[MPlayer-dev-eng] Some progress - thanks to all who helped
adland123 at yahoo.com
Tue Mar 16 09:52:42 CET 2004
> No, it will crash with a segmentation fault (sig11). I added a comment,
> maybe this is enough.
at least they know it was supposed to crash in this case.
Audio format 0x501
> They call it AVC, I think. A decoder for this format is contained in the
> RealPlayer VP4 codec pack,
I am not sure but I think Winamp (AOL based product?) may have plugins as
No testing of this by me yet.
> How does this A.dll try to use B.dll? If it uses static imports it
> should work automatically (have a look at loader/pe_image.c, line 293
> and following).
I figured this out today after some more code reading and test runs.
Now working on two more from same company and will release all of them at
once as a single patch.
all use two dlls for some reason.
1) H263 based codec has both a DirectShow and VFW dll versions neither seems
to work currently. Not much debugging of this yet.
2) Wavelet based
This codec works apprently with the video sample I encoded in windows.
3) I forget the codec type
Works for a few seconds and then a segfault (sig11) occurs.
(gdb says fault is in the B.dll decompress frames function)
for this codec I had to implement the kernel32 function HeapValidate.
First try was moving in the code from wine but it got very complicated
quickly as I was merging in way to many functions from various other
DLLs etc. this seemed like the wrong way to do it.
Second try: decided to stub it out to always return true as a test
(obviously wrong way to do it).
Noticed a lot of other heap functions from kernel32 were already implemented
not this one yet.
Here is a MS page about the function which I found for some additional
I appreciate all info posted on the list by everyone.
every little piece helps me learn more.
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