[mythtv-users] auto-transcode and keyframe indexing
Nicolas Will
nico at youplala.net
Tue Dec 2 23:14:19 UTC 2008
On Mon, 2008-12-01 at 22:36 +0000, Nicolas Will wrote:
> Hello all,
>
> I am a DVB-T user.
>
> I am using the lossless MPEG-2 transcode to go from transport streams to
> program streams and save the average 20% disk space.
>
> I have set the commercial detection to run after the transcode.
>
> So things should be running in that order:
> 1. record
> 2. transcode
> 3. generate keyframes index (as part of transcode)
> 4. commercial detection
>
> I have noticed that since I've set the auto-transcode that none of my
> recordings have a proper keyframe index.
>
> Manually re-indexing using mythcommflag makes ffwd and rwd fine again.
>
>
>
> I have looked at the logs, and yes, the transcode script forces a
> keyframes indexing.
>
> However, the transcode script appears to first generate an <original
> file name>.tmp file. The re-indexing also appears to be run against
> this .tmp file. Then there should a swap to the original file name, as
> the .tmp file is never mentioned again and the file is not on disk
> anymore.
>
>
>
> I have left a backend log starting at recording end and ending after the
> commercial detection here:
>
> http://www.youplala.net/~will/htpc/transcode_and_indexing_problem.txt
>
>
> I'm running Mythbuntu 8.10, using the packaged MythTV:
>
> nico at favia:~$ less /var/log/mythtv/mythbackend.log
> nico at favia:~$ mythbackend --version
> Please include all output in bug reports.
> MythTV Version : 18722
> MythTV Branch : branches/release-0-21-fixes
> Library API : 0.21.20080304-1
> Network Protocol : 40
> Options compiled in:
> linux profile using_oss using_alsa using_arts using_jack using_backend
> using_dbox2 using_dvb using_firewire using_frontend using_hdhomerun
> using_iptv using_ivtv using_joystick_menu using_libfftw3 using_lirc
> using_opengl_vsync using_opengl_video using_v4l using_x11 using_xrandr
> using_xv using_xvmc using_xvmcw using_xvmc_vld using_glx_proc_addr_arb
> using_bindings_perl using_bindings_python using_opengl
> using_ffmpeg_threads using_libavc_5_3 using_live
>
>
>
> Any help, pointers would be appreciated.
>
> Thanks!
>
> Nico
What? 24h and no solution?
I must have been spoilt or lucky before.
Or am I mistaking keyframe indexing with seektable building, and it is
so obvious that I am an idiot that nobody want to point it out?
Nico
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