[vlc-devel] Re: Issue with PTS/DTS

[Christophe Démaret]

Derk-Jan Hartman a écrit :
> Quite possibly the problem is the VLC avi muxer, which is known to be 
> unreliable if not broken.Try using another fileformat.

Tried with TS (hacked to accept MJPEG2000 as it already does for a lot 
of MS codecs). There's a good new and a bad new. The good one is now I 
have a DTS and a PTS even if they not exactly what I expected.
But still, VLC calls the DecodeBlock() indefinitely for the SAME packet 
over and over :/ I can't release it it refuses to work on the next one.
Any idea someone ?

> Or even better, 
> try local playback. (if you have a headless machine, -V dummy -I dummy 
> -A dummy do wonders ).

Considering the source is an ARM9 120 Mhz Platform this more or less an 
idea that should be forgotten quickly. No I can't use the client machine 
since that machine is under Windows. Neither can I install Linux on the 
client machine.

New log with TS available on ftp://ftp2.cdemaret.com/cdemaret/vlc under 
the name messages_decoder_2.txt

looks like this:

> mj2k debug: New block: p_block: @ 1677528, buffer @ 16775a0, size: 16018, dts: 1737297254, pts: 6
> mj2k debug: The jas_stream_t (@1602f30) was created based on buffer @16775a0, size=16018.
> mj2k debug: The frame (@1602f30) was decoded, returned 4747eb8.
> mj2k debug: Width = 320, Height = 240. Begin of the transfert to the VLC structure.
> mj2k debug: New buffer successfully created (@4781f38), copy from 4747eb8
> mj2k debug: Entering mj2k_CopyPicture
> mj2k debug: Comp. num. 0, w=320, h=240. Ready to copy.
> mj2k debug: Comp. num. 1, w=320, h=240. Ready to copy.
> mj2k debug: Comp. num. 2, w=320, h=240. Ready to copy.
> mj2k debug: Transfert successful. We're done here, image @4781f38.
> mj2k debug: Memory has been cleaned.
> mj2k debug: New block: p_block: @ 1677528, buffer @ 16775a0, size: 16018, dts: 1737297254, pts: 6
> mj2k debug: The jas_stream_t (@1602f30) was created based on buffer @16775a0, size=16018.
> mj2k debug: The frame (@1602f30) was decoded, returned 1712ea8.
> mj2k debug: Width = 320, Height = 240. Begin of the transfert to the VLC structure.
> mj2k debug: New buffer successfully created (@4782048), copy from 1712ea8
> mj2k debug: Entering mj2k_CopyPicture
> mj2k debug: Comp. num. 0, w=320, h=240. Ready to copy.
> mj2k debug: Comp. num. 1, w=320, h=240. Ready to copy.
> mj2k debug: Comp. num. 2, w=320, h=240. Ready to copy.
> mj2k debug: Transfert successful. We're done here, image @4782048.

THe first line is the important one: "p_block: @ 1677528" over and over, 
the SAME packet.


Thanks for any help you could provide.


Christophe

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