[03:09] <Zarxrax> how can i reencode a video using ffmpeg, and take softsubtitles and hardcode them into the new encode [03:09] <Zarxrax> im trying to avoid the extra step of first extracting the subtitle stream [03:27] <mark4o> Zarxrax: ffmpeg -i in.mp4 -vf subtitles=sub.srt out.mp4 [03:33] <Samus_Aran> is there some way to limit the max bitrate when using crf encoding? I tried -maxrate 15m, but it still went up to 80Mbps [03:33] <Samus_Aran> or is the only way to raise the crf? [03:34] <mark4o> Samus_Aran: you need both -maxrate and -bufsize [03:38] <Zarxrax> mark4o: im referring to using the subtitle file that is already present in the video file. is that the way to do it? [03:41] <mark4o> Zarxrax: oh sorry, you want to avoid extracting them to a file; hmm, I don't know that there is any way to do that [03:42] <Zarxrax> well, i guess i can extract them then [03:42] <Zarxrax> im just really lazy [03:44] <Samus_Aran> mark4o: how do I choose the buffer size? [03:45] <Samus_Aran> I'm encoding PNG animation frames, 1080p/30 [03:48] <mark4o> Samus_Aran: -maxrate is the maximum rate over some period, specified by -bufsize. Wherever you got the -maxrate you are using should also specify a size or duration. [03:49] <Samus_Aran> I just don't want the maximum bitrate to spike beyond 15Mbps, as my laptop is slow [03:52] <mark4o> Samus_Aran: try -bufsize 4M [04:09] <Samus_Aran> mark4o: will try, thanks. [04:18] <ExceptionlCatch> hello, i'm new and still finding out about max_analyze_duration reached [04:18] <ExceptionlCatch> it happens when playing the file in ffplay and i can't tell whether its benign or a problem [04:19] <ExceptionlCatch> i tried convertnig the wav to an mp3 but playing the mp3 still has that message [05:32] <Zeranoe> Does ffmpeg's http protocol require a server to stream? I know VLC offers a HTTP streaming option, does that run a server too? [13:36] <burek> can anyone suggest what could be wrong with this: http://pastebin.com/aVVzyYzU [13:38] <durandal_1707> why is - used for -i ? [13:53] <ubitux> burek: -f h264 ? [13:53] <ubitux> durandal_1707: stdin [13:53] <ubitux> ah wait ok [13:53] <ubitux> burek: -r as output option i guess [14:02] <burek> i guess -r specifies the input frame rate [14:02] <burek> since it's a stdin [14:03] <burek> wait http://ffmpeg.gusari.org/viewtopic.php?f=16&t=1100&p=2727 [14:03] <burek> that's the original post [14:03] <burek> there is an example without -r at all [14:03] <burek> experiencing the same issue [14:20] <burek> I can't even understand what does this guy talk about http://ffmpeg.gusari.org/viewtopic.php?f=16&t=1092 :( [14:43] <ubitux> burek: i see -r 25 as input option as well here [14:43] <ubitux> i think it's supposed to be set as output optoin [14:43] <ubitux> (or not at all?) [15:30] <burek> ubitux, in his 1st cmd line, there was no -r for input [15:30] <burek> pi@raspberrypi ~/ffmpeg $ raspivid -vf -t 0 -w 450 -h 200 -fps 25 -b 2000000 -o - | ffmpeg -i - -c:v libx264 -vcodec copy -f h264 -loglevel debug test.mp4 [15:30] <burek> but he still got "[h264 demuxer @ 0x31be320] Unable to parse option value "25" as video rate" [15:47] <ubitux> burek: the error wasn't the same afaict [16:20] <fling> I have a bunch of videos from a security cam. [16:20] <fling> I want to only keep parts of video with movement [16:28] <durandal_1707> fling: so you need some kind of movement detection filter? [16:29] <fling> durandal_1707: yes ;P [16:29] <durandal_1707> there is no such thing (yet) in libavfilter [16:29] <fling> durandal_1707: I may convert everything to images and just drop similar frames [16:29] <fling> durandal_1707: but I want to keep sound [16:41] <willvarfar> can ffmpeg transcode a video from an mp4 file passed over stdin before the moov is received? [16:41] <durandal_1707> no [16:42] <willvarfar> what general approaches are there to consuming mp4 that hasn't yet got the moov? [16:43] <ubitux> chunked mp4 [16:43] <ubitux> ah, as input [16:43] <ubitux> you can't [16:44] <willvarfar> hmm tricky then. I can get an android phone to record h264 in mp4 and send it straight to my server live, [16:45] <willvarfar> but on the server I can't do anything with it until its stopped anyway, making it not live after all. [16:46] <ubitux> send chunked mp4 [16:46] <ubitux> or just use another container [16:48] <willvarfar> yes on android the pick seems limited [16:53] <willvarfar> thx. [18:17] <diroots> hi all [19:21] <xlinkz0> can i make ffserver stream copy from feed to stream? [19:25] <ezekiel> I'm not entirely sure what you're asking, but I'll guess - ffserver will try to do as little transcoding as possible, if I recall correctly [19:25] <ezekiel> so if your OUTPUT parameters are similar/same to your input feed, then it's not going to transcode [19:25] <xlinkz0> i don't want it to transcode at all [19:26] <xlinkz0> ok [22:16] <Mista_D> Trying to read a redirected STD and ERR out from a file. tail -f is working, but tail with grep and cut are not. [23:48] <alesan> hi I have some full HD movies 60fps that I would like to reduce to 1280x710 and 30fps, keeping the audio and if possible other parameters similar [23:49] <alesan> so far I've found ffmpeg -i $i -vf scale=1280:-1 small/$i [00:00] --- Sat Oct 12 2013