Op 4 nov. 2011 08:23 schreef "Shiju Sasi" <[email protected]> het
volgende:
>
> Hi,
>
> Here are the exact list of warnings/errors.
>
>
> 1>AveVideoControl.exp : warning LNK4078: multiple '.drectve' sections
found with different attributes (00000200)
>
> 1>libavcodec.a(utils.o) : warning LNK4217: locally defined symbol
_isprint imported in function _av_get_codec_tag_string
>
> 1>libx264.a(common.o) : warning LNK4217: locally defined symbol __iob
imported in function _x264_log_default
>
> 1>libavutil.a(log.o) : warning LNK4049: locally defined symbol __iob
imported
>
> 1>libx264.a(common.o) : warning LNK4217: locally defined symbol __stricmp
imported in function _x264_param_parse
>
> 1>libx264.a(common.o) : warning LNK4217: locally defined symbol
__strnicmp imported in function _x264_param_default_preset
>
> 1>libmingwex.a(wcrtomb.o) : warning LNK4217: locally defined symbol
___lc_codepage imported in function _wcsrtombs
>
> 1>libmingwex.a(mbrtowc.o) : warning LNK4049: locally defined symbol
___lc_codepage imported
>
> 1>libmingwex.a(wcrtomb.o) : warning LNK4217: locally defined symbol
___mb_cur_max imported in function _wcsrtombs
>
> 1>libmingwex.a(mbrtowc.o) : warning LNK4049: locally defined symbol
___mb_cur_max imported
>
> 1>libavutil.a(eval.o) : warning LNK4217: locally defined symbol _isspace
imported in function _av_expr_parse
>
> 1>libavcodec.a(utils.o) : error LNK2019: unresolved external symbol
__imp__toupper referenced in function _ff_toupper4
>
> 1>libavutil.a(dict.o) : error LNK2001: unresolved external symbol
__imp__toupper
>
> 1>libavutil.a(avstring.o) : error LNK2001: unresolved external symbol
__imp__toupper
>
> 1>libx264.a(encoder.o) : error LNK2019: unresolved external symbol
__imp___fstat referenced in function _x264_encoder_open_118
>
> 1>libx264.a(ratecontrol.o) : error LNK2001: unresolved external symbol
__imp___fstat
>
> 1>libavutil.a(log.o) : error LNK2019: unresolved external symbol
__imp___vsnprintf referenced in function _av_log_default_callback
>
> 1>libavutil.a(avstring.o) : error LNK2001: unresolved external symbol
__imp___vsnprintf
>
> 1>.\ReleaseMinDependency\AveVideoControl.dll : warning LNK4088: image
being generated due to /FORCE option; image may not run
You're trying to use MSVC to link with GCC's static libraries, which is
impossible. To use x264 with MSVC, you need the dll and you will have to
use the def file to produce a lib import file. I'm not sure if I'm missing
a detail here (like linking the x264 dll with -static or not), but what
you're trying its quite impossible...
Ruben
>
> Thanks,
> Shiju
>
> On Thu, Nov 3, 2011 at 3:17 PM, JonY <[email protected]> wrote:
>>
>> On 11/3/2011 13:04, Shiju Sasi wrote:
>> > Hi I build my Windows 32 bit DLL on Vista machine. This DLL works in a
>> > browser context to render Video using H264 video. I use x264 and ffmpeg
>> > libraries. My deployment can be any Windows machine ( Vista, 7, XP etc)
>> >
>> > I configured x264 using
>> >
>> > ./configure --cross-prefix=i686-w64-mingw32- --enable-shared
>> > --disable-swscale --disable-ffms --disable-asm --disable-thread
>> >
>> > Then did the make.
>> >
>> > Then I configured ffmpeg using.
>> >
>> >
>> > ./configure --enable-cross-compile
>> > --cross-prefix=i686-w64-mingw32- --enable-shared --disable-pthreads
>> > --arch=x86_32 --enable-postproc --enable-avfilter --disable-armv5te
>> > --disable-ffplay --disable-ffserver --disable-ffprobe --disable-doc
>> > --disable-debug --disable-encoders --disable-muxers --disable-neon
>> > --disable-pic --disable-decoders --enable-decoder=h264 --disable-bsfs
>> > --disable-protocols --disable-parsers --enable-parser=h264
>> > --disable-filters --disable-demuxers
>> > then did make.
>> >
>> > Now my application DLL, I built using /MT so as to avoid any CRT mess
up in
>> > the deployed machine. But the build fails with 3 linker errors -
>> >
>>
>> Do not use /MT. use /MD instead, mingw has not been designed to handle
>> static CRT since its inception, that is unless MS releases their C
>> runtime with an OSS compatible license.
>>
>> > *unresolved external symbol __imp__toupper , *
>> > *
>> >
>> > unresolved external symbol __imp___fstat,
>> >
>> > and
>> >
>> > unresolved external symbol __imp___vsnprintf
>> >
>>
>> Please do not hide any errors and post all of them, eg which object is
>> requiring them.
>>
>
>
>
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