[FFmpeg-trac] #6373(undetermined:new): problem compiling program with ffmpeg libererys

FFmpeg trac at avcodec.org
Fri May 5 13:08:11 EEST 2017


#6373: problem compiling program with ffmpeg libererys
-------------------------------------+-------------------------------------
             Reporter:  nthrev       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 after installation it's seems that not all files are in the end folder (i
 got for example mem.h but no mem.c , i didn't got libswscale at all so
 again i copy it from github and put it there).
 so i added this files manually from github but visual studio give me error
 that the linker can't fund those functions.

 I'm try to make a simple ffmpeg program , i install ffmpeg with this
 commands:
 ./configure --enable-asm --enable-yasm --arch=i386 --disable-ffserver
 --disable-avdevice --disable-swscale --disable-doc --disable-ffplay
 --disable-ffprobe --disable-ffmpeg --enable-shared --disable-static
 --disable-bzlib --disable-libopenjpeg --disable-iconv --disable-zlib
 --prefix=/c/ffmpeg --toolchain=msvc
 make
 make install
 and then i imported the location of the new ffmpeg libto visual studio.

 How to reproduce:
 the program i used attached in the_program.txt
 i use visual studio 2015 on win 10 64bit version

 this is the some of the errors:

 Error   LNK2019 unresolved external symbol _av_malloc referenced in
 function _main      FirstFFMPEGproject
 c:\Users\----\OneDrive\documents\visual studio
 2015\Projects\FirstFFMPEGproject\FirstFFMPEGproject\Source.obj   1

 Error   LNK2019 unresolved external symbol _av_free referenced in function
 _main        FirstFFMPEGproject      c:\Users\*\OneDrive\documents\visual
 studio 2015\Projects\FirstFFMPEGproject\FirstFFMPEGproject\Source.obj
 1

 Error   LNK2019 unresolved external symbol _sws_getContext referenced in
 function _main FirstFFMPEGproject
 c:\Users\**\OneDrive\documents\visual studio
 2015\Projects\FirstFFMPEGproject\FirstFFMPEGproject\Source.obj     1

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6373>
FFmpeg <https://ffmpeg.org>
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