Skipping problem - which tools to redo timeline? and/or trim start?

[Handy.Man]

Ah yes, I tried it a long time ago to see if it would fix a problem. Unfortunately it remembers and won't let me try the new version ;(

Try it on another computer ....

[martint123]

<sigh> I am finding out what the "A" in ADSL means - still uploading the two snips to dropbox! says an hour remaining.... methinks my ISP is taking the piss.....

Logs attached in the meanwhile. playing the file with blank screen for a couple of minutes and then about 10 seconds of video before I stopped it.
I'm guessing the first bit could well be encrypted data before the network and connection to my linux server got stabilised??

Aac or mpg/ac3 audio?

Mediainfo output

Code:

General
ID                                       : 1 (0x1)
Complete name                            : Z:\video\Formula One_20140419_06000845.ts
Format                                   : MPEG-TS
File size                                : 13.7 GiB
Duration                                 : 2h 47mn
Overall bit rate mode                    : Variable
Overall bit rate                         : 11.7 Mbps

Video
ID                                       : 512 (0x200)
Menu ID                                  : 3836 (0xEFC)
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format version                           : Version 2
Format profile                           : Main@L4.0
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 4 frames
Format settings, GOP                     : M=4, N=12
Codec ID                                 : 27
Duration                                 : 2s 120ms
Bit rate                                 : 10.6 Mbps
Maximum bit rate                         : 20.0 Mbps
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 25.000 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First
Bits/(Pixel*Frame)                       : 0.204
Stream size                              : 2.67 MiB (0%)
Encryption                               : NDS Videoguard 1/2
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio #1
ID                                       : 640 (0x280)
Menu ID                                  : 3836 (0xEFC)
Format                                   : MPEG Audio
Format version                           : Version 1
Format profile                           : Layer 2
Codec ID                                 : 4
Duration                                 : 48ms
Bit rate mode                            : Constant
Bit rate                                 : 192 Kbps
Channel(s)                               : 2 channels
Sampling rate                            : 48.0 KHz
Compression mode                         : Lossy
Delay relative to video                  : -839ms
Stream size                              : 1.13 KiB (0%)
Language                                 : nar
Encryption                               : NDS Videoguard 1/2

Audio #2
ID                                       : 660 (0x294)
Menu ID                                  : 3836 (0xEFC)
Format                                   : AC-3
Format/Info                              : Audio Coding 3
Mode extension                           : CM (complete main)
Format settings, Endianness              : Big
Codec ID                                 : 6
Duration                                 : 160ms
Bit rate mode                            : Constant
Bit rate                                 : 384 Kbps
Channel(s)                               : 2 channels
Channel positions                        : Front: L R
Sampling rate                            : 48.0 KHz
Bit depth                                : 16 bits
Compression mode                         : Lossy
Delay relative to video                  : -780ms
Stream size                              : 7.50 KiB (0%)
Language                                 : English
Encryption                               : NDS Videoguard 1/2

Text
ID                                       : 576 (0x240)-888
Menu ID                                  : 3836 (0xEFC)
Format                                   : Teletext Subtitle
Language                                 : English

Menu
ID                                       : 257 (0x101)
Menu ID                                  : 3836 (0xEFC)
Duration                                 : 2h 47mn
List                                     : 512 (0x200) (AVC) / 640 (0x280) (MPEG Audio, nar) / 660 (0x294) (AC-3, English) / 576 (0x240) () / 2309 (0x905) () / 1035 (0x40B) ()
Language                                 :  / nar / English

[mvallevand]

<sigh> I am finding out what the "A" in ADSL means - still uploading the two snips to dropbox! says an hour remaining.... methinks my ISP is taking the piss.....

Logs attached in the meanwhile. playing the file with blank screen for a couple of minutes and then about 10 seconds of video before I stopped it.
I'm guessing the first bit could well be encrypted data before the network and connection to my linux server got stabilised??

The NMT isn't crashing but it isn't finding valid video

Raw PTS received:0 (00 00 00 00 00 00)

Martin

[whurlston]

Since it's not AAC, the ffmpeg included with NPVR should work. Create a batch file with the following (replace "XX" with the number of seconds to cut from the start of the file and adjust path to ffmpeg if necessary):

Code:

set file=%~d1%~p1%~n1.bak
ren "%~d1%~p1%~n1.ts" "%~n1.bak"
"c:\Program Files\NPVR\Other\ffmpeg.exe" -ss XX -i "%file%" -f mpegts -vcodec copy -acodec copy "%~d1%~p1%~n1.ts"

Drag and drop the problem file on it.

It should rename your file to .bak and remux it.

If it doesn't work, send me a link to the sample

[martint123]

Two samples. The first is the requested 100mb and is all blank viewing. The second is a 200mb chunk (zipped to fit the free file hosting limit) and has around 10 secs of video at the end of the sample - it starts around 1:24.
I have fired up tsdoctor on a new pc and it is currently running "fixing PCR" and has been for about 30 minutes.

Thank you mr whurlston, I'll give your ffmpeg script a try. I know it is a powerful tool, but I can't seem to get my head round video options and code words!. More later when I've tried it.

100mb http://www8.zippyshare.com/v/5231768/file.html
200mb http://www8.zippyshare.com/v/22609897/file.html

[whurlston]

I just tested it and the ffmpeg bundled with NPVR won't work. Download a newer ffmpeg from http://ffmpeg.zeranoe.com/builds/ (any build 2013 or newer should work).

You will not need the "-ss XX" at all, the empty section at the beginning is automatically cut.

[martint123]

thanks for your help again.

I just tested it and the ffmpeg bundled with NPVR won't work. Download a newer ffmpeg from http://ffmpeg.zeranoe.com/builds/ (any build 2013 or newer should work).

You will not need the "-ss XX" at all, the empty section at the beginning is automatically cut.

Yes, it just finished with a non-playable file of 250mb. I'll grab the new ffmpeg shortly. Excellent that it will sort the chop size out itself.

I did have a problem with your batch file - the ren didn't work! it doesn't appear to like the output filename/directory....


Z:\video\output>set file=Z:\video\output\Formula One_20140419_06000845.bak

Z:\video\output>ren "Z:\video\output\Formula One_20140419_06000845.ts" "Z:\video\output\Formula One_20140419_06000845.bak"
The syntax of the command is incorrect.

[whurlston]

I did have a problem with your batch file - the ren didn't work! it doesn't appear to like the output filename/directory....


Z:\video\output>set file=Z:\video\output\Formula One_20140419_06000845.bak

Z:\video\output>ren "Z:\video\output\Formula One_20140419_06000845.ts" "Z:\video\output\Formula One_20140419_06000845.bak"
The syntax of the command is incorrect.

Fixed above. Should have been "%~n1.bak" instead of "%file%" for the second parameter.

[mvallevand]

Martin, the file seems to play fine if you can filter the pids ok, If you can't do it with fmpeg try http://www.pjdaniel.org.uk/mpeg/ start with PID 0,1, 512,640,660

Martin

[martint123]

Thanks both, currently running the new ffmpeg on it (might be leaving it running and get an early night for a change).
Martin. I'll have a look at the stream analyser in the morning - if nothing else, it is about time I tried to understand the innards of these video files.

I guess I will be getting more troublesome files now that I am moving from using a PVR150 to grab the old analogue output from the STB to using a DVB-S2 card to tune directly and decrypt on the PC
If only it was as quick and easy chopping 2 minutes off the front of a files as it is from the end!