[mythtv] CVS Newbie

RoMaN moroni at romann.net
Tue Jan 21 14:51:14 EST 2003


hi there - i'm new to cvs - could someone provide me the information to access the CVS root and login to obtain the latest development packages of mythtv???

thank you.



On Tue, Jan 21, 2003 at 02:47:32PM -0600, John Joseph Roets wrote:
> Hello all.
> I'm running Myth and getting jerky/jittery video.
> Video is jittery to very jittery in live TV mode (and sometimes, in
> playback mode).  It seems that the mpeg4 setting gives me better
> quality, yet is much more jerky.  I've been recording with rtjpeg
> settings below, and have gotten very large files (~3300-5400 KB/hr.) as
> a result (I will ask that question next, after I see the file sizes
> generated today with mpeg4 settings).
> I was hoping that it was due to dma settings, but that is apparently not
> the case.
> Would I gain much in not compressing the audio?
> Is there something in my system which inherently causes/allows this?
> 
> Any help would be greatly appreciated.
> Thanks in advance.
> 
> I have:
> IBM Netvista P4 @ 1.8 GHz 256MB RAM
> ATI TV-Wonder VE
> Intel i810 onboard sound with ALSA
> nVidia Vanta/Vanta LT (AGP)
> RH 8.0 -- Gnome
> AVermedia AVerkey iMicro VGA to NTSC box
> 54 in. rear-projection bigscreen
> 
> - What version of MythTV are you running?
> 0.7
> 
> - settings file 
> 480x480
> rtjpeg
>  Quality=255
> mpeg4
>  TargetBitrate=2200
> Deinterlace=1
> All other settings in settings.txt are default, no change.
> 
> - What resolution?
> 480x480 (I've tried 640x480, as it should work fine with this box, and
> while it is clearer, it causes much slowdown/jitter).
> 
> - What codec are you using?
> rtjpeg -- less jitter, but still some.  Quality at 255
> mpeg4 -- seems better quality, but certainly more jitter.  Target
> bitrate at 2200.
> 
> - Are you using the nvidia binary driver?
> nvidia module
> 
> - Is your mysql colocated on the server with mythtv?
> Yes.
> 
> - What is your disk speed? 7200? 5400? Other?
> 7200
> 
> - HD info [hdparm -I /dev/hda]?
> /dev/hda:
> 
> ATA device, with non-removable media
>         Model Number:       MAXTOR 6L040J2
>         Serial Number:      662205637151
>         Firmware Revision:  A93.0500
> Standards:
>         Used: ATA/ATAPI-5 T13 1321D revision 1
>         Supported: 5 4 3 2 & some of 6
> Configuration:
>         Logical         max     current
>         cylinders       16383   16383
>         heads           16      16
>         sectors/track   63      63
>         --
>         CHS current addressable sectors:   16514064
>         LBA    user addressable sectors:   78177792
>         device size with M = 1024*1024:       38172 MBytes
>         device size with M = 1000*1000:       40027 MBytes (40 GB)
> Capabilities:
>         LBA, IORDY(can be disabled)
>         bytes avail on r/w long: 4      Queue depth: 1
>         Standby timer values: spec'd by Vendor, no device specific
> minimum
>         R/W multiple sector transfer: Max = 16  Current = 16
>         Recommended acoustic management value: 128, current value: 254
>         DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
> udma6
>              Cycle time: min=120ns recommended=120ns
>         PIO: pio0 pio1 pio2 pio3 pio4
>              Cycle time: no flow control=120ns  IORDY flow control=120ns
> Commands/features:
>         Enabled Supported:
>            *    READ BUFFER cmd
>            *    WRITE BUFFER cmd
>            *    Host Protected Area feature set
>            *    Look-ahead
>            *    Write cache
>            *    Power Management feature set
>                 Security Mode feature set
>            *    SMART feature set
>            *    Mandatory FLUSH CACHE command
>            *    Device Configuration Overlay feature set
>            *    Automatic Acoustic Management feature set
>                 SET MAX security extension
>            *    DOWNLOAD MICROCODE cmd
>            *    SMART self-test
>            *    SMART error logging
> Security:
>         Master password revision code = 65534
>                 supported
>         not     enabled
>         not     locked
>                 frozen
>         not     expired: security count
>         not     supported: enhanced erase
>         20min for SECURITY ERASE UNIT.
> HW reset results:
>         CBLID- above Vih
>         Device num = 0 determined by CSEL
> Checksum: correct
> 
> - What is your disk buffer size? 2MB? Other?
> [ cat /proc/ide/hda/cache ]
> 1819
> 
> - What are your dma, multcount, and prefetch settings?
> [ hdparm /dev/hda ]
> /dev/hda:
>  multcount    = 16 (on)
>  IO_support   =  0 (default 16-bit)
>  unmaskirq    =  0 (off)
>  using_dma    =  1 (on)
>  keepsettings =  0 (off)
>  readonly     =  0 (off)
>  readahead    =  8 (on)
>  geometry     = 4866/255/63, sectors = 78177792, start = 0
> 
> - What are your "elevator" settings? [ elvtune /dev/hda1 ]
> /dev/hda1 elevator ID           0
>         read_latency:           8192
>         write_latency:          16384
>         max_bomb_segments:      6
> 
> - What is your CPU and bus speed? [ cat /proc/cpuinfo ]
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 15
> model           : 1
> model name      : Intel(R) Pentium(R) 4 CPU 1.80GHz
> stepping        : 2
> cpu MHz         : 1794.252
> cache size      : 256 KB
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 2
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov
> pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
> bogomips        : 3567.44
> 
> - What is your memory type, speed, configuration, and size?
> 256MB
> 
> - What is your motherboard chipset? [ a function of `cat /proc/pci` ]
> [root at mythtv root]# cat /proc/pci
> PCI devices found:
>   Bus  0, device   0, function  0:
>     Host bridge: Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge
> (rev 3).
>       Prefetchable 32 bit memory at 0xf4000000 [0xf7ffffff].
>   Bus  0, device   1, function  0:
>     PCI bridge: Intel Corp. 82845 845 (Brookdale) Chipset AGP Bridge
> (rev 3).
>       Master Capable.  Latency=96.  Min Gnt=12.
>   Bus  0, device  30, function  0:
>     PCI bridge: Intel Corp. 82801BA/CA/DB PCI Bridge (rev 18).
>       Master Capable.  No bursts.  Min Gnt=6.
>   Bus  0, device  31, function  0:
>     ISA bridge: Intel Corp. 82801BA ISA Bridge (LPC) (rev 18).
>   Bus  0, device  31, function  1:
>     IDE interface: Intel Corp. 82801BA IDE U100 (rev 18).
>       I/O at 0x1800 [0x180f].
>   Bus  0, device  31, function  2:
>     USB Controller: Intel Corp. 82801BA/BAM USB (Hub #1) (rev 18).
>       IRQ 11.
>       I/O at 0x1820 [0x183f].
>   Bus  0, device  31, function  3:
>     SMBus: Intel Corp. 82801BA/BAM SMBus (rev 18).
>       IRQ 5.
>       I/O at 0x1810 [0x181f].
>   Bus  0, device  31, function  4:
>     USB Controller: Intel Corp. 82801BA/BAM USB (Hub #2) (rev 18).
>       IRQ 10.
>       I/O at 0x1840 [0x185f].
>   Bus  0, device  31, function  5:
>     Multimedia audio controller: Intel Corp. 82801BA/BAM AC'97 Audio
> (rev 18).
>       IRQ 5.?
>       I/O at 0x1c00 [0x1cff].
>       I/O at 0x1880 [0x18bf].
>   Bus  1, device   0, function  0:
>     VGA compatible controller: nVidia Corporation Vanta [NV6] (rev 21).
>       IRQ 5.
>       Master Capable.  Latency=248.  Min Gnt=5.Max Lat=1.
>       Non-prefetchable 32 bit memory at 0xf0000000 [0xf0ffffff].
>       Prefetchable 32 bit memory at 0xf8000000 [0xf9ffffff].
>   Bus  2, device   8, function  0:
>     Ethernet controller: Intel Corp. 82801BA/BAM/CA/CAM Ethernet
> Controller (rev 3).
>       IRQ 11.
>       Master Capable.  Latency=66.  Min Gnt=8.Max Lat=56.
>       Non-prefetchable 32 bit memory at 0xf2000000 [0xf2000fff].
>       I/O at 0x2000 [0x203f].
>   Bus  2, device  14, function  0:
>     Multimedia video controller: Brooktree Corporation Bt878 (rev 17).
>       IRQ 5.
>       Master Capable.  Latency=132.  Min Gnt=16.Max Lat=40.
>       Prefetchable 32 bit memory at 0xfb000000 [0xfb000fff].
>   Bus  2, device  14, function  1:
>     Multimedia controller: Brooktree Corporation Bt878 (rev 17).
>       IRQ 5.
>       Master Capable.  Latency=33.  Min Gnt=4.Max Lat=255.
>       Prefetchable 32 bit memory at 0xfb001000 [0xfb001fff].
> 
> - What is your kernel version? [ uname -a ]
> Linux mythtv 2.4.18-19.8.0 #1 Thu Dec 12 05:39:29 EST 2002 i686 i686
> i386 GNU/Linux
> 
> -- 
> 
> /**
>  * john joseph roets
>  * createTank
>  * www.createtank.com
>  * 785.550.3654
>  * joe at createtank.com
>  */ 
> 
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