VP6 video playback freeze after few frames

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Playing an .flv file with VP6 video codec mplayer plays only first few frames and then freezes. If using -nosound option Ctrl+C in console is needed to exit from mplayer ('Q' does not work). Without -nosound option it behaves slightly differently - video freezes and audio continues playing; after whole file is played video playback resumes (now without audio because it is already finished). Also it is possible to exit with 'Q' if not using -nosound.

Strace shows as if it loops endlessly in module sleep_timer calling:

nanosleep({18446744073709549469, 18446744073225903616}, NULL) = -1 EINVAL (Inval
id argument)

Attached is the sample video with which the issue is reproducible and also console output and strace output. No config files were present in /etc/ nor HOME. Mplayer was run as:

strace -o mplayer.strace mplayer -nosound -nocache -msglevel all=9 -msgmodule vp6-sample-1.flv > mplayer.out

Version of mplayer is: SVN-r29796-4.4.3 but it was reproducible also with SVN-r30554-4.4.3. In both case with ffmpeg SVN-r20373.

ffplay is able to play this video correctly.

Video was captured from flash stream at web page ​http://www.davidtlig.org.uk/webcam.html using flvstreamer utility.

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Sample video file

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Console output (with options -msglevel all=9 -msgmodule)

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strace output