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

CVS: homepage/src news.src.en,1.237,1.238
by syncmail＠mplayerhq.hu 27 Aug '05

27 Aug '05

CVS change done by Reimar Döffinger CVS Update of /cvsroot/mplayer/homepage/src In directory mail:/var2/tmp/cvs-serv7417 Modified Files: news.src.en Log Message: typo fix (prevIOus) Index: news.src.en =================================================================== RCS file: /cvsroot/mplayer/homepage/src/news.src.en,v retrieving revision 1.237 retrieving revision 1.238 diff -u -r1.237 -r1.238 --- news.src.en 27 Aug 2005 00:56:17 -0000 1.237 +++ news.src.en 27 Aug 2005 08:35:20 -0000 1.238 @@ -46,7 +46,7 @@ <p> MPlayer 1.0pre7 and before<br> Up to now the only version where an exploit was demonstrated is -MPlayer 1.0pre7, but the bug is present also in all prevoius versions. +MPlayer 1.0pre7, but the bug is present also in all previous versions. </p>

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CVS: homepage/src news.src.en, 1.236, 1.237 dload.src.en, 1.164, 1.165
by syncmail＠mplayerhq.hu 27 Aug '05

27 Aug '05

CVS change done by Roberto Togni CVS Update of /cvsroot/mplayer/homepage/src In directory mail:/var2/tmp/cvs-serv23530 Modified Files: news.src.en dload.src.en Log Message: MPlayer-1.0pre7try2 Index: news.src.en =================================================================== RCS file: /cvsroot/mplayer/homepage/src/news.src.en,v retrieving revision 1.236 retrieving revision 1.237 diff -u -r1.236 -r1.237 --- news.src.en 26 Aug 2005 19:49:45 -0000 1.236 +++ news.src.en 27 Aug 2005 00:56:17 -0000 1.237 @@ -10,17 +10,86 @@ <a name="server_thanks">2005.08.26, Friday :: Heap buffer overflow in ad_pcm.c</a> <br><span class="poster">posted by Attila</span> </h2> +<p> There is a bug which, depending on configuration, can lead to a heap buffer overflow. If and under which circumstances this is exploitable is unclear to us as of now. -We have found a file that is supposed exploit it but could not make it work. -Still we do not want to put you at risk by waiting longer to publish this. -<br> -<a href="http://www1.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/libmpcodecs/ad_pcm.c.diff?…">Here</a> -is a patch that fixes the problem. -<br> +We are aware that at least one person was able to write a working exploit on +his system using an avi file with uncompressed pcm audio. +We have found a file that is supposed exploit it but could not make it work, but +still we do not want to put you at risk by waiting longer to publish this. +</p> + +<h3>Solution</h3> + +<p> +A +<a href="http://www1.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/libmpcodecs/ad_pcm.c.diff?…">patch</a> +for this problem was committed to CVS on Thu Aug 25 19:46:20 2005 UTC. +You can download a patch for Mplayer 1.0pre7 +<a href="http://www1.mplayerhq.hu/MPlayer/patches/ad_pcm_fix_20050826.diff">here.</a> +</p> + +<p> Adding "ac=-pcm," (notice the trailing ',') to the config file is a quick fix that should keep you safe as long as you don't use the -ac option on the commandline. Though you will not be able to play uncompressed audio then. +</p> + +<p> +We also prepared a new tarball for pre7 release with the fix already applied. +Please note that this is not a new release of MPlayer, if you want to have all +the new features introduced after pre7 you should use CVS version. +</p> + +<h3>Affected versions</h3> + +<p> +MPlayer 1.0pre7 and before<br> +Up to now the only version where an exploit was demonstrated is +MPlayer 1.0pre7, but the bug is present also in all prevoius versions. +</p> + + +<h3>Unaffected versions</h3> + +<p> +MPlayer 1.0pre7try2 and after<br> +CVS HEAD after Thu Aug 25 19:46:20 2005 UTC +</p> + +<p> +MPlayer 1.0pre7try2 can be downloaded from the following locations. Please be +kind to our server and use one of our many mirrors. +</p> + +<ul> + <li>Hungary 1 + <a href="http://www1.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">HTTP</a> + <a href="http://ftp1.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">FTP</a></li> + <li>Hungary 2 + <a href="http://www2.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">HTTP</a> + <a href="ftp://ftp2.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">FTP</a></li> + <li>USA + <a href="ftp://ftp3.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">FTP</a></li> + <li>Switzerland + <a href="http://www4.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">HTTP</a></li> + <li>USA 2 + <a href="http://ftp5.mplayerhq.hu/mplayer/releases/MPlayer-1.0pre7try2.tar.bz2">HTTP</a> + <a href="ftp://ftp5.mplayerhq.hu/mplayer/releases/MPlayer-1.0pre7try2.tar.bz2">FTP</a></li> + <li>Australia + <a href="ftp://ftp6.mplayerhq.hu/pub/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">FTP</a></li> + <li>USA 3 + <a href="http://www7.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">HTTP</a></li> + <li>Bulgaria + <a href="ftp://ftp8.mplayerhq.hu/mplayer/releases/MPlayer-1.0pre7try2.tar.bz2">FTP</a></li> + <li>Yugoslavia + <a href="http://www9.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">HTTP</a> + <a href="ftp://ftp9.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">FTP</a></li> +</ul> + +<p> +MD5SUM: <b>aaca4fd327176c1afb463f0f047ef6f4</b> +</p> </div> Index: dload.src.en =================================================================== RCS file: /cvsroot/mplayer/homepage/src/dload.src.en,v retrieving revision 1.164 retrieving revision 1.165 diff -u -r1.164 -r1.165 --- dload.src.en 21 Aug 2005 23:41:21 -0000 1.164 +++ dload.src.en 27 Aug 2005 00:56:17 -0000 1.165 @@ -40,25 +40,25 @@ <th>FTP</th> </tr> <tr> - <td>MPlayer v1.0pre7 source</td> + <td>MPlayer v1.0pre7try2 source</td> <td class="mirror"> [ -HU + <a href="http://www1.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">HU</a> | - <a href="http://www2.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7.tar.bz2">HU2</a> + <a href="http://www2.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">HU2</a> | - <a href="http://ftp5.mplayerhq.hu/mplayer/releases/MPlayer-1.0pre7.tar.bz2">US</a> + <a href="http://ftp5.mplayerhq.hu/mplayer/releases/MPlayer-1.0pre7try2.tar.bz2">US</a> | - <a href="http://www4.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7.tar.bz2">CH</a> + <a href="http://www4.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">CH</a> ] </td> <td class="mirror"> [ -HU + <a href="ftp://ftp1.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">HU</a> | - <a href="ftp://ftp2.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7.tar.bz2">HU2</a> + <a href="ftp://ftp2.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre7try2.tar.bz2">HU2</a> | - <a href="ftp://ftp5.mplayerhq.hu/mplayer/releases/MPlayer-1.0pre7.tar.bz2">US</a> + <a href="ftp://ftp5.mplayerhq.hu/mplayer/releases/MPlayer-1.0pre7try2.tar.bz2">US</a> ] </td> </tr>

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CVS: homepage/src news.src.en,1.235,1.236
by syncmail＠mplayerhq.hu 26 Aug '05

26 Aug '05

CVS change done by Attila Kinali CVS Update of /cvsroot/mplayer/homepage/src In directory mail:/var2/tmp/cvs-serv4340 Modified Files: news.src.en Log Message: add 2 linebreaks Index: news.src.en =================================================================== RCS file: /cvsroot/mplayer/homepage/src/news.src.en,v retrieving revision 1.235 retrieving revision 1.236 diff -u -r1.235 -r1.236 --- news.src.en 26 Aug 2005 19:46:43 -0000 1.235 +++ news.src.en 26 Aug 2005 19:49:45 -0000 1.236 @@ -14,8 +14,10 @@ If and under which circumstances this is exploitable is unclear to us as of now. We have found a file that is supposed exploit it but could not make it work. Still we do not want to put you at risk by waiting longer to publish this. +<br> <a href="http://www1.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/libmpcodecs/ad_pcm.c.diff?…">Here</a> is a patch that fixes the problem. +<br> Adding "ac=-pcm," (notice the trailing ',') to the config file is a quick fix that should keep you safe as long as you don't use the -ac option on the commandline. Though you will not be able to play uncompressed audio then.

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CVS: homepage/src news.src.en,1.234,1.235
by syncmail＠mplayerhq.hu 26 Aug '05

26 Aug '05

CVS change done by Attila Kinali CVS Update of /cvsroot/mplayer/homepage/src In directory mail:/var2/tmp/cvs-serv21933 Modified Files: news.src.en Log Message: post a small interims news entry about the buffer overflow Index: news.src.en =================================================================== RCS file: /cvsroot/mplayer/homepage/src/news.src.en,v retrieving revision 1.234 retrieving revision 1.235 diff -u -r1.234 -r1.235 --- news.src.en 21 Aug 2005 09:31:01 -0000 1.234 +++ news.src.en 26 Aug 2005 19:46:43 -0000 1.235 @@ -6,6 +6,23 @@ <h1>News</h1> <div class="newsentry"> +<h2> + <a name="server_thanks">2005.08.26, Friday :: Heap buffer overflow in ad_pcm.c</a> + <br><span class="poster">posted by Attila</span> +</h2> +There is a bug which, depending on configuration, can lead to a heap buffer overflow. +If and under which circumstances this is exploitable is unclear to us as of now. +We have found a file that is supposed exploit it but could not make it work. +Still we do not want to put you at risk by waiting longer to publish this. +<a href="http://www1.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/libmpcodecs/ad_pcm.c.diff?…">Here</a> +is a patch that fixes the problem. +Adding "ac=-pcm," (notice the trailing ',') to the config file is a quick fix that should keep you +safe as long as you don't use the -ac option on the commandline. Though you will not be able to play uncompressed +audio then. +</div> + + +<div class="newsentry"> <h2> <a name="server_thanks">2005.08.17, Wednesday :: thanks</a>

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CVS: main/DOCS/man/en mplayer.1,1.1074,1.1075
by syncmail＠mplayerhq.hu 24 Aug '05

24 Aug '05

CVS change done by Guillaume Poirier CVS Update of /cvsroot/mplayer/main/DOCS/man/en In directory mail:/var2/tmp/cvs-serv21480/DOCS/man/en Modified Files: mplayer.1 Log Message: Documents x264 visualization during encoding Index: mplayer.1 =================================================================== RCS file: /cvsroot/mplayer/main/DOCS/man/en/mplayer.1,v retrieving revision 1.1074 retrieving revision 1.1075 diff -u -r1.1074 -r1.1075 --- mplayer.1 22 Aug 2005 00:01:02 -0000 1.1074 +++ mplayer.1 23 Aug 2005 19:27:18 -0000 1.1075 @@ -8511,6 +8511,33 @@ For all other purposes, please use either the 'Global' PSNR, or the per-frame PSNRs printed by log=3. . +.TP +.B (no)visualize +Enable x264 visualizations during encoding. +If the x264 on your system supports it, a new window will be opened during +the encoding process, in which x264 will attempt to present an overview of +how each frame gets encoded. +Each block type on the visualized movie will be colored as follows: +.PD 0 +.RSs +.IPs red/pink +intra block +.IPs blue\ +inter block +.IPs green +skip block +.IPs yellow +B-block +.RE +.PD 1 +.RS +This feature can be considered experimental and subject to change. +In particular, it depends on x264 being compiled with visualizations enabled. +Note that as of writing this, x264 pauses after encoding and visualizing +each frame, waiting for the user to press a key, at which point the next +frame will be encoded. +.RE +. . .SS MPEG muxer (\-mpegopts) .

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[RFC] Advertising Slave mode
by Guillaume POIRIER 24 Aug '05

24 Aug '05

Hi there, I have the feeling that quite a lot of people are interested in the slave mode, but don't think about having a look in DOCS/tech/ Is there any reason slave mode is not included into, the XML doc (this could be a job for me)? I guess it's probably where it should be so people have a chance to read it... What do you think? Guillaume -- Live fast, die old, and make very sure everyone knows you were there. -- Alan Cox

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CVS: main/DOCS/xml/en encoding-guide.xml,1.10,1.11
by syncmail＠mplayerhq.hu 22 Aug '05

22 Aug '05

CVS change done by Guillaume Poirier CVS Update of /cvsroot/mplayer/main/DOCS/xml/en In directory mail:/var2/tmp/cvs-serv2403/en Modified Files: encoding-guide.xml Log Message: Encoding setting examples for x264 Index: encoding-guide.xml =================================================================== RCS file: /cvsroot/mplayer/main/DOCS/xml/en/encoding-guide.xml,v retrieving revision 1.10 retrieving revision 1.11 diff -u -r1.10 -r1.11 --- encoding-guide.xml 15 Aug 2005 22:46:27 -0000 1.10 +++ encoding-guide.xml 20 Aug 2005 20:13:03 -0000 1.11 @@ -3201,6 +3201,50 @@ </itemizedlist> </sect3> </sect2> + +<sect2 id="menc-feat-x264-example-settings"> +<title>Encoding settings examples</title> + +<para> + The following settings are examples of different encoding + options combinations that affect the speed VS quality tradeoff + given the same target bitrate. + + If you are aiming at perfect quality without too much thinking and + no size limitation, a low constant quantizer encode (like with + <option>qp_constant=18</option>) with no B-frames + (<option>bframes=0</option>) will probably look very good, but + will needlessly spend lots of bits to encode details that could be + coded more wisely using some advanced settings. +</para> + +<para> + All the encoding settings were tested on a 720x448 @30000/1001 fps + video sample, the target bitrate was 900kbps, and the machine was an + AMD-64 3400+ at 2400 Mhz in 64 bits mode. + Each encoding setting is followed by the encoding speed (in frames + per seconds), the compression efficiency loss (in percent of bitrate) + compared to the "very high quality" setting, and the PSNR loss (in dB). + Please understand that depending on your source your machine type + and the development breakthrough, you may get very different results. +</para> + +<itemizedlist> +<listitem><para><emphasis role="bold">Very high quality:</emphasis> +<option>subq=6:4x4mv:8x8dct:me=3:frameref=5:bframes=3:b_pyramid:weight_b</option> +6fps, 0%, 0dB. +</para></listitem> +<listitem><para><emphasis role="bold">High quality:</emphasis> +<option>subq=5:4x4mv:8x8dct:frameref=2:bframes=3:b_pyramid:weight_b:psnr</option> +13fps, -13%, -0.89dB. +</para></listitem> +<listitem><para><emphasis role="bold">Fast:</emphasis> +<option>subq=4:bframes=2:b_pyramid:weight_b:psnr</option> +17fps, -20%, -1.48dB. +</para></listitem> +</itemizedlist> +</sect2> + </sect1> <sect1 id="menc-feat-vcd-dvd">

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CVS: main/DOCS/man/en mplayer.1,1.1073,1.1074
by syncmail＠mplayerhq.hu 22 Aug '05

22 Aug '05

CVS change done by Diego Biurrun CVS Update of /cvsroot/mplayer/main/DOCS/man/en In directory mail:/var2/tmp/cvs-serv15517/DOCS/man/en Modified Files: mplayer.1 Log Message: typo, grammar Index: mplayer.1 =================================================================== RCS file: /cvsroot/mplayer/main/DOCS/man/en/mplayer.1,v retrieving revision 1.1073 retrieving revision 1.1074 diff -u -r1.1073 -r1.1074 --- mplayer.1 19 Aug 2005 12:16:51 -0000 1.1073 +++ mplayer.1 22 Aug 2005 00:01:02 -0000 1.1074 @@ -1883,7 +1883,7 @@ . .TP .B arts\ \ \ -audio output through the Arts daemon +audio output through the aRts daemon . .TP .B esd\ \ \ \ @@ -2717,7 +2717,7 @@ Slower but in some cases more correct output (default: disabled). .IPs swapinterval=<n> Minimum interval in displayed frames between to buffer swaps (default: 1). -1 is equivalent to enable VSYNC, 0 to disable VSYNC. +1 is equivalent to enabling VSYNC, 0 to disabling VSYNC. Values < 0 will leave it at the system default. This will limit the framerate to (horizontal refresh rate / n). Requires GLX_SGI_swap_control support to work.

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CVS: homepage/src dload.src.en,1.163,1.164
by syncmail＠mplayerhq.hu 21 Aug '05

21 Aug '05

CVS change done by Diego Biurrun CVS Update of /cvsroot/mplayer/homepage/src In directory mail:/var2/tmp/cvs-serv13729/src Modified Files: dload.src.en Log Message: Include lavf in the CVS description directly instead of mentioning it separately as an optional component. Index: dload.src.en =================================================================== RCS file: /cvsroot/mplayer/homepage/src/dload.src.en,v retrieving revision 1.163 retrieving revision 1.164 diff -u -r1.163 -r1.164 --- dload.src.en 17 Aug 2005 17:21:59 -0000 1.163 +++ dload.src.en 21 Aug 2005 23:41:21 -0000 1.164 @@ -1651,7 +1651,8 @@ <p> CVS MPlayer is not fully functional without a copy of the - <code>libavcodec</code> and <code>libavutil</code> libraries from + <code>libavcodec</code>, <code>libavformat</code> and + <code>libavutil</code> libraries from <a href="http://ffmpeg.org">FFmpeg</a>. Get FFmpeg CVS via </p> @@ -1662,8 +1663,9 @@ <p> When asked for a password, just hit enter. A directory named - <code>ffmpeg</code> will be created. Copy the <code>libavcodec</code> - and <code>libavutil</code> subdirectories into the <code>main</code> + <code>ffmpeg</code> will be created. Copy the + <code>libavcodec</code>, <code>libavformat</code> and + <code>libavutil</code> subdirectories into the <code>main</code> directory just created from the MPlayer checkout. </p> @@ -1674,18 +1676,10 @@ <pre> D/libavcodec//// + D/libavformat//// D/libavutil//// </pre> -<p> - <a href="http://ffmpeg.org">FFmpeg</a> also contains - <code>libavformat</code>, a library to decode container formats that - can optionally be used to extend MPlayer's container format support. - If you wish to use it, also copy <code>libavformat</code> into the - <code>main</code> directory and add another line to - <code>main/CVS/Entries</code>. -</p> - <h3><a name="viewcvs">Browsing MPlayer CVS by HTTP</a></h3>

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Re: [MPlayer-DOCS] CVS: homepage/src dload.src.en,1.159,1.160
by Reimar Döffinger 21 Aug '05

21 Aug '05

Hi, On Tue, Aug 02, 2005 at 01:19:33AM +0200, Diego Biurrun CVS wrote: > - <code>libavcodec</code> codec library from > + <code>libavcodec</code> and <code>libavcodec</code> libraries from C&P typo... > + <a href="http://ffmpeg.org">FFmpeg</a> also contains > + <code>libavformat</code>, a library to decode container formats that > + can optionally be used to extend MPlayer's container format support. > + If you wish to use it, also copy <code>libavformat</code> into the > + <code>main</code> directory and add another line to > + <code>main/CVS/Entries</code>. I still propose merging that with the above. Anyone who can't figure out how to leave it out themselves shouldn't do it IMHO. Greetings, Reimar Döffinger

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