mirror of https://github.com/mpv-player/mpv
86 lines
3.3 KiB
Plaintext
86 lines
3.3 KiB
Plaintext
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Some words about Siemens-DVB card support. by A'rpi
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==========================================
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Requirements:
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~~~~~~~~~~~~~
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- Siemens DVB-S card or compatible (technotrend,galaxis,hauppage etc)
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see www.linuxtv.org for details and download latest driver there.
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- MPlayer-CVS, ffmpeg-libavcodec CVS are recommended for speed & pp.
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- Fast CPU - 1GHz+ recommended at least for software transcoding (divx->mpeg)
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How to enable?
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~~~~~~~~~~~~~~
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./configure should detect it. If didn't, force with ./configure --enable-dvb
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If you have ost headers at non-standard path, set it with:
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--with-extraincdir=<your DVB source dir>/ost/include
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make
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make install
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How to use?
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~~~~~~~~~~~
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Hardware decoding: (play standard mpeg 1/2 files)
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mplayer -ao mpegpes -vo mpegpes file.mpg|vob
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Software decoding/transcoding anything to mpeg1:
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mplayer -ao mpegpes -vo mpegpes -vop lavc yourfile.ext
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mplayer -ao mpegpes -vo mpegpes -vop fame,expand yourfile.ext
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Note: the DVB card only supports height 288 and 576 for PAL,
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240 and 480 for NTSC. For other heights, you MUST rescale it,
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by adding 'scale=w:h' to the -vop option, where w:h are width:height
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you want. Note, that DVB card accepts various widths, like 720, 704, 640,
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512, 480, 352 etc, so you don't need to scale horizontally in most cases!
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(the card will do hardware scaling in horizontal direction!)
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For example, for a 512x384 (aspect 4:3) divx try:
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mplayer -ao mpegpes -vo mpegpes -vop lavc,scale=512:576
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If you have widescreen movie, and you don't want to scale it to full
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height, you can use the 'expand=w:h' plugin to add black bands.
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For example, to view a 640x384 divx, try:
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mplayer -ao mpegpes -vo mpegpes -vop lavc,expand=640:576 file.avi
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If you have slow cpu to view 720x576 divx in full size, try to downscale:
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mplayer -ao mpegpes -vo mpegpes -vop lavc,scale=352:576 file.avi
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Or if still slow, try to downscale vertically too:
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mplayer -ao mpegpes -vo mpegpes -vop lavc,scale=352:288 file.avi
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Do you want osd, and subtitles? Use the expand plugin's osd feature!
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So, instead of expand=w:h or expand=w:h:x:y, use expand=w:h:x:y:1
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(the 5th parameter :1 at the end will enable osd rendering)
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You may want to move image up a bit to get bigger black zone for subtitles.
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And you may want to move subtitles up, if they're out of your TV screen,
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use the -subpos <0-100> switch (-subpos 80 is perfect for me).
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To play non-25fps movies on PAL TV, or with slow CPU, add option: -framedrop
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How to keep aspect ratio for DivX files?
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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To get the optimal scaling parameters (use hardware for X scaling, and
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scale Y by software, keeping the right aspect ratio), use the new 'dvbscale'
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plugin:
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for 3:4 TV: -vop lavc,expand=-1:576:-1:-1:1,scale=-1:0,dvbscale
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for 16:9 TV: -vop lavc,expand=-1:576:-1:-1:1,scale=-1:0,dvbscale=1024
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Mailing list:
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~~~~~~~~~~~~~
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http://mplayerhq.hu/mailman/listinfo/mplayer-dvb
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List's language is ENGLISH. Please avoid using german or other languages!
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Subscribe, and ask/discuss your problems here.
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I'll also post feature announces to this list.
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Future plans/TODO:
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~~~~~~~~~~~~~~~~~~
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- display OSD and subtitles using DVB card's OSD feature
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- better (more fluent) playback of non-25fps movies
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- realtime transcoding between mpeg2 <-> mpeg4 (partial decompression)
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