> why? [11:15] <ubitux> ghost145: i don't think snow had recent changes lately, but ffv1 got improved [11:15] <ubitux> (’ version 1.3 iirc) [11:16] <Peace-> ubitux: http://paste.ubuntu.com/5603943 [11:17] <TheSchaf> hello! i'm generating preview audio mp3s from mp3s using ffmpeg. i want to add a fadeout. however it seems to ignore the ss param, no matter what i do... [11:17] <TheSchaf> -ss 20 -t 10 -i foo.mp3 -ab 192k -ar 48000 -acodec mp3 -af "afade=t=out:ss=9:d=1" -y foo_demo.mp3 [11:17] <TheSchaf> this is the command line i use [11:17] <TheSchaf> i've tried various parameters for ss but it always fades out after 1s directly [11:17] <TheSchaf> can someone help me? :) [11:17] <Peace-> ubitux: i tried even to use the command line from ffmpeg doc http://paste.ubuntu.com/5603951 this is for screen grab [11:17] <ubitux> Peace-: works here... [11:18] <Peace-> ubitux: that infact the strange thing [11:18] <Peace-> ubitux: i remembered it worked [11:18] <ubitux> Peace-: maybe a broken revision, try to upgrade [11:18] <Peace-> ubitux: mm i tried to use another ffmpeg , avstuff [11:18] <Peace-> ubitux: it says the same thing [11:19] <ghost145> hello! the question about FFV1 and SNOW codecs - are there any changelog info or any info about new versions of this codecs or they have 1 version at all? [11:19] <Peace-> maybe some library that is fucked up ? [11:19] <ubitux> Peace-: --enable-random [11:19] <ubitux> remove this... [11:19] <Peace-> ok [11:20] <ubitux> ghost145: read the backlog. [11:23] <ubitux> TheSchaf: afade=t=out:ss=9:d=1  ss = start sample; it's expressed in sample, not second [11:23] <ubitux> try "ns" [11:23] <ubitux> Peace-: "st" sorry [11:23] <ubitux> aaarg [11:23] <ubitux> TheSchaf: "st" sorry ^ [11:24] <ubitux> afade=t=out:st=9:d=1 [11:24] <TheSchaf> aaah, okay :) [11:25] <TheSchaf> http://www.ffmpeg.org/ffmpeg-filters.html#Examples-29 is wrong then? [11:25] <ubitux> what is wrong? [11:25] <TheSchaf> it says ss there [11:26] <ubitux> erm.. [11:26] <ubitux> you're right [11:26] Action: TheSchaf is confused :p [11:27] <ubitux> it will be fixed [11:27] <TheSchaf> thanks :) [12:06] <xlinkz0> i want to make a hash for the data in a frame, what buffers should i look at? [12:06] <xlinkz0> i still don't understand how this should be read [12:52] <spaam> w [12:52] <spaam> ops [12:57] <Peace-> ubitux: :S http://paste.ubuntu.com/5604198 [12:57] <Peace-> ubitux: just compiled [12:58] <Cobra_Fast> Hi! I have a problem applying a watermark to a scaled video. The watermark is positioned relatively to the original size rather than the scaled size. A full description is at http://stackoverflow.com/q/16148068/522479 Any ideas? [12:59] <Peace-> ubitux: ok worked with another resolution [13:00] <ubitux> Peace-: --enable-pic --enable-sram --enable-hardcoded-tables --enable-memalign-hack [13:00] <ubitux> why do you do that? [13:00] <ubitux> where did you pick all those flags? [13:01] <ubitux> btw, --enable-random is to randomize completely the configuration... [13:01] <ubitux> it's only meaningful for testing compilation [13:01] <relaxed> Cobra_Fast: use the most recent version, look at -filter_complex in the man page, and have scale first in the filter chain. [13:02] <ubitux> Cobra_Fast: multiple -vf, huh? [13:03] <relaxed> I didn't notice that :/ [13:03] Action: relaxed needs sleep [13:04] <ubitux> Cobra_Fast: also, wtf is this pad? [13:04] <Peace-> ubitux: wel the most of times i compile ffmpeg with every possibile flags [13:04] <Peace-> ubitux: and it worked fine untill a week ago [13:04] <ubitux> Peace-: those flags are insane, don't do that. [13:04] <Peace-> :D hahaha [13:04] <ubitux> you should only --enable external libraries [13:05] <Peace-> ok ok [13:05] <Peace-> i will try again without those flags [13:05] <ubitux> the rest is automatic and will pick what's best for you [13:05] <Cobra_Fast> ubitux: whats wrong with multiple -vf? [13:05] <ubitux> Cobra_Fast: one will be ignored i'd say. [13:05] <ubitux> Cobra_Fast: just overlay the pic and get done with it [13:06] <ubitux> you don't need to pad anything [13:06] <ubitux> nor separate the filtergraph [13:06] <Cobra_Fast> ubitux: yes, I've already changed to using the X and Y arguments of the overlay filter [13:06] <Cobra_Fast> so all in one vf? [13:06] <ubitux> you need to upgrade anyway, your ffmpeg is 2 years old [13:07] <Cobra_Fast> N-52381-g2288c77 is only a couple days old [13:07] <ubitux> ah missed that, i thought it was 0.8 [13:07] <ubitux> anyway, yeah then just overlay [13:08] <ubitux> -i in.mp4 -i watermark.png '[0:0][1:0] overlay' [13:08] <ubitux> -i in.mp4 -i watermark.png -filter_complex '[0:0][1:0] overlay' [13:08] <wolf85kunst> i have a question [13:08] <wolf85kunst> why ffmpeg return result on exit error stream ? [13:08] <wolf85kunst> i have to do that to get ffmpeg return in a variable : [13:08] <wolf85kunst> ffmpeg_result=`ffmpeg -i "$line" 2>&1 [13:09] <wolf85kunst> the question is why i have to do that ? [13:09] <wolf85kunst> thanks for answer [13:09] <ubitux> you mean why it's on stderr? [13:10] <Cobra_Fast> ubitux: -i in.mp4 -i watermark.png -filter_complex "[0:0] scale=...,[1:0] overlay=..." ? [13:10] <ubitux> Cobra_Fast: what do you want to scale? [13:10] <Cobra_Fast> in.mp4 [13:10] <ubitux> yeah then it should work [13:11] <wolf85kunst> ubitux, yes i do (xcuse me for my english) [13:11] <wolf85kunst> i mean the return is in fact stderr... [13:12] <ubitux> wolf85kunst: you're likely not supposed to parse what's on stderr; i don't remember exactly why it's done that way though [13:12] <wolf85kunst> that's why i have to tap that ffmpeg_result=`ffmpeg -i video.avi 2>&1` [13:12] <ubitux> what information are you trying to grab? [13:13] <wolf85kunst> video resolution, codec, duration [13:13] <ubitux> use ffprobe [13:13] <ubitux> and one of the various output [13:13] <wolf85kunst> i ear that [13:13] <ubitux> you have json, xml, csv, etc [13:13] <ubitux> wait simpler and appropriate to parse [13:13] <ubitux> way* [13:13] <wolf85kunst> for the moment i work with regex and ffmpeg [13:14] <ubitux> that's not a good idea [13:14] <wolf85kunst> i have other question...but is not necessary about ffmpeg [13:15] <wolf85kunst> well , if i tap : [13:15] <wolf85kunst> ffmpeg_result=`ffmpeg -i video.avi 2>&1` [13:15] <wolf85kunst> echo "$var" and echo $var is not the same result, i just want to understand why [13:15] <wolf85kunst> any idea ? [13:16] <ubitux> shell escaping [13:16] <wolf85kunst> with echo $var --> all on one line [13:16] <ubitux> try: ffprobe -v 0 -show_entries stream=duration,width,height -of flat video.avi [13:16] <wolf85kunst> with echo "$var" --> severall line [13:17] <ubitux> now try to replace "flat" with "json" or whatever [13:17] <ubitux> if you want to use shell, you can use flat=s=_ [13:17] <ubitux> which allows you to eval directly the result [13:17] <ubitux> and have the results into shell variables directly. [13:18] <ubitux> replace "-show_entries stream=duration,width,height" with "-show_streams" to see what other keys are available [13:19] <wolf85kunst> ffprobe: unrecognized option '-show_stream' [13:19] <wolf85kunst> ffprobe: unrecognized option '-show_entries' [13:19] <ubitux> upgrade. [13:20] <ubitux> your ffmpeg is at least 6 months outdate [13:20] <Cobra_Fast> ubitux: how do i select an input for -b:v? [13:20] <ubitux> -b:v:0 ? [13:21] <ubitux> (you have multiple video streams?) [13:21] <ubitux> ah you have the png; try -filter_complex "[0:0] scale=...,[1:0] overlay=... [out]" -map "[out]" [13:23] <Cobra_Fast> wait my command is all spaghetti now... let me sort it out [13:24] <wolf85kunst> ubitux, i will upgrade thanks [13:25] <wolf85kunst> but somedy can explain to me the problem --> "$var" and $var - the difference please [13:28] <ubitux> that's a shell question [13:29] <ubitux> and the question is unclear given the context [13:29] <Cobra_Fast> -y -ss 0 -t 0:0:30.0 -i 'in.mov' -i 'watermark.png' -filter_complex "[0:0] scale=400:225,[1:0] overlay=305:0 [out]" -map "[out]" -b:v 896k -r 20 -an 'target.flv' - for some reason target.flv is 95x39 and .05 seconds long!? [13:31] <ubitux> Cobra_Fast: try "[0:0] scale=400:225 [p]; [p][1:0] overlay=305:0 [out]" [13:32] <Peace-> ubitux: http://paste.ubuntu.com/5604280 [13:33] <ubitux> Peace-: mmmh. [13:33] <Cobra_Fast> ubitux: YES! IT WORKS! Thank you very much, you are my hero today! :D [13:33] <ubitux> Peace-: -ar is an output option afaik [13:33] <ubitux> Cobra_Fast: no prob, being a hero is my daily life [13:34] <ubitux> Peace-: but i admit the error is unclear.. [13:35] <Peace-> ubitux: mmm i guess it's the kernel ffmepg has never done this shit http://paste.ubuntu.com/5604298 [13:37] <ubitux> your original command line works fine here [13:38] <ubitux> Peace-: http://pastie.org/private/zqjahjtsbna6ubu51yujca [13:40] <Peace-> ubitux: mm untill few days ago ffmpeg worked fine ... [13:40] <Peace-> ubitux: i will try to reboot with another kernel [13:42] <ubitux> have fun [13:52] <Peace-> mah i dunno undestand even with this kernel i got problems [13:53] <ubitux> given the level of insanity of your previous configure flags, you may want to make distclean and run configure and make again [13:54] <Peace-> ubitux: i did before [13:54] <Peace-> the point it was that ffmpeg untill a week ago worked fine with those insane flags [13:55] <Peace-> i suspect that i did a upgrade to my distro [13:55] <Peace-> and it's that the problem [13:55] <ubitux> mmh [13:56] <ubitux> Peace-: can you pastebin again with -v verbose? [13:56] <ubitux> -v debug even [13:59] <Peace-> ubitux: http://paste.ubuntu.com/5604358 ; http://paste.ubuntu.com/5604360 [14:01] <ubitux> Reading option '-f ' ...Unrecognized option 'f '. [14:01] <ubitux> fix your script. [14:01] <Peace-> mm [14:02] <Peace-> ubitux: i always used that script [14:02] <Peace-> anyway let me try see doc [14:03] <ubitux> i doubt ffmpeg ever recognize "-f " [14:03] <ubitux> +d [14:03] <yns> Hello, I'm trying to see what frames of my converted video are keyframes. Tried using -vstats_file but I have no clue how to interpret the file. How can I see what frames are keyframes? [14:04] <ubitux> yns: you can use -vf "drawtext=%{pict_type}" [14:04] <ubitux> also, you can use -vf select to pick only the i-frames [14:04] <ubitux> for vstats_file i don't know, maybe there is some doc on ffmpeg.org [14:05] <yns> thanks for help? sorry for the newbie-nes but are i-frames the same as keyframes? [14:05] <Peace-> ubitux: mmm http://ffmpeg.org/ffmpeg.html i found here ffmpeg -f alsa -ac 1 -i hw:1 -f video4linux2 -i /dev/video0 /tmp/out.mpg [14:06] <ubitux> Peace-: i'm talking about the space after the -f [14:06] <ubitux> in your script [14:06] <Peace-> ah damn shit the space [14:06] <ubitux> copy paste the cmd line you showed me, it works. [14:06] <ubitux> but your script is broken [14:06] <ubitux> it sends the space [14:06] <yns> meant thanks for help!* of course :) [14:07] <ubitux> yns: not exactly the same, but you can likely consider it to be :p [14:07] <yns> hehe ok :) [14:07] <yns> so: ffmpeg -i [input] -vf "drawtext=%{pict_type}" [output] ? [14:08] <ubitux> yes [14:08] <ubitux> you can use ffplay to see what it looks like [14:08] <Peace-> ubitux: :S worked fixing the space [14:08] <ubitux> yns: note that all i-frames might not be considered "key-frames"; basically key-frame is format level, while i-frame is codec level [14:09] <yns> hm okay [14:09] <ubitux> yns: anyway, ffplay input -vf "drawtext=%{pict_type}:fontsize=30:x=20:y=20:fontcolor=yellow" [14:09] <ubitux> i'm assuming you have a recent enough ffmpeg though [14:09] <yns> hm [14:10] <ubitux> otherwise, you can just -vf showinfo and look at your terminal :) [14:10] <yns> but that would just playback only the keyframes of the movie right? [14:10] <yns> I would like to get a list f all frames that are keyframes, that possible? [14:10] <ubitux> no, it will write a text on each frame [14:10] <ubitux> yes [14:10] <yns> oh ok I'm going to try thanks :) [14:11] <ubitux> see the documentation of vf select [14:12] <yns> I'll have a look at that too yes :) [14:14] <yns> ffplay not found :( [14:15] <yns> it doesn't automatically install when installing ffmpeg? [14:15] <ubitux> it should be available [14:15] <ubitux> did you build ffmpeg yourself? [14:15] <ubitux> make sure it was built on a system where the sdl headers were available [14:15] <yns> no [14:15] <yns> i didnt build myself [14:16] <ubitux> what distro? [14:16] <yns> http://www.evermeet.cx/ffmpeg/ [14:16] <yns> downloaded ffmpeg-1.2.7z [14:16] <ubitux> ah, mac os [14:17] <ubitux> no idea then [14:17] <ubitux> "--disable-ffplay" [14:17] <yns> unpacked it, copied it to /usr/local/bin and ran it [14:17] <yns> -bash: --disable-ffplay: command not found [14:17] <ubitux> http://www.evermeet.cx/ffplay/ [14:17] <ubitux> no i meant it was built with "--disable-ffplay" [14:18] <ubitux> that's what i read in the page [14:18] <yns> ah ok. sorry I'm a super newbie :) [14:18] <yns> thanks [14:18] <yns> that procedure I mentioned is the way to go right? [14:18] <yns> unpacked it, copied it to /usr/local/bin and ran it [14:23] <yns> [drawtext @ 0x10207bc00] Key '%{pict_type}:fontsize' not found. [14:25] <yns> using: ffplay input -vf "drawtext=%{pict_type}:fontsize=30:x=20:y=20:fontcolor=yellow" [14:25] <ubitux> yes, 1.2 is too old :) [14:25] <ubitux> you need git ;) [14:26] <yns> ok :) [14:26] <ubitux> anyway, check -vf showinfo, it will print all kind of stuff [14:26] <ubitux> notably the "type" you are interested in [14:26] <yns> ok :) [14:26] <ubitux> you can also extract all the frame with -vf select, but i let you read the doc to see how to achieve that [14:26] <ubitux> (hint: ffmpeg.org ’ documentation ’ filters) [14:27] <yns> thank you [14:27] <yns> -vf showinfo worked [14:27] <yns> going to have a look at the doc now :) [14:28] <yns> type:I means it is a I-frame which could be considered keyframe? [14:31] <ubitux> yns: yes [14:32] <ubitux> yns: I-frame means it's a "complete" frame standalone; key-frame is more like a format wording which points to a point where you can seek (it's often a keyframe, but not all i-frame could be marked as key-frame) [14:32] <yns> hm [14:32] <ubitux> meh random wording, but i hope you get the point [14:32] <yns> so no way to see actual keyframes then? [14:33] <ubitux> you're really interested in the key frames? [14:33] <ubitux> (what's the purpose?) [14:33] <ubitux> get the seek points? [14:34] <yns> no, I'm really of track I guess :) Working with openFrameworks, want to encode my videos so every frame has a keyframe and want to make sure it worked [14:36] <ubitux> if all frames are intra, you can technically seek anywhere; even if the format hasn't marked all the frames as key frames... i guess [14:36] <ubitux> oh you could use ffprobe to get the key frames [14:36] <ubitux> that should be faster [14:37] <yns> okay [14:37] <yns> what does it mean hen all frames are intra? [14:37] <ubitux> ffprobe -v 0 -show_entries frame=key_frame -of flat input [14:37] <ubitux> try this :) [14:38] <yns> I will, Guess I have to install ffprobe first :) [14:38] <ubitux> you can download it from the same website [14:38] <ubitux> it's one of the FFmpeg tools [14:38] <ubitux> just like ffmpeg, ffplay and ffserver [14:39] <yns> okay :) [14:39] <ubitux> btw, the above command will just work at format level, so it should be faster than looking into the codec level like with any -vf [14:41] <yns> okay :) and what did you by if all frames are intra? or is that out of scope? [14:42] <yns> ffprobe -v 0 -show_entries frame=key_frame -of flat input [14:42] <yns> nothing really happens? [14:44] <ubitux> remove the -v 0 and see if there is any error [14:44] <ubitux> (replace "input" with your file of course) [14:44] <ubitux> yns: all frames intra = all frames with type:I [14:44] <yns> ah okay :) [14:45] <yns> Invalid data found when processing input [14:45] <yns> thats the error I get when remove -v 0 [14:45] <ubitux> is your input file even valid? [14:45] <ubitux> (can you ffplay it?) [14:45] <ubitux> (or even transcode it with ffmpeg) [14:45] <yns> sorry :s [14:46] <yns> it is invalid as hell :) [14:46] <yns> and it works! [14:47] <yns> Thanks a million! [14:47] <yns> helped me big time! [14:47] <ubitux> your welcome [14:47] <yns> by the way: you know by any chance how to convert into photo jpeg? [14:47] <ubitux> ? [14:48] <yns> aka P-JPEG [14:48] <yns> am I asking crazy stuff? [14:48] <ubitux> i don't know [14:49] <yns> okay thanks anyway :) [14:49] <yns> anyone? [14:49] <ubitux> never heard of p-jpeg [14:49] <ubitux> any reference link? [14:49] <yns> http://www.siggraph.org/education/materials/HyperGraph/video/codecs/JPEG.htm... [14:54] <ubitux> i wonder how that differs from standard jpeg [14:54] <yns> no clue [14:55] <yns> I've read it should be even faster in scrubbing than MJPEG [14:56] <blez> I have a slight problem with dshow [14:57] <blez> ffmpeg -f dshow -audio_decice_number 0 -f flac - [14:57] <blez> Output file #0 does not contain any stream [14:58] <yns> can I convert to jpeg maybe? would that give me a playable movie? [14:59] Action: blez pokes ubitux [14:59] <blez> that's "device" [15:00] <xlinkz0> why does the demuxing example call avformat_find_stream_info with NULL for the second argument? [15:02] <ubitux> blez: i never used dshow [15:03] <blez> most people haven't [15:03] <ubitux> i didn't use windows since years as well [15:03] <ubitux> ...so i can't help you [17:00] <yns> anybody a clue how to encode to Photo JPEG? http://www.siggraph.org/education/materials/HyperGraph/video/codecs/JPEG.htm... [17:39] <simonsimcity> Hi, I know that it's possible to add an additional audio-track to an existing video ... but is it possible to change the name of the track? [17:40] <simonsimcity> In VLC for example I can then choose the track and it has a name ... On some VOB files I got it to be named after the language, but I can't see the option in ffmpeg's command ... [17:40] <simonsimcity> An example I found for just adding audio: http://blog.noizeramp.com/2011/04/21/adding-audio-track-to-video-with-ffmpeg... [17:46] <simonsimcity> *yess* I found it. "ffmpeg -i INPUT -metadata:s:a:1 language=eng OUTPUT", right? [17:59] <simonsimcity> I found an option -alang ... what about that? Does it do the same? [18:15] <simonsimcity> so ... the parameters alang, vlang and slang are removed? http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=35c5d7d1ef7b623779... [18:17] <simonsimcity> It would be nice to update the documentation for metadata then. Currently you have a hint in there, that it's possible, but no hint, that the language should be a 3 letters ISO 639 code. [19:01] <simonsimcity> It's nice to know that some container-formats do not support every metadata setting :) http://wiki.multimedia.cx/index.php?title=FFmpeg_Metadata [19:01] <simonsimcity> Could this be linked here? http://ffmpeg.org/ffmpeg.html [19:40] <xlinkz0> i remember putting a banana metadata key in mp4 so are you sure it's restricted? [20:08] <ghost231> anyone here [20:08] <ghost231> & [20:08] <ghost231> ? [20:10] <ghost231> are there snow and ffv1 encoders in ffmpeg last build? [20:11] <ghost231> and how to use them? [20:13] <ubitux> just like the others [20:14] <ghost231> stop, snow still in pack? [20:15] <ubitux> snow is still in ffmpeg if that's the question [20:16] <ghost231> ok? [20:16] <ghost231> ok, but tell me were can I get the versions of these codecs (in pack) [20:18] <ubitux> i don't know what pack you are talking about [20:19] <ghost231> the newest, lastest pack by zeranoe for win (32, 64 bit) [20:20] <ubitux> these codecs are part of FFmpeg, so there version depends are basically the ffmpeg version [20:20] <ubitux> but i don't even get your question anyway [20:36] <ghost231> i want to know about snow and ffv1 - what are the last versions, and what are in ffmpeg packs for windows? [20:37] <ghost231> and how to use them (they are lossless codecs) [20:42] <ghost231> I know about ffv1 - last version is 3, as I know, but not shure.. and snow is one version at all (no changelog) as I know... And I want to get info about them here (where else?). [20:43] <ghost231> i want to know about snow and ffv1 - what are the last versions, and what are in ffmpeg packs for windows? [20:43] <ghost231> and how to use them (they are lossless codecs) [20:46] <ubitux> snow is not lossless afaik [20:47] <ubitux> and both are ffmpeg codecs [20:47] <ubitux> so look at the git log history of ffmpeg [20:48] <ghost231> where are the info about versions of codecs? [20:49] <ghost231> please give me the link (so look at the git log history of ffmpeg) [20:51] <ubitux> ffmpeg.org [20:51] <ubitux> go to download, clone the repository [20:52] <ubitux> git log libavcodec/ffv1dec.c libavcodec/ffv1.c etc [20:53] <ghost231> but i have windows (??) [20:58] <ubitux> i can't help you. check on the web interface [20:58] <ubitux> http://source.ffmpeg.org [20:59] <ghost231> I; [20:59] <ghost231> ok [21:01] <beastd> ghost231: besides the source in ffmpeg, ffv1 has also an external spec written by its author [21:11] <beastd> ghost231: here is the source document for the FFV1 spec: https://github.com/FFmpeg/FFV1 [21:32] <durandal_1707> ubitux: snow have lossless mode.... [21:33] <ubitux> durandal_1707: ah, i see, ok [21:35] <durandal_1707> instead of dwt_97 for lossless and qscale = 0 you use dwt_53 [22:00] <Zarx> x264 has an option to set the SAR to stretch the video on playback. What is the equivalent option in ffmpeg? [22:01] <durandal_1707> -vf setsar ? [22:01] <durandal_1707> anyway, you can pass all x264 options to libx264 encoder [22:02] <Zarx> oh, i forgot i can do that [22:02] <Zarx> ill do it that way [22:32] <Zarx> hmmm, i cant quite figure out the syntax for this [22:33] <Zarx> x264's sar option takes a colon in it [22:33] <Zarx> but the colon is also used to separate options [22:47] <shadowing> does anyone have experience merging ts files? [22:48] <shadowing> I've tried running "ffmpeg -f concat -i ts/dvr -async 1 -c copy concat.mpeg" [22:48] <shadowing> where ts/dvr is a text file for the concat protocol [22:48] <shadowing> I keep on getting this error spouted out [22:48] <shadowing> [h264 @ 0x3080200] non-existing SPS 32 referenced in buffering period [22:49] <shadowing> [h264 @ 0x3080200] non-existing PPS referenced [22:49] <shadowing> [h264 @ 0x3080200] non-existing SPS 32 referenced in buffering period [22:49] <shadowing> [h264 @ 0x3080200] non-existing PPS 0 referenced [22:49] <shadowing> [h264 @ 0x3080200] decode_slice_header error [22:49] <shadowing> [h264 @ 0x3080200] no frame! [23:43] <Anaphaxeton> i was expecting some mpeg-ps format but it doesnt exist [23:44] <Anaphaxeton> i used mpeg and the result was 80 instead of 3 streams... [23:47] <Anaphaxeton> what i really want is an SD-video container [23:54] <Anaphaxeton> the mpeg-ps wont fit pcm btw [23:54] <Anaphaxeton> why is that? [23:58] <Mavrik> probably because it doesnt carry stream information [23:58] <Mavrik> and expects streams to do that [23:59] <Mavrik> also, I doubt theres a use case for raw audio streaming [00:00] --- Sat Apr 27 2013