[MEncoder-users] Edit Decision List - exact frame cut problem.

[Gabri Nurtinaz Shally]

does the original source showing out of sync when played normally with
mplayer?
On Dec 12, 2011 6:47 AM, "Bill Crockett" <wsc4 at optusnet.com.au> wrote:

>
>
> On 11/12/2011 1:51 PM, The Wanderer wrote:
>
>> On 12/09/2011 12:41 AM, Bill Crockett wrote:
>>
>>  I am trying to remove advertisements from an MPEG-TS video using the Edit
>>> Decision List commands.
>>>
>>> mplayer  -edlout cut.dat videoTS.mpg
>>>
>>> mencoder -edl cut.dat -ovc copy -oac copy -noskip -mc 0 -of mpeg
>>> -mpegopts
>>> format=mpeg2:muxrate=9088:**interleaving2:tsaf:adelay=160 videoTS.mpg -o
>>> cut_test.mpg
>>>
>>> Using -edlout, if I cut right on where the film starts, it cuts out
>>> approximately 30 seconds off the start of the film.  If I cut slightly
>>> before
>>> the film starts, it then shows too much of the ad.  The same happens when
>>> cutting out the advertisements from their start to their end during the
>>> film.
>>> I just can't get it to cut exactly on the black spots where the film or
>>> ad
>>> fades out.
>>>
>>
>> I haven't used it myself, but I think -hr-edl-seek is what you're after.
>>
>>
> Thanks, but that also is not guaranteed to work with -ovc copy.  I tried
> my luck with it anyway, but this resulted:
>
> ============ Sorry, this file format is not recognized/supported
> =============
> === If this file is an AVI, ASF or MPEG stream, please contact the author!
> ===
> Cannot open demuxer.
>
> Anyway, I'm still using -ovc copy -edl and not bothering about starting at
> non-keyframe boundaries at the moment.
>
> After getting the A/V perfectly in sync by adjusting the -delay option,
> the audio is now out of sync only after the second advertisement cut (bad
> enough to be awful).  It is then back in sync after the third advertisement
> cut and fine from then on.  Trying -ofps 25 and even -fps 25 -ofps 25
> together made no difference.  320delay.mpg is in perfect sync after this
> encode:
>
> mencoder -ovc copy -oac copy -noskip -mc 0 -of mpeg -mpegopts /
> format=mpeg2:muxrate=9088:**tsaf:interleaving2:vdelay=320  /
> videoPS.mpg -o 320delay.mpg
>
> This plays in perfect sync:  mplayer 320delay.mpg -edl cut.dat
>
> Parameters of cut.dat:
> 1.160000 56.160000 0
> 210.839996 366.040009 0
> 903.040039 1102.959961 0
> 1641.320068 1801.599976 0
>
> mencoder -ovc copy -oac copy -noskip -mc 0 -of mpeg -mpegopts /
> format=mpeg2:muxrate=9088:**tsaf:interleaving2 320delay.mpg -o
> edl_cut.mpg -edl cut.dat
>
> From 366.040009 - 903.040039 "edl_cut.mpg" is out of sync; the rest is
> fine.
>
> Any ideas please and thanks for your help,
>
> BC
>
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