Opened 8 years ago

Closed 8 years ago

#10245 closed Bug Report - General (fixed)

VDPAU playback issues on certain Danish FTA channels

Reported by: Kenni Lund [kenni a kelu dot dk] Owned by: markk
Priority: minor Milestone: 0.25
Component: MythTV - Video Playback Version: 0.24-fixes
Severity: medium Keywords:
Cc: Ticket locked: no

Description

Multiple Danish MythTV users have recently reported playback issues on 0.24-fixes with at least two Danish FTA channels (DR1+DR HD).

Below is a small sample of a recording which briefly has a pixelated picture when being played with the VDPAU profile. The sample doesn't give any pixelation on playback when a non-VDPAU playback profile is being used. Playing the clip with mplayer+VDPAU (mplayer -vo vdpau -vc ffmpeg12vdpau) doesn't give any pixelation either. Changing the vdpaubuffersize has no impact on the issue.

In the attached log (generated with "-v playback,extra"), the pixelation happens at around 17:30:22, but there doesn't seem to be any obvious errors at that time.

This has only been tested on 0.24-fixes, as I don't have access to a VDPAU-capable machine running master. The user who created this sample was also running 0.24-fixes.

The 20MB sample can be downloaded from the following link (scroll down on the page and click on "Regular download"): http://www.crocko.com/017DEE17AAAE4D6D83ED35EDA399B9F6/DR1_sample_with_VDPAU_playback_issues.mpg

Attachments (1)

verbose_logs_playback_extra.txt (21.6 KB) - added by Kenni Lund [kenni a kelu dot dk] 8 years ago.
-v playback,extra

Download all attachments as: .zip

Change History (3)

Changed 8 years ago by Kenni Lund [kenni a kelu dot dk]

-v playback,extra

comment:1 Changed 8 years ago by markk

Status: newaccepted

Using latest git master, the sample shows corruption using ffmpeg software decoding, VDPAU and VAAPI. Seems to play without issue on other players though - so I'm guessing that this is related to the version of ffmpeg we're running.

comment:2 Changed 8 years ago by Github

Milestone: unknown0.25
Resolution: fixed
Status: acceptedclosed

ffmpeg: fix slice threading for mpeg2 field picture mode

Backport of ffmpeg commit f71142496931d264cee

Closes #10281 Closes #10245

Signed-off-by: Mark Kendall <mkendall@…>

Branch: master Changeset: 61a9d5a6ba630e79490564e03b4033cd62d209e9

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