libmpeg2dec-0.5.1 problems

Moin,

Sorry for the delay, meanwhile i had to do other things.

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So with the switch '-t'

./mpeg2dec -t Welcome.mpg

we can see the beautiful sand art.

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That's good news!

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(Without this,we have some relocation bugs that is caused the dynamic linking.)

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I think, this is the real problem with "my" mpeg2dec. When i do the change with -fPIC in the configure script, "my" mpeg2dec results look a lot better, but still not error-free. Anyway, now i know, where the problems are. Many thanks for that.

What now works ok for me, is a real old mpeg2decoder, which can be downloaded from

http://mpeg2videotools.sourceforge.net/

It compiles and runs on my nios system with almost no tweaks; here's a diff of the Makefile, which just changes the gcc and sets the -elf2flt flag during the link:

--- mpeg2dec/Makefile   2009-12-21 12:26:24.000000000 +0100
+++ orig/mpeg2dec/Makefile      2003-02-02 17:40:32.000000000 +0100
@@ -43,9 +43,8 @@
#  uncomment the following two lines if you want to include X11 support
-#USE_DISP = -DDISPLAY
-#LIBS = -L/usr/X11R6/lib -lX11
-LIBS = -elf2flt
+USE_DISP = -DDISPLAY
+LIBS = -L/usr/X11R6/lib -lX11
#  uncomment the following two lines if you want to use shared memory
#  (faster display if server and client run on the same machine)
@@ -63,7 +62,7 @@
# 
#  GNU gcc
# 
-CC = nios2-linux-uclibc-gcc
+CC = gcc
 CFLAGS = -g -O2 $(USE_DISP) $(USE_SHMEM) $(INCLUDEDIR) $(TRACE) $(VERBOSE) $(VE
RIFY) $(WARNINGS)
 OBJ = mpeg2dec.o getpic.o motion.o getvlc.o gethdr.o getblk.o getbits.o store.o
 recon.o spatscal.o idct.o idctref.o display.o systems.o subspic.o verify.o

Another advantage of the mpeg2decode is, that it can output colored .ppm files, so i don't have to fiddle around with the y and the 2 chroma planes seperatly.

Cheers,

WK