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OpenCV Cmake cannot find ffmpeg lib

I am trying to compile OpenCV with ffmpeg support for ARM platform on x86 host.

I downloaded and compiled ffmpeg for the arm platform (both static - FFMPEG_ARM_LIB, and dynamic libraries - FFMPEG_ARM_LIB_SO)

When I run cmake in opencv, it gives the following -

--   Video I/O:
--     DC1394 1.x:                  NO
--     DC1394 2.x:                  NO
--     FFMPEG:                      **NO**
--       codec:                     NO
--       format:                    NO
--       util:                      NO
--       swscale:                   NO
--       gentoo-style:              YES
--     GStreamer:                   NO
--     OpenNI:                      NO
--     OpenNI PrimeSensor Modules:  NO
--     PvAPI:                       NO
--     GigEVisionSDK:               NO
--     UniCap:                      NO
--     UniCap ucil:                 NO
--     V4L/V4L2:                    NO/YES
--     XIMEA:                       NO
--     Xine:                        NO

I changed the following flags to point to the lib path of both the static and dynamic ffmpeg libraries -

  • LD_LIBRARY_PATH
  • C_INCLUDE_PATH
  • CPLUS_INCLUDE_PATH
  • PKG_CONFIG_PATH
  • PKG_CONFIG_LIBDIR
  • PATH
  • CMAKE_LIBRARY_PATH
  • CMAKE_INCLUDE_PATH

However, opencv still cannot recognize the ffmpeg libraries.

My FFMPEG compilation team was

./configure --enable-shared --disable-static\
 --cross-prefix=arm-linux-gnueabi- --arch=armv7a\
 --target-os=linux --prefix=<path>

?
1. ffmpeg ?
2. - CMake, ffmpeg lib ARM ?

+4
2

CMake, , . CMakeCache.txt CMake .

0
  • PATH ffmpeg *.pc PKG_CONFIG_PATH.
  • rm CMakeCache.txt.
  • CMake- .

.

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