[mythtv-commits] Ticket #12812: Most VDPAU deinterlace modes do not work with recent NVidia drivers

[MythTV]

#12812: Most VDPAU deinterlace modes do not work with recent NVidia drivers
-------------------------------------+-------------------------------------
     Reporter:  bjoernv@…            |      Owner:  jyavenard
         Type:  Bug Report -         |     Status:  new
  General                            |
     Priority:  minor                |  Milestone:  0.27.7
    Component:  MythTV - Video       |    Version:  0.27.6
  Playback                           |   Keywords:  playback, deinterlace,
     Severity:  medium               |  nvidia, vdpau
Ticket locked:  0                    |
-------------------------------------+-------------------------------------
 Currently to most recent stable NVidia graphics driver is version 367.27.

 After upgrading from the previous version 361.45.11 most VDPAU deinterlace
 modes do not work anymore. The problem started somewhere between version
 361 and 367. See my report here (version 364.19):
 http://www.gossamer-threads.com/lists/mythtv/users/599946

 I tested all available VDPAU deinterlace modes in Mythfrontend -> Setup ->
 Video -> Playback. I tested with Live TV and recorded TV.

 "Not working" means here, that I clearly see interlace artifacts.

 Working
 * One Field (1x, HW)
 * Temporal (1x, HW)

 Not working
 * Bob (2x, HW)
 * Advanced (1x, HW)
 * Temporal (2x, HW)
 * Advanced (2x, HW)

 It is interlaced MPEG 2 video material:

 {{{
 # mediainfo 17408_20160616082116.mpg
 General
 ID                                       : 769 (0x301)
 Complete name                            : 17408_20160616082116.mpg
 Format                                   : MPEG-TS
 File size                                : 34.2 MiB
 Duration                                 : 1mn 21s
 Overall bit rate mode                    : Variable
 Overall bit rate                         : 3 508 Kbps

 Video
 ID                                       : 385 (0x181)
 Menu ID                                  : 1 (0x1)
 Format                                   : MPEG Video
 Format version                           : Version 2
 Format profile                           : Main at Main
 Format settings, BVOP                    : Yes
 Format settings, Matrix                  : Custom
 Format settings, GOP                     : M=3, N=12
 Codec ID                                 : 2
 Duration                                 : 1mn 21s
 Bit rate                                 : 3 140 Kbps
 Maximum bit rate                         : 15.0 Mbps
 Width                                    : 720 pixels
 Height                                   : 576 pixels
 Display aspect ratio                     : 16:9
 Active Format Description                : Full frame 16:9 image
 Frame rate                               : 25.000 fps
 Standard                                 : PAL
 Color space                              : YUV
 Chroma subsampling                       : 4:2:0
 Bit depth                                : 8 bits
 Scan type                                : Interlaced
 Scan order                               : Top Field First
 Compression mode                         : Lossy
 Bits/(Pixel*Frame)                       : 0.303
 Stream size                              : 30.6 MiB (89%)
 }}}

 Unfortunately I can't provide a screenshot. Deinterface artefacts can only
 be seen on running video. If I stop the video artefacts go away.

 I attach the log file produced with "mythfrontend -v playback" during
 recorded video playback

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Ticket URL: <https://code.mythtv.org/trac/ticket/12812>
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