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Nov 10 00:06:48 <CalimeroTeknik> hello! can I tell ffmpeg to keep the attachments (mkv fonts) while encoding? | |
Nov 10 00:07:20 <CalimeroTeknik> no magic -keep-attachments or alike option | |
Nov 10 00:07:28 <CalimeroTeknik> well, afaik | |
Nov 10 00:11:26 * glebihan_ (~glebihan@unaffiliated/glebihan) has joined #ffmpeg | |
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Nov 10 00:16:33 <klaxa> CalimeroTeknik: -map 0 | |
Nov 10 00:19:28 <CalimeroTeknik> ah, thanks but it doesn't seem to work | |
Nov 10 00:20:06 <CalimeroTeknik> oh! it's maybe two subtitle tracks. sorry. | |
Nov 10 00:20:54 <klaxa> it worked for me the last time i checked | |
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Nov 10 00:25:01 <CalimeroTeknik> that's strange, it indeed includes the fonts but one of the two subtitles is missing | |
Nov 10 00:25:12 <CalimeroTeknik> (so thanks, -map 0 works) | |
Nov 10 00:25:39 * glebihan_ has quit (Ping timeout: 248 seconds) | |
Nov 10 00:28:11 <CalimeroTeknik> here's ffmpeg output: http://sprunge.us/PhBh | |
Nov 10 00:28:53 <klaxa> there is only one subtitle stream as far as i can see | |
Nov 10 00:29:34 <CalimeroTeknik> yes, indeed | |
Nov 10 00:30:00 <klaxa> so what exactly is missing? | |
Nov 10 00:30:06 <CalimeroTeknik> it contains an ass subtitle for the up of the screen (Japanese) and the bottom (English) | |
Nov 10 00:30:12 <CalimeroTeknik> the English is missing | |
Nov 10 00:30:39 <sacarasc> Which can be done in 1 subtitle file. | |
Nov 10 00:31:10 <klaxa> which most of the time IS done in one subtitle file... lemme see if i can reproduce | |
Nov 10 00:31:10 <CalimeroTeknik> absolutely | |
Nov 10 00:32:06 <CalimeroTeknik> do you want a ssh to test? | |
Nov 10 00:32:46 <klaxa> i'll download the file and see if it works on my system | |
Nov 10 00:33:35 <CalimeroTeknik> well, mkvmerge does a better job here | |
Nov 10 00:34:52 <CalimeroTeknik> however if reencoding is needed (in order to cut the video precisely, not ±5 seconds on keyframes) I need to get ffmpeg to properly dump subtitles from input to output | |
Nov 10 00:35:42 <CalimeroTeknik> for the moment, I wrote this script, it solves the problem : http://sprunge.us/RhGE | |
Nov 10 00:36:17 <klaxa> well it should start with an i-frame and whatever comes afterwards doesn't matter... so you should be able to extract the opening... | |
Nov 10 00:36:37 <CalimeroTeknik> with mkvmerge, yes, it worked perfectly | |
Nov 10 00:36:53 <CalimeroTeknik> with ffmpeg as my paste describes, the second subtitle disappears | |
Nov 10 00:37:04 <CalimeroTeknik> well... the bottom subtitle line I mean | |
Nov 10 00:37:22 <klaxa> maybe they are defined later in the script and ffmpeg thinks it got all the subs? | |
Nov 10 00:37:28 <klaxa> which would be rather weird | |
Nov 10 00:38:51 <CalimeroTeknik> well, yes | |
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Nov 10 00:48:54 <klaxa> (btw CalimeroTeknik: sora no woto any good? would you recommend it?) | |
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Nov 10 00:53:40 <klaxa> CalimeroTeknik: i can reproduce that behavior | |
Nov 10 00:54:28 <CalimeroTeknik> it's soft, but entertaining | |
Nov 10 00:57:58 <CalimeroTeknik> dumping the subtitles doesn't produce the same result as from the file produced by mkvmerge! | |
Nov 10 00:58:25 <CalimeroTeknik> the order is slightly modified | |
Nov 10 00:58:32 <CalimeroTeknik> that's all, apparently. | |
Nov 10 00:58:41 <klaxa> hmm... i blame the demuxer of libav? | |
Nov 10 00:59:03 <klaxa> if you extract the subs from the encoded file and use the .ass file directly it gets rendered properly | |
Nov 10 00:59:25 <klaxa> if you use the embedded subtitles it doesn't work | |
Nov 10 00:59:32 <CalimeroTeknik> http://sprunge.us/BVhM | |
Nov 10 00:59:33 <klaxa> how did you extract it with mkvmerge? | |
Nov 10 01:00:08 <klaxa> timecodes are the same, it shouldn't make any difference :|{[ | |
Nov 10 01:00:10 <CalimeroTeknik> mkvmerge \[Chihiro\]_Sora_no_Woto_-_07.5_\[1280x720_Blu-Ray_FLAC\]\[0F27FE1F\].mkv --split parts:00:00:00.000-00:01:30.000 -o op.mkv | |
Nov 10 01:01:21 <CalimeroTeknik> this one produces visible subtitles | |
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Nov 10 01:04:07 <klaxa> there must be something else... | |
Nov 10 01:04:22 <CalimeroTeknik> yes, but I won't diff the mkv files. | |
Nov 10 01:04:22 <klaxa> i guess a bugreport isn't too bad of an idea anyways | |
Nov 10 01:04:37 <CalimeroTeknik> is the matter investigated enough? | |
Nov 10 01:04:47 <CalimeroTeknik> we still don't know what's going wrong | |
Nov 10 01:04:48 <klaxa> i tried, forget it, the matroska tools and ffmpeg write pretty different headers and metadata | |
Nov 10 01:06:35 <klaxa> mkvextract also writes 3 frames less | |
[...] | |
Nov 10 01:10:43 <klaxa> currently dumping the interleaved subtitles as hex | |
Nov 10 01:11:15 <klaxa> those should be more or less identical apart from the switch of one line | |
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Nov 10 01:12:25 <klaxa> oh... they differ by a byte every here and there | |
Nov 10 01:12:46 * juanmabc (~juanmabc@79.109.192.240.dyn.user.ono.com) has joined #ffmpeg | |
Nov 10 01:14:20 <CalimeroTeknik> is that LF/CRLF line jumps that were converted to LF when extracting with mkvextract tracks file.mkv 2:blah.ass ? | |
Nov 10 01:15:00 * glebihan__ has quit (Ping timeout: 265 seconds) | |
Nov 10 01:17:07 <klaxa> i don't even know... but it seems like ffmpeg doesn't mux the .ass correctly for some reason | |
Nov 10 01:17:29 <klaxa> if i use the .ass i get with mkvmerge and mux it with ffmpeg it doesn't work | |
Nov 10 01:17:34 <klaxa> neither does simply remuxing help | |
Nov 10 01:18:22 * Multbrelch has quit (Quit: Leaving) | |
Nov 10 01:19:50 <klaxa> the event gets called | |
Nov 10 01:19:51 <klaxa> [ass] Text = {\fad(300,300)}kono sora no kagayaki kimi no mune ni todoiteru | |
Nov 10 01:19:51 <klaxa> [ass] Event at 3550, +9780: 0,0,OPE,,0000,0000,0000,,{\fad(300,300)}The luminance of the sky has reached your heart. | |
Nov 10 01:19:53 <klaxa> but not rendered | |
Nov 10 01:20:18 * glebihan__ (~glebihan@unaffiliated/glebihan) has joined #ffmpeg | |
Nov 10 01:21:41 <CalimeroTeknik> in the player? | |
Nov 10 01:23:10 <klaxa> yeah with mplayer | |
Nov 10 01:23:28 <klaxa> the event gets triggered... producing mplayer2 debug messages for .ass right now for both files | |
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Nov 10 01:24:49 <CalimeroTeknik> oh I didn't test vlc | |
Nov 10 01:25:20 <CalimeroTeknik> same result. | |
Nov 10 01:25:29 <klaxa> yeah but... >vlc | |
Nov 10 01:25:36 <klaxa> you know how it goes | |
Nov 10 01:26:22 <CalimeroTeknik> anyway it calls libass just as mplayer I guess | |
Nov 10 01:26:49 <wm4> yes VLC uses libass now | |
Nov 10 01:30:00 <klaxa> CalimeroTeknik: http://diffchecker.com/lTd7wIjl | |
Nov 10 01:30:21 <klaxa> that's the debug output of mplayer2 grep'd for ass | |
Nov 10 01:31:14 <klaxa> so apart from the swapped lines it's identical | |
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Nov 10 01:31:39 <CalimeroTeknik> okashii ne~ | |
Nov 10 01:33:18 <CalimeroTeknik> "[0x1827cb0]" changes, is that an address in the file? | |
Nov 10 01:33:25 <klaxa> i guess so | |
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Nov 10 01:33:50 <@ubitux> it's a pointer | |
Nov 10 01:33:55 <@ubitux> of the context printer | |
Nov 10 01:34:11 <@ubitux> i guess. | |
Nov 10 01:34:23 <klaxa> the funny thing is, if you use the .ass you get when you extract it with ffmpeg it works, if you use the .ass you get from mkvmerge it works | |
Nov 10 01:34:35 <klaxa> the only thing that doesn't work is the embedded file | |
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Nov 10 01:35:04 <CalimeroTeknik> right, the data doesn't get destroyed | |
Nov 10 01:35:12 <@ubitux> i'm too lazy to backlog, is there a bug with ffmpeg? | |
Nov 10 01:35:23 <klaxa> probably | |
Nov 10 01:35:41 <klaxa> well it's kinda bound to ffmpeg... the situation is as follows: | |
Nov 10 01:36:02 <CalimeroTeknik> it's muxing subtitles in a way that if two of them appear at the same time, only one is displayed | |
Nov 10 01:36:12 <CalimeroTeknik> something like that is what I saw | |
Nov 10 01:36:21 <klaxa> matroska file with ass subtitles, multiple lines at a time, with the -t option of ffmpeg only one line appears if you use the embeeded subtitles, if you extract them it works | |
Nov 10 01:36:48 <CalimeroTeknik> oh, without -t it doesn't break anything? | |
Nov 10 01:37:02 <klaxa> i'm not sure lemme test | |
Nov 10 01:37:29 <@ubitux> i guess i'll have to backlog, but it's late, too bad | |
Nov 10 01:37:51 * thaman has quit (Remote host closed the connection) | |
Nov 10 01:37:52 <klaxa> nah doesn't work without -t either | |
Nov 10 01:37:53 <@ubitux> please open an issue on the trac if you think there is a problem with ffmpeg | |
Nov 10 01:38:01 <@ubitux> and feel free to hilight me with the bug id | |
Nov 10 01:38:29 <@ubitux> don't forget to describe a simple way of reproducing the issue | |
Nov 10 01:38:32 <CalimeroTeknik> basically using ffmpeg as cp doesn't work :p | |
Nov 10 01:39:15 <CalimeroTeknik> ubitux, try to use ffmpeg as if it were cp, on the file [Chihiro]_Sora_no_Woto_-_07.5_[1280x720_Blu-Ray_FLAC][0F27FE1F].mkv | |
Nov 10 01:39:18 <CalimeroTeknik> that's enough. | |
Nov 10 01:39:39 <klaxa> well you describe the problem and file a bugreport with the description :P | |
Nov 10 01:40:31 <@ubitux> i don't have 07.5 | |
Nov 10 01:40:38 <@ubitux> only 01-12 without half subs | |
Nov 10 01:40:38 <@ubitux> :p | |
Nov 10 01:40:40 <klaxa> stay in this channel, if you don't think you can write it up i can assist you tomorrow... because i'm tired... | |
Nov 10 01:40:42 <@ubitux> s/subs/eps/ | |
Nov 10 01:40:55 <klaxa> ubitux: it's well seeded at bakabt :P | |
Nov 10 01:41:03 <@ubitux> i don't want to watch this | |
Nov 10 01:41:10 <@ubitux> :) | |
Nov 10 01:41:17 <@ubitux> the anime was so-so | |
Nov 10 01:41:29 <@ubitux> just provide a simple .ass and a way to reproduce | |
Nov 10 01:41:29 <klaxa> yeah we'll see if we can reproduce it with some generated files | |
Nov 10 01:41:32 <@ubitux> and i'll have a look | |
Nov 10 01:43:34 <klaxa> maybe the subgroup did some stuff which differs from the specs for ass and ffmpeg tries to correct that | |
Nov 10 01:43:56 <klaxa> and thus everything fails... well i'll try to reproduce it tomorrow | |
Nov 10 01:45:19 <CalimeroTeknik> ah, for the bug report… yes, we need a small download to reproduce the problem | |
Nov 10 01:45:31 <CalimeroTeknik> which the file I'm using isn't exactly :p | |
Nov 10 01:45:42 <@ubitux> what do you need to do? | |
Nov 10 01:46:02 <@ubitux> you need to provide a video or a .ass to reproduce? | |
Nov 10 01:46:18 <klaxa> well... get a dummy video file, which contains an .ass that doesn't work propery | |
Nov 10 01:46:25 * Haikarainen has quit (Ping timeout: 265 seconds) | |
Nov 10 01:46:42 <@ubitux> hint: ffmpeg -f lavfi -i testsrc -t 5 out.mkv generates a 5 seconds mkv | |
Nov 10 01:47:02 <CalimeroTeknik> okay | |
Nov 10 01:47:08 <klaxa> if you extract the ass from the mkv it works | |
Nov 10 01:47:14 <klaxa> but not from within the container | |
Nov 10 01:47:18 <klaxa> that's the weirdest thing | |
Nov 10 01:47:25 <@ubitux> ?/ | |
Nov 10 01:47:36 <@ubitux> from the mkv but not from within the container? | |
Nov 10 01:47:40 <@ubitux> what does that mean? | |
Nov 10 01:48:00 <klaxa> i mean that if the ass is embedded in the mkv and you try to play it, it fails to render the second line of subtitles | |
Nov 10 01:48:00 <CalimeroTeknik> that means, after extracting the ass file from the mkv it can be used separately | |
Nov 10 01:48:20 <CalimeroTeknik> but muxed *by ffmpeg* into an mkv, it's not rendered properly | |
Nov 10 01:48:46 <@ubitux> ah, ok, so you just need to provide a .ass with duplicated events at the same time | |
Nov 10 01:48:54 <CalimeroTeknik> I think | |
Nov 10 01:48:56 <@ubitux> if the .ass is muxed with mkvmerge both subs shows | |
Nov 10 01:49:05 <@ubitux> and if muxed with ffmpeg, none? | |
Nov 10 01:49:09 <CalimeroTeknik> only one. | |
Nov 10 01:49:14 <CalimeroTeknik> and always the same one | |
Nov 10 01:49:24 <CalimeroTeknik> well, relative to its position on screen | |
Nov 10 01:49:26 <@ubitux> can you provide a .ass? | |
Nov 10 01:49:59 <CalimeroTeknik> http://sprunge.us/LgJI I think | |
Nov 10 01:50:39 <@ubitux> thx | |
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Nov 10 01:53:38 <@ubitux> works for me | |
Nov 10 01:55:35 <klaxa> hmm... maybe... ugh i kinda already thought it will be hard to reproduce with a different file | |
Nov 10 01:55:49 * TheSandmann has quit (Quit: Verlassend) | |
Nov 10 01:55:51 <@ubitux> ./ffmpeg -f lavfi -i testsrc=s=1280x720 -i in.ass -preset:v ultrafast -map 0 -map 1 -c:s copy -t 90 -y test.mkv | |
Nov 10 01:56:00 <@ubitux> without -c:s copy as well | |
Nov 10 01:56:03 <klaxa> maybe it's even dependent on the attachments... | |
Nov 10 01:56:13 <@ubitux> test.mkv displays 2 subtitles at the same time | |
Nov 10 01:56:24 <klaxa> yeah just tried myself too, same result here | |
Nov 10 01:57:46 <CalimeroTeknik> well, x264 fails to reencode this video! | |
Nov 10 01:58:16 <CalimeroTeknik> there must be something broken about it | |
Nov 10 01:58:32 <@ubitux> ok then i'm going to bed | |
Nov 10 01:58:36 <klaxa> i'll head to bed as well | |
Nov 10 01:58:42 <@ubitux> i'll wait for you to be able to describe the bug :p |
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