[00:00] <ulatekh> kdenlive didn't recognize .nut [00:01] <ulatekh> huffyuv with .mov produced garbage output! It was kind of entertaining...I might use it later if I need brightly colored static for an effect :-) [00:04] <ulatekh> HuffYUV and a Matroska container produces a clip that identifies itself as progressive, i.e. the interlacing info was lost. [00:07] <beastd> ulatekh: might be easier to tackle the problem the other way around. e.g. try to find a list / set of formats kdenlive accepts, then try to see what of those can be generated by ffmpeg and is sufficiently compressed. [00:08] <beastd> ulatekh: you might need to find out what kdenlive uses to read the files to come to a somewhat complete answer [00:08] <ulatekh> I have an open request on kdenlive-devel for a list of supported formats. I wasn't able to figure out how that was determined by reading the source code. [00:10] <ulatekh> FFV1 and a Matroska container produces a clip that identifies itself as progressive, i.e. the interlacing info was lost. I guess I can add that to my bug report. At least I have one container format & two pixel formats working for my raw video. [00:16] <ulatekh> Score! "-vcodec ffv1" and a .mov container preserved interlacing AND was accepted by kdenlive! Hot dog, we have a weiner! [00:17] <wind_> Hi all, i am trying to burn or add subtitles to an avi file i am doing this: ffmpeg -i video.avi -vf subtitles=subtitle.srt out.avi , but in the output i am not getting any subtitle [00:25] <Keyboard_Warrior> ulatekh, in a more perfect world [00:25] <Keyboard_Warrior> interlacing would never have existed [00:25] <Keyboard_Warrior> and it definitly never would have been including in any modern day digital formats [00:25] Action: Keyboard_Warrior cries his eyes out [00:27] <ulatekh> Yeah, well, that's what my miniDV camcorder produces, and it's what DVD-video uses, so I gotta deal with it...and so should ffmpeg :-) [00:27] <beastd> wind_: can you show us the full output of your command on pastebin? [00:28] <wind_> yeah sure give me 5 min [00:29] <Keyboard_Warrior> ulatekh, dvd can be progressive [00:29] <Keyboard_Warrior> dvd supports soft-interlacing or whatever the technical term i [00:32] <ulatekh> I've never gotten 24000/1001 fps DVDs to work on all players...several of them stutter horribly on such input. [00:33] <ulatekh> AFAIK, interlacing exists because of 1950s TV-camera technology. [00:34] <Keyboard_Warrior> ulatekh, theres a broadcast/bandwidth issue [00:34] <Keyboard_Warrior> aswell [00:34] <Keyboard_Warrior> ulatekh, dvd players SHOULD support soft-telecine [00:34] <wind_> Here it is: http://pastebin.com/embed_js.php?i=wmsEjiTD [00:35] <Keyboard_Warrior> http://en.wikipedia.org/wiki/Telecine#Soft_and_hard_telecine ulatekh [00:36] <Keyboard_Warrior> ulatekh, but yeah, even today, interlacing is a big part of our lives. [00:36] <Keyboard_Warrior> the h264 standard has a TON of provisions for interlacing [00:36] <Keyboard_Warrior> including a special encoding mode to allow interlacing on indiidual macroblocks [00:38] <ulatekh> Ah yes..."soft telecined" is what I produce if I'm encoding the video from raw input. mpeg2enc does 3:2 pulldown. The last time I checked, ffmpeg didn't do soft telecine. [00:39] <ulatekh> Oh...I mean 2:3 pulldown...duh [00:45] <beastd> wind_: seems sth goes wrong. how does the playback look if you replace ffmpeg with ffplay and drop out.avi from that line? [00:45] <Keyboard_Warrior> ulatekh, soft telecine is where the actual video data is progressive but theres flags in the video file explaining how to telecine it [00:45] <Keyboard_Warrior> HARD telecine is where the actual videodata is progressive, but you apply a 2:3 pulldown to make it interlaced before encoding [00:46] <Keyboard_Warrior> ofcourse, both these are different from actual interlaced content [00:46] <Keyboard_Warrior> http://mod16.org/hurfdurf/?p=12 ulatekh [00:47] <ulatekh> "mpeg2enc -p" produces soft telecine...sorry about my sloppiness with terms. [00:50] <wind_> beastd: i run the command on a laptop where the screen is broken and on my local laptop i haven't ffplay [00:52] <beastd> oh [00:53] <wind_> any other tip ? [00:54] <beastd> wind_: sorry. can't think very clearly atm. but wait a bit. maybe sth comes to mind [01:03] <wind_1> i am trying with the mencoder now [01:07] <beastd> wind_1: wind_1 [01:07] <beastd> wind_1: maybe a problem with your fonts/fontconfig ? [01:08] <wind_1> how to troubleshoot ? [01:09] <beastd> wind_1: btw what language is the text contained in your srt file? [01:09] <wind_1> Greek [01:27] <beastd> wind_1: could be the chars you need are not in the font that got selected. maybe try to edit a copy of the subtitle file to contain some lating characters in e,g, the first sub. then use that as input and see if the latin part got rendered [01:35] <wind_1> ok i ll try this tomorrow thank you , good night [10:55] <Fjorgynn> what is H.265? [10:55] <Fjorgynn> http://techcrunch.com/2013/01/25/h265-is-approved/ [11:01] <Fjorgynn> käften [11:01] <Fjorgynn> So what should we think about this? [12:55] <antonello> hallo i must use swr_convert but my RUN FAILED ..... I don't know why . I have encoder and decoderContex and i set encoder parameters by decoder parametrs , after alloc the SwrContext using the two context . My code is http://pastebin.com/GXjjcWNP line 440-458 [15:47] Last message repeated 1 time(s). [16:24] <saste> antonello, did you have a look at doc/examples/resampling.c? [16:24] <saste> you use of the API is fishy to me [16:25] <saste> for example you open the encoder, *then* you set fields on it [16:25] <saste> that should be avoided, unless you know what you're doing [16:26] <saste> also audio samples buffers are tricky to deal with, that's why i pointed to the example [17:08] <wind_> Trying to burn subtitles using ffmpeg didn't work: http://pastebin.com/G5xPmzCp#. However trying to play it with ffplay it complains "fontconfig: Selected font isnot the requested one: 'Liberation Sans != 'Arial' " and the movie playes with subtitles [17:08] <wind_> Any idea ? [17:12] <saste> wind_, that seems regular font-mess, not strictly related to ffmpeg code [17:12] <klaxa> the error message is actually just a warning [17:12] <klaxa> ... or not? [17:13] <saste> also as klaxa wrote it is a warning, so you *may* be able to burn the subs, more or less [17:13] <wind_> Yeah it could be a warning but the final output avi fle doesn't contain any subtitles... [17:14] <klaxa> i get those messages a lot with mplayer2, however the fonts appear correct nonetheless [17:14] <wind_> i want to burn the subtitles in order to play the movie on the TV from a USB disk and not using any player like VLC or mplayer [19:11] <killown> actually I am using this ffmpeg -f alsa -ac 2 -i pulse -f x11grab -s hd1080 -r 24 -i :0.0 -vcodec libx264 -preset ultrafast -an -y video.mkv -acodec pcm_s16le -b:a 48000k -vn -y audio.mkv to grab x11, what could I do to encode it in 1080p and making ffmpeg requires less I/O and CPU? [19:16] <killown> I guess the problem is the preset [19:17] <killown> using -preset fast would requires less I/O and more CPU [19:17] <killown> rather than ultrafast [22:33] <simon___1> exit [00:00] --- Mon Jan 28 2013