id	summary	reporter	owner	description	type	status	priority	component	version	resolution	keywords	cc	blockedby	blocking	reproduced	analyzed
985	libutvideo wrapper compilation fails with invalid conversion, initialization errors	qyot27		"When attempting to compile FFmpeg, errors were reached when it got to the libutvideo wrapper.  The same configure was fine until about a week ago, which coincides with some avcodec_open and avcodec_close related commits.  I first saw it when using MinGW-w64 (i686-w64-mingw32-gcc/-g++ 4.6.1) to cross-compile under Ubuntu 11.10, but native compilation (also 4.6.1) encounters these initialization conversion errors too.

(cross-compile):
./configure --prefix=$HOME/win32_build --cross-prefix=i686-w64-mingw32- --enable-gpl --enable-version3 --disable-w32threads --enable-memalign-hack --disable-decoder=utvideo --enable-libutvideo --disable-encoders --disable-muxers --disable-debug --disable-network --disable-hwaccels --disable-indevs --disable-outdevs --cpu=pentium3 --extra-cflags=""-march=pentium3 -mtune=pentium3 -DPTW32_STATIC_LIB"" --target-os=mingw32 --arch=x86

(native):
./configure --prefix=$HOME/win32_build --enable-gpl --enable-version3 --disable-decoder=utvideo --enable-libutvideo --disable-encoders --disable-muxers --disable-debug --disable-network --disable-hwaccels --disable-indevs --disable-outdevs --cpu=pentium3 --extra-cflags=""-march=pentium3 -mtune=pentium3""


The error received:

{{{
CXX	libavcodec/libutvideo.o
cc1plus: warning: command line option ‘-Wdeclaration-after-statement’ is valid for C/ObjC but not for C++ [enabled by default]
cc1plus: warning: command line option ‘-Wno-format-zero-length’ is valid for C/ObjC but not for C++ [enabled by default]
cc1plus: warning: command line option ‘-Wno-pointer-sign’ is valid for C/ObjC but not for C++ [enabled by default]
cc1plus: warning: command line option ‘-Wmissing-prototypes’ is valid for Ada/C/ObjC but not for C++ [enabled by default]
cc1plus: warning: command line option ‘-Wno-pointer-to-int-cast’ is valid for C/ObjC but not for C++ [enabled by default]
cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for Ada/C/ObjC but not for C++ [enabled by default]
cc1plus: warning: command line option ‘-std=c99’ is valid for C/ObjC but not for C++ [enabled by default]
libavcodec/libutvideo.cpp:72:18: warning: multi-character character constant [-Wmultichar]
libavcodec/libutvideo.cpp:76:18: warning: multi-character character constant [-Wmultichar]
libavcodec/libutvideo.cpp:205:1: error: cannot convert ‘AVMediaType’ to ‘const char*’ in initialization
libavcodec/libutvideo.cpp:205:1: error: cannot convert ‘CodecID’ to ‘AVMediaType’ in initialization
libavcodec/libutvideo.cpp:205:1: error: invalid conversion from ‘unsigned int’ to ‘CodecID’ [-fpermissive]
libavcodec/libutvideo.cpp:205:1: error: invalid conversion from ‘int (*)(AVCodecContext*)’ to ‘int’ [-fpermissive]
libavcodec/libutvideo.cpp:205:1: error: cannot convert ‘int (*)(AVCodecContext*)’ to ‘const PixelFormat*’ in initialization
libavcodec/libutvideo.cpp:205:1: error: cannot convert ‘int (*)(AVCodecContext*, void*, int*, AVPacket*)’ to ‘const int*’ in initialization
libavcodec/libutvideo.cpp:205:1: warning: converting to non-pointer type ‘uint8_t {aka unsigned char}’ from NULL [-Wconversion-null]
libavcodec/libutvideo.cpp:205:1: error: invalid conversion from ‘const char*’ to ‘int’ [-fpermissive]
make: *** [libavcodec/libutvideo.o] Error 1
}}}
"	defect	closed	important	avcodec	git-master	fixed	utvideo				0	0