mirror of https://github.com/mpv-player/mpv
119 lines
4.8 KiB
Plaintext
119 lines
4.8 KiB
Plaintext
DXR3/H+ video/audio output plugins manual by David Holm
|
|
=======================================================
|
|
|
|
2002-01-06: I've started working on config support.
|
|
You can try -vo dxr3:swsync to disable hardware
|
|
syncing and use mplayers software syncer instead.
|
|
I'd like some feedback on which one works best
|
|
on your particular machine =). (I recommend
|
|
using em8300 0.10 or later)
|
|
|
|
2001-12-28: There is a whole bunch of updates since the
|
|
last time. For one thing, digital audio now
|
|
works thanks to Steven Brookes.
|
|
This is the first version to exclusively
|
|
use the dxr3's hardware sync. It seems as if
|
|
there are some bugs in the driver, so bugreports
|
|
will be appreciated.
|
|
Also, you will need to get the em8300 drivers
|
|
from cvs unless a version newer than 0.9.0 has
|
|
been released.
|
|
Note1: Seeking won't work with -vc mpegpes!
|
|
Note2: You now MUST use -ao dxr3 for proper
|
|
a/v sync!
|
|
|
|
2001-12-04: Thanks to Inaki Garci'a Etxebarria of
|
|
zapping.sourceforge.net we have now
|
|
abandoned rte since it caused problems for
|
|
users who didn't rtfm and compiled it with
|
|
ffmpeg support. Instead we are now using
|
|
libmp1e which is a modified version of mp1e.
|
|
|
|
1. Introduction
|
|
|
|
The DXR3 and Hollywood+ are two not too different mpeg-(1/2) and ac3
|
|
hardware playback cards that came at about the same time as the first
|
|
dvd-rom drives hit the market. At that time most computers weren't
|
|
powerful enough for synced software dvd playback. And even the faster
|
|
(intel-based) computers had troubles with artifacts.
|
|
Sigma Designs came up with the great idea to create a hardware
|
|
mpeg-(1/2), ac3 decoder. Sigma Designs are known for their realmagic
|
|
hardware (or they bought the company who came up with the first
|
|
realmagic boards, I don't know which).
|
|
Later Creative Labs thought, hey, we also wan't this product, and to
|
|
distribute it with our dvd-drives (the DVD Encore packages if I recall
|
|
correctly). So they bought the designs for the Hollywood plus and
|
|
replaced the circuit used to produce a proper video feed for tv's
|
|
called adv7170 or adv7175a depending on which h+ board you own with
|
|
a bt865. The reason for this is beyond my understanding as this seems
|
|
complete illogical to me, but I have had great experiences with
|
|
bt(brooktree) circuits in the past, so I don't mind.
|
|
Well, nowadays most people have no use for a mpeg-(1/2) or ac3
|
|
hardware decoder since most computers these days have no problem doing
|
|
this in software and have cycles left for posprocessing (removing of
|
|
artefacts and other garbage produced by compression).
|
|
These days, you have two uses for this card:
|
|
1. You have a slow computer which you use for vcd/dvd playback
|
|
2. You discover what I have done with the implementation of this as
|
|
an audio/video output device for mplayer (read on and you'll find
|
|
out).
|
|
|
|
|
|
|
|
2. Requirements
|
|
|
|
* First of all you will need the DXR3/H+ drivers properly installed.
|
|
Version 0.9.0 or later
|
|
|
|
* Run <mplayerdir>/configure and make sure that DXR3/H+ support = yes
|
|
|
|
From here on compilation (of at least my code ;) should go without any
|
|
problems.
|
|
|
|
|
|
|
|
3. Usage
|
|
|
|
After installation you will have two new outdevices in mplayer:
|
|
-vo dxr3 For video output
|
|
-ao dxr3 For audio output
|
|
|
|
MPEG-1, MPEG-2, VCD and DVD Notes
|
|
There are some notes to take into account here for optimum playback.
|
|
When playing any mpeg-(1/2) file, this including usage of the "-dvd"
|
|
and "-vcd" options you must either add the "-vc mpegpes" or edit
|
|
codecs.conf and make sure videocodec mpegpes is listed above mpeg12.
|
|
If you fail to do this you will only get software playback which kinda
|
|
spoils most of the useful features of this card except for tv-out ;).
|
|
Remember that if you edit the codecs.conf file and move the mpegpes
|
|
section will have to specify "-vc mpeg12" if you want to playback
|
|
any of these video types _without_ "-vo dxr3"!
|
|
Use -ac hwac3 if you want AC3 audio to be handled by hardware (please
|
|
send some feedback on this).
|
|
|
|
DIVX Notes
|
|
When playing divx's add "-vc odivx" for maximum performance.
|
|
I've switched to mp1e from ffmpeg so it should be lightning fast now.
|
|
libmp1e currently does not work on nonx86 processor and nonmmx processors.
|
|
I'm in the process of fixing this.
|
|
|
|
Other codecs:
|
|
No "-vc <codec>" switches should be required as mplayer will autodetect.
|
|
If you find an unsupported codec please contact me!
|
|
|
|
* Avoid running mplayer as root or setuid root as rtc timing seems to
|
|
slow down playback on the dxr3 for some users. I will look into this
|
|
at a later point as this hardly qualifies as a severe bug *
|
|
|
|
|
|
|
|
4. Contacting me
|
|
|
|
You can contact me either by e-mailing me, <dholm@iname.com> or by using
|
|
icq: 798427
|
|
Feedback, bugreports and general suggestions are appreciated (preferably
|
|
by e-mail). My name is David Holm for those of you who are incapable of
|
|
reading a heading. ;)
|
|
|
|
|