[Ffmpeg-devel-irc] ffmpeg.log.20180731

[burek]

[01:10:38 CEST] <chrstphrchvz> Is `--enable-nonfree` *required* for encoding to ALAC? ALAC itself is a free codec; is there then a separate issue, e.g. with the usual MP4 wrapper format requiring `nonfree`?
[01:14:49 CEST] <BtbN> I don't see it in the EXTERNAL_LIBRARY_NONFREE_LIST.
[01:23:33 CEST] <DHE> `free` is relative. I think it's more of a GPL-(in)compatibility thing...
[01:59:09 CEST] <chrstphrchvz> BtbN: is it not in libfaac/libfdkaac? maybe it's already in libavcodec but haven't confirmed&
[02:00:05 CEST] <chrstphrchvz> DHE: the "free" at issue from what I was aware of was due to patents on AAC and/or MP4; ALAC is Apache 2.0, which I thought was GPL compatible
[02:04:58 CEST] <chrstphrchvz> Is there a table somewhere that shows which codecs support which formats (and whether both encoding/decoding or decoding only)?
[02:13:15 CEST] <DHE> fdk-aac does come with its own license as well. it's short and allows source redistribution, but does strike me as not being too friendly with the GPL
[02:15:51 CEST] <DHE> also ffmpeg labels it self as "nonfree and unredistributable" (emphasis on the last word) which is what happens for GPL violations. you can build your own abomination and use it, but you can't give it to anyone else.
[03:37:05 CEST] <Shibe> do i have to set the width/height of a codec context before i open it? can i change it after the codec context is initialized?
[08:03:24 CEST] <codebam> how can I piece together m4s (MPEG-4 Part 14 Transport Segments) segments with ffmpeg?
[08:08:31 CEST] <codebam> never mind, got it
[09:11:27 CEST] <Shibe> how can i increase the amount of keyframes my codec context should emit?
[09:22:25 CEST] <poutine> Is it unsafe to mix video encoded with different h264 presets? Do presets affect seek time at all?
[09:23:08 CEST] <poutine> when concatenating with -c copy
[09:27:20 CEST] <ganeshmundhe007> I have been using av_seek_frame to offset video at start, its working for .avi but not for mp4 and .wmv any reasons?
[09:28:13 CEST] <ganeshmundhe007> when i get frames on .mp4 video, frame->pts is always 0
[09:35:19 CEST] <ganeshmundhe007> any help?
[10:14:48 CEST] <Mihaylov_> Hello, I have a question, why does the video file not increase on transcoding until the ffmpeg process finishes? Does it store it in a temp folder and then moves it to the destination? i checked C:\Windows\Temp and %TEMP% and ffmpeg doesnt put anything there
[10:38:34 CEST] <c_14> poutine: should be safe
[10:38:37 CEST] <c_14> Mihaylov_: .mp4?
[10:39:11 CEST] <Mihaylov_> yes
[10:39:43 CEST] <c_14> you can't view (non-fragmented) .mp4 files until they've finished encoding because the index is written at the very end
[10:39:49 CEST] <c_14> you should still see the file size increase
[10:40:12 CEST] <Mihaylov_> Im recording with a gui overlay and sometimes recording is lost, my guess is that ffmpeg hangs or whatever happens, I tought of a timer that watches the file size
[10:40:21 CEST] <Mihaylov_> to alert the user that its not recording
[10:40:39 CEST] <Mihaylov_> (By recording I mean capturing from a declink card and transcoding to mp4)
[10:40:48 CEST] <c_14> best thing to do is to record to mkv or nut (which don't have that issue) and then remux to mp4 afterwards if you need to
[10:42:32 CEST] <TheAMM> There is some buffering going on with the muxing and writing
[10:42:55 CEST] <TheAMM> I've also noticed that on windows, the output filesize will stay still for long periods
[10:43:10 CEST] <TheAMM> On linux, writes seem to happen more often
[10:43:16 CEST] <Mihaylov_> I will check what a QFileInfo gives me if I give it the file path http://doc.qt.io/qt-5/qfileinfo.html
[10:43:23 CEST] <TheAMM> (not that I have any data on what muxers I was using etc)
[10:44:15 CEST] <ganeshmundhe007> I have been using av_seek_frame to offset video at start, its working for .avi but not for mp4 and .wmv any reasons?
[10:52:39 CEST] <Mihaylov_> QFileInfo works!!
[10:53:04 CEST] <Mihaylov_> just need to disable catching to refresh the info each time you request it http://doc.qt.io/archives/qt-4.8/qfileinfo.html#setCaching
[10:53:20 CEST] <Mihaylov_> Thats how I will check the file size of the transcoding video
[11:02:45 CEST] <BtbN> chrstphrchvz, aac is not alac.
[11:36:31 CEST] <killer> Hello FFMpeg User and Dev \o
[12:01:36 CEST] <john-soda> whois john-soda
[12:20:45 CEST] <ganeshmundhe007> when i get frames on .wmv video decode, frame->pts is always 0  any reasons?
[12:46:50 CEST] <Hola> Hello every one. When streaming to an RTMP server and as soon the video streaming finishes, ffmpeg throws an error Error writing trailer of rtmp://some-rtmp-server-address: End of file
[12:46:57 CEST] <Hola> what causes such error?
[12:48:19 CEST] <Hola> It occurs randomly
[12:51:54 CEST] <BtbN> what ffmpeg version and what configure line?
[12:53:43 CEST] <Hola> ffmpeg version 4.0.2-static
[12:54:01 CEST] <BtbN> that's only half the interesting information I asked for.
[12:54:03 CEST] <Hola> should i paste the configure line here as well
[12:54:03 CEST] <Hola> ?
[12:54:12 CEST] <BtbN> Well, does it have enable-librtmp in it?
[12:54:58 CEST] <Hola> no, it does not have
[12:56:15 CEST] <Hola> can librtmp effect such scenarios?
[13:01:33 CEST] <BtbN> I just recently made some changes to the librtmp code in ffmpeg, which I was suspecting to be the culprit.
[13:01:53 CEST] <BtbN> But if it's not enabled, you should be good
[13:02:34 CEST] <furq> BtbN: is there any reason to use librtmp over ffmpeg's internal rtmp stuff
[13:03:04 CEST] <BtbN> Not sure. I was getting weird hangs with both, and the fix for librtmp was obvious.
[13:03:18 CEST] <BtbN> the internel librtmp does properly handle EOF though
[13:04:08 CEST] <Hola> ok.
[13:04:17 CEST] <Hola> It seems it might be due to network time out
[13:04:41 CEST] <BtbN> well, if you finished streaming anyway, being EOF seems pretty normal?
[13:05:56 CEST] <Hola> Usually it does not throw such error when streaming is finished
[13:06:15 CEST] <Hola> but it throws randomly such errors.
[13:06:48 CEST] <BtbN> Can you do: ffmpeg.exe -help full | grep -i rtmp_swfhash
[13:06:56 CEST] <BtbN> If it shows that option, you for sure are not using librtmp
[13:07:46 CEST] <Hola> yes it shows -rtmp_swfhash      <binary>     .D....... SHA256 hash of the decompressed SWF file (32 bytes).
[13:08:31 CEST] <Hola> BtbN, Are you one of the contributor to ffmpeg?
[13:38:08 CEST] <Hola> what causes general pipe broken issue. I mean on a very general level what does it mean?
[13:52:49 CEST] <furq> Hola: in this case it means you tried to write to a socket and got SIGPIPE
[13:53:00 CEST] <furq> which generally means the remote end already closed the connection
[13:54:24 CEST] <Hola> Is there some sort of ffmpeg helper that can try to reconnect and start sending stream?
[13:55:36 CEST] <furq> you're already using the fifo muxer aren't you
[13:55:50 CEST] <furq> that's the only thing built into ffmpeg that would help
[13:55:58 CEST] <Hola> thats not working . tried to use latest master branch
[13:56:29 CEST] <Hola> It has bug I would say, as the normal example from wiki doesnt behave as it should
[14:08:25 CEST] <Hola> ok tried the fifo-muxer with mimicing the network disconnect situation for 15 seconds, and it tires to recover connection and fails with error " Packets are not in the proper order with respect to DTS"
[14:08:56 CEST] <Hola> mimicking
[14:08:59 CEST] <Hola> :)
[14:19:07 CEST] <atbd> hi, i'm currently transcoding some videos. They play well but start_time is false in vlc player (start at 20:36:00 to end 21:36:00) but right in mpv. I set start_time in AVStream and duration in AVFormatContext but it does not solve it. Some of you know what i missed please?
[14:43:24 CEST] <Mavrik> atbd: are your PTS values actually starting at 0 ?
[14:46:19 CEST] <atbd> no the original pts do not start at 0. By translating them to start at 0 i get the warning "non-monotically increasing pts" but it works. But i'd like to keep original pts/dts
[15:11:40 CEST] <barhom> Im having a weird issue that is probably unrelated to ffmpeg, but I thought I would ask before I dig deeper. Im having these live-transcodes (from http input) to h264 dying at exactly 86400seconds runtime. Is there some kind of limitation in the ffmpeg process that I should increase?
[15:12:24 CEST] <furq> are you muxing to mpegts
[15:12:40 CEST] <furq> or i guess is the input mpegts
[15:12:52 CEST] <furq> i vaguely know there are some issues with mpegts timestamp rollover but i don't know the specifics
[15:13:47 CEST] <barhom> furq: yes I am, input is mpegts and the output is a tee of mpegts UDP and HLS
[15:16:25 CEST] <atbd> the mpegts rollover is 26.5 hours
[15:17:04 CEST] <atbd> i have an issue with it and did not solve it yet
[15:18:01 CEST] <atbd> barhom: do you have any log from the process death?
[15:18:24 CEST] <barhom> atbd: I have the last 5 lines which didnt show enough information. Im re-running the process with -report now
[15:18:43 CEST] <barhom> so we will know in 24hrs
[15:22:58 CEST] <atbd> barhom: i should do the same
[15:36:16 CEST] <Anill> Hello ffmpeg devs
[15:38:42 CEST] <Anill> Can someone tell me how to do this: I have a audio file(length is 5 mints), an image and a h264 file. I want to create an MP4 of all but in MP4 for the starting 3 mint i want the image to be displayed and then rest 2 mint should be h264 file.
[18:19:15 CEST] <obserd282> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[18:19:15 CEST] <obserd282> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[18:19:18 CEST] <obserd282> I thought you guys might be interested in this blog by freenode staff member Bryan 'kloeri' Ostergaard https://bryanostergaard.com/
[18:19:21 CEST] <obserd282> or maybe this blog by freenode staff member Matthew 'mst' Trout https://MattSTrout.com/
[18:20:29 CEST] <obserd818> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[18:20:29 CEST] <obserd818> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[18:23:47 CEST] <rolig1522098> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[18:23:47 CEST] <rolig1522098> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[18:44:21 CEST] <letty121019> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[18:44:21 CEST] <letty121019> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[18:44:24 CEST] <letty121019> I thought you guys might be interested in this blog by freenode staff member Bryan 'kloeri' Ostergaard https://bryanostergaard.com/
[18:44:27 CEST] <letty121019> or maybe this blog by freenode staff member Matthew 'mst' Trout https://MattSTrout.com/
[18:45:04 CEST] <sawdey21> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[18:45:07 CEST] <sawdey21> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[18:45:11 CEST] <sawdey21> I thought you guys might be interested in this blog by freenode staff member Bryan 'kloeri' Ostergaard https://bryanostergaard.com/
[18:45:11 CEST] <sawdey21> or maybe this blog by freenode staff member Matthew 'mst' Trout https://MattSTrout.com/
[18:53:56 CEST] <18VAESHKI> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[18:54:00 CEST] <18VAESHKI> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[18:54:03 CEST] <18VAESHKI> I thought you guys might be interested in this blog by freenode staff member Bryan 'kloeri' Ostergaard https://bryanostergaard.com/
[18:54:07 CEST] <18VAESHKI> or maybe this blog by freenode staff member Matthew 'mst' Trout https://MattSTrout.com/
[19:24:06 CEST] <Liara-8> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[19:24:06 CEST] <Liara-8> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[19:29:19 CEST] <iw00t20> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[19:39:25 CEST] <Steinsplitter128> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[19:39:25 CEST] <Steinsplitter128> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[19:50:02 CEST] <iw00t1017> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[20:24:41 CEST] <RussellB280203> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[20:24:41 CEST] <RussellB280203> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[21:14:47 CEST] <steev11> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[21:33:37 CEST] <mcspud10> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[21:33:37 CEST] <mcspud10> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[21:48:24 CEST] <jercos164> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[21:48:24 CEST] <jercos164> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[21:49:51 CEST] <jercos7> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[21:54:19 CEST] <m712255> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[21:54:19 CEST] <m712255> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[21:54:28 CEST] <m7121529> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[22:03:54 CEST] <xunplini58> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[22:09:01 CEST] <mort2> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[22:09:09 CEST] <mort200> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[22:12:47 CEST] <DHE> wow they're getting persistent
[23:08:35 CEST] <kepstin> I heard that a lot of the spam was being relayed through embedded ssh proxies, and they got a tool to detect connections from broken systems like that and reject them. I guess the attacker must have found a new method in.
[23:23:37 CEST] <MobileMatt13> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[23:39:28 CEST] <Venusaur15> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[23:40:24 CEST] <Fenrirthviti> I think my fav part of this round is that it has no context and makes no sense.
[23:40:33 CEST] <Fenrirthviti> At least the previous rounds of spam were sort of coherent.
[23:43:06 CEST] <kepstin> I suspect they're trying to send multiple messages, but only get 1 in before they're killed.
[23:48:31 CEST] <planetmaker25> <+SP9002_ at efnet> so, he wants the win. so we're just gonna get lunch or something, then hes gonna push me to the ground and tap my ass with his foot so he can claim he "kicked my ass" tbh im going along with it becase I dont wanna lose any teeth
[23:48:32 CEST] <planetmaker25> With our IRC ad service you can reach a global audience of entrepreneurs and fentanyl addicts with extraordinary engagement rates! https://williampitcock.com/
[00:00:00 CEST] --- Wed Aug  1 2018