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Code Issues Releases Wiki Activity

DXR3 docs updated. Patch by David Holm <david@realityrift.com>, further

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spelling/consistency fixes by me.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7271 b3059339-0415-0410-9bf9-f77b7e298cf2
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diego 2002-09-04 20:22:07 +00:00
parent 139bb71285
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3 changed files with 51 additions and 33 deletions
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<P>You need an AC3 capable sound card, with digital out (SP/DIF). The card's
driver must properly support the AFMT_AC3 format (C-Media does). Connect
your AC3 decoder to the SP/DIF output, and use the <CODE>-ac hwac3</CODE>
option. It is experimental but known to work with C-Media cards and
Soundblaster Live! using ALSA (but not OSS) drivers.</P>
option. It is experimental but known to work with C-Media cards,
Soundblaster Live! using ALSA (but not OSS) drivers and DXR3/Hollywood+ MPEG
decoder cards.</P>
<H4><A NAME="libmad">2.2.2.3 libmad support</A></H4>

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@ -150,7 +150,7 @@
<LI><A HREF="video.html#vidix">2.3.1.14 VIDIX</A></LI>
<LI><A HREF="video.html#zr">2.3.1.15 Zr</A></LI>
<LI><A HREF="video.html#dvb">2.3.1.16 DVB</A></LI>
<LI><A HREF="video.html#dxr3">2.3.1.17 DXR3</A></LI>
<LI><A HREF="video.html#dxr3">2.3.1.17 DXR3/Hollywood+</A></LI>
<LI><A HREF="video.html#tv-out">2.3.1.A TV-out support</A>
<UL>
<LI><A HREF="video.html#tv-out_matrox">2.3.1.A.1 Matrox G400 cards</A></LI>

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@ -1176,53 +1176,68 @@ for 16:9 TV: -vop lavc,expand=-1:576:-1:-1:1,scale=-1:0,dvbscale=1024
decompression).</P>
<H4><A NAME="dxr3">2.3.1.17 DXR3</A></H4>
<H4><A NAME="dxr3">2.3.1.17 DXR3/Hollywood+</A></H4>
<P><B>MPlayer</B> supports hardware accelerated playback with the Creative DXR3
and Sigma Designs Hollywood Plus cards.</P>
and Sigma Designs Hollywood Plus cards. These cards both use the em8300 MPEG
decoder chip from Sigma Designs.</P>
<P>First of all you will need properly installed DXR3/H+ drivers, version
0.12.0 or later. You can find the drivers and installation instructions at
the <A HREF="http://dxr3.sourceforge.net/">DXR3 &amp; Hollywood Plus for
Linux</A> site. Configure should detect your card automatically, compilation
should go without any problems.</P>
should go without problems.</P>
<H4>Usage:</H4>
<DL>
<DT><CODE>-vo dxr3:&lt;noprebuf&gt;:&lt;codec&gt;:&lt;device&gt;</CODE></DT>
<DD>Where <CODE>&lt;noprebuf&gt;</CODE> specifies turning off prebuffering.
This is done automatically on Athlons. If playback is out of sync try
disabling prebuffering. If noprebuf is left out prebuffering is enabled
(except on Athlons).
<BR>
<CODE>&lt;codec&gt;</CODE> = fame/avcodec, avcodec produces better quality
output, but fame is faster for those of you with slow machines. The default is
to use libavcodec. Note that you need libavcodec properly installed (read
DOCS/codecs.html).
<BR>
<DT><CODE>-vo dxr3:noprebuf:&lt;device&gt;</CODE></DT>
<DD><CODE>noprebuf</CODE> turns off prebuffering. Prebuffering is a feature
of the em8300 chip that enables it to hold more than one frame of video at
a time. This means that when you are running with prebuffering (default)
<B>MPlayer</B> will try to keep the video buffer filled with data at all
times. If you are on a slow machine <B>MPlayer</B> will probably use close
to, or precisely 100% of CPU. This is especially common if you play pure MPEG
streams (like DVDs, SVCDs a.s.o.) since <B>MPlayer</B> will not have to
reencode it to MPEG it will fill the buffer very fast.<BR>
With prebuffering video playback is <B>much</B> less sensitive to other
programs hogging the CPU, it will not drop frames unless applications hog
the CPU for a long time.<BR>
Prebuffering does not work on all machines (especially Athlons where it is
turned off automatically). If you experience problems with video/audio sync
use <CODE>noprebuf</CODE>. When running without prebuffering the em8300 is
much more sensitive to CPU load, so it is highly suggested that you turn on
<B>MPlayer's</B> <CODE>-framedrop</CODE> option to avoid further loss of
sync.<BR>
<CODE>&lt;device&gt;</CODE> = device number to use if you have more than one
em8300 card.
<BR>
Any of these options may be left out, but they must be specified in this
order, i.e. <CODE>dxr3:fame</CODE> works, <CODE>dxr3:1</CODE> works, but
<CODE>dxr3:1:avcodec</CODE> will not.</DD>
exact order, i.e. <CODE>dxr3:noprebuf</CODE> works, <CODE>dxr3:1</CODE>
works, but <CODE>dxr3:1:noprebuf</CODE> will not.</DD>
<DT><CODE>-ao oss:/dev/em8300_ma-X</CODE></DT>
<DD>For audio output, where <CODE>X</CODE> is the device number
(0 if one card).</DD>
<DT><CODE>-ac hwac3</CODE></DT>
<DD>For digital instead of analog audio output.</DD>
<DT><CODE>-vc mpegpes</CODE></DT>
<DD>Force hardware acceleration, only works with MPEG1/2.</DD>
<DT><CODE>-aop list=resample:fout=xxxxx</CODE></DT>
<DD>If sample rate is below 44100Hz, select either 44100Hz or 48000Hz
depending on which one matches closest. I.e. if the movie uses 22050Hz use
44100Hz as 44100 / 2 = 22050, if it is 24000Hz use 48000Hz as 48000 / 2 = 24000
and so on. This does not work with digital audio output
(<CODE>-ac hwac3</CODE>).</DD>
<DD>The em8300 cannot play back samplerates lower than 44100Hz. If the sample
rate is below 44100Hz select either 44100Hz or 48000Hz depending on which
one matches closest. I.e. if the movie uses 22050Hz use 44100Hz as
44100 / 2 = 22050, if it is 24000Hz use 48000Hz as 48000 / 2 = 24000 and so
on. This does not work with digital audio output (<CODE>-ac hwac3</CODE>).</DD>
<DT><CODE>-vop lavc/fame</CODE></DT>
<DD>To watch non-MPEG content on the em8300 (i.e. DivX or RealVideo) you have
to specify an MPEG1 video filter such as libavcodec (lavc) or libfame
(fame). At the moment lavc is both faster and gives better image quality, it
is suggested that you use that unless you have problems with it. See the man
page for further info about <CODE>-vop lavc/fame</CODE>.</DD>
<DT><CODE>-ac hwac3</CODE></DT>
<DD>The em8300 supports playing back AC3 audio (surround sound) through the
digital audio output of the card. Read
<A HREF="codecs.html#hardware_ac3">hardware AC3</A> section for further
information on AC3.</DD>
</DL>
<H4>Overlay</H4>
@ -1236,14 +1251,16 @@ for 16:9 TV: -vop lavc,expand=-1:576:-1:-1:1,scale=-1:0,dvbscale=1024
<P>MPEG1/2 content should now automatically be detected by <B>MPlayer</B> and
it will use the hardware acceleration of the DXR3 to play it. If not, you can
force it to hardware acceleration with <CODE>-vc mpegpes</CODE>. Also, if you
plan to use any postprocessing filters you must use <CODE>-vc
mpeg12</CODE>.</P>
plan to use postprocessing filters you must use <CODE>-vc mpeg12</CODE>.</P>
<P>In some instances, subtitles may not appear properly in sync with the A/V
stream when using hardware decoding (<CODE>-vc mpegpes</CODE>). This is a
known bug. The em8300 will also improperly handle subtitles that are too big,
and may hang for a second or two. At this time, the only workaround is to use
<CODE>-vc mpeg12</CODE> when viewing DVDs with subtitles.</P>
<CODE>-vc mpeg12</CODE> when viewing DVDs with subtitles. When running with
<CODE>-vc mpeg12</CODE> <B>MPlayer</B> will reencode video to MPEG (even if it
already is MPEG). This means that it will need more CPU power, and you might
loose some picture quality.</P>
<H4><A NAME="tv-out">2.3.1.A TV-out support</A></H4>