[mythtv-commits] Ticket #9511: [patch] avformat decoder buffer underrun (DVB livetv)

[MythTV]

#9511: [patch] avformat decoder buffer underrun (DVB livetv)
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 Reporter:  Jiri Fojtasek <jiri.fojtasek@…>      |          Owner:  janne
     Type:  Bug Report                           |         Status:  new
 Priority:  critical                             |      Milestone:  unknown
Component:  MythTV - Video Playback              |        Version:  Trunk
 Severity:  high                                 |  Head
 Keywords:                                       |     Resolution:
                                                 |  Ticket locked:  0
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Comment (by Jiri Fojtasek <jiri.fojtasek@…>):

 I found a way to force my Philips lcd tv work at 50HZ (Fedora 14, Radeon
 X1300, DVI to HDMI reduction):

 {{{
 # output from command: cvt 1360 768 50
 # 1360x768 49.89 Hz (CVT) hsync: 39.56 kHz; pclk: 69.00 MHz
 # Modeline "1360x768_50.00"   69.00  1360 1416 1552 1744  768 771 781 793
 -hsync +vsync
 # Create new mode:
 xrandr --newmode "1360x768_50.00"   69.00  1360 1416 1552 1744  768 771
 781 793 -hsync +vsync
 xrandr --addmode DVI-0 1360x768_50.00
 xrandr -r 50
 # output from glxgears:
 # Running synchronized to the vertical refresh.  The framerate should be
 # approximately the same as the monitor refresh rate.
 # 250 frames in 5.0 seconds = 49.864 FPS
 }}}

 This created new mode, officially unsupported by this TV but it working so
 i do not care. The problem with underrun still happen so its definitely
 not 50/60hz playback issue. The problem with stuttering caused by
 50hz/60hz shift is gone and playback is smooth. Its most notable in videos
 with moving text.

 So the error message in patch should be changed to something else like
 this:

 "buffer underrun detected, trying to recover ..."

 Jiri

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Ticket URL: <http://code.mythtv.org/trac/ticket/9511#comment:14>
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