[mythtv-users] mythtv can not work with HW MPEG2 encoder of AUSU PVR-416

Thu Jul 2 20:51:04 UTC 2009

On Thu, Jul 2, 2009 at 1:34 AM, Clark Lee <clarkchen900 at yahoo.com.cn> wrote:

>
> Dear Friends,
>
> Sorry to pop up the same question again. I am still struggling to get my
> hardware MPEG-2 encoder work.
>
> --------------------------------------------------------------------------
> I am using a AUSU PVR-416 card with mpeg2 encoder to improve the TV program
> quality. It is said to be compatible with AVerMedia_M150-D according to the
> wiki.
>
> However, mythtv failed on either Live TV or record. I am using the module
> driver and firmware provided by 2.6.24-24, and I have tested that either of
> the following actually works fine:
>
> cat /dev/video1 > foo.mpg # this generate a valide mpeg2 file.
> mplayer /dev/video1
>
> The video quality is very good, although not voice yet. I am very puzzeld
> why the mpeg2 can be accessed directly without any error, while mythtv can
> not work with it? I have noticed that mythbackend requires 'ivtv' driver,
> however, on ivtv's wiki, it says the drive won't work with AUSU PVR-416.
>
> Anyone has idea on how to make it work? thanks very much,
>
> Clark
> ------------Detail system information below------------------------
> code version: 0.21 release, compiled on ubuntu 8.10
>
> I have checked again and seems the ownership/permission are ok, as follow:
>
> clark at clark-desktop:~$ ls -l /dev/video? -l
> crw-rw----+ 1 root video 81, 0 2009-06-27 21:08 /dev/video0
> crw-rw----+ 1 root video 81, 1 2009-06-27 21:08 /dev/video1
>
> mythbackend, which is under debug, is run with user clark,
> and clark is a member of 'video' group, as shown in /etc/groups;
>
> clark at clark-desktop:/var/log/mythtv$ uname -a
> Linux clark-desktop 2.6.24-24-generic #1 SMP Wed Apr 15 15:54:25 UTC 2009
> i686 GNU/Linux
>
> clark at clark-desktop:/var/log/mythtv$ dmesg | grep cx88
> [   38.840800] cx88/0: cx2388x v4l2 driver version 0.0.6 loaded
> [   38.841116] cx88[0]: subsystem: 1043:4823, board: ASUS PVR-416
> [card=12,autodetected]
> [   38.841118] cx88[0]: TV tuner type 43, Radio tuner type -1
> [   38.885122] cx88/2: cx2388x MPEG-TS Driver Manager version 0.0.6 loaded
> [   38.996720] cx88[0]/0: found at 0000:01:08.0, rev: 5, irq: 5, latency:
> 32, mmio: 0xea000000
> [   39.058835] tuner 0-0043: chip found @ 0x86 (cx88[0])
> [   39.061781] tuner 0-0060: chip found @ 0xc0 (cx88[0])
> [   39.071776] cx88[0]/0: registered device video0 [v4l2]
> [   39.071793] cx88[0]/0: registered device vbi0
> [   39.071808] cx88[0]/0: registered device radio0
> [   39.073615] cx88[0]/2: cx2388x 8802 Driver Manager
> [   39.073643] cx88[0]/2: found at 0000:01:08.2, rev: 5, irq: 5, latency:
> 32, mmio: 0xeb000000
> [   39.088450] cx88/2: registering cx8802 driver, type: blackbird access:
> shared
> [   39.088453] cx88[0]/2: subsystem: 1043:4823, board: ASUS PVR-416
> [card=12]
> [   39.088455] cx88[0]/2: cx23416 based mpeg encoder (blackbird reference
> design)
> [   39.088687] cx88[0]/2: registered device video1 [mpeg]
> [   52.146264] cx88[0]/2-bb: Firmware and/or mailbox pointer not
> initialized or corrupted
> [   54.617516] cx88[0]/2-bb: Firmware upload successful.
> [   54.625647] cx88[0]/2-bb: Firmware version is 0x02060039
> [   54.688201] cx88[0]/2-bb: VIDIOC_TRY_FMT: w: 720, h: 480, f: 4
> [ 4180.709878] cx88[0]: irq mpeg  [0x100000] ts_err?*
> [ 4180.709888] cx88[0]/2-mpeg: general errors: 0x00100000
> [ 4808.387073] cx88[0]/2-bb: VIDIOC_G_FMT: w: 720, h: 480, f: 4
> [ 4808.388312] cx88[0]/2-bb: VIDIOC_S_FMT: w: 720, h: 576, f: 4
> [ 5068.357446] cx88[0]/2-bb: VIDIOC_G_FMT: w: 720, h: 576, f: 4
> [ 5068.357754] cx88[0]/2-bb: VIDIOC_S_FMT: w: 720, h: 576, f: 4
>
> clark at clark-desktop:/var/log/mythtv$ lsmod | grep cx88
> cx88_blackbird         21252  0
> cx2341x                13444  1 cx88_blackbird
> cx8802                 19588  1 cx88_blackbird
> cx8800                 35720  1 cx88_blackbird
> cx88xx                 65960  3 cx88_blackbird,cx8802,cx8800
> compat_ioctl32          2304  2 saa7134,cx8800
> ir_common              36100  3 saa7134,ir_kbd_i2c,cx88xx
> i2c_algo_bit            7300  1 cx88xx
> tveeprom               16656  1 cx88xx
> videodev               29440  4 saa7134,cx88_blackbird,cx8800,cx88xx
> v4l2_common            18304  7
> saa7134,cx88_blackbird,cx2341x,tuner,cx8800,cx88xx,videodev
> videobuf_dma_sg        14980  8
> saa7134_dvb,saa7134_alsa,saa7134,videobuf_dvb,cx88_blackbird,cx8802,cx8800,cx88xx
> videobuf_core          18820  7
> saa7134,videobuf_dvb,cx88_blackbird,cx8802,cx8800,cx88xx,videobuf_dma_sg
> btcx_risc               5896  3 cx8802,cx8800,cx88xx
> i2c_core               24832  14
> saa7134_dvb,saa7134,ir_kbd_i2c,tda1004x,tuner,tea5767,tda8290,tuner_simple,mt20xx,tea5761,cx88xx,i2c_algo_bit,tveeprom,nvidia
>
>
> clark at clark-desktop:/var/log/mythtv$
> clark at clark-desktop:/var/log/mythtv$ tail mythbackend.log
> irsend SEND_ONCE bjgehua One 2009-06-07 11:32:14.021 ret_pid(17846)
> child(17846) status(0x0)
> 2009-06-07 11:32:14.023 External Tuning program exited with no error
> 2009-06-07 11:32:15.100 AutoExpire: CalcParams(): Max required Free Space:
> 2.0 GB w/freq: 15 min
> 2009-06-07 11:32:15.174
>
> Not ivtv driver??
>
>
> 2009-06-07 11:32:15.183 MPEGRec(/dev/video1) Error: Can't open video
> device.
>            eno: Device or resource busy (16)
>
>
>
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>
>
>
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>

like asked in your first post.  What user is running mythbackend?  try
running mythbackend from the user that can access /dev/video* (Clark)

-- 
Mitchell
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