id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc	mlocked
3046	Bogus position map causes fast forward locks in frontend after [12645]	anonymous	Janne Grunau	"Pressing FF when viewing recorded programmes hangs the frontend:

{{{
2007-02-04 23:50:36.664 Dec: DoFastForward(2995 (2971), don't discard frames)
2007-02-04 23:50:36.664 AFD: SeekReset(3006, 0, do flush, don't discard)
2007-02-04 23:50:36.664 AFD: SeekReset() flushing
[mpeg2video @ 0xb7551728]current_picture not initalized
2007-02-04 23:50:36.703 AFD Error: Unknown decoding error
2007-02-04 23:50:36.714 Avg read interval was 182 msec. 64K block size
2007-02-04 23:50:36.742 Avg read interval was 197 msec. 96K block size
2007-02-04 23:50:36.758 Avg read interval was 197 msec. 128K block size
2007-02-04 23:50:36.774 Avg read interval was 197 msec. 160K block size
2007-02-04 23:50:36.790 Avg read interval was 197 msec. 192K block size
2007-02-04 23:50:36.807 Avg read interval was 197 msec. 224K block size
2007-02-04 23:50:38.454 NVP: Play( 10.0, normal 0, unpause audio 1)
2007-02-04 23:50:41.140 NVP: prebuffering pause
2007-02-04 23:50:41.140 NVP: Waiting for prebuffer.. 0 AAAAAAAAAAAAAAAAAAAAAUAAAAAAAAA
}}}

The error condition appears to be:

[mpeg2video @ 0xb7551728]current_picture not initalized

I have no idea what causes this but to restore mythtv FF functionality you can backout FFMPEG libavcodec update in revision 7256 => 7538 as per the patch attached.

l8r
"	defect	closed	minor	0.21	mythtv	head	medium	fixed	mpeg12.c	Stuart Auchterlonie	0