[MPlayer-users] mplayer dvb startup syncronisation

[Jelle de Jong]

Nico Sabbi wrote:
> Il giorno mer, 15/10/2008 alle 09.37 +0200, Jelle de Jong ha scritto:
>> Jelle de Jong wrote:
>>> Nico Sabbi wrote:
>>>> On Tuesday 14 October 2008 09:59:33 Jelle de Jong wrote:
>>>>
>>>>> How can I create such sample? I know several ways to capture the
>>>>> stream but how would you like the sample, any way to do this with
>>>>> mplayer?
>>>>>
>>>>> Best regards,
>>>>>
>>>>> Jelle
>>>> $ mplayer -dumpfile dump.ts -dumpstream dvb://TV_STATION
>>> Thanks you for this realy helpfull command. I created 4 stream dumps, of
>>> some FTA channels and uploaded them to
>>> ftp://upload.mplayerhq.hu/MPlayer/incoming/ I can't see them but they
>>> are really uploaded ...
>>>
>>> mplayer -dumpfile ~/dump-1.ts -dumpstream dvb://"Nederland 1(Digitenne)"
>>> lftp
>>> open ftp://upload.mplayerhq.hu/MPlayer/incoming/
>>> put dump-1.ts dump-2.ts dump-3.ts dump-4.ts
>>>
>>> Thanks in advance,
>>>
>>> Jelle
>>>
>> Is the provided information correct? I did not got any feedback yet. I
>> did get an confirmation from some other dvb-t user that they have the
>> same problems sometimes.
>>
>> Best regards,
>>
>> Jelle
> 
> I've been in hell all day, I didn't have the time to analyze the
> streams you uploaded. dump-3 and dump-4 play perfectly here, without
> distortions.
> For these 2, please, do like this:
> 
> $ mplayer -ao pcm:file=dump3.wav >& dump3.log
> $ mplayer -ao pcm:file=dump4.wav >& dump4.log
> 
> and upload dump[34].wav and dump[34].log.
> 
> As for dump-1 and dump-2: I couldn't find any useful data in there, 
> but I'm still searching. Are you sure the stream in unencrypted?
> Encrypted files aren't supported

hehe. my hole week is an hell to:
http://bugzilla.gnome.org/show_bug.cgi?id=555802#c5

I did some more testing, and when I try to watch the dumped ts streams
the behavior is different. Most times 90% the audio is correct,
sometimes it goes bad but almost never. I tried to to record this
behavior with recorddesktop, but when the problem occurs it errors out
saying there is an buffer overflow. So I also think this is the problem
an buffer overflows on initialization of the audio streams. So the
digital streams are ok, but the mplayer initializations of the video and
audio with dvb seems to go wrong somewhere.

I then took a digital camera rebooted my system and recorded the
behavior. When I try mplayer it does not work at all! I have to start
totem-xine first! Retrying mplayer will work after this, and this time I
also recorded the audio distortions...

I uploaded the results to:
ftp://upload.mplayerhq.hu/MPlayer/incoming/
ftp://upload.mplayerhq.hu/MPlayer/incoming/jelle-mplayer-tune-bugs.mov
ftp://upload.mplayerhq.hu/MPlayer/incoming/mydesktop.mpg-1.ogv

Under the filenames:
jelle-mplayer-tune-bugs.mov
mydesktop.mpg-1.ogv

Best regards,

Jelle