[mythtv-users] EXTREMELY choppy video

Fri Mar 18 03:17:39 UTC 2005

as root
chmod a+s /usr/local/bin/mythfrontend

then try it again
--- Paul Leppert <phlepper at gmail.com> wrote:

> Jarod,
> 
> Here is the result of mythfrontend -v playback and
> playing back a
> 1080i stream with the XvMC checkbox checked:
> 
> 2005-03-17 19:43:29.515 mythfrontend version:
> 0.17.20050130-1 www.mythtv.org
> 2005-03-17 19:43:29.515 Enabled verbose msgs :
> important general playback
> 2005-03-17 19:43:30.083 Switching to square mode
> (Titivillus)
> 2005-03-17 19:43:30.785 Registering Internal as a
> media playback plugin.
> 2005-03-17 19:43:30.792 Joystick disabled.
> 2005-03-17 19:43:30.810 Registering MythDVD DVD
> Media Handler as a media handler
> 2005-03-17 19:43:30.811 Registering MythDVD VCD
> Media Handler as a media handler
> 2005-03-17 19:43:30.885 Key I is already bound in
> context Gallery.
> 2005-03-17 19:43:31.037 Registering MythMusic Media
> Handler as a media handler
> 2005-03-17 19:43:31.310 Starting media monitor.
> 2005-03-17 19:43:38.203 All Programs
> 2005-03-17 19:43:39.908 Connecting to backend
> server:
> 192.168.18.90:6543 (try 1 of 5)
> 2005-03-17 19:43:39.914 Using protocol version 14
> adding pes stream at pid 0x51 with type 2
> adding pes stream at pid 0x54 with type 129
> 2005-03-17 19:43:41.009 AVFD
> 2005-03-17 19:43:41.010 AVFD: Opening Stream #0:
> codec id 2
> 2005-03-17 19:43:41.010 detectInterlace(Detect Scan,
> Detect Scan,
> 29.97, 1088) ->Interlaced Scan
> 2005-03-17 19:43:41.010 Interlaced: Interlaced Scan 
> video_height:
> 1088  fps: 29.97
> 2005-03-17 19:43:41.010 AVFD: Looking for decoder
> for 2
> 2005-03-17 19:43:41.010 AVFD
> 2005-03-17 19:43:41.010 AVFD: Opening Stream #1:
> codec id 86020
> 2005-03-17 19:43:41.010 AVFD: Looking for decoder
> for 86020
> 2005-03-17 19:43:41.012 Estimated bitrate = 19776
> 2005-03-17 19:43:41.346 Image size. dispxoff 0,
> dispyoff: 0, dispwoff:
> 0, disphoff: 0
> 2005-03-17 19:43:41.346 Image size. imgx 0, imgy: 0,
> imgw: 1920, imgh: 1080
> 2005-03-17 19:43:41.347 positionMap[ 0 ] == 3008.
> adding pes stream at pid 0x51 with type 2
> adding pes stream at pid 0x54 with type 129
> 2005-03-17 19:43:41.404 AVFD
> 2005-03-17 19:43:41.404 AVFD: Opening Stream #0:
> codec id 2
> 2005-03-17 19:43:41.405 detectInterlace(Detect Scan,
> Detect Scan,
> 29.97, 1088) ->Interlaced Scan
> 2005-03-17 19:43:41.405 Interlaced: Interlaced Scan 
> video_height:
> 1088  fps: 29.97
> 2005-03-17 19:43:41.405 AVFD: Looking for decoder
> for 3
> 2005-03-17 19:43:41.405 AVFD
> 2005-03-17 19:43:41.405 AVFD: Opening Stream #1:
> codec id 86020
> 2005-03-17 19:43:41.405 AVFD: Looking for decoder
> for 86020
> 2005-03-17 19:43:41.407 Estimated bitrate = 19776
> 2005-03-17 19:43:41.441 Position map filled from DB
> to: 53837
> 2005-03-17 19:43:41.442 SyncPositionMap prerecorded,
> from DB: 1995 entries
> 2005-03-17 19:43:41.442 Position map found
> 2005-03-17 19:43:41.448 Opening audio device
> 'spdif'.
> 2005-03-17 19:43:41.465 Over/underscan. V: 0, H: 0,
> XOff: 0, YOff: 0
> Using XvMC version: 1.0
> 2005-03-17 19:43:41.471 XvMCSurfaceTypes::find(w
> 1920, h 1, c 0, i 2,
> m 0,sw 0, sh 139, disp, p<= 139, 10880 <=p, port,
> surfNum)
> 2005-03-17 19:43:41.471 Trying XvMC port 139
> 2005-03-17 19:43:41.471 XvMCSurfaceTypes::find(w
> 1920, h 1, c 1, i 2,
> m 0,sw 0, sh 139, disp, p<= 139, 10880 <=p, port,
> surfNum)
> 2005-03-17 19:43:41.471 Trying XvMC port 139
> 2005-03-17 19:43:41.472 XvMCSurfaceTypes::find(w
> 1920, h 1, c 0, i 2,
> m 0,sw 0, sh 139, disp, p<= 139, 10880 <=p, port,
> surfNum)
> 2005-03-17 19:43:41.472 Trying XvMC port 139
> 2005-03-17 19:43:41.472 Found a suitable XvMC
> surface 0
> XvMC found and using MC surface
> 2005-03-17 19:43:41.472 Using XV port 139
> 2005-03-17 19:43:41.521 waiting for prebuffer...
> 2005-03-17 19:43:41.529 Image size. dispxoff 0,
> dispyoff: 0, dispwoff:
> 1376, disphoff: 768
> 2005-03-17 19:43:41.529 Image size. imgx 0, imgy: 0,
> imgw: 1920, imgh: 1080
> 2005-03-17 19:43:41.656 prebuffer wait timed out..
> 2005-03-17 19:43:43.759 Changing from None to
> WatchingPreRecorded
> 2005-03-17 19:43:43.759 Realtime priority would
> require SUID as root.
> picture structure FRAME
> 2005-03-17 19:43:43.788 XvMC will use bob
> deinterlacing
> 2005-03-17 19:43:43.788 Using deinterlace method
> bobdeint
> 2005-03-17 19:43:43.889 nVidiaVideoSync: VBlank
> ioctl did not work,
> unimplemented in this driver?
> 2005-03-17 19:43:43.889 DRMVideoSync: Could not open
> device
> /dev/dri/card0, No such file or directory
> 2005-03-17 19:43:43.889 RTCVideoSync: Could not set
> RTC frequency,
> Permission denied.
> 2005-03-17 19:43:43.889 Set video sync frame
> interval to 33366
> 2005-03-17 19:43:43.890 Using audio as timebase
> 2005-03-17 19:43:43.890 Video timing method: USleep
> with busy wait
> 2005-03-17 19:43:43.890 Refresh rate: 17357, frame
> interval: 33366
> 2005-03-17 19:43:43.890 waiting for prebuffer...
> 2005-03-17 19:43:44.025 prebuffer wait timed out..
> 2005-03-17 19:43:44.025 waiting for prebuffer...
> 2005-03-17 19:43:44.160 prebuffer wait timed out..
> 2005-03-17 19:43:44.160 waiting for prebuffer...
> 2005-03-17 19:43:44.230 A/V diverged by -30 frames,
> dropping frame to
> keep audio in sync
> 2005-03-17 19:43:44.233 dropping back
> audio_buffer_unused
> 2005-03-17 19:43:44.296 A/V diverged by 30 frames,
> extending frame to
> keep audio in sync
> 
> I get a bunch of the last message in a row and
> performance with XvMC
> is really poor (and CPU usage on an XP 2000+ is
> pegged at 100%).  I
> don't know what is different, but today I do get the
> black and white
> OSD, so XvMC is definitely working.  Additionally,
> non-XVMC is even
> worse (just get a blue screen with audio, no
> picture).
> 
> I'm assuming the following messages are bad?
> 
> 2005-03-17 19:43:43.889 nVidiaVideoSync: VBlank
> ioctl did not work,
> unimplemented in this driver?
> 2005-03-17 19:43:43.889 DRMVideoSync: Could not open
> device
> /dev/dri/card0, No such file or directory
> 2005-03-17 19:43:43.889 RTCVideoSync: Could not set
> RTC frequency,
> Permission denied.
> 
> Any ideas?
> 
> Here is my lspci:
> 
> [root at mythtvbe mythtv]# /sbin/lspci
> 00:00.0 Host bridge: VIA Technologies, Inc.
> VT8366/A/7 [Apollo KT266/A/333]
> 00:01.0 PCI bridge: VIA Technologies, Inc.
> VT8366/A/7 [Apollo KT266/A/333 AGP]
> 00:09.0 Multimedia audio controller: Creative Labs
> SB Live! EMU10k1 (rev 07)
> 00:09.1 Input device controller: Creative Labs SB
> Live! MIDI/Game Port (rev 07)
> 00:0a.0 Ethernet controller: Linksys NC100 Network
> Everywhere Fast
> Ethernet 10/100 (rev 11)
> 00:0b.0 Multimedia video controller: Internext
> Compression Inc iTVC16
> (CX23416) MPEG-2 Encoder (rev 01)
> 00:0c.0 Multimedia video controller: Conexant
> Winfast TV2000 XP (rev 05)
> 00:0c.2 Multimedia controller: Conexant: Unknown
> device 8802 (rev 05)
> 00:11.0 ISA bridge: VIA Technologies, Inc. VT8233
> PCI to ISA Bridge
> 00:11.1 IDE interface: VIA Technologies, Inc.
> VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master
> IDE (rev 06)
> 00:11.2 USB Controller: VIA Technologies, Inc.
> VT82xxxxx UHCI USB 1.1
> 
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