[00:20:52 CEST] <rjp421> http://www.streamingmedia.com/conferences/East2015/StreamingLive.aspx [00:25:10 CEST] <lord-carlos> "Thread message queue blocking; consider raising the thread queue size option (current value: 8)" <-- What would be a good value? Encoding 1440p tiff files with x264 for youtubes [00:27:50 CEST] <lord-carlos> -thread_queue_size 512 seems to work. But I have no idea what it does [01:16:06 CEST] <bawNg> Hey guys, I take it there isn't some magic solution to increasing the gdigrab frame rate on a system with an ancient graphics card [01:16:52 CEST] <bawNg> I've tried just about everything, including an alternative dshow filter, and I can't get more than about 7 FPS captured from a browser canvas running at 60 FPS [01:27:07 CEST] <bawNg> Does anyone have any other ideas on how I can capture at least 20 frames per second from a HTML5 canvas, on an almost headless server? [02:24:04 CEST] <Sazpaimon_> how can I use ffmpeg to decode a file in real time such that the decode takes as long as the video [02:24:10 CEST] <c_14> -re [02:27:23 CEST] <Sazpaimon_> yeah, that's it, thanks [03:00:53 CEST] <maslen> Sazpaimon_: What's the use case where that's necessary? [03:12:57 CEST] <bawNg> Is there any way to read sequential images as input in real time, if the frame rate is not perfectly consistent? It would be nice if there was a proper way to sync ffmpeg in this case [03:15:22 CEST] <bawNg> I've managed to capture between 18 and 23 frames per second from a HTML5 canvas and write them to the sandboxed webkit file system as PNG images, but now I need to be able to convert them into a real time stream, with as little latency as possible [03:16:12 CEST] <c_14> If the framerate isn't constant, you'll have issues. [03:17:30 CEST] <bawNg> Is there any half sane workaround in this case? [03:18:38 CEST] <c_14> You might be able to use the creation times as a source for the pts, but that would require either heavy scripting or direct use of the api. [03:21:55 CEST] <bawNg> I'm hoping to avoid having to use the API directly, as this is not a serious project, but rather a 2 day hack job [03:22:01 CEST] <bawNg> For proof of concept at least [03:22:38 CEST] <bawNg> How could I get ffmpeg to use timestamps for frames without using the API? [03:23:55 CEST] <c_14> The only other way I could think of would be to duplicate/drop frames until the input framerate is constant. [03:24:04 CEST] <c_14> Which you would need a script for. [03:24:41 CEST] <bawNg> I see, that isn't ideal, but could work [03:25:05 CEST] <bawNg> I'll need to do scripting to pull the images out of the webkit sandboxed file system anyway [03:25:25 CEST] <bawNg> I could use the file creation timestamps as reference [03:31:09 CEST] <Nemo377307289> Hi everybody [03:31:14 CEST] <Nemo377307289> Could ffmpeg add rotating animation for watermark picture? [03:31:14 CEST] <Nemo377307289> I means, let the watermark 3D rotate 360 degree, then show the watermark in a fixed position. [03:31:15 CEST] <Nemo377307289> Thanks a lot. [03:36:42 CEST] <Sazpaimon_> maslen, i want to stream a playlist of webm files to icecast using ezstream, but ezstream doesn't support timing data for webm, only theora, so I need to stream data to it in realtime [03:38:34 CEST] <houdini> hey can i ask a question ? [03:38:46 CEST] <houdini> how can i scale my video into this http://prntscr.com/7487in [03:39:30 CEST] <c_14> hmm? [03:41:21 CEST] <c_14> What exactly are you trying to do? [03:43:35 CEST] <houdini> trying to create outro for my youtube channel [03:43:49 CEST] <c_14> Not that, what do you mean with scale your video into this? [03:45:05 CEST] <houdini> i mean video will play on video in tv player [03:45:22 CEST] <c_14> Do you want to put the video where the black part of that picture is? [03:45:29 CEST] <c_14> Ie overlay the video onto the black part of the picture? [03:45:53 CEST] <houdini> yeah [03:46:00 CEST] <houdini> that's what i want [03:46:36 CEST] <c_14> Ok, about the scaling part. Is the picture a fixed size and you want to make the viedo smaller/larger to match or do you want the video to stay its own size and make the picture bigger/smaller to match. [03:47:38 CEST] <houdini> video stay own size [03:48:04 CEST] <houdini> sorry for english [03:48:15 CEST] <houdini> english is not my native language [03:52:00 CEST] <c_14> ffmpeg -i picture -i video -filter_complex '[0]scale={video_width+distance from edge of picture to black bar}:{video_height+distance from top of picture to black bar}[m];[m][1:v]overlay=(W-w)/2:(H-h)/2[v]' -map '[v]' -map 1:a out.mkv [03:52:02 CEST] <c_14> should do it [03:52:14 CEST] <houdini> ty trying [03:52:26 CEST] <c_14> you have to replace the things in the {} with what I described [03:52:56 CEST] <c_14> And that only works if the black box is centered vertically and horizontally [03:54:01 CEST] <houdini> oh, lets say i want to do it left top side of the video [03:54:05 CEST] <houdini> how can do it [03:55:27 CEST] <c_14> You mean the black box is in the top left corner of the video? [03:57:06 CEST] <houdini> yeah [03:59:17 CEST] <c_14> Then just get rid of the (W-w)/2:(H-h)/2 part [04:00:52 CEST] <c_14> and make sure you scale to video_width+pixels from right of picture to box:video_height+pixels from bottom of picture to box [04:04:33 CEST] <houdini> I'll do then fine account. [04:05:09 CEST] <houdini> lets say 200px witdh 150px heigh [04:05:28 CEST] <houdini> the code will be ? [04:05:56 CEST] <c_14> The video is 200x150? [04:05:59 CEST] <houdini> video will be smaller [04:06:23 CEST] <houdini> no video is 840x480 [04:06:31 CEST] <houdini> picture is 1280x720 [04:07:17 CEST] <c_14> ffmpeg -i picture -i video -filter_complex '[0]scale=1480:870[m];[m][1:v]overlay[v]' -map '[v]' -map 1:a out.mkv [04:07:18 CEST] <houdini> lets say i have video 1280x720 and picture 1280x720 [04:09:11 CEST] <houdini> it didnt work i think [04:09:18 CEST] <houdini> because it say 0.1 fps [04:09:28 CEST] <houdini> and rendering very fast [04:09:42 CEST] <c_14> hmm? [04:10:17 CEST] <houdini> give me a minute [04:10:24 CEST] <houdini> ill explain what i want [04:11:39 CEST] <c_14> Eh, I forgot something. [04:11:54 CEST] <c_14> ffmpeg -loop 1 -i picture -i video -filter_complex '[0]scale=1480:870[m];[m][1:v]overlay=shortest=1[v]' -map '[v]' -map 1:a out.mkv [04:13:23 CEST] <houdini> i think this is wroking [04:13:28 CEST] <houdini> working* [04:15:47 CEST] <houdini> yeah that works ty [04:16:08 CEST] <houdini> but can i ask another question about it [04:17:26 CEST] <houdini> video is upper left. I want to shift a little to the right video. ill add px to width? will be work ? [04:18:04 CEST] <houdini> oh crap video size is 1480:870 [04:18:13 CEST] <c_14> overlay=x={distance you want to shift to the right}:shortest=1 [04:18:20 CEST] <houdini> i want 1280x720 same size [04:18:30 CEST] <houdini> video can be small [04:18:36 CEST] <houdini> sorry for bad understandig [04:22:14 CEST] <houdini> i want to resize video down to fit into blackbox [04:22:54 CEST] <houdini> then making the video placements [04:23:38 CEST] <c_14> You want to make the video smaller? Not the picture bigger? [04:23:56 CEST] <houdini> yeah [04:24:34 CEST] <houdini> the original video size is 1280x720 we can make it 840x480 and than overlay on image [04:24:52 CEST] <houdini> image is 1280x720 [04:25:10 CEST] <houdini> so output video will be 1280x720p [04:25:38 CEST] <c_14> ffmpeg -loop 1 -i picture -i video -filter_complex '[1:v]scale={width}:{height}[o];[0][o]overlay=shortest=1[v]' -map '[v]' -map 1:a out.mkv [04:25:53 CEST] <c_14> Where width is the width of the black box, and height is the height of the black box [04:29:09 CEST] <houdini> video plays upper left on image [04:29:16 CEST] <houdini> if i want to shift right [04:29:32 CEST] <c_14> overlay=x={pixels to shift right}:shortest=1 [04:30:12 CEST] <houdini> overlay=x=300=y=200:shortest=1 [04:30:15 CEST] <houdini> or [04:30:20 CEST] <houdini> overlay=x=300:y=200:shortest=1 [04:30:28 CEST] <c_14> The second [04:30:34 CEST] <houdini> ifthank you trying [04:31:25 CEST] <houdini> oh man [04:31:29 CEST] <houdini> Thank you very much [04:32:23 CEST] <houdini> how can i add these codes to the last codes [04:32:23 CEST] <houdini> -vf setpts=PTS/2.0,scale=2.0*iw:-1,crop=iw/1.25:ih/1.25 -af atempo=1.09 [04:32:55 CEST] <houdini> sorry not this one [04:33:15 CEST] <houdini> i just want to speed up video 2x [04:33:26 CEST] <houdini> -vf setpts=PTS/2.0,scale=2.0*iw:-1, -af atempo=1.09 i think this code [04:34:11 CEST] <bornpilot> in ffmpeg concatenating files based on the base on the script found here https://trac.ffmpeg.org/wiki/Concatenate would performance bottleneck be found in drive, RAM, processor, or a combination thereof? [04:34:50 CEST] <c_14> ffmpeg -loop 1 -i picture -i video -filter_complex '[1:v]scale={width}:{height}[o];[0][o]overlay=x=300:y=200:shortest=1,PTS/2[v];[1:a]atempo=0.5[a]' -map '[v]' -map '[a]' out.mkv [04:35:04 CEST] <c_14> bornpilot: drive and processor [04:36:57 CEST] <bornpilot> would the relationship between drive be bitrate? [04:37:26 CEST] <c_14> yeah [04:38:27 CEST] <bornpilot> to which respect of concat..ing be for processor? [04:39:31 CEST] <c_14> the encoding at the end [04:39:44 CEST] <bornpilot> Okay, thanks c_14 [05:15:14 CEST] <bawNg> c_14: I put together a script to normalize the frames, had to implement some WinAPI stuff with FFI to be able to use high precision timers, but now ffmpeg is randomly stopping after anywhere from a few seconds to over a minute, due to "Failed to update header with correct duration.\nFailed to update header with correct filesize." [05:15:40 CEST] <bawNg> I'm not sure why, I'm testing with lots of delay, so there is a large buffer of frame PNGs for input images [05:16:24 CEST] <bawNg> Pastebin is a little overkill in this case, I'm just testing with: ffmpeg -framerate 20 -re -i r:\temp\frames\%d.png -c:v libx264 -preset fast -pix_fmt yuv420p -f flv "rtmp://localhost/test" [05:17:06 CEST] <bawNg> Unless you want the full output when it dies? There doesn't seem to be anything useful of note other than those two yellow warning lines [05:17:35 CEST] <c_14> Does the issue occur when outputting to a local file? [05:17:45 CEST] <bawNg> I'll test that quick [05:18:59 CEST] <maslen> c_14: I wrote up what you helped me with the other day. Not sure if there's a ffmpeg wiki page it belongs on, but if you want to take a look: http://blog.moshekaplan.com/2015/05/12/converting-vhs-tapes-to-mp4s-2/ [05:20:35 CEST] <bawNg> It's been running over 2 minutes already outputting to a file, so it doesn't seem to randomly break without RTMP [05:21:06 CEST] <bawNg> I don't see how a local RTMP server could break it, it's a nginx server [05:21:43 CEST] <bawNg> It reached the end of the frames I had when outputting to a file, so does not seem to have any issues without RTMP [05:23:38 CEST] <c_14> Try pastebinning the console output when it breaks to rtmp. Maybe you missed a message somewher. [05:23:42 CEST] <c_14> +e [05:42:52 CEST] <bawNg> I just fixed a race condition which was causing blank frames to be copied in certain cases, but that wasn't causing the random ffmpeg failures [05:44:06 CEST] <bawNg> c_14: The interesting thing is, it never fails at the same point [05:44:16 CEST] <bawNg> Even when processing the same input images [05:44:29 CEST] <bawNg> It can even sometimes make it through all 3000 test frames [05:45:54 CEST] <bawNg> c_14: Here are two attempts in a row, using the same input frame images: http://hastebin.com/ficemaduse.txt [05:46:18 CEST] <bawNg> First time it got to frame 479, second time frame 1043 [05:47:58 CEST] <c_14> >Input stream #0:0 frame changed from size:800x600 fmt:rgba to size:1026x638 fmt:rgba [05:48:39 CEST] <bawNg> That happens shortly after it starts, long before it stops [05:48:56 CEST] <c_14> oh, darn [05:50:06 CEST] <c_14> Can't really see an error. [05:50:12 CEST] <c_14> Maybe something in the nginx logs? [05:50:17 CEST] <bawNg> Yeah, probably because there isn't one :P [05:50:24 CEST] <bawNg> Good idea, I'll check that next [05:53:00 CEST] <bawNg> WSARecv() failed (10053: An established connection was aborted by the software in your host machine) [05:53:29 CEST] <bawNg> Not awfully useful, just points at ffmpeg :( [05:54:27 CEST] <c_14> No clue [05:57:12 CEST] <c_14> Does saving to a file and then streaming the file to rtmp work? [05:57:21 CEST] <c_14> Just to rule out the rtmp just being completely broken. [05:58:50 CEST] <bawNg> I could try that, I just tried streaming to Twitch, and it does the same thing as my local Nginx [05:59:17 CEST] <bawNg> Or it did once, and now it is randomly working [05:59:31 CEST] <bawNg> This seems extremely inconsistent [06:00:47 CEST] <bawNg> It made it 3407 the second attempt to Twitch before dying [06:40:43 CEST] <bawNg> c_14: Looks like it randomly stops when outputting to a file too [06:40:51 CEST] <bawNg> Just without those warnings [06:41:33 CEST] <bawNg> Although somewhat random, it seems like the more images there are in the directory, the longer it may run [06:41:50 CEST] <bawNg> But it almost never gets anywhere near the end of the images [07:03:42 CEST] <bawNg> This is a pretty horrible issue to troubleshoot, the longer I test the longer it takes to test [07:05:19 CEST] <bawNg> It's as if ffmpeg stops after making it through half of the images in the input directory [07:06:06 CEST] <c_14> Can you try piping the images into ffmpeg? [07:06:16 CEST] <c_14> And using the image2pipe demuxer? [07:06:33 CEST] Action: c_14 needs to sleep now though [07:06:36 CEST] <bawNg> That would actually be better than writing temporary files to a ram disk and having to remove them later [07:06:37 CEST] <c_14> Hope that might help though [07:06:59 CEST] <bawNg> I just stopped the file creation, so I can see if it actually stops at exactly 50% [07:07:16 CEST] <bawNg> Because it appears to be extremely close to 50% every time [07:07:49 CEST] <bawNg> I'll look into the image2pipe demuxer, thanks for the help c_14 [07:08:15 CEST] <Nemo377307289> Could ffmpeg add rotating animation for watermark picture? [07:08:16 CEST] <Nemo377307289> I means, let the watermark 3D rotate 360 degree, then show the watermark in a fixed position. [07:08:16 CEST] <Nemo377307289> Thanks a lot. [07:08:32 CEST] <bawNg> It definitely seems to be related to the files being written in real time, even if there are 2000 buffered files [07:09:33 CEST] <bawNg> It makes it through all the images when they are not being written [08:06:19 CEST] <bawNg> A high latency between FFMPEG and an output RTMP server appears to cause a very low frame rate (5 or 6 FPS) [08:07:10 CEST] <bawNg> Is there any way to avoid this? It occurs even if I use copy to send a local RTMP stream to Twitch [08:14:21 CEST] <Nemo377307289> ffmpeg -i test.mp4 -codec copy -bsf h264_mp4toannexb -f udp udp://127.0.0.1:6666 [08:14:22 CEST] <Nemo377307289> And i using VLC player open network stream "udp://@:6666", it output "buffering 0%" error all the time, and shown nothing, what's wrong? thanks a lot! [08:14:58 CEST] <Nemo377307289> ffmpeg -re -i test.mp4 -codec copy -bsf h264_mp4toannexb -f udp udp://127.0.0.1:6666 [10:32:50 CEST] <chopsuey5540> hi all [10:33:09 CEST] <chopsuey5540> I have a dump of a raw H264 stream in a file that reads fine with ffplay [10:33:32 CEST] <chopsuey5540> but when I try to decode it live the avcodec_decode_video2 call fails [10:34:00 CEST] <chopsuey5540> with errors [10:34:01 CEST] <chopsuey5540> non-existing PPS 0 referenced [10:34:06 CEST] <chopsuey5540> decode_slice_header error [10:34:17 CEST] <chopsuey5540> any idea how I could debug this? [13:22:06 CEST] <talin_> hello and spello [13:44:39 CEST] <maslen> Is it possible to display what ffmpeg is converting from a capture device? [13:45:18 CEST] <maslen> It seems that only a single program can read from the device at a time. I'd prefer to watch the video while ffmpeg is converting it [13:45:52 CEST] <brontosaurusrex> any "best" ways to use w3fdif from 50i to 25p? (is it generaly better than yadif?) [13:55:52 CEST] <brontosaurusrex> cough [14:43:36 CEST] <saste> maslen, try with the SDL output muxer [15:56:49 CEST] <ausjke> is it possible to stream the same video in unicast(tcp) and multicast(udp) in parallel? [16:06:26 CEST] <c_14> ausjke: https://trac.ffmpeg.org/wiki/Creating%20multiple%20outputs#Teepseudo-muxer [17:08:49 CEST] <dAnjou> hi, can i check somehow whether the metadata of an MP4 file is in the beginning or in the end? [17:09:17 CEST] <dAnjou> i'd like to know this first before i change code and deploy it [17:24:28 CEST] <kepstin-laptop> dAnjou, simple method? try chopping off the end of the file and see if it can still be decoded :) [17:24:43 CEST] Action: kepstin-laptop imagines there's a better way to do that. [17:43:15 CEST] <dAnjou> kepstin-laptop: o.O [17:48:01 CEST] <Freakshow> dAnjou: metadata? moov atom, etc.? [17:53:48 CEST] <dAnjou> Freakshow: yes [17:55:15 CEST] <dAnjou> i found MP4Box and it gives me output like this http://paste.ubuntu.com/11097839/ [17:55:27 CEST] <dAnjou> i see the moov thing in line 5 [17:55:36 CEST] <dAnjou> but i don't know how to interprete this [17:56:15 CEST] <dAnjou> the reason why I'm doing this is because I want to serve it properly over HTTP [17:56:40 CEST] <dAnjou> (just in case this wasn't painfully obvious by now :P) [17:57:22 CEST] <Freakshow> I figured progressive HTTP was your target. ;) [17:57:43 CEST] <Freakshow> That seems to be right by my account. [17:58:43 CEST] <dAnjou> well i guess this tells me, the actual video data is before the moov [iso file] Read Box type mdat size 2542663 start 40 [17:58:55 CEST] <dAnjou> [iso file] Read Box type moov size 6205 start 2542703 [17:59:03 CEST] <dAnjou> so i guess it's in the end [17:59:17 CEST] <dAnjou> let's see if i can move it to the beginning [18:01:43 CEST] <dAnjou> [iso file] Read Box type moov size 6218 start 32 [18:01:46 CEST] <dAnjou> looks fine [18:05:31 CEST] <Freakshow> what does qt faststart tell you? [18:05:38 CEST] <Freakshow> you could easily confirm with that as well [18:05:55 CEST] <Freakshow> useful on the mac as an air application [18:05:59 CEST] <Freakshow> qtindexswapper [18:06:03 CEST] <dAnjou> i'm on ubuntu, how do i get this thing? [18:06:15 CEST] <Freakshow> I think they have a python version as well [18:06:19 CEST] <Freakshow> yep [18:06:20 CEST] <Freakshow> http://multimedia.cx/eggs/improving-qt-faststart/ [18:06:31 CEST] <Freakshow> Ill admit, Ive never used it on ubuntu [18:06:53 CEST] <Freakshow> Im rebuilding my 14.04 box so I cant test atm [18:06:56 CEST] <dAnjou> nice, thanks. i'll try it [18:09:36 CEST] <dAnjou> it worked and didn't touch the size of the atom unlike avconv before [18:10:24 CEST] <dAnjou> but i'm going to use this https://trac.ffmpeg.org/wiki/Encode/H.264#faststartforwebvideo [18:10:47 CEST] <dAnjou> i won't touch existing files, but new ones should have this [18:23:08 CEST] <Freakshow> yup, I was also going to suggest that [18:24:34 CEST] <dAnjou> thank you very much! [19:02:55 CEST] <rjp421> http://www.streamingmedia.com/conferences/East2015/StreamingLive.aspx [19:44:17 CEST] <BlackBishop> while trying a ffmpeg -i concat:"file1.MOV|file2.MOV" -codec copy file.mov it seems that it only copies file1 .. anything I'm doing wrong ? I want to concatenate the 2 files ( as a start .. ) [19:44:40 CEST] <c_14> use the concat demuxer, not the concat protocol [19:45:49 CEST] <c_14> https://trac.ffmpeg.org/wiki/Concatenate [19:47:34 CEST] <BlackBishop> ok [19:52:35 CEST] <BlackBishop> thanks [20:24:29 CEST] <bawNg> c_14: image2pipe did solve the issue with FFMPEG randomly giving up, do you have any idea why a high latency between FFMPEG and the RTMP server would cause a low FPS? I get 5 or 6 FPS even when using copy to relay a stream from my local RTMP server to Twitch [20:25:38 CEST] <c_14> that shouldn't happen [20:26:00 CEST] <c_14> How are you measuring the fps? [20:29:20 CEST] <bawNg> Using the FFMPEG FPS that is logged, but now it seems that only happened once [20:29:35 CEST] <bawNg> It seems to be working fine now, so perhaps something else was causing the issue [20:30:11 CEST] <bawNg> Or no, it's still very low [20:30:33 CEST] <bawNg> It starts off high, and drops slowly until around 5 or 6 FPS [20:31:01 CEST] <bawNg> I'm looking at the "fps=..." output from the curses UI and I'm using copy from my local RTMP server in this case [20:31:32 CEST] <c_14> That's not even curses. [20:31:34 CEST] <c_14> What's your command? [20:32:16 CEST] <bawNg> ffmpeg -i "rtmp://localhost/test" -c:v copy -f flv "rtmp://live.twitch.tv/app/..." [20:32:36 CEST] <c_14> And the one streaming to test? [20:34:08 CEST] <bawNg> ffmpeg -f image2pipe -i - -c:v libx264 -pix_fmt yuv420p -maxrate 3500K -bufsize 1000K -force_key_frames "expr:gte(t,n_forced*2)" -f flv "rtmp://localhost/test" [20:34:48 CEST] <bawNg> I'm redirecting that to a log file, since it's spawned by my script, according to the log file it's at 19 - 20 FPS [20:34:51 CEST] <c_14> What fps is that command providing? [20:34:55 CEST] <c_14> mhm [20:38:06 CEST] <bawNg> I'm getting some kind of buffering issue when watching the stream from my nginx server, not sure what could be causing it though [20:38:20 CEST] <bawNg> I should probably try using a different playing [20:38:24 CEST] <bawNg> *player [20:38:55 CEST] <bawNg> I get buffering issues in VLC even when streaming a twitch stream, but this is lower bitrate [20:40:13 CEST] <bawNg> According to the FFMPEG log it never drops below 19 FPS, it drops from 20 to 19 early and then stays at 19 forever, so I don't see how there can be an issue with the stream itself [20:44:01 CEST] <c_14> ffmpeg -i rtmp://localhost/test -f null /dev/null <- what's the fps on that? [20:44:28 CEST] <bawNg> My local nginx stream appears to be fine if I use HLS to view it [20:46:48 CEST] <bawNg> That starts over 100 and drops over time, the longer it runs the slower it drops, but the FPS keeps dropping, it just reached 20 now [20:47:58 CEST] <bawNg> It doesn't seem to be dropping below 20 so far though [20:52:39 CEST] <bawNg> Still at 20, going to test the same with with a remote RTMP server now [20:53:12 CEST] <bawNg> Oh, I don't have a remote RTMP server which will accept a null stream [20:56:41 CEST] <bawNg> When using copy from my local nginx to Twitch, it starts at around 40 FPS, actually goes up a bit at first, then slowly drops until 5 or 6 [21:01:21 CEST] <bawNg> The stream going to my local nginx is logging 750+ kbits/s, the FFMPEG using copy logs around 100kbits/s when starting and under 400kbits/s when it has dropped to about 7 [21:01:33 CEST] <bawNg> I'm not sure exactly what is going wrong here [21:07:04 CEST] <rjp421> btw streaming media east 2015 is live http://www.streamingmedia.com [21:08:34 CEST] <rjp421> is there a way to derive the direct feed uri from their ustream? [21:08:47 CEST] <rjp421> so to input into ffmpeg [21:12:31 CEST] <rjp421> there was an old script which was never maintained and now doesnt work [21:23:31 CEST] <JEEBsv> rjp421: you probably want to check out youtube-dl if it has support for ustream [21:23:34 CEST] <JEEBsv> probably has [21:23:57 CEST] <JEEBsv> youtube-dl seems to be the thing after libquvi went the way of the dodo [21:24:18 CEST] <JEEBsv> (mpv at least switched its streaming site support backend to call it internally) [21:24:53 CEST] <rjp421> JEEBsv, awesome ty [21:30:39 CEST] <rjp421> unfortunately for ustream, but fortunate to us, they use(d?) adobe media server but dont do server-side ad insertion [21:31:24 CEST] <rjp421> is can have you playing a pseudo stream that can be told to play either the source feed or an ad [21:31:28 CEST] <rjp421> it* [21:32:46 CEST] <rjp421> and wait for an ingress feed from ffpeg etc and play/queue it [21:35:37 CEST] <rjp421> if i knew java though id probably be using wowza, not sure if they can do that type of forced ad insertion [22:02:32 CEST] <syntaxaire> Is ffserver still deprecated and going to be removed? I'm just trying to figure out a working way to stream HTML5 live video. [22:05:50 CEST] <syntaxaire> Or does anyone know if the ffserver functionality has been wrapped into ffmpeg proper? [22:25:11 CEST] <podman> hey guys. I'm having issues with videos looking washed out in HTML5 playback. It looks like the issue has to do with the YUV color range [22:26:12 CEST] <podman> i'm wondering if anyone else has run into this or knows how to deal with it? [22:29:24 CEST] <the_fool> Hi [22:29:51 CEST] <the_fool> Does anyone here have experience installing ffmpeg on ubuntu from the ppa given on the official page? [22:30:39 CEST] <the_fool> I'm trying to find a version of ffmpeg that has been compiled with nvenc support. [22:32:06 CEST] <c_14> you won't [22:32:16 CEST] <c_14> (or if you do, the distribution thereof is illegal) [22:32:37 CEST] <the_fool> Why? [22:32:42 CEST] <c_14> license issues [22:33:21 CEST] <the_fool> Oh, so why was nvenc support mentioned for 2.6? [22:33:34 CEST] <c_14> You can build ffmpeg with nvenc support. You just can't distribute it. [22:33:47 CEST] <c_14> So, if you want an ffmpeg with nvenc support you'll have to built it yourself. [22:33:54 CEST] <the_fool> Oh no... [22:34:13 CEST] <the_fool> Thanks for clearing that up. [23:33:55 CEST] <grepper> I notice with a recent ffmpeg that using the subtitles filter and an ass subtitle format file, it still works as if I had used the ass filter. Is that something I can depend on in a script? (ie. "-vf subtitles=file.ass") [23:35:04 CEST] <c_14> yep [23:39:07 CEST] <grepper> that's great, sure makes it easier to test if ffmpeg supports the file. [23:39:28 CEST] <grepper> c_14: should the subtitles filter always come at the end of the filter chain ? [23:41:10 CEST] <c_14> Won't matter 9 times out of 10 [23:42:57 CEST] <grepper> okay, thanks a bunch. Multiple filters are still a bit of mystery to me. [23:51:44 CEST] <a\m> Good day, all. [23:52:45 CEST] <a\m> This might not be a purely ffmpeg questions, but I'm trying to encode an MP4 for html5 player [23:53:07 CEST] <a\m> I have mod_h264_streaming installed on Apache [23:53:45 CEST] <a\m> However, when the page loads, looking at network activity, I see multiple requests to the MP4 file. [23:54:08 CEST] <a\m> with HTTP 206 response, usually 20-40K in size [23:54:19 CEST] <a\m> Anyone has any idea what this is? [00:00:00 CEST] --- Wed May 13 2015