[MEncoder-users] some minutes delay between audio and video

[Malte Schünemann]

Hi again

On 01/01/2012 02:03 AM, Bill Crockett wrote:
>
> On 1/01/2012 1:38 AM, Malte Schünemann wrote:
>> Thanks for your comments below
>>
>> On 12/31/2011 04:08 AM, Bill Crockett wrote:
>>>
>>> On 31/12/2011 9:04 AM, Malte Schünemann wrote:
>>>> I am frequently converting videos coming via satellite as transport 
>>>> stream. I recently experienced a strange delay between the audio 
>>>> and the video part that is in the range of minutes. Indeed, the 
>>>> mencoder output shows
>>>>
>>>> The problem happens only if I attempt to cut out advertisings - so 
>>>> far I only observed the problem at the beginning of the file 
>>>> (cutting off the first 5 minutes). I tried to overcome the problem 
>>>> with -audio-delay, but had no success. 
>>>
>>> Please read this thread about DVBcut:
>>>
>>> http://lists.mplayerhq.hu/pipermail/mencoder-users/2011-December/012989.html 
>>>
>>>
>> I have tried  DVBcut - but unfortunately, it does not recognise my 
>> videos (although I can play them with mplayer - and mencoder has 
>> worked in the past as well). When attempting to open the file, I get 
>> "Unknown file type".
>>
>> midentify tells me e.g.
>>
>> ID_VIDEO_ID=511
>> ID_AUDIO_ID=512
>> ID_AID_512_LANG=deu
>> ID_AUDIO_ID=515
>> ID_AID_515_LANG=deu
>> ID_SUBTITLE_ID=33
>> ID_SID_33_LANG=
>> ID_FILENAME=Die\ wilden\ Kerle_II_20100103_1140.ts
>> ID_DEMUXER=mpegts
>> ID_VIDEO_FORMAT=0x10000002
>> ID_VIDEO_BITRATE=15000000
>> ID_VIDEO_WIDTH=720
>> ID_VIDEO_HEIGHT=576
>> ID_VIDEO_FPS=25.000
>> ID_VIDEO_ASPECT=0.0000
>> ID_AUDIO_FORMAT=80
>> ID_AUDIO_BITRATE=0
>> ID_AUDIO_RATE=0
>> ID_AUDIO_NCH=0
>> ID_START_TIME=11166.00
>> ID_LENGTH=6288.76
>> ID_SEEKABLE=1
>> ID_CHAPTERS=0
>> ID_VIDEO_CODEC=ffmpeg2
>> ID_AUDIO_BITRATE=192000
>> ID_AUDIO_RATE=48000
>> ID_AUDIO_NCH=2
>> ID_AUDIO_CODEC=ffmp2float
>> ID_EXIT=EOF
>>
>>> I spent weeks experimenting with -edl -ss and -endpos with MPEG-TS 
>>> videos and I could not get A/V sync right.  Don't waste your time 
>>> like I did.
>>>
>>> http://dvbcut.sourceforge.net/index.html
>>>
>>
>> This is what I had tried in the past running Fedora - currently, I am 
>> using Ubuntu 11.10 .
>>
>> Malte
>> _______________________________________________
>>
>
> I don't know anything about Linux, sorry.  Have you tried opening a 
> standard mpeg-ps file in DVBcut?  A number of short VOB files from a 
> DVD to test it out?  If it does not work, then something is wrong with 
> your install.  I would go here:
>
> http://dvbcut.sourceforge.net/installation.html
>
> http://dvbcut.sourceforge.net/mailinglist.html
>
> Request help in their Mailing List.
> _______________________________________________
> MEncoder-users mailing list
> MEncoder-users at mplayerhq.hu
> https://lists.mplayerhq.hu/mailman/listinfo/mencoder-users

I am trying that path - thanks. Nevertheless, I find it strange that 
there is no option to make mencoder sync correctly video and audio. What 
can I do to track this issue further ?

Malte