December 2005 - MPlayer-DOCS - lists.mplayerhq.hu

updating italian console messages (was: Re: [MPlayer-users] Re: Mplayer CVS installation problem)
by Guillaume POIRIER 28 Dec '05

28 Dec '05

Hi, (thread moved to -docs because that's where it now belongs). On 12/28/05, Luigi Curzi <luigi_curzi(a)yahoo.it> wrote: > thanks, it solves the problem. > what can i do to update the italian console messages? You'd need to sync this file help/help_mp-it.h with this one: help/help_mp-en.h. Read this document to get a grasp of what this task involves: DOCS/tech/translations.txt. To put it in a nutshell, the missing Italian strings that were missing have to be added at the very least. There's probably a little more things to do, but I'm sure you'll get the idea. Guillaume -- Life is pleasant. Death is peaceful. It's the transition that's troublesome. Isaac Asimov (1920 - 1992) MPlayer's doc is offline. Find some fresh one here: http://tuxrip.free.fr//MPlayer-DOCS-HTML/en/ http://tuxrip.free.fr//MPlayer-DOCS-HTML/fr/

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CVS: homepage/src info.src.en,1.82,1.83
by syncmail＠mplayerhq.hu 28 Dec '05

28 Dec '05

CVS change done by Guillaume Poirier CVS Update of /cvsroot/mplayer/homepage/src In directory mail:/var2/tmp/cvs-serv18833 Modified Files: info.src.en Log Message: 10l of Eggnog (yuck!) Index: info.src.en =================================================================== RCS file: /cvsroot/mplayer/homepage/src/info.src.en,v retrieving revision 1.82 retrieving revision 1.83 diff -u -r1.82 -r1.83 --- info.src.en 20 Dec 2005 01:19:08 -0000 1.82 +++ info.src.en 28 Dec 2005 14:22:41 -0000 1.83 @@ -451,7 +451,7 @@  archives ::  search :: <a href="http://news.gmane.org/gmane.comp.video.mplayer.devel">search on gmane</a> :: - <a href="http://archives.free.net.ph/list/ffmpeg-devel.en.html">search on Free Network Group</a></li> + <a href="http://archives.free.net.ph/list/mplayer-dev-eng.en.html">search on Free Neltwork Group</a></li> <li>MPlayer-cvslog: Commits to the MPlayer CVS archive are sent to as diffs and discussed on this mailing list.  subscribe ::

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[PATCH] Choosing the video codec
by Guillaume Poirier 27 Dec '05

27 Dec '05

Hello folks! Here is a new section that I plan to add to MEncoder's doc that addresses one of the FAQ on the ML. Please have a look, give some feedbacks and fix if I'm being unclear Guillaume <sect2 id="menc-feat-dvd-mpeg4-codec"> <title>Choosing the video codec</title> <para> Choosing the video codec to use depends on several factors, some of which widely depends on personal tastes and technical constraints. </para> <itemizedlist> <listitem><para> <emphasis role="bold">Compression efficiency</emphasis>: It's quite easy to understand that newer generation of codecs are made to yield better picture quality than previous generations. Therefore, you can't be wrong choosing MPEG-4 AVC codecs like <systemitem class="library">x264</systemitem> instead of MPEG-4 codecs such as <systemitem class="library">libavcodec</systemitem> or <systemitem class="library">XviD</systemitem> (To get a better grasp of what are the fundamental differences between MPEG-4 ASP and MPEG-4 AVC, you should definitely read the entry "<ulink url="http://guru.multimedia.cx/?p=10">15 reasons why MPEG4 sucks</ulink>" of Michael Niedermayer's blog). Likewise, you should get better quality using MPEG-4 ASP instead of MPEG-2 codecs. <para> However, newer codecs which are in heavy development can suffer from some bugs which have not been spotted at the time you used that codec, ruining your video encode. That's unfortunately sometimes the price to pay for bleeding edge technologies. </para> <para> What's more, newer codecs means in general that you'd need some training time to get used to their set of options so that you know what to tune depending on what kind of picture quality you're after. </para> </para></listitem> <listitem><para> <emphasis role="bold">Hardware compatibility</emphasis>: Standalone video players are usually quite behind what is going on in video codec. That means that much only MPEG-2 and MPEG-4 ASP supported (beware: usually, not all MPEG-4 ASP features are supported). Please refer to the technical specs of your player for more informations. </para></listitem> <listitem><para> <emphasis role="bold">Best quality per fps</emphasis>: Codecs that have been around for some times (such as <systemitem class="library">libavcodec</systemitem> and <systemitem class="library">XviD</systemitem>) are usually heavily optimized using all kinds of smart algorithm and SIMD assembly code. That's why they tend to yield the best quality per fps. However, they may have some very advanced options that, if enabled, will make the encode really slow for marginal gains. </para> <para> If your are after blazing speed you should stick around the default settings of the video codec (which doesn't mean you should not play around with some of the options which are told about in other sections of this guide). </para> <para> You may also consider choosing a codec that can do multi-threaded processing. <systemitem class="library">libavcodec</systemitem> does allow that, but at the price of picture quality for some low speed gains. <systemitem class="library">XviD</systemitem> has some experimental patches available to boost encoding speed by about 50-60% in typical cases with low picture degradation. <systemitem class="library">x264</systemitem> also allows multi-threaded encoding, which currently speeds-up encoding by 30-35% while lowering PSNR by about 0.05dB. </para></listitem> <listitem><para> <emphasis role="bold">Personal tastes</emphasis>: This is were it gets almost irrational: For the same reason that some hanged on to DivX3 for years when newer codecs were already doing wonders, some folks will prefer <systemitem class="library">libavcodec</systemitem> over <systemitem class="library">XviD</systemitem> or <systemitem class="library">x264</systemitem>. <para> Make your own judgment, and don't always listen to what some people will tell you to do or think: the best codec is the one you master the best, and the one that looks better to your eyes! </para> </para></listitem> </itemizedlist> Please refer to the section <link linkend="menc-feat-selecting-codec">selecting codecs and container formats</link> to get a list of supported codecs. </para> </sect2>

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CVS: homepage/src projects.src.en,1.195,1.196
by syncmail＠mplayerhq.hu 27 Dec '05

27 Dec '05

CVS change done by Diego Biurrun CVS Update of /cvsroot/mplayer/homepage/src In directory mail:/var2/tmp/cvs-serv7308/src Modified Files: projects.src.en Log Message: mplayer_gui Index: projects.src.en =================================================================== RCS file: /cvsroot/mplayer/homepage/src/projects.src.en,v retrieving revision 1.195 retrieving revision 1.196 diff -u -r1.195 -r1.196 --- projects.src.en 27 Dec 2005 14:28:27 -0000 1.195 +++ projects.src.en 27 Dec 2005 14:41:54 -0000 1.196 @@ -252,6 +252,8 @@ GUI launcher by Ezekiel Victor</li> <li><a href="http://www.kliper.xt.pl/">kliper</a> multilanguage MPlayer GUI</li> + <li><a href="http://xthost.info/jasonyang/projects.html">mplayer_gui</a> + MPlayer GUI with embedded video window by Jason Yang</li> <li><a href="http://klibb.com/cgi-bin/wiki.pl/SimpleMplayer">SimpleMplayer</a> HTML, JavaScript and ActiveX MPlayer GUI by Mathias Dahl</li> <li><a href="http://chameleon.gazellevillage.com/~twerp/WinMPLauncher.html">WinMPlauncher</a>

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CVS: homepage/src projects.src.en,1.194,1.195
by syncmail＠mplayerhq.hu 27 Dec '05

27 Dec '05

CVS change done by Diego Biurrun CVS Update of /cvsroot/mplayer/homepage/src In directory mail:/var2/tmp/cvs-serv8212/src Modified Files: projects.src.en Log Message: kliper is now multilanguage and no longer Polish only. Index: projects.src.en =================================================================== RCS file: /cvsroot/mplayer/homepage/src/projects.src.en,v retrieving revision 1.194 retrieving revision 1.195 diff -u -r1.194 -r1.195 --- projects.src.en 22 Dec 2005 14:45:32 -0000 1.194 +++ projects.src.en 27 Dec 2005 14:28:27 -0000 1.195 @@ -251,7 +251,7 @@ <li><a href="http://www.ezekielvictor.com/_free_programs/mplayer_windows_gui.html">MPlayer Windows GUI</a> GUI launcher by Ezekiel Victor</li> <li><a href="http://www.kliper.xt.pl/">kliper</a> - Polish MPlayer GUI</li> + multilanguage MPlayer GUI</li> <li><a href="http://klibb.com/cgi-bin/wiki.pl/SimpleMplayer">SimpleMplayer</a> HTML, JavaScript and ActiveX MPlayer GUI by Mathias Dahl</li> <li><a href="http://chameleon.gazellevillage.com/~twerp/WinMPLauncher.html">WinMPlauncher</a>

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CVS: main/DOCS/xml/en encoding-guide.xml,1.37,1.38
by syncmail＠mplayerhq.hu 27 Dec '05

27 Dec '05

CVS change done by Guillaume Poirier CVS Update of /cvsroot/mplayer/main/DOCS/xml/en In directory mail:/var2/tmp/cvs-serv13902/DOCS/xml/en Modified Files: encoding-guide.xml Log Message: fixes suggested by Diego Index: encoding-guide.xml =================================================================== RCS file: /cvsroot/mplayer/main/DOCS/xml/en/encoding-guide.xml,v retrieving revision 1.37 retrieving revision 1.38 diff -u -r1.37 -r1.38 --- encoding-guide.xml 27 Dec 2005 09:34:57 -0000 1.37 +++ encoding-guide.xml 27 Dec 2005 13:01:22 -0000 1.38 @@ -1360,15 +1360,15 @@ <itemizedlist> <listitem><para> <emphasis role="bold">Compression efficiency</emphasis>: - It's quite easy to understand that newer-generation codecs are made + It is quite easy to understand that newer-generation codecs are made to yield better picture quality than previous generations. - Therefore, you cannot be wrong + Therefore, you cannot go wrong <footnote id='fn-menc-feat-dvd-mpeg4-codec-cpu'> - <para>Be careful, however: decoding DVD-resolution MPEG-4 AVC videos + <para>Be careful, however: Decoding DVD-resolution MPEG-4 AVC videos requires a fast machine (i.e. a Pentium 4 over 1.5Ghz or a Pentium M over 1Ghz). </para></footnote> - by choosing MPEG-4 AVC codecs like + when choosing MPEG-4 AVC codecs like <systemitem class="library">x264</systemitem> instead of MPEG-4 ASP codecs such as <systemitem class="library">libavcodec</systemitem> MPEG-4 or <systemitem class="library">XviD</systemitem>. @@ -1385,8 +1385,8 @@ This is simply the tradeoff for using bleeding-edge technology. </para> <para> - What's more, beginning to use a new codec requires that you spend some - time becoming familiar with its available options, so that you know what + What is more, beginning to use a new codec requires that you spend some + time becoming familiar with its options, so that you know what to adjust to achieve a desired picture quality. </para></listitem> @@ -1395,9 +1395,9 @@ It usually takes a long time for standalone video players to begin to include support for the latest video codecs. As a result, most only support MPEG-2 and MPEG-4 ASP - (beware: usually, not all MPEG-4 ASP features are supported). + (Beware: Usually, not all MPEG-4 ASP features are supported). Please refer to the technical specs of your player (if they are available), - or Google around for more information. + or google around for more information. </para></listitem> <listitem><para> @@ -1406,13 +1406,14 @@ <systemitem class="library">libavcodec</systemitem> MPEG-4 and <systemitem class="library">XviD</systemitem>) are usually heavily optimized with all kinds of smart algorithms and SIMD assembly code. - That's why they tend to yield the best quality per fps. + That is why they tend to yield the best quality quality per + encoding time ratio. However, they may have some very advanced options that, if enabled, will make the encode really slow for marginal gains. </para> <para> If you are after blazing speed you should stick around the default - settings of the video codec (which doesn't mean you should not experiment + settings of the video codec (which does not mean you should not experiment with some of the options which are mentioned in other sections of this guide). </para> @@ -1439,7 +1440,7 @@ <systemitem class="library">x264</systemitem>. </para> <para> - Make your own judgment, and don't always listen to what some people will + Make your own judgment, and do not always listen to what some people will tell you to do or think: The best codec is the one you master the best, and the one that looks best to your eyes on your display <footnote id='fn-menc-feat-dvd-mpeg4-codec-playback'>

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CVS: main/DOCS/man/en mplayer.1,1.1182,1.1183
by syncmail＠mplayerhq.hu 26 Dec '05

26 Dec '05

CVS change done by Ivan Kalvachev CVS Update of /cvsroot/mplayer/main/DOCS/man/en In directory mail:/var2/tmp/cvs-serv21341 Modified Files: mplayer.1 Log Message: The <=132 frame rule is only valid at MacroBlock level not at frame one. Following it gives worse compression even with IP sequence.(B-Frames doesn't accumulate error) Index: mplayer.1 =================================================================== RCS file: /cvsroot/mplayer/main/DOCS/man/en/mplayer.1,v retrieving revision 1.1182 retrieving revision 1.1183 diff -u -r1.1182 -r1.1183 --- mplayer.1 19 Dec 2005 18:04:37 -0000 1.1182 +++ mplayer.1 24 Dec 2005 16:13:12 -0000 1.1183 @@ -6771,14 +6771,15 @@ .TP .B keyint=<0\-300> maximum interval between keyframes in frames (default: 250 or one -keyframe every ten seconds in a 25fps movie). -Keyframes are needed for seeking as seeking is only possible to a keyframe, but +keyframe every ten seconds in a 25fps movie. This is recommended default for MPEG-4). +Most codecs require regular keyframes in order to limit the accumulation of mismatch error. +Keyframes are also needed for seeking as seeking is only possible to a keyframe, but keyframes need more space than other frames, so larger numbers here mean slightly smaller files but less precise seeking. 0 is equivalent to 1, which makes every frame a keyframe. Values >300 are not recommended as the quality might be bad depending upon decoder, encoder and luck. -For a strict MPEG-1/2/4 compliance this would have to be <=132. +It is a common for MPEG-1/2 to use values <=30. . .TP .B sc_threshold=<-1000000000\-1000000000>

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CVS: main/DOCS/man/en mplayer.1,1.1184,1.1185
by syncmail＠mplayerhq.hu 26 Dec '05

26 Dec '05

CVS change done by Guillaume Poirier CVS Update of /cvsroot/mplayer/main/DOCS/man/en In directory mail:/var2/tmp/cvs-serv20266/DOCS/man/en Modified Files: mplayer.1 Log Message: Adds lavc's brd_scale and updates vb_strategy Index: mplayer.1 =================================================================== RCS file: /cvsroot/mplayer/main/DOCS/man/en/mplayer.1,v retrieving revision 1.1184 retrieving revision 1.1185 diff -u -r1.1184 -r1.1185 --- mplayer.1 24 Dec 2005 18:08:32 -0000 1.1184 +++ mplayer.1 25 Dec 2005 21:33:15 -0000 1.1185 @@ -6790,7 +6790,7 @@ 1000000000 means no scene changes are detected (default: 0). . .TP -.B vb_strategy=<0\-1> (pass one only) +.B vb_strategy=<0\-2> (pass one only) strategy to choose between I/\:P/\:B-frames: .PD 0 .RSs @@ -6798,9 +6798,18 @@ Always use the maximum number of B-frames (default). .IPs 1 Avoid B-frames in high motion scenes. +.IPs 2 +Places B-frames more or less optimaly to yield maximal quality (slower) +You may want to reduce the speed impact of this option tuning the option +brd_scale. .RE .PD 1 . +.B brd_scale=<0\-10> +Downscales frames for dynamic B-frame decission (default: 0). +Speed should increase by a factor of 4 every time brd_scale is increased +by 1. +. .TP .B vpass=<1\-3> Activates internal two (or more) pass mode, only specify if you wish to

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CVS: main/DOCS/man/en mplayer.1,1.1185,1.1186
by syncmail＠mplayerhq.hu 26 Dec '05

26 Dec '05

CVS change done by Guillaume Poirier CVS Update of /cvsroot/mplayer/main/DOCS/man/en In directory mail:/var2/tmp/cvs-serv31733/DOCS/man/en Modified Files: mplayer.1 Log Message: Merry Christmas and happy cola-chugging! Index: mplayer.1 =================================================================== RCS file: /cvsroot/mplayer/main/DOCS/man/en/mplayer.1,v retrieving revision 1.1185 retrieving revision 1.1186 diff -u -r1.1185 -r1.1186 --- mplayer.1 25 Dec 2005 21:33:15 -0000 1.1185 +++ mplayer.1 26 Dec 2005 06:27:56 -0000 1.1186 @@ -6799,14 +6799,14 @@ .IPs 1 Avoid B-frames in high motion scenes. .IPs 2 -Places B-frames more or less optimaly to yield maximal quality (slower) +Places B-frames more or less optimally to yield maximum quality (slower). You may want to reduce the speed impact of this option tuning the option brd_scale. .RE .PD 1 . .B brd_scale=<0\-10> -Downscales frames for dynamic B-frame decission (default: 0). +Downscales frames for dynamic B-frame decision (default: 0). Speed should increase by a factor of 4 every time brd_scale is increased by 1. .

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CVS: main/DOCS/xml configure,1.17,1.18
by syncmail＠mplayerhq.hu 25 Dec '05

25 Dec '05

CVS change done by Diego Biurrun CVS Update of /cvsroot/mplayer/main/DOCS/xml In directory mail:/var2/tmp/cvs-serv4912 Modified Files: configure Log Message: Add current Cygwin tool paths. Index: configure =================================================================== RCS file: /cvsroot/mplayer/main/DOCS/xml/configure,v retrieving revision 1.17 retrieving revision 1.18 diff -u -r1.17 -r1.18 --- configure 12 Apr 2005 08:22:10 -0000 1.17 +++ configure 25 Dec 2005 17:38:19 -0000 1.18 @@ -9,6 +9,7 @@ echo "Searching for XML catalogs..." for _try_catalog in \ /etc/sgml/catalog \ + /usr/share/xml/docbook/*/catalog.xml \ /usr/share/sgml/docbook/xml-dtd-4.1.2/xmlcatalog \ /usr/share/apps/ksgmltools2/customization/en/catalog \ /usr/share/sgml/catalog \ @@ -117,6 +118,7 @@ echo "Searching for DTD..." for _try_dtd in \ + /usr/share/xml/docbook/*/docbookx.dtd \ /usr/share/sgml/docbook/dtd/xml/4.1.2/docbookx.dtd \ /usr/share/docbook-xml42/docbookx.dtd \ /usr/share/sgml/docbook/xml-dtd-4.1.2*/docbookx.dtd \

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