怎樣在 Linux 環境下，透過網絡共享數碼電視廣播 (DMB-TH 香港制式) ?

1. 購買 ASUS 華碩 My Cinema-U3100 Mini USB 2.0 高清數碼電視接受棒
2. 在某電腦，安裝 Ubuntu 9.0.4。建立一個用戶(以下假設是 yylam)
3. 插入接收棒後，打 lsusb，看看 USB Vendor ID / Product ID 是否如下：

   Bus 001 Device 005: ID 0b05:1721 ASUSTek Computer, Inc.

4. 下載 v4l-dvb
   • Click Application Menu, "Terminal". Assume you are in /home/yylam directory.
   • Type the following:
     • sudo apt-get install mercurial"
     • hg clone http://linuxtv.org/hg/v4l-dvb
     • cd v4l-dvb
     • hg update -d "2008-12-7"
   • Visit http://www.akbkhome.com/svn/asus_dvb_driver/src  (At the time of writing this document, the svn revision is 124372).
   • Download all the files there
     wget http://www.akbkhome.com/svn/asus_dvb_driver/src/dib3000mc.c
     wget http://www.akbkhome.com/svn/asus_dvb_driver/src/dib3000mc.h
     wget http://www.akbkhome.com/svn/asus_dvb_driver/src/dibusb-common.c
     wget http://www.akbkhome.com/svn/asus_dvb_driver/src/dibusb-mc.c
     wget http://www.akbkhome.com/svn/asus_dvb_driver/src/dvb-usb-firmware.c
     wget http://www.akbkhome.com/svn/asus_dvb_driver/src/dvb-usb-ids.h
     wget http://www.akbkhome.com/svn/asus_dvb_driver/src/dvb-usb-remote.c
     wget http://www.akbkhome.com/svn/asus_dvb_driver/src/dvb-usb-urb.c
     wget http://www.akbkhome.com/svn/asus_dvb_driver/src/initfrontend.h
     　
   • Type the following:

     sudo apt-get install tofrodos
     dos2unix *.c
     dos2unix *.h
     mv dvb-usb-ids.h linux/drivers/media/dvb/dvb-usb/
     mv dibusb-common.c linux/drivers/media/dvb/dvb-usb/
     mv dvb-usb-remote.c linux/drivers/media/dvb/dvb-usb/
     mv dvb-usb-firmware.c linux/drivers/media/dvb/dvb-usb/
     mv dvb-usb-urb.c linux/drivers/media/dvb/dvb-usb/
     mv dibusb-mc.c linux/drivers/media/dvb/dvb-usb/
     mv dib3000mc.c linux/drivers/media/dvb/frontends/
     mv dib3000mc.h linux/drivers/media/dvb/frontends/
     mv initfrontend.h linux/drivers/media/dvb/frontends/
     
     hg update
     
     (resolve conflict in linux/drivers/media/dvb/dvb-usb/dibusb-common.c, keep the hg-server (the first) one)
     
     make
     sudo make install
     sudo make insmod
     
     sudo cp u3100dmbth.fw /lib/firmware
     (8071 bytes, md5sum a21d620949ab7ca4ed306a9bcfc2688f)
     　

5. Check if successfully loaded the driver:
   • Unplug the DMT-TH USB stick.
   • Restart the PC.
   • Plug the DMB-TH USB stick. Wait a little while
   • type lsmod to see if you see the following lines:

   dib3000mc 24452 2 dvb_usb_dibusb_common
   dibx000_common 11524 1 dib3000mc

   • also see if /dev/dvb/adapter0 is created
     　
6. Quick check if can play using mplayer:
   　
   • Create a file channels.conf with the following content:

   J2:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:821:823:82 iNews:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:831:834:83 HDJade:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:851:853:85 Jade:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:811:813:1 Pearl:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:841:843:2 Home:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:111:113:11 World:482000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:161:163:16 His:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:131:133:13 Her:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:141:143:14 News:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:121:123:12 Plus:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:151:153:15 CCTV:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:171:172:17 HDTV:602000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_2_3:QAM_16:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:92:82:19

   
           Please note that: for Jade, Pearl, Home, Word, please change the frequency according to your district

   慈雲山	482 000 000
   青山	650 000 000
   飛鵝山	562 000 000
   金山	626 000 000
   九龍坑山	546 000 000
   南丫島	546 000 000
   聶高信山	634 000 000

   
   
   • sudo apt-get install dvb-apps
   • sudo tzap -r -c channels.conf His
     (of course you should choose, instead of His, Jade etc)

     you should be see the following:
     
     tuning to 602000000 Hz
     video pid 0x0083, audio pid 0x0085
     status 1f | signal b9f0 | snr 0000 | ber 10000000 | unc 00000000 | FE_HAS_LOCK
     status 1f | signal b9f0 | snr 0000 | ber b7f3914c | unc b7efb780 | FE_HAS_LOCK
     status 1f | signal b9f0 | snr 0000 | ber b7f3914c | unc b7efb780 | FE_HAS_LOCK
     status 1f | signal b9f0 | snr 0000 | ber b7f3914c | unc b7efb780 | FE_HAS_LOCK
     status 1f | signal b9f0 | snr 0000 | ber b7f3914c | unc b7efb780 | FE_HAS_LOCK
     status 1f | signal b9f0 | snr 0000 | ber b7f3914c | unc b7efb780 | FE_HAS_LOCK
     　

   • sudo apt-get install mplayer
   • mplayer /dev/dvb/adapter0/dvr0
   • You should be able to watch TVB now.
     　
7. Using VLC to share the video:
   
   sudo chown yylam /dev/dvb/adapter0/frontend0
   sudo chown yylam /dev/dvb/adapter0/
   vlc dvb:// :dvb-frequency=482000000 --programs=11 -I dummy --sout '#standard{access=http,mux=ts}'    (ATV Home)
   vlc dvb:// :dvb-frequency=482000000 --programs=16 -I dummy --sout '#standard{access=http,mux=ts}'    (ATV World) 
   vlc dvb:// :dvb-frequency=482000000 --programs=1   -I dummy --sout '#standard{access=http,mux=ts}'    (TVB Jade)
   vlc dvb:// :dvb-frequency=482000000 --programs=2   -I dummy --sout '#standard{access=http,mux=ts}'    (TVB Pearl) 

        Then you should be able to watch the TV at http://192.168.0.2:8080 using Windows Media Player Classic.

        To stream in Windows Media Player:

        vlc dvb:// :dvb-frequency=482000000 --programs=11 -I dummy --sout '#transcode{vcodec=WMV1,vb=350,acodec=mp3,ab=32,channels=1}:duplicate{dst=std{access=http,mux=asf,dst=:1234}}}'

        However, you need a special version of ffmpeg.