January 2011 - MPlayer-dev-eng - lists.mplayerhq.hu

svn update problem
by Ingo Brückl 26 Jan '11

26 Jan '11

Today I got Fetching external item into 'ffmpeg' svn: warning: UUID mismatch: existing directory 'ffmpeg/libswscale' was checked out from a different repository Has something changed? Ingo

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[PATCH] New vf expandstereo3d (adds proper black bars for over/under format)
by Lasse Kärkkäinen 25 Jan '11

25 Jan '11

There have been many 3d movies on the torrent sites in a format that could not be played by any of the filters that come with MPlayer nor with the patches I found, so I hacked it myself. This is based on the expand filter and the code is not perfect by any means but it gets the job done. Optimally expandstereo3d wouldn't be included in MPlayer but instead there would be a "swiss army knife" filter that could do conversion between all the 3d formats known. There is at least one filter that attempts that but it lacks the modes I need and I couldn't figure out how to fix it. Native stereo output via VDPAU, quad-buffered OpenGL or other drivers on systems that support such things (e.g. 3dvision or HDMI 1.4 3D) should probably also be supported. I hear the NVidia 270 be

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Developer Needed for Custom GUI
by Amanda Harkins 25 Jan '11

25 Jan '11

Hello, We are looking for a MPlayer-savvy developer to build a custom GUI for MPlayer on Mac/PC. We need to send commands via the command line, but need a transport to appear when the mouse is hovering towards the bottom of the screen, with play/pause, volume, and skip to next movie/back to prev movie. If you’re interested (or know someone who might be), please email me at amanda(a)leapingbrain.com and let me know, and if you have any kind of ballpark cost estimate, or timeframe, that would be great. If you have some background information on other MPlayer-related projects that you’ve worked on, that would be appreciated also. Thanks!

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[PATCH] Bug fix in af_add/del/switch/clr
by Jehan Pagès 24 Jan '11

24 Jan '11

Hi, I have been recently noticed by a user of a bug with audio filter loading-on-the-run commands. Some audio frames were lost, which was unnoticed when used punctually, but when loading/reloading/clearing a lot filters in some time span, more frames lost became noticeable, hence speed was accelerating. And consequently some videos were not resyncing well, so images and audios got desynchronized. Though it seems unlikely to load filters every few milliseconds to notice this, the user who reported the bug used an audio equalizer filter reloading. I guess such an equalizer could be very often reloaded by a mplayer GUI while a user is trying to find the right values to apply to each frequency band (I guess this person was indeed developping some GUI to mplayer). And he wants to do this without music speeding or video desyncing. And anyway that's a bug, so it is good to fix. :-) After test, the problem occurred with any audio filter anyway. ------------------- To reproduce: $ mkinfo /tmp/fifompdev $ mplayer -slave -input file=/tmp/fifompdev <your_media_file> $ while true ; do echo af_switch equalizer=0:0:0:0:0:0:0:0:1:1 >/tmp/fifompdev; sleep 0.1; done What happens and should not: in an audio file, the music will accelerate. In a video file, audio and video may desync. ------------------- Basically to fix, I removed calls to reinit_audio_chain(); after such a dynamic load/unload of a filter. This was causing the issue and this was an unecessary call actually as any sound reinitialization was already dealed with in the functions which actually loaded/unloaded audio filters. Attached is the small patch file. You can try the bug reproduction before and after, and confirms it has been fixed (I confirmed it on my machine and the user who reported me the bug also did for him). Thanks. Jehan

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[PATCH] Translate messages
by Ingo Brückl 23 Jan '11

23 Jan '11

The messages are in UTF-8 but the font file holds a single byte character set font, so we have to convert. Ingo

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[PATCHES] VOBsub cleanup
by Clément Bœsch 23 Jan '11

23 Jan '11

Hi, I'm making some noise again: this time I'd like to remove the hacky vobsub loading code in mplayer.c for a new clean function in subreader.c so I can update my -sub-paths patch to make it work with vobsubs. A few questions though: 1) Since subreader.c tends to "load" instead of "read" subtitles files, is it ok to rename it to something like subloader.c? I'm not only referring to my load_* functions, but even sub_read_* functions are not really reading, but much more loading subtitles using buffers… 2) load_vob_subtitle, just like the other hack, seems at the moment unable to load more than one subtitle at a time; can anyone confirm that? It seems not very problematic since there is generally a single vobsub file for multiple language but just to know :) 3) If this patch gets applied, I'll edit a bit my -sub-paths patch to allow vobsub to be loaded in specified directories, but it will only load the first find one (if you confirm (2)); it is fine? 4) VOBsub has a not-working-that-much RAR support; is it fine to drop it in case we move to FFmpeg decoders? So more about the patches now: 0001-Rename-strcpy_strip_ext-to-strcpy_strip_ext_lower.patch This patch just allows to strip extension from the file without lowercasing the name; I need it for the second patch. 0002-Replace-hacky-vobsub-loading-with-a-new-clean-one.patch Two small notes about this patch before you ask: - I used a extern vobsub_name declaration instead of passing it as an argument to the function to be consistent with the sub_name use in load_subtitles. - I needed to move code to subreader.c to use subtitles strings helpers while "rewriting" it (just strcpy_strip_ext though). Best regards, -- Clément B.

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git-svn
by Diego Biurrun 23 Jan '11

23 Jan '11

I'd like to encourage everybody to switch to git-svn in order to familiarize oneself with git usage. I've been using it at work myself and am slowly starting to fall in love with git. I'm not going to deny that there is a learning curve because there is one and if you are deeply familiar with Subversion or previously CVS, like myself, then there are some reflexes to unlearn and some retraining to do. I'd like to use this thread to share experiences, tip and tricks, HOWTOs and thoughts. So, everybody, please install git and run git svn clone svn://svn.mplayerhq.hu/mplayer which will pull the complete MPlayer repository to your computer while using up less space than a Subversion checkout. This operation will take a while, Subversion is not terribly efficient at pulling out old revisions. Then you can start programming as usual. git status git diff will do almost the same as the svn equivalents, but if you run git config --global color.ui true you will get some fancy coloring as added value. git log -p shows you the diffs along with the log messages, which comes in handy often enough. Start hacking and at some point commit your changes. git commit -a git commit -a <list of files> will do what you will expect, but you can try running git add -p before and cherrypick individual changes for committing them separately. Try running git diff git diff --cached to see what has been staged for commit and what hasn't. With git you should switch to a "commit early and commit often" workflow. Since you can edit history and amend your mistakes easily, this pays off greatly. After a while you will have a bunch of (local) commits lying around in your repository. Maybe some of them will have issues that you would like to fix. The next command to try is git rebase -i git-svn play around with reordering commits, fixing them, squashing fixup commits into their parents, rewording commit messages and whatnot. To get your local repository in sync with the central one on mphq, what Subversion would call "updating", run git svn rebase This will pull in all changes from the central repository and apply all your local changes on top of it. When you are happy with the result of your work and think the time has come to push changes out to the world at large, the command git svn dcommit will push all your local commits to the central repository on mphq. It's good to run git svn dcommit --dry-run first to avoid shooting yourself in the foot. Needless to say, I'm speaking from experience here. If you just want to push some, but not all, of your changes, use the rebase command from above to edit the history of your local repo so that the changes you want to push come first and then run git svn dcommit --dry-run <hash_of_last_commit_you_want_to_push> Yes, I'm directly suggesting to use a dry run first, dunno why ;-) Note that git cannot handle empty directories. While I consider this a shortcoming, git people generally don't. Oh well, no point in trolling here... It's a point to keep in mind though because it can cause real, if rare, issues when interoperating with Subversion. If you move some files around and leave behind empty directories, you cannot remove the directories in git directly. You can remove them in the file system, but git will not record the changes like Subversion would. To avoid orphaned empty directories in the Subversion repository backend, run git svn dcommit --rmdir I found the following tutorial helpful: http://git.or.cz/course/svn.html More links, amendments, comments and whatnot welcome. Diego

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Git migration
by Clément Bœsch 22 Jan '11

22 Jan '11

Hello again, Since FFmpeg is migrating to Git, it was question of doing it also for MPlayer. Is there anyone opposed to this? Luca mentionned the MPlayer dev team in FFmpeg mailing list so I'd be happy to have opinions on this. Regards, -- Clément B. Not sent from a jesusPhone.

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MPlayer developer needed for custom GUI
by Amanda Harkins 21 Jan '11

21 Jan '11

Hello, We are looking for a MPlayer-savvy developer to build a custom GUI for MPlayer on Mac/PC. We need to send commands via the command line, but need a transport to appear when the mouse is hovering towards the bottom of the screen, with play/pause, volume, and skip to next movie/back to prev movie. If you’re interested (or know someone who might be), please let me know, and if you have any kind of ballpark cost estimate, or timeframe, that would be great. If you have some background information on other MPlayer-related projects that you’ve worked on, that would be appreciated also. Thanks!

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New skin: Modern Clearlooks
by Ingo Brückl 21 Jan '11

21 Jan '11

This is a new, modern and functional skin suitable for gtk theme Clearlooks that I've created. It comes with a complete ISO-8859-1 font. I'd be happy to find "Modern Clearlooks" in the skins download section. Ingo

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