Fansubbing with Linux in mind

[Starks]

Seiji, are any errors popping up in your Xorg.0.log? Is KWin enabled?

(Today Dark Shikari took a subtle jab at me. I am not happy.)

[SeijiSensei]

I tried Miles's config file, and things worked fine, even in KDE The card itself has 512 MB of VRAM so the out-of-memory errors seemed implausbile even with KDE's compositing engine. (It's pretty amazing what $70 buys these days!)

I'm not sure exactly what was wrong. I had more codecs in my -vc chain than he did, as described here. These are the VC-1 codecs which are mentioned as being supported in the 9300 series of nVidia cards. I guess I erroneously presumed they'd be supported in the 9500 series as well. While my logs showed that mplayer appeared to choose the ffh264vdpau codec, I wonder if the extraneous ones somehow messed things up.

I also do seem to get ASS subtitles, which must mean the information in this thread is out-of-date. I haven't added the screenshot filter to the chain yet; I'm going to try that later tonight.

I tried the mplayer-nt build using git as described on the mplayer homepage. The binary failed to execute properly. The processor is a Pentium-D which, though a dual-core, might not support the multithreaded binary. I returned to the binary I compiled from SVN yesterday and, with Miles's config, played the Eden episode successfully.

[Emess]

Seiji, in general, the mplayer-uau git repository is much better to use. I didn't notice what distro you're using though, but I can give you a one liner for grabbing and compiling it. It's a good practice to disable compositing while watching video, ctrl+alt+F12 I think it the shortcut in KDE, I don't use compositing so I'm not too sure. It seems your codecs.conf file interfered, and you had to manually override it with a local conf. I am guessing you just opened the file and assumed it would play properly, what likely happened is that it rendered with VDPAU but didn't decode with it, and that occasionally has errors.

Today, I had to say something that is written on the KDE, mplayer, and nvidia sites, and starks failed to see why he was trolled. I am not happy.

E~

[npcomplete]

Edit: Today I had to repost a formula that is posted in about 5000 places on the internets.

I am not happy.

I wasted a bunch of time again trying to find one of these 5000 unicorns.
I am not happy.

Originally Posted by Dark Shikari

(RoundUp(Width/16)*16 * RoundUp(Height/16)* 16 * 1.5) * (Refframes + (Bframes > 0) )

But for this, I am happy

question: in Width and Height do you mean pixels * 3?

[Dark Shikari]

Originally Posted by npcomplete

question: in Width and Height do you mean pixels * 3?

... I mean the width. Of the freaking frame. In pixels.

Originally Posted by npcomplete

I wasted a bunch of time again trying to find one of these 5000 unicorns.

I have yet again found someone who is incapable of searching the Doom9 forums.

I am not happy.

[npcomplete]

Originally Posted by Dark Shikari

... I mean the width. Of the freaking frame. In pixels.

so the formula yields units in bytes? In terms of the maximum amount of video memory used? I ask because I want to make sense of the results e.g.
(1920 * 1088 * 1.5) * (4 + 1) = 16156800
.. 16,156,800 of ?

Edit: I ask because my thinking is:
"if this is in bytes: ~16MB ? really? If so, at 16 ref, it only takes ~52MB of RAM. Then why are there any issues at all with video ram size?"

[zhurai-tsuki]

since I'm not sure if I should make a new topic about this...

how do you guys encode within linux?

I don't care if it's cli/gui, as long as it's something usable with what I have:

(my system:
ubuntu 9.04
ffmpeg - from svn -> 04/26/09 (might update this to latest svn soon)
x264 - git? -> 04/26/09 (")
mplayer - svn - 4/27/09 (")
smplayer - svn r2987 (")
)

though I don't think the version matters, just putting that for the heck o/




(if this is not the place to put this, can a moderator split this into it's own thread?, thanks)

[Emess]

Originally Posted by zhurai-tsuki

how do you guys encode within linux?

I grab my raw, throw it into DGIndex in WINE, throw that into YMC in WINE, throw that into YATTA in WINE, edit my avs file in vim/nano, test it with vdub in WINE, encode lossless FFV1 in mencoder via avs2yuv, encode that to h264 with x264, mux with mkvmerge.

E~

[Dark Shikari]

Originally Posted by npcomplete

so the formula yields units in bytes? In terms of the maximum amount of video memory used? I ask because I want to make sense of the results e.g.
(1920 * 1088 * 1.5) * (4 + 1) = 16156800
.. 16,156,800 of ?

Edit: I ask because my thinking is:
"if this is in bytes: ~16MB ? really? If so, at 16 ref, it only takes ~52MB of RAM. Then why are there any issues at all with video ram size?"

Yes. It's in bytes.

[emptyeighty]

Originally Posted by npcomplete

Edit: I ask because my thinking is:
"if this is in bytes: ~16MB ? really? If so, at 16 ref, it only takes ~52MB of RAM. Then why are there any issues at all with video ram size?"

Where did you come across any such issues? Afaik the only things having problems with this are embedded devices, e.g. Popcorn Hour et al.

[Miles Teg]

Originally Posted by emptyeighty

Where did you come across any such issues? Afaik the only things having problems with this are embedded devices, e.g. Popcorn Hour et al.

With nVidia video card using VDPAU , with the first patch a 256MB video card wasn't able to decode a 720p level 4.1 video because of a lack of RAM, the situation is better right now but you will have problem with 1080p video if you don't have 512MB of VRAM.

[Mr VacBob]

Originally Posted by zhurai-tsuki

since I'm not sure if I should make a new topic about this...

how do you guys encode within linux?

You can get a reasonably good encode from within mencoder. It takes some work to get around the completely broken A/V sync code (something like -ofps 120000:1001 -oac pcm and then never using harddup) but you can IVTC with pullup and such. I can't remember if any output formats other than avi really work, but mkvmerge will fix that up, and while the filtering isn't as complex I can only consider not using warpsharp a good thing.

[Starks]

Vector clipping and draw mode code for libass just landed.

http://img115.imageshack.us/img115/1479/shot0006.png
http://greg.geekmind.org/mplayer/clip1.png
http://greg.geekmind.org/mplayer/clip2.png

Greg does amazing work.

[sl1pkn07]

please, if up the changes in official mainline mplayer repository...

make me very happy

[Starks]

Not yet, but here are the directions.

To get everything to work with MPlayer, follow these steps:

* Get build dependencies: sudo apt-get build-dep libass3 && sudo apt-get build-dep mplayer

* Get libass build and install it: git clone git://greg.geekmind.org/libass.git && cd libass && ./autogen.sh --prefix=/usr && make && sudo make install

* Get patched MPlayer, build and install it: git clone git://greg.geekmind.org/mplayer.git && cd mplayer && git checkout libass && ./configure --prefix=/usr && make && sudo make install

[tabata]

Originally Posted by Starks

Not yet, but here are the directions.

To get everything to work with MPlayer, follow these steps:

* Get build dependencies: sudo apt-get build-dep libass3 && sudo apt-get build-dep mplayer

* Get libass build and install it: git clone git://greg.geekmind.org/libass.git && cd libass && ./autogen.sh --prefix=/usr && make && sudo make install

* Get patched MPlayer, build and install it: git clone git://greg.geekmind.org/mplayer.git && cd mplayer && git checkout libass && ./configure --prefix=/usr && make && sudo make install

libass built fine however mplayer fails to finish the configure:

I Get:

....
./configure --prefix=/usr
sed: can't read ffmpeg/libavcodec/allcodecs.c: No such file or directory
sed: can't read ffmpeg/libavcodec/allcodecs.c: No such file or directory
sed: can't read ffmpeg/libavcodec/allcodecs.c: No such file or directory
sed: can't read ffmpeg/libavcodec/allcodecs.c: No such file or directory
sed: can't read ffmpeg/libavformat/allformats.c: No such file or directory
sed: can't read ffmpeg/libavformat/allformats.c: No such file or directory
sed: can't read ffmpeg/libavformat/allformats.c: No such file or directory
....
....
Checking for FFmpeg libavutil ...
Error: MPlayer will not compile without libavutil in the source tree.

Check "configure.log" if you do not understand why it failed.

If I try with --disable-libavutil_a it finishes configure but fails to compile.
Any ideas?

[TGEN]

Originally Posted by zhurai-tsuki

how do you guys encode within linux?

On Linux? Not, but on NetBSD I use AviDemux2 and HandBrake to transcode. They're GUI tools, and AviDemux2 comes with a couple of decent filters, so most of the time you don't need Winders and AviSynth anymore.

[greg-]

Sorry, the instructions are incorrect! I forgot to mention that you need to clone ffmpeg as well.
Now we have a MPlayer build repository that simplifies everything a lot. See http://repo.or.cz/w/mplayer-build.git

[Starks]

tabata, try this in your mplayer source folder:

git submodule init
git submodule update

[zhurai-tsuki]

when are the changes going to be put into the main (branch?/mainline?) of the mplayer?