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January 2016

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ffmpeg-devel.log.20151231
by burek 01 Jan '16

01 Jan '16

[00:17:12 CET] <kierank> nevcairiel: is there any easy way to get yuv out of directshow [00:19:30 CET] <nevcairiel> manually once, or automated? [00:20:10 CET] <nevcairiel> but its not hard, most directshow decoders would just output it [00:20:28 CET] <nevcairiel> just need to chain some sort of file writer after the decoder [00:21:26 CET] <kierank> manually [00:21:58 CET] <Daemon404> graphedit/graphstudio -> insert filewriter [00:23:09 CET] <kierank> pfft effort [00:25:04 CET] <nevcairiel> you could try to go fancy and use an actual muxer, otherwise you need to use a raw yuv source in ffmpeg to read it [01:37:49 CET] <cone-234> ffmpeg 03Rostislav Pehlivanov 07master:8de5b0d96664: dirac_dwt: remove unnecessary undefs [02:09:15 CET] <cone-234> ffmpeg 03Thomas Mundt 07master:73ce8162f349: avfilter/vf_scale: set proper out frame color range [05:40:08 CET] <cone-977> ffmpeg 03Ganesh Ajjanagadde 07master:b492fbcc6e87: lavc/dsd_tablegen: always generate tables at runtime [06:58:17 CET] <kierank> why have I got no email from ganesh [06:58:43 CET] <kierank> ah comes up in libav [09:15:36 CET] <cone-896> ffmpeg 03Paul B Mahol 07master:416090089909: avfilter/trim: support all channel numbers in atrim filter [09:17:58 CET] <durandal_1707> ubitux: ping [09:29:12 CET] <ubitux> durandal_1707: pong [09:29:23 CET] <ubitux> durandal_1707:thx for the screenshot [10:37:00 CET] <durandal_1707> ubitux: so its ok? [10:37:43 CET] <ubitux> probably [11:05:20 CET] <kurosu> hi [11:06:46 CET] <durandal_1707> Hi [11:46:07 CET] <cone-896> ffmpeg 03Paul B Mahol 07master:b98c58573b0e: avfilter/avf_showspectrum: add fire color map [12:37:29 CET] <cone-896> ffmpeg 03Paul B Mahol 07master:15e1fd9883b4: avfilter/avf_showspectrum: add window overlap support [12:45:39 CET] <Franciman> Hello [13:03:20 CET] <Franciman> If I want to produce a waveform from a file containing audio, what's the preferred way? [13:04:14 CET] <Franciman> I need to show it in a QPixmap with Qt [13:04:56 CET] <J_Darnley> See the page linked by the bot just above you. [13:06:08 CET] <Franciman> J_Darnley, yes I already saw them, but I am not sure how to use libavfilter [13:06:27 CET] <Franciman> and also how to output something I can convert to a QPixmap [13:06:52 CET] <J_Darnley> I don't know what that is but now I guess you mean using the API [13:07:06 CET] <Franciman> yes, the API [13:07:16 CET] <fritsch> for QPixmap, create a QImage from the e.g. RGBA data you get from ffmpeg after decoding [13:07:23 CET] <fritsch> and then create the Pixmap from the QImage [13:07:38 CET] <Franciman> k, and what if the audio has multiple channels? [13:07:47 CET] <fritsch> what has audio to do with a Pixmap? [13:08:03 CET] <Franciman> no nothing, I was just trying to say I want to use the API [13:08:23 CET] <fritsch> did you ever read a bit into the api at all? [13:08:27 CET] <Franciman> yes [13:08:32 CET] <Franciman> but I don't quite understand that [13:08:38 CET] <fritsch> then I don't understand your question [13:09:11 CET] <Franciman> I want to create a waveform from an audio stream [13:09:36 CET] <Franciman> so I should use the filter, right? [13:10:24 CET] Action: J_Darnley should sell his vis library right about now. [13:16:06 CET] <Franciman> *filters [13:17:42 CET] <Franciman> Now the point is that I don't know how to use the libavfilter lib, and I have found very few examples of its usage [13:44:48 CET] <durandal_1707> J_Darnley: what it does? [13:45:22 CET] <J_Darnley> Its the port of Winamp's AVS that I've been laziliy working on for18 months [14:01:56 CET] <durandal_1707> Franciman: see how ffmpeg do filter complex? [14:02:33 CET] <Franciman> uhm ok thanks [14:02:49 CET] <Franciman> where can I find the code? [14:06:46 CET] <durandal_1707> source.ffmpeg.org [14:07:07 CET] <Franciman> ty [14:07:08 CET] <durandal_1707> Probably better write example [16:47:50 CET] <cone-896> ffmpeg 03erankor 07master:3f8564fe3c68: avformat/mov: support cenc (common encryption) [17:06:17 CET] <j-b> and again. [17:21:13 CET] <wm4> again? [17:32:01 CET] <cone-896> ffmpeg 03Andreas Cadhalpun 07master:7ea2db6eafa0: mjpegdec: extend check for incompatible values of s->rgb and s->ls [17:41:37 CET] <Daemon404> wm4, its been committed before [17:41:42 CET] <Daemon404> probably broken [17:41:47 CET] <Daemon404> revert, and committed again? [17:41:53 CET] <Daemon404> plus j-b hates drm. [17:45:21 CET] <KGB> [13FFV1] 15dericed closed pull request #16: Typos and cleanup (06master...06typos-and-cleanup) 02http://git.io/vRtUs [17:49:21 CET] <cbsrobot> probably j-b does not like anonymous commits [18:06:37 CET] <JEEB> Daemon404: I think that was the decryption patch [18:06:45 CET] <JEEB> the commit message is eerily the same [18:06:45 CET] <JEEB> lol [18:10:53 CET] <Daemon404> o [18:10:56 CET] <Daemon404> yeah... [18:11:04 CET] <Daemon404> my bad [20:51:54 CET] <michaelni> the email address of erankor contains his full name ... [21:42:33 CET] <J_Darnley> Does anyone know of a "simple english" explaination for avx2's vgather instructions? [21:43:59 CET] <nevcairiel> from that i've been told, the gather instructions are not particularly interesting since they are not faster than scalar loads [21:44:51 CET] <J_Darnley> ah [21:45:17 CET] <nevcairiel> i suppose there might be use-cases where they can help [21:45:32 CET] <nevcairiel> but usage of such instructions is always ... tricky [21:46:28 CET] <J_Darnley> loading might not be faster but if you can save time on arithmetic it might be useful [21:55:51 CET] <jamrial> gcc generates vectorized code with them, so assuming they are making the cost decisions right, there are some situations where they may be a good choice [23:07:05 CET] <J_Darnley> Hehe. I think I found an infinite loop bug in yasm. [23:07:35 CET] <J_Darnley> It appeared to get stuck if I didn't declare my temp registers [23:43:22 CET] <TD-Linux> bayer cineform? weird [00:00:00 CET] --- Fri Jan 1 2016

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ffmpeg.log.20151231
by burek 01 Jan '16

01 Jan '16

[00:03:11 CET] <furq> what just happened [09:20:42 CET] <Wiesel> Hey all, I have IP-Cam which streams an RTSP-Stream into my network. I want to convert this Stream to an webm Stream. Therefore I have configurated my ffserver.conf. But I don't really know how the command should looks like. Can you please help me? Thanks in advance. [11:05:13 CET] <Guest93102> Hi i have some questions about ffmpeg (how remove some warnings), can someone help or point me to some info? [11:10:21 CET] <Guest93102> i can't understand this warning: Side data: unknown side data type 10 (24 bytes) [11:10:28 CET] <Guest93102> while using libx264 [11:10:43 CET] <Guest93102> i have found htis link https://ffmpeg.org/doxygen/trunk/vf__showinfo_8c_source.html [11:10:55 CET] <Guest93102> but i have no idea how to remove that warning [11:11:43 CET] <Guest93102> other thing that is more important is "100 buffers queued in output stream 0:1, something may be wrong." [11:12:01 CET] <Guest93102> followed by "Queue input is backward in time" (repeated many times) [11:12:04 CET] <Guest93102> this from libvorbis [16:21:00 CET] <volar> hi all [16:21:09 CET] <volar> can anybody help me? [16:21:58 CET] <volar> I try to convert a video to mp4 in asp.net using ffmpeg [16:22:17 CET] <volar> I use a process [16:22:23 CET] <volar> my arguments are [16:22:24 CET] <volar> p.StartInfo.Arguments = String.Format("-i ""{0}"" -b 1500k -vcodec libx264 -s 640x360 ""{1}""", strInput, strOuput) [16:22:49 CET] <volar> I have problems using vcodec libx264 [16:23:28 CET] <volar> p.StartInfo.Arguments = String.Format("-i ""{0}"" -b 1500k -vcodec libx264 -s 640x360 ""{1}""", strInput, strOuput) [16:23:36 CET] <volar> hi [16:24:42 CET] <volar> anybody can help here? [16:25:01 CET] <volar> any awaken people? [16:25:40 CET] <c_14> Pastebin your complete console output [16:26:26 CET] <volar> FFmpeg version SVN-r18639, Copyright (c) 2000-2009 Fabrice Bellard, et al. [16:26:26 CET] <volar> configuration: --enable-memalign-hack --enable-postproc --enable-gpl --enable-libfaac --enable-libfaad --enable-libgsm --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libx264 --enable-libxvid --disable-ffserver --enable-avisynth --enable-pthreads [16:26:26 CET] <volar> libavutil 50. 3. 0 / 50. 3. 0 [16:26:26 CET] <volar> libavcodec 52.27. 0 / 52.27. 0 [16:26:26 CET] <volar> libavformat 52.32. 0 / 52.32. 0 [16:26:54 CET] <volar> Did I paste well here? [16:26:58 CET] <c_14> upload to a pastebin service [16:27:04 CET] <c_14> don't paste into the channel [16:27:12 CET] <volar> okis [16:27:28 CET] <volar> what is pastebin service? [16:28:03 CET] <relaxed> pastebin.com [16:28:04 CET] <c_14> pastebin.com ix.io sprunge.us pastie.org etc [16:28:11 CET] <volar> thanks [16:28:32 CET] <volar> I will try pastebin.com [16:29:23 CET] <volar> I am in this page, pastebin.com [16:29:36 CET] <volar> what to do next, please? [16:29:46 CET] <volar> I have to solve it today? [16:30:07 CET] <c_14> Just paste the text into the "New Paste" box and press "Create New Past" [16:30:22 CET] <c_14> Also, I just noticed but >FFmpeg version SVN-r18639 [16:30:26 CET] <c_14> Your version of FFmpeg is ancient [16:30:33 CET] <c_14> you should update [16:31:07 CET] <volar> What is the lastest version? [16:31:26 CET] <volar> I paste in pastebin [16:31:26 CET] <fritsch> www.ffmpeg.org [16:31:31 CET] <volar> okis [16:32:21 CET] <c_14> volar: after you press "create new paste" it should forward you to the your paste. copy the url and paste the url here [16:32:37 CET] <volar> okis [16:32:41 CET] <volar> I go there [16:34:47 CET] <volar> http://pastebin.com/w3MU6c5Q [16:34:52 CET] <volar> is it the url? [16:35:00 CET] <volar> it is shown in the broser [16:35:02 CET] <c_14> yep [16:35:05 CET] <volar> okis [16:35:08 CET] <fritsch> nice 6 years old [16:35:16 CET] <volar> wow [16:36:19 CET] <c_14> >Unable to find a suitable output format for 'ûvcodec' [16:36:27 CET] <c_14> check for random unicode characters in your argument list [16:36:43 CET] <c_14> That, or rewrite it from scratch [16:37:43 CET] <volar> I am reviewin my argumente [16:37:48 CET] <volar> arguments [16:38:31 CET] <volar> this is my arguments [16:38:34 CET] <volar> p.StartInfo.Arguments = String.Format("-i ""{0}"" -b 1500k -vcodec libx264 -s 640x360 ""{1}""", strInput, strOuput) [16:38:47 CET] <volar> no unicode characters [16:39:20 CET] <fritsch> strOuput <- [16:39:30 CET] <volar> okis, sorry, I forgot to paste in pastebin [16:39:49 CET] <volar> it has spaces in the path [16:39:56 CET] <volar> any problem with that? [16:40:02 CET] <fritsch> you write that code :-) [16:40:04 CET] <fritsch> not we [16:42:19 CET] <volar> strOuput = Server.MapPath("../Anucios_publico/") &"ejemplo.mp4" [16:42:34 CET] <volar> Can't I put server.mappath? [16:42:37 CET] <volar> in asp.net [16:42:50 CET] <volar> it is putting a \ [16:43:09 CET] <volar> strOuput = Server.MapPath("../Anucios_publico/") & "ejemplo.mp4" [16:45:14 CET] <volar> I will paste in pastebin [16:47:18 CET] <volar> http://pastebin.com/L5uKQPv6 [16:47:37 CET] <volar> thanks for the patience [16:48:17 CET] <volar> can u help me, please? [16:49:34 CET] <fritsch> no idea what the & means in asp.net behind the Server.MapPath [16:49:43 CET] <fritsch> but this is for sure not an asp.net beginner's channel [16:50:00 CET] <volar> it is a character for union [16:50:03 CET] <volar> okis [16:50:08 CET] <volar> thanks [16:50:39 CET] <fritsch> a character for union? [16:50:44 CET] <fritsch> you sure you don't need just "+" there? [16:51:00 CET] <volar> I will try [16:51:22 CET] <volar> it is & or + [16:53:09 CET] <volar> and is it ok if i use \ in the path? [16:53:26 CET] <fritsch> it's windows after all [16:53:32 CET] <fritsch> directory path handling sucks [16:53:43 CET] <fritsch> sometimes they use C:/whatever/whatever/whatever [16:53:53 CET] <fritsch> or C:\\whatdo\\Iknow\\ [16:55:11 CET] <volar> okis [16:56:48 CET] <volar> Another user tried the same code [16:56:58 CET] <volar> he told he has the same problem [16:57:17 CET] <volar> the file stroutput is not created [16:57:32 CET] <volar> and the log is that i said [17:09:41 CET] <fritsch> yeah - and the good thing all that has nothing to do with ffmpeg :-) [18:28:51 CET] <volar> I don't know whah [18:28:57 CET] <volar> why fails it [18:33:17 CET] <volar> http://pastebin.com/aCwC6Am5 [18:33:32 CET] <volar> can u see that code? [18:33:49 CET] <volar> I am trying to use ffmpeg in asp.net [18:34:22 CET] <volar> I don't see any character non unicode [18:34:37 CET] <volar> My output file is not generated [18:35:12 CET] <volar> can u help me? [18:36:38 CET] <volar> please [18:37:45 CET] <waressea1cher2> volar: geht's es dir gut ? [18:39:21 CET] <volar> english [18:39:29 CET] <volar> can u talk in english? [18:39:37 CET] <volar> thanks [18:39:42 CET] <volar> TIA [18:40:41 CET] <waressea1cher2> volar: ich will deutsch sprähen [18:40:49 CET] <volar> okis [18:41:08 CET] <volar> here we talk in english [18:41:19 CET] <volar> I understand little germa [18:41:21 CET] <volar> n [18:41:42 CET] <volar> I am spanihs [18:41:51 CET] <volar> new in this channel [18:42:18 CET] <fritsch> volar: don't care about him, he / she / it spams everyone from time to time - he cannot help you [18:42:34 CET] <volar> okis [18:43:19 CET] <volar> I can't figure out what happens with the commands in asp.net [18:43:27 CET] <fritsch> now go back to your asp program and print out the strings separately, and have a read here: http://stackoverflow.com/questions/10501599/define-stdstring-in-c-without-e… [18:43:31 CET] <fritsch> second answer [18:43:56 CET] <volar> okis [18:43:59 CET] <volar> thanks [18:45:25 CET] <waressea1cher2> fritsch: so unhöflich [18:45:42 CET] <fritsch> waressea1cher2: this is now the 50th time you spam people that search for help in here [18:45:48 CET] <fritsch> if anything is "unhöflich" then you are [18:46:32 CET] <waressearcher2> fritsch: deutsch bitte [18:46:54 CET] <fritsch> this is an english channel, if that's a problem for you - work with google translater [18:48:21 CET] <Mavrik> Stop figting with a troll. [18:48:28 CET] <Mavrik> ubitux, mind getting rid of it? :) [18:48:45 CET] <fritsch> Mavrik: hehe, you are right (just seen him now too often) [19:06:22 CET] <volar> why fails it [19:34:16 CET] <YairNet> Hi , Any can help here? [19:37:23 CET] <volar> yes [19:37:26 CET] <volar> tell us [19:37:32 CET] <volar> hi [19:38:16 CET] <Logicgate> Has llogan been around [19:39:31 CET] <YairNet> Unknown encoder 'libx264' but ssh command 'x264 --help' work... [19:39:54 CET] <YairNet> I come here [19:39:54 CET] <YairNet> Long after Google Search [19:40:26 CET] <BtbN> ffmpeg does not use x264 via cli, and even if it did, you'd still have to compile it with support for it. [19:41:14 CET] <volar> what CLI stand for? [19:41:25 CET] <volar> common languague? [19:42:31 CET] <thereh> I have 1 minute video, its frame rate is 29.970, I converted it into images: "ffmpeg -i 1.avi -c:v png images/%5d.png" and got 1889 png images, then I converted video to frame rate 23.976, and after that converted it to images again, and got the same 1889 png images, so how two video thats frame rate differs 20% contain the same amount of frames ? [19:43:39 CET] <thereh> also when I converted it from 29.970 to 23.976 the video became jittery, but still contains same amount of frames [19:43:40 CET] <volar> okis [19:44:04 CET] <YairNet> if i try configure i have error "ERROR: libx264 not found" (Centos 7) [19:44:34 CET] <volar> then how to convert a video to .ogg? [19:44:38 CET] <BtbN> thereh, why would the framerate affect the total amount of frames? [19:45:05 CET] <BtbN> Even if it was a 1000 fps video, it'd still be the exact same [19:55:03 CET] <YairNet> BtbN; if i try configure (--enable-libx264) i have error "ERROR: libx264 not found" (Centos 7) [20:01:22 CET] <c_14> YairNet: you might need libx264-dev or something (whatever package on your system provides x264.pc) [20:03:21 CET] <thereh> BtbN: there is a problem, I got 2 different videos one with 29.970 and 23.976, then cut two pieces piece_29 and piece_23 from both then converted piece_23 to png images and reassembled some images I needed into video again with 29.970 framerate and call it piece_23_to_29 so now two pieces I need are 29.970 framerate, then I concatenated piece_29 and piece_23_to_29, and it look smooth enough, then I uploaded it on youtube then downloaded it from youtube to chec [20:03:47 CET] <thereh> from youtube to check how it plays, if youtube's system made it worse or something and discovered that second half of the video from piece_23_to_29 is very jittery, so why is that and how to come around it ? should I average those pieces both to 23.976 framerate ? [20:05:26 CET] <YairNet> c_14: http://pastebin.com/qx0TtthC its not include x264-dev? [20:05:57 CET] <c_14> YairNet: did you make sure to export PKG_CONFIG_PATH ? [20:06:01 CET] <c_14> (before running configure) [20:09:18 CET] <YairNet> --prefix="$HOME/ffmpeg_build" --extra-cflags="-I$HOME/ffmpeg_build/include" --extra-ldflags="-L$HOME/ffmpeg_build/lib" --bindir="$HOME/bin" [20:10:05 CET] <c_14> export PKG_CONFIG_PATH="$PKG_CONFIG_PATH:$HOME/ffmpeg_build/lib/pkgconfig" [20:10:08 CET] <c_14> then run configure again [20:13:12 CET] <YairNet> not fix :( [20:13:49 CET] <c_14> Does $HOME/ffmpeg_build/lib/pkgconfig/x264.pc exist? [20:14:16 CET] <YairNet> no :O [20:15:18 CET] <thereh> BtbN: actyally I only now noticed the entire video from youtube is in 15 framerate, why would youtube do that ? it was 29.970 when I uploaded it [20:19:46 CET] <c_14> YairNet: did you make install x264? [20:23:04 CET] <Logicgate> llogan! [20:29:24 CET] <YairNet> c_14; if i make normgal configure for x264 i have error: http://pastebin.com/xg8zqh09 [20:30:24 CET] <c_14> --disable-lavf [20:33:36 CET] <YairNet> I've done it already I will try again [20:39:43 CET] <volar> which vcodec to use to convert to .ogg? [20:41:11 CET] <YairNet> c_14, ok now all ok tank you very much, you can give me basic guide for resize movie file (mp4,3gp...) [20:42:02 CET] <c_14> https://trac.ffmpeg.org/wiki/Scaling%20(resizing)%20with%20ffmpeg [21:08:27 CET] <YairNet> c_14: after finsh configure (no erros) but if i run ffmpeg resize give me again error: Unknown encoder 'libx264' [21:09:19 CET] <YairNet> http://pastebin.com/uj2fn43J [21:15:05 CET] <llogan> your configure line is blank. it needs --enable-gpl --enable-libx264 to use encoder libx264 [21:15:49 CET] <llogan> why are you using all of those x264 options instead of simply using an encoding preset? [21:16:42 CET] <llogan> just get a static build and use it instead: http://johnvansickle.com/ffmpeg/ [21:19:57 CET] <YairNet> llogan: http://pastebin.com/zNDJhaUB (not blank) [21:20:50 CET] <llogan> make sure you're executing the correct binary [21:20:56 CET] <llogan> you may have several ffmpeg installed [21:29:04 CET] <YairNet> how i select binary [21:29:58 CET] <YairNet> binary = file run ? [21:32:36 CET] <YairNet> how i chack on command if x264 load? [21:33:43 CET] <llogan> /full/path/to/ffmpeg -i [21:35:56 CET] <YairNet> ok # cp /root/ffmpeg-2.8.4/ffmpeg /usr/local/bin/ffmpeg - fix problem but now new problem :D Unknown encoder 'libfaac' [21:36:17 CET] <YairNet> what i need to install [21:39:09 CET] <llogan> libfaac is garbage, and you didn't compile ffmpeg to use it (no --enable-libfaac). use "aac" or "libfdk_aac" [22:01:48 CET] <Buster> Happy New Year!!! [22:12:26 CET] <YairNet> LLOGAN: http://pastebin.com/epJCaS3S [23:11:06 CET] <volar> happy new year [23:32:23 CET] <volar> hi all again [23:41:32 CET] <YairNet> i resize file on this command (ffmpeg -i input.mp4 -s 640x352 -preset ultrafast output.mp4) make me 80MB to 19MB i need more reisze meximum 16M what i can more to do? [23:44:04 CET] <fritsch> YairNet: add -crf 50 [23:44:35 CET] <c_14> If you have a maximum filesize, use -b:v (assuming you know the length) [23:44:43 CET] <fritsch> jep that's better [23:55:42 CET] <YairNet> fritsch Quality too low (MB2.73) [23:57:00 CET] <YairNet> c_14: you can give me full command plz? [00:00:00 CET] --- Fri Jan 1 2016

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