Re: [vdr] aspect ratio/videolength in vdr-1.7.10
On 10.12.2009 09:41, Christian Tramnitz wrote: > Klaus Schmidinger schrieb: >> You can take the size of the index file, divide it by 8 and >> you get the number of frames in the recording. The info file >> tells you the number of frames per second (at least with newer >> TS recordings). > > I don't think this calculation is always accurate (i.e. for h264/HD > recordings) right now. > For a 1080i recording the info file contains "F 25" (shouldn't it be 50 > frames for 1080i50?) > > Example (recorded with vdr 1.7.10): > # ls -la > insgesamt 7219260 > drwxr-xr-x 2 vdr vdr 59 28. Nov 15:04 . > drwxr-xr-x 3 vdr vdr 38 22. Nov 20:12 .. > -rw-r--r-- 1 vdr vdr 7389603764 22. Nov 22:13 1.ts > -rw-r--r-- 1 vdr vdr 2901984 22. Nov 22:13 index > -rw-r--r-- 1 vdr vdr 681 22. Nov 20:12 info > > # grep "^F\ " info > F 25 > > > 2901984 (size of the index file) / 8 = 362748 (frames) > 362748 / 25 (framelength according to info) = 241min 49sec (wrong!) > 362748 / 50 (real framelength) = 120min 54sec (actual length) Can you give me link to a one minute recording where I can see this? Klaus ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] aspect ratio/videolength in vdr-1.7.10
Klaus Schmidinger schrieb: You can take the size of the index file, divide it by 8 and you get the number of frames in the recording. The info file tells you the number of frames per second (at least with newer TS recordings). I don't think this calculation is always accurate (i.e. for h264/HD recordings) right now. For a 1080i recording the info file contains "F 25" (shouldn't it be 50 frames for 1080i50?) Example (recorded with vdr 1.7.10): # ls -la insgesamt 7219260 drwxr-xr-x 2 vdr vdr 59 28. Nov 15:04 . drwxr-xr-x 3 vdr vdr 38 22. Nov 20:12 .. -rw-r--r-- 1 vdr vdr 7389603764 22. Nov 22:13 1.ts -rw-r--r-- 1 vdr vdr 2901984 22. Nov 22:13 index -rw-r--r-- 1 vdr vdr 681 22. Nov 20:12 info # grep "^F\ " info F 25 2901984 (size of the index file) / 8 = 362748 (frames) 362748 / 25 (framelength according to info) = 241min 49sec (wrong!) 362748 / 50 (real framelength) = 120min 54sec (actual length) Best regards, Christian ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] aspect ratio/videolength in vdr-1.7.10
On Wed, Dec 9, 2009 at 1:32 PM, Klaus Schmidinger wrote: > On 09.12.2009 20:13, Halim Sahin wrote: >> Hi VDR User, >> On Mi, Dez 09, 2009 at 11:03:33 -0800, VDR User wrote: >>> On Wed, Dec 9, 2009 at 10:58 AM, Tony Houghton wrote: On Sat, 5 Dec 2009 21:34:42 +0100 Halim Sahin wrote: > How can I determine that from a vdr-1.7.10 recording? > Unfortunately vdrsync doesn't work any more :-(. I don't know how you could find the length; maybe it's a simple calculation from the size of the index.vdr file? >>> If the recordings store PCR, you could just read the first and last >>> PCR and do some quick math? >> >> Does vdr store the pcr? > > No, it doesn't. > > You can take the size of the index file, divide it by 8 and > you get the number of frames in the recording. The info file > tells you the number of frames per second (at least with newer > TS recordings). That makes it pretty easy! :) ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] aspect ratio/videolength in vdr-1.7.10
On 09.12.2009 20:13, Halim Sahin wrote: > Hi VDR User, > On Mi, Dez 09, 2009 at 11:03:33 -0800, VDR User wrote: >> On Wed, Dec 9, 2009 at 10:58 AM, Tony Houghton wrote: >>> On Sat, 5 Dec 2009 21:34:42 +0100 >>> Halim Sahin wrote: >>> How can I determine that from a vdr-1.7.10 recording? Unfortunately vdrsync doesn't work any more :-(. >>> I don't know how you could find the length; maybe it's a simple >>> calculation from the size of the index.vdr file? >> If the recordings store PCR, you could just read the first and last >> PCR and do some quick math? > > Does vdr store the pcr? No, it doesn't. You can take the size of the index file, divide it by 8 and you get the number of frames in the recording. The info file tells you the number of frames per second (at least with newer TS recordings). Klaus ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] aspect ratio/videolength in vdr-1.7.10
Hi VDR User, On Mi, Dez 09, 2009 at 11:03:33 -0800, VDR User wrote: > On Wed, Dec 9, 2009 at 10:58 AM, Tony Houghton wrote: > > On Sat, 5 Dec 2009 21:34:42 +0100 > > Halim Sahin wrote: > > > >> How can I determine that from a vdr-1.7.10 recording? > >> Unfortunately vdrsync doesn't work any more :-(. > > > > I don't know how you could find the length; maybe it's a simple > > calculation from the size of the index.vdr file? > > If the recordings store PCR, you could just read the first and last > PCR and do some quick math? Does vdr store the pcr? What do you mean with quick math? Can you post an example? Regards halim ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] aspect ratio/videolength in vdr-1.7.10
On Wed, Dec 9, 2009 at 10:58 AM, Tony Houghton wrote: > On Sat, 5 Dec 2009 21:34:42 +0100 > Halim Sahin wrote: > >> How can I determine that from a vdr-1.7.10 recording? >> Unfortunately vdrsync doesn't work any more :-(. > > I don't know how you could find the length; maybe it's a simple > calculation from the size of the index.vdr file? If the recordings store PCR, you could just read the first and last PCR and do some quick math? ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
Re: [vdr] aspect ratio/videolength in vdr-1.7.10
On Sat, 5 Dec 2009 21:34:42 +0100 Halim Sahin wrote: > How can I determine that from a vdr-1.7.10 recording? > Unfortunately vdrsync doesn't work any more :-(. I don't know how you could find the length; maybe it's a simple calculation from the size of the index.vdr file? To find the aspect ratio you could use: mplayer -ao null -vo null -frames 1 -identify 001.vdr | grep ASPECT -- TH * http://www.realh.co.uk ___ vdr mailing list vdr@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
