Hi!
Several recordings recorded from JSC Sports (S13.0E-318-500-8440) seem to have a weird framerate. The recordings were done in PES format with VDR 1.6, so there's no framerate setting in the info file and VDR will use 25 fps by default. This leads to a wrong recording length display (30 minutes for a recording that was actually 20 minutes long). VDR 1.7.22 is used for playback and with a small patch I can provide the framerate via the info.vdr (Which might be a useful feature anyways, patch attached.).
So far so good, but the recording seems to have a weird framerate
This is the recording:
501593483 2012-01-20 13:15:00.000000000 +0100 001.vdr 366032 2012-01-20 13:15:00.000000000 +0100 index.vdr 149 2012-01-20 12:55:05.000000000 +0100 info.vdr
The mtime diff between info.vdr and 001.vdr is 19:55 minutes. index.vdr is 366032 bytes in size, which divided by 8 gives a framerate of 38,29 fps.
Can anyone explain this framerate?
ffmpeg and mediainfo both say 25fps (see below) and VLC tells me it's 50fps.
When I convert the recording to TS using project-x, set the framerate in the info.vdr to 25 and reindex it with VDR 1.7.22, it still shows the wrong length.
bye,
Tobias
ffmpeg says:
Input #0, mpeg, from '001.vdr': Duration: 00:19:55.77, start: 59497.383833, bitrate: 3355 kb/s Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [PAR 64:45 DAR 16:9], 3049 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
and mediainfo says:
Complete name : 001.vdr Format : MPEG-PS Duration : 19mn 55s
Video Format : MPEG Video Format version : Version 2 Duration : 19mn 55s Width : 720 pixels Height : 576 pixels Display aspect ratio : 16:9 Frame rate : 25.000 fps Standard : PAL
On 24.01.2012 01:18, Tobi wrote:
Hi!
Several recordings recorded from JSC Sports (S13.0E-318-500-8440) seem to
This channel is encrypted, so I can't run any test on it. Is there an FTA channel that shows the same behavior?
have a weird framerate. The recordings were done in PES format with VDR 1.6, so there's no framerate setting in the info file and VDR will use 25 fps by default. This leads to a wrong recording length display (30 minutes for a recording that was actually 20 minutes long). VDR 1.7.22 is used for playback and with a small patch I can provide the framerate via the info.vdr (Which might be a useful feature anyways, patch attached.).
So far so good, but the recording seems to have a weird framerate
This is the recording:
501593483 2012-01-20 13:15:00.000000000 +0100 001.vdr 366032 2012-01-20 13:15:00.000000000 +0100 index.vdr 149 2012-01-20 12:55:05.000000000 +0100 info.vdr
The mtime diff between info.vdr and 001.vdr is 19:55 minutes. index.vdr is 366032 bytes in size, which divided by 8 gives a framerate of 38,29 fps.
Can anyone explain this framerate?
ffmpeg and mediainfo both say 25fps (see below) and VLC tells me it's 50fps.
When I convert the recording to TS using project-x, set the framerate in the info.vdr to 25 and reindex it with VDR 1.7.22, it still shows the wrong length.
Does this also happen if you make a recording directly with VDR 1.7.22?
Klaus
ffmpeg says:
Input #0, mpeg, from '001.vdr': Duration: 00:19:55.77, start: 59497.383833, bitrate: 3355 kb/s Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [PAR 64:45 DAR 16:9], 3049 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
and mediainfo says:
Complete name : 001.vdr Format : MPEG-PS Duration : 19mn 55s
Video Format : MPEG Video Format version : Version 2 Duration : 19mn 55s Width : 720 pixels Height : 576 pixels Display aspect ratio : 16:9 Frame rate : 25.000 fps Standard : PAL
Am 24.01.2012 10:40, schrieb Klaus Schmidinger:
This channel is encrypted, so I can't run any test on it. Is there an FTA channel that shows the same behavior?
Not that I'm aware of. And the behaviour on this channel changed only recently.
Does this also happen if you make a recording directly with VDR 1.7.22?
I didn't had a chance to try this yet, but if you don't have a clue what's happening here, I'll see if I can test this with VDR 1.7.22.
BTW: What happens if VDR records something and the frame rate changes in-between? Could this happen at all?
Tobias
On 24.01.2012 11:54, Tobi wrote:
Am 24.01.2012 10:40, schrieb Klaus Schmidinger:
This channel is encrypted, so I can't run any test on it. Is there an FTA channel that shows the same behavior?
Not that I'm aware of. And the behaviour on this channel changed only recently.
Does this also happen if you make a recording directly with VDR 1.7.22?
I didn't had a chance to try this yet, but if you don't have a clue what's happening here, I'll see if I can test this with VDR 1.7.22.
BTW: What happens if VDR records something and the frame rate changes in-between? Could this happen at all?
VDR only detects the frame rate at the beginning of a recording.
Klaus
On 24.01.2012 10:40, Klaus Schmidinger wrote:
Does this also happen if you make a recording directly with VDR 1.7.22?
Did this now. The info file says 25 fps, the index files is 179512 bytes big, VDR says the recording is 15min long, but the recording was 10 minutes. The raughly calculated frame rate is 38fps.
If you're interested in figuring out what's going on there, I can upload the recording somewhere or give you SSH access to the recorder.
Tobias
On 25.01.2012 13:24, Tobi wrote:
Did this now. The info file says 25 fps, the index files is 179512 bytes big, VDR says the recording is 15min long, but the recording was 10 minutes.
TSDoctor says 25fps interlaced and gives a length of 09:47
Tobias
On 25/01/2012 14:59, Tobi wrote:
On 25.01.2012 13:24, Tobi wrote:
Did this now. The info file says 25 fps, the index files is 179512 bytes big, VDR says the recording is 15min long, but the recording was 10 minutes.
TSDoctor says 25fps interlaced and gives a length of 09:47
Tobias
Sorry to interrupt, but I have a similar issue with 1 HD channel, the stream format changes during play and VDR shows a wrong length. At first, I though it was a frontend issue (I use xineliboutput) but perhaps it's the same issue. If this is the case, the channel is free (TF1 HD) but it uses H264+EAC formats and I don't know where is the support for these formats.
Regards,
Marc.
On 25.01.2012 13:24, Tobi wrote:
On 24.01.2012 10:40, Klaus Schmidinger wrote:
Does this also happen if you make a recording directly with VDR 1.7.22?
Did this now. The info file says 25 fps, the index files is 179512 bytes big, VDR says the recording is 15min long, but the recording was 10 minutes. The raughly calculated frame rate is 38fps.
If you're interested in figuring out what's going on there, I can upload the recording somewhere or give you SSH access to the recorder.
Yes, please upload it and send me the link.
Klaus
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Klaus Schmidinger -
Marc -
Tobi