[Ffmpeg-devel-irc] ffmpeg.log.20160304

burek burek021 at gmail.com
Sat Mar 5 02:05:02 CET 2016


[08:27:48 CET] <pingufan> Good morning.  I try to transcode an mkv video into a new one with same picture size but lower bandwidth. h264 and ac3 is what I want.
[08:28:33 CET] <pingufan> Using my parameters from 1-2 years ago (I upgraded my system recently to openSUSE 13.2), this does not work any more.
[08:28:44 CET] <pingufan> Can somebody, please, help me?
[08:29:33 CET] <relaxed> pingufan: pastebin.com your command and console output
[08:33:28 CET] <pingufan> This is my entire bash script:   http://pastebin.com/iUtMAWGt
[08:34:50 CET] <pingufan> This is the output on screen:  http://pastebin.com/2QBJn6kw
[08:35:05 CET] <relaxed> remove -target pal-dvd
[08:36:19 CET] <pingufan> This is the output when using rerip0:   http://pastebin.com/5cKZtQ3m
[08:37:02 CET] <relaxed> do you want mpeg2 video or h264?
[08:37:47 CET] <pingufan> I want h264.  I have only limited network bandwidth. So I tend to use ~4-5 kbit/s only
[08:38:26 CET] <pingufan> Can't I use a "target" and then re-define some of oits parameters?
[08:38:30 CET] <furq> if you want to keep the same resolution then remove -target pal-dvd and -s hd1080
[08:38:54 CET] <furq> also i assume you have some specific reason to use keyint=5 because that's not going to help you save bitrate
[08:39:21 CET] <furq> likewise -r 25 is redundant if you want to keep the same framerate
[08:40:15 CET] <pingufan> This is a grown list of parameters.  in old openSuSE 12.2, the parameters from "function rerip0 ()" gave a good result.  Now I try to find out in a new function working parameters.
[08:40:38 CET] <furq> well rerip0 is failing because -target pal-dvd sets the output codec to mpeg2
[08:40:56 CET] <furq> the other one is failing because
[08:40:57 CET] <furq> Error writing trailer of rsg-extant-s01e01-1080p.mkv: Invalid data found when processing input
[08:41:05 CET] <furq> which has nothing to do with your settings
[08:41:28 CET] <relaxed> maybe an incomplete torrent download?
[08:41:42 CET] <pingufan> But why does function "rerip0", the old one, work?
[08:41:55 CET] <furq> it doesn't work, you just pasted it not working
[08:42:04 CET] <pingufan> This happens at very beginning.
[08:42:06 CET] <furq> oh nvm no you didn't
[08:42:59 CET] <pingufan> I posted two outputs. The last one works, I only aborted with ^C.
[08:43:23 CET] <relaxed> [matroska @ 0x1956100] Invalid chapter start (2458664000000) or end (2458581000000)
[08:43:36 CET] <pingufan> This second output is when using "function rerip0"
[08:44:01 CET] <furq> pingufan: try with -map_chapters -1
[08:44:39 CET] <furq> i also advise against -x264opts keyint=5 unless you have a very specific reason for doing that
[08:44:47 CET] <furq> it'll almost certainly result in a bigger output file
[08:44:47 CET] <pingufan> instead of -map 0:0 -map 0:1
[08:44:59 CET] <pingufan> Or in addition?
[08:45:02 CET] <furq> in addition
[08:45:21 CET] <pingufan> Before or after -map entries?
[08:45:25 CET] <furq> makes no difference
[08:45:42 CET] <furq> as long as it's an output option
[08:47:51 CET] <pingufan> Seems to work:   This is the output (using "function rerip()" with added "-map_chapters -1":  http://pastebin.com/ip2ac7rK
[08:48:11 CET] <pingufan> Does this look good now?   I pressed "q" after some seconds.
[08:50:52 CET] <pingufan> furq: What does "-map_chapters -1" do?   I want to understand.
[08:51:33 CET] <furq> -map_chapters 0 maps the chapters from input file 0 to the output file, which was causing your error
[08:51:38 CET] <furq> setting it to -1 turns that off
[08:52:13 CET] <furq> i'm not sure why that was only causing an error with x264 and not mpeg2
[08:53:33 CET] <pingufan> So "-map_chapters 0"  is a default setting?  (I didn't write this line)
[08:54:14 CET] <relaxed> furq: different output containers
[08:54:43 CET] <furq> they're both mkv
[08:54:47 CET] <furq> pingufan: yes it is
[08:54:53 CET] <furq> for mkv, at least
[08:55:06 CET] <relaxed> well, Output #0, dvd, to 'rsg-extant-s01e01-1080p.mkv':
[08:55:12 CET] <pingufan> Then this seems to be new in ffmpeg. :)
[08:55:22 CET] <relaxed> so it was VOB named *.mkv
[08:56:21 CET] <pingufan> Can ffmpeg convert a .ts stream from my dm800hdse box, too?  Transport strams often cause biggest troubles.
[08:57:26 CET] <pingufan> I want to record a movie, then convert it from .ts into a smooth "whatever", cut out advertising, then make an .mkv.
[08:57:32 CET] <furq> probably
[08:57:48 CET] <pingufan> I often lost A/V sync hereby.
[08:59:07 CET] <pingufan> I think this is caused by hard cuts on sender side. They cut and start a new stream. this confused my older software.
[09:00:03 CET] <pingufan> Or noise/artifacts in the video. They also cause A/V sync losses
[09:01:57 CET] <pingufan> This is the current output:  http://pastebin.com/ip2ac7rK    <-- Looks good now?
[09:06:51 CET] <pingufan> Result is perfect.   THANK YOU for your kindly help.
[09:09:28 CET] <shams> hi all
[09:10:11 CET] <shams> is there anyone available who has experience with qnap ffmpeg package upgrade?
[09:11:01 CET] <pingufan> Sorry.  I make a wide, wide bow around qnap.
[09:11:46 CET] <shams> on my qnap server i have 0.8.10 ffmpeg version
[09:11:49 CET] <furq> i have experience of sitting on irc listening to a guy complaining about how terrible ipkg is, if that helps
[09:12:05 CET] <shams> lolz
[09:12:46 CET] <shams> may i get some help regards
[09:14:31 CET] <furq> if it's x86 then you could try http://johnvansickle.com/ffmpeg/
[09:18:14 CET] <shams> @furq, how can i check the system architecture on qnap ssh ... any idea?
[09:18:15 CET] <shams> :)
[09:18:48 CET] <furq> uname -m
[09:19:24 CET] <furq> you probably also want to check uname -r to make sure it's >=2.6.32
[09:21:53 CET] <shams> let me check ... thanks :)
[09:22:23 CET] Action: relaxed guesses arm
[09:22:39 CET] <furq> https://helpdesk.qnap.com/modellist.htm
[09:22:46 CET] <furq> there are plenty of x86 ones
[09:22:58 CET] <relaxed> oh
[09:22:59 CET] <shams> yes, its x86_64
[09:23:16 CET] <relaxed> kernel version?
[09:23:39 CET] <shams> 3.12.6
[09:24:06 CET] <shams> can i install new ffmpeg as other instance without touching the older one?
[09:24:35 CET] <furq> probably
[09:24:40 CET] <relaxed> yes, it's a binary you can place anywhere
[09:24:57 CET] <furq> you'll need to make sure your PATH points to the new one before the old one though
[09:24:59 CET] <shams> should i grab it from here
[09:25:00 CET] <shams> http://johnvansickle.com/ffmpeg/
[09:25:01 CET] <shams> ?
[09:25:09 CET] <furq> there's nowhere else to grab it from
[09:25:09 CET] <relaxed> yeah, those are my builds
[09:25:40 CET] <shams> Great... let me do and i'll update you if it works for me
[09:25:56 CET] <shams> actually, i just have to make thumbnails of videos
[09:26:12 CET] <shams> and when i run ffmpeg
[09:26:29 CET] <furq> relaxed: out of interest, are you obliged to link to the source code even if it's unpatched
[09:26:30 CET] <meldron> hi guys, i am trying to compile ffmpeg with x265 support, i got it working 2 weeks ago, but now if i try again (sticking to this guide: https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu), i always get "ERROR: x265 not found using pkg-config" even with this x265.pc http://pastebin.com/bZUMcaW7 in a custom PKG_CONFIG_PATH and --pkg-config-flags="--static", here my configure cmd: http://pastebin.com/Jxr3bRYF . Anybody got an idea?
[09:26:45 CET] <furq> meldron: are you checking x265 out from git/hg
[09:26:46 CET] <relaxed> furq: yes
[09:27:10 CET] <furq> if so you need to switch to the stable branch, not master
[09:27:22 CET] <furq> i should maybe report that as a bug
[09:28:05 CET] <shams> ffmpeg encountered an error when attempting to read
[09:28:06 CET] <meldron> furq: hey furq i am doing it like this http://pastebin.com/e1YipYpZ
[09:28:13 CET] <meldron> so yeay i am not switching any branches
[09:28:21 CET] <furq> https://github.com/videolan/x265/commit/85f72fe907fef56f5bb82bf1b38e07a9928675bd
[09:28:28 CET] <furq> this commit breaks ffmpeg's configure script
[09:28:37 CET] <furq> if you're using git then `git checkout stable`
[09:28:38 CET] <shams> https://github.com/buggedcom/phpvideotoolkit-v2/issues/87
[09:29:54 CET] <meldron> ah okay, currently using the mercury but i think i will change it
[09:30:11 CET] <furq> there's probably a way to do that with hg but i don't remember what it is
[09:30:45 CET] <meldron> never used it, just copied the instruction from the guide i think i will switch to the github repo
[09:30:49 CET] <meldron> thank you very much
[09:31:31 CET] <furq> meldron: could you pastebin your config.log (the broken one)
[09:31:48 CET] <shams> @relaxed... will your build resolve my issue?
[09:31:50 CET] <furq> it saves me having to fire up this vm and compile the wrong x265 branch
[09:32:11 CET] <shams> or can i fix the existing one?
[09:33:45 CET] <relaxed> shams: huh? the url you pasted is using 0.8.10. My builds support -af
[09:34:23 CET] <shams> yes i have 0.8.10 ffmpeg version on my qnap server
[09:34:34 CET] <shams> what is -af?
[09:35:49 CET] <relaxed> where is the old version installed?
[09:36:21 CET] <shams> o	/mnt/ext/opt/ffmpeg/usr/bin
[09:36:29 CET] <meldron> furq: sure
[09:36:36 CET] <meldron> give me a second
[09:37:20 CET] <relaxed> shams: echo $PATH
[09:38:36 CET] <meldron> furq: http://pastebin.com/M2VTjVsP
[09:38:48 CET] <furq> thanks
[09:38:59 CET] <furq> now to figure out how to report an ffmpeg bug
[09:39:40 CET] <shams> --/share/CACHEDEV1_DATA/.qpkg/container-station/bin:
[09:40:01 CET] <shams> ---  /share/CACHEDEV1_DATA/.qpkg/container-station/bin:/share/CACHEDEV1_DATA/.qpkg/container-station/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/bin/X11:/usr/local/sbin:/usr/local/bin:/Apps/bin:/Apps/s
[09:40:10 CET] <shams> the full path
[09:40:38 CET] <relaxed>  /mnt/ext/opt/ffmpeg/usr/bin isn't in your path
[09:41:34 CET] <shams> i'm giving this path in phpvideotoolkit liberary
[09:42:16 CET] <shams> ffmpeg -v is also working globally on ssh
[09:43:22 CET] <relaxed> what's the problem? give the absolute path to the new ffmpeg binary
[09:44:33 CET] <shams> Sorry, you mean i should install your binary and set your binary path in my phpvideotoolkit library?
[09:44:53 CET] <shams> would your library work and make video thumbnails then?
[09:45:43 CET] <relaxed> yes, but it's not a library
[09:46:15 CET] <relaxed> it's a binary with statically linked libs
[09:46:46 CET] <shams> yes, i got it
[09:46:53 CET] <shams> let me try and i'll update you
[09:47:05 CET] <shams> Thanks for the great greattttttttt help
[09:47:09 CET] <shams> Stay blessed
[09:47:40 CET] <shams> :)
[10:10:06 CET] <absence> what other libs/utils than ffmpeg are there that can decode mpeg 2 transport stream? i want to do a comparison with ffmpeg
[10:23:19 CET] <shams> @relaxed, @furq.... Thanks for your help... it was superb experience .. resolved my issue
[10:23:34 CET] <shams> you may live long and have so much success in your future
[10:40:45 CET] <pingufan> Hi, I have another minor issue with ffmpeg.   I use this script to transcode a series of movies to a lower video bandwidth:  http://pastebin.com/HDVCG4fF
[10:41:38 CET] <pingufan> What I wonder about:  It stops displaying the current frame number etc. in last line, but it still works, the output file is increasing.
[10:42:00 CET] <pingufan> A bug?  A missing option? -- If one could help me, please?
[10:43:07 CET] <pingufan> I am reading the input and writing the output over NFS mount, if this is of any importance.
[10:45:18 CET] <NoMercy78> Hello again
[10:45:41 CET] <pingufan> Hi!
[10:45:59 CET] <NoMercy78> I have a compilation issue :(
[10:46:15 CET] <NoMercy78> if anyone can helpout?
[10:46:32 CET] <pingufan> I never compiled it.  I really cannot help you. :(
[10:47:08 CET] <c_14> NoMercy78: pastebin your configure line and error
[10:47:40 CET] <NoMercy78> well in case anyone else can here it goes; I know that newer intel compilers are not officially supported but is there a way to make it work?
[10:48:12 CET] <NoMercy78> configure says (actually most likely icl says) that it can not create tmp files
[10:49:07 CET] <c_14> NoMercy78: upload your config.log (or at least the last 50 or so lines)
[10:55:46 CET] <pingufan> has ffmpeg difficulties when run on "nice -+15" with "-threads 2"  ?    After outputting some frame= ... updates, it stopped doing that, but it still converts/transcodes the movie.
[10:56:06 CET] <NoMercy78> thank you, here is all the config.log; http://pastebin.com/3HWB0EnV
[10:56:28 CET] <NoMercy78> trying to build on windows btw
[11:18:12 CET] <c_14> NoMercy78: hmm, no clue, sorry
[11:20:18 CET] <NoMercy78> well, thank you for your time. I'll try forums and mailing list
[11:20:27 CET] <NoMercy78> I need to figure this out somehow
[11:31:09 CET] <takacsv_> hi all
[11:33:41 CET] <takacsv_> My google-fu failed me, so I'm not able to find out if ffmpeg supports h264 encoding using vaapi or not. I compiled ffmpeg and do have the respective hwaccel enabled but I'm either unable to create a proper CLI (I have one though that encodes using the cpu) that does what I want or maybe it can't be done. Does anyone have experience with this?
[11:40:06 CET] <jkqxz> takacsv_:  The hwaccel is decoding only.  ffmpeg does not yet have VAAPI encoding support.
[11:40:38 CET] <pkeuter> hey guys. is there a way to append to an mp3 file? e.g. in a livestream recording when the connection errors, i want to restart it and let the recording continue
[11:41:05 CET] <takacsv_> jkqxz: thanks, good to know
[11:54:31 CET] <mcmic> Hello
[11:55:03 CET] <mcmic> While using ffmpeg to record my screen, I get a weird message I did not have before: [mp4 @ 0x563b675d5320] Non-monotonous DTS in output stream 0:1; previous: 358289, current: 346325; changing to 358290. This may result in incorrect timestamps in the output file.
[11:55:36 CET] <mcmic> This is only happening if I try to capture sound with pulseaudio, If I only capture video with x11grab it works fine
[11:56:16 CET] <mcmic> Full command I use is: ffmpeg -f x11grab -show_region 1 -thread_queue_size 16 -framerate 20 -video_size 1200x720 -i :0.0+0,40 -f pulse -ac 2 -i default -preset fast -c:a libmp3lame out.mp4
[12:16:48 CET] <mcmic> Ok, found a work around on your bug tracker, seems to work
[15:16:50 CET] <flux> hello. I'm reading an ISO MP4 file with libavformat and I was wondering, is there a way to determine that the file has an edit list entry (with non-zero media time)?
[15:21:45 CET] <t4nk699> Can anyone recommend a correct ffmpeg command for converting MOV to MP4. I am currently using ffmpeg -i vid.MOV -c copy out.mp4 which does not play on Ipads and Iphones. Thanks
[15:29:02 CET] <c_14> t4nk699: https://trac.ffmpeg.org/wiki/Encode/H.264#AdditionalInformationTips see the compatibility heading
[15:39:15 CET] <KevinA_> Hello, does anyone have a code example of encoding, or documentation on encoding, a file using h264_qsv and libavcodec?  All I can find are decoding.  And I know I'm doing something wrong, but i don't know what.  I'm getting an MFX error "Unsupported" when qsvenc.c calls GetVideoParams
[15:46:05 CET] <BtbN> did you do all the patch hackery intel expects you to do?
[15:46:11 CET] <BtbN> like, patched kernel and libva?
[15:53:26 CET] <KevinA_> it works from ffmpeg bin
[16:18:52 CET] <satinder_> hi there have any one who using ffmpeg api
[16:35:23 CET] <durandal_170> satinder_: question?
[16:35:52 CET] <satinder_> ‘PIX_FMT_RGB24’ undeclared (first use in this function)
[16:36:33 CET] <satinder_> error during compile ffmpeg first tutorial from https://github.com/phamquy/FFmpeg-tutorial-samples/blob/master/tutorial01.c
[16:37:07 CET] <furq> satinder_: https://ffmpeg.org/doxygen/2.8/pixfmt_8h.html
[16:37:11 CET] <furq> looks like it changed in 2.8
[16:37:26 CET] <durandal_170> satinder_: was renamed
[16:46:00 CET] <satinder_> Hi I want capture video frame from video
[16:46:08 CET] <satinder_> any body can help
[16:46:18 CET] <satinder_> any link for that
[16:46:32 CET] <satinder_> durandal_170 : ??
[16:49:04 CET] <satinder_> furq : ??
[17:19:58 CET] <Fyr> furq, http://xtemp09.ucoz.net/Codec_comparison.png
[17:20:08 CET] <Fyr> does it look fancy to you?
[17:21:41 CET] <furq> is that psnr
[17:21:50 CET] <Fyr> just subtraction
[17:22:09 CET] <Fyr> Original signal - Converted signal = Noise
[17:22:16 CET] <furq> you also probably want to specify it's fdk and not fhg (winamp)
[17:22:24 CET] <furq> since it's not clear if those are the same
[17:22:51 CET] <Fyr> what name does Windamp use?
[17:22:58 CET] <furq> fhg
[17:23:08 CET] <furq> apparently they're two different implementations
[17:23:45 CET] <furq> actually if you mean what it's called within winamp then i don't know
[17:23:59 CET] <furq> i don't have winamp installed because it's not 2008
[17:26:26 CET] <Fyr> furq, reload the picture.
[17:26:43 CET] <furq> that'll do it
[17:28:08 CET] <Fyr> furq, https://youtu.be/ghO8N1s2Brc
[17:28:43 CET] <furq> you know that youtube is converting this to fdk-aac right
[17:28:58 CET] <Fyr> yeah
[17:29:14 CET] <Fyr> I appended a message in the end of the description.
[17:32:19 CET] <Fyr> furq, FFMPEG's wiki requires an account to edit pages?
[17:32:26 CET] <furq> i've never tried
[17:44:58 CET] <kaseano> Hi, I've spent the last week trying to restream/transcode a live feed from a camera (rtsp://.../media.smp) into OGG via FFMEG.  I can play the rtsp from VLC, I can't seem to get ffmpeg to connect though. "ffmpeg -i rtsp://... -loglevel debug" idles for a couple minutes then returns Input/output error.  Hoping someone can give me a hint
[17:48:33 CET] <morphles> I'm having crazy trouble achieving basic thing. I have a video with power point presentation slide up effect on text. Source video is ogv, is 15 fps (acording to say vlc, but using avconv, when encoding it shows 14.67), in any case I try to transcode it to h264 (or even if I try to keep it theora), while merging with alternate (edited/cleaned up) soundtrack, in the resulting video that powerpoint/presentation slide up animation is hm, crazy stuttering, basical
[17:48:40 CET] <morphles> Any advice?
[17:52:53 CET] <satinder_> Hi I want read a network video stream and write it on v4l2 video node
[17:52:59 CET] <satinder_> with ffmpeg api
[17:53:13 CET] <satinder_> any one please help
[17:53:20 CET] <satinder_> ;(
[18:19:14 CET] <morphles> ffs problem is not output but somehow it manages to read input steam in some retarded way, even encoding with -g 1 and resulting size of x10 original i still shows choppy restult....
[18:20:11 CET] <aeer1> Possibly stupid question -- don't have a lot of background on this. Is there a way for me to produce a slower video without changing the framerate?
[18:20:31 CET] <aeer1> I have an imagesequence, trying to avoid choppiness.
[18:22:42 CET] <furq> aeer1: -framerate before -i is the input framerate, -r after -i is the output framerate
[18:22:52 CET] <furq> you can set them differently
[18:23:05 CET] <furq> assuming "imagesequence" means the image2 demuxer
[18:27:44 CET] <aeer1> furq: Ok. So if I want to slow things down, but minimize the "choppy" effect I'm getting, I want to reduce the input framerate?
[18:28:27 CET] <aeer1> (also, yes, imag2)
[18:29:21 CET] <furq> i don't really know what you mean by choppy, but if you want to slow it down then reduce the input framerate
[18:33:37 CET] <absence> aeer1: what you want is called optical flow or something
[18:33:57 CET] <absence> aeer1: it's quite computationally expensive, and can't be done by ffmpeg i think
[18:34:16 CET] <absence> aeer1: mvtools for avisynth/vapoursynth can do it
[18:34:51 CET] <retard> what you want to do is creating information from nothing
[18:34:59 CET] <retard> like one of those terrible 100hz tvs
[18:35:09 CET] <retard> where the algorithm keeps getting thrown off by pans
[18:35:12 CET] <furq> you two are reading a lot into this
[18:35:21 CET] <retard> no, like.. eh
[18:35:30 CET] <retard> that is what has to be done to slow down video while maintaining the framerate
[18:35:36 CET] <retard> you need to add information that is not there
[18:35:42 CET] <furq> he said he was using an image sequence
[18:35:49 CET] <absence> retard: mvtools is a lot more advanced than the real-time algorithms in 100hz tvs :) it works quite well actually
[18:35:53 CET] <furq> maybe "choppy" just means the images are transitioning too fast
[18:35:53 CET] <retard> expand your image sequence
[18:36:19 CET] <absence> furq: input format has nothing to do with it. he asks to slow down the video without reducing the framerate
[18:37:06 CET] <furq> it has quite a lot to do with the assumption that he wants smooth motion
[18:37:43 CET] <retard> absence: it's still not magic
[18:37:58 CET] <absence> furq: an image sequence isn't more or less smooth than a video file, it's just a different way of storing it
[18:38:14 CET] <absence> retard: nobody said it was
[18:38:16 CET] <furq> yes but you're assuming he wants smooth video and not a slideshow
[18:38:31 CET] <furq> the former makes less sense to me
[18:38:35 CET] <retard> he says he wants to minimize the "choppy" effect he's getting
[18:38:39 CET] <retard> there is no assumption
[18:38:40 CET] <retard> it is plainly stated
[18:39:35 CET] <absence> furq: "image sequence" means something specific in video terms. it's video stored as a sequence of separate files. i understand that you could think of it as a slide show, but that's not what the term usually means
[18:46:55 CET] <aeer1> I am very much a novice with this, thus the silly questions/poor terminology. It's a timelapse built from a sequence of .png. I was using -r 24 and getting a nice smooth video, but rather quick.
[18:46:56 CET] <aeer1> Before I posted here, I was cutting down -r, which gave a longer video, but the motion wasn't as smooth.
[18:47:21 CET] <retard> yeah, to "smooth" it some kind of interpolation is required
[18:48:59 CET] <furq> aeer1: try -vf framerate=24 instead of -r 24
[18:51:23 CET] <absence> aeer1: no about of ffmpeg flags will get you what you want, you need something that can do optical flow
[18:51:47 CET] <absence> about = amount :)
[18:52:59 CET] <absence> vapoursynth has a bit of a learning curve, but the mvtools plugin can do it. it's free and has good quality. not sure if there are non-commercial alternatives
[18:53:20 CET] <absence> anyway gotta run
[18:54:05 CET] <aeer1> Thanks for the help everyone.
[21:32:30 CET] <atomnuker> Fyr: what an uninformed comparison
[21:32:54 CET] <atomnuker> removed the links from the wiki because it's plain wrong to compare like that
[21:33:18 CET] <atomnuker> read up on the perceptual noise subsitution coding tool in the AAC spec
[21:33:46 CET] <atomnuker> in short, it substitutes random freqency bands with random noise
[21:33:59 CET] <atomnuker> which makes it completely pointless to run the test
[21:34:19 CET] <atomnuker> what's important is the perceptual quality, not the signal to noise ratio
[21:34:34 CET] <atomnuker> and I bet you didn't even bother to sync up the original with the decoded track
[21:34:59 CET] <JEEB> he was just complaining that he was getting the encoder delay in the WAV on -devel
[21:35:07 CET] <JEEB> which is something way too many people get caught up in
[21:35:24 CET] <JEEB> (also he had an issue where seemingly he didn't get the encoder delay written into the m4a)
[21:36:31 CET] <JEEB> did the ffaac decoder have a thingy for nulling fdk-aac's encoder delay per chance? because he seemed to imply that he wasn't getting it with fdk-aac
[21:36:52 CET] <JEEB> (which I would understand if one would use fdk-aac's decoder, but I think he was saying that he was using ffaac)
[21:37:10 CET] <JEEB> although ffaac does have something to "probe" faac encoded streams, for example
[22:07:08 CET] <t4nk408> hi!
[22:07:40 CET] <t4nk408> i'm trying to stream videao with ffmpeg command
[23:05:03 CET] <sophie___> hello
[23:05:33 CET] <sophie___> i'm trying to stream with an ffmpeg command
[23:05:44 CET] <sophie___> and i've this message
[23:05:47 CET] <sophie___>  Too large number of skipped frames
[23:06:27 CET] <sophie___> i've put -framerate 30 in my command
[00:00:00 CET] --- Sat Mar  5 2016


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