feat: add minimal iDatum support as POC

CMakeLists.txt

@@ -34,6 +34,7 @@ if (VIDEOREADER_CFFI)
   find_package(ffmpeg)
   find_package(galaxy)
   find_package(pylon)
+  find_package(idatum)
 endif()
 
 set(WITH_FFMPEG "OFF")
@@ -93,11 +94,23 @@ if (galaxy_FOUND)
   )
 endif()
 
+set(WITH_IDATUM "OFF")
+if (idatum_FOUND)
+  set(WITH_IDATUM "ON")
+  target_compile_definitions(videoreader PRIVATE VIDEOREADER_WITH_IDATUM)
+  target_link_libraries(videoreader PRIVATE idatum::idatum)
+  target_sources(videoreader PRIVATE
+    src/videoreader_idatum.cpp
+    src/videoreader_idatum.hpp
+  )
+endif()
+
 message(STATUS
   "videoreader: "
   "FFMPEG[${WITH_FFMPEG}] "
   "PYLON[${WITH_PYLON}] "
   "GALAXY[${WITH_GALAXY}] "
+  "IDATUM[${WITH_IDATUM}] "
   "CAPI[${VIDEOREADER_BUILD_CAPI}]"
 )
 

README.md

@@ -23,12 +23,17 @@ See [Findgalaxy.cmake](cmake/Findgalaxy.cmake) for exact logic of finding galaxy
 
 Download [pylon SDK](https://www.baslerweb.com/). Then set `PYLON_DIR` environment variable to the SDK directory. See [Findpylon.cmake](cmake/Findpylon.cmake) for exact logic of finding pylon SDK.
 
+### iDatum cameras (contrastech)
+
+Download [iDatum SDK](https://www.visiondatum.com/upfile/onlinedoc/LEO_Area_USB_EN.html). Then set `IDATUM_DIR` environment variable to the SDK directory. See [Findidatum.cmake](cmake/Findidatum.cmake) for exact logic of finding iDatum SDK.
+
 
 ### pip
 
 `pip install git+https://github.com/Visillect/videoreader`
 
-`FFMPEG_DIR=... GALAXY_DIR=... PYLON_DIR=... pip install git+https://github.com/Visillect/videoreader`
+When the SDKs aren't in default locations, the user can specify directories explicitly:
+`FFMPEG_DIR=... GALAXY_DIR=... PYLON_DIR=... IDATUM_DIR=... pip install git+https://github.com/Visillect/videoreader`
 
 
 ## Examples:

cmake/Findidatum.cmake

@@ -0,0 +1,131 @@
+# Ad-hoc writings by Arseniy Terekhin<[email protected]>.
+# Suggestions are welcomed!
+
+set(IDATUM_DIR "" CACHE STRING "iDatum directory hint")
+
+find_path(IDATUM_INCLUDE_DIR MvCameraControl.h
+  HINTS
+  ${IDATUM_DIR}
+  $ENV{IDATUM_DIR}
+  $ENV{HOME}/.local
+  PATH_SUFFIXES inc include
+  PATHS
+  ~/Library/Frameworks
+  /Library/Frameworks
+  /usr/local/include
+  /usr/include
+  /sw/include
+  /opt/local/include
+  /opt/iDatum/include
+  /opt/include
+  /mingw/include
+)
+
+if (IDATUM_INCLUDE_DIR)
+  find_library(IDATUM_MvCameraControl_LIBRARY
+    NAMES libMvCameraControl.so
+    HINTS
+    ${IDATUM_DIR}
+    $ENV{IDATUM_DIR}
+    $ENV{HOME}/.local
+    PATH_SUFFIXES lib lib/64
+    PATHS
+    /usr/local
+    /usr
+    /sw
+    /opt/local
+    /opt
+    /mingw
+    "${IDATUM_INCLUDE_DIR}/../lib/64"
+  )
+  get_filename_component(IDATUM_LIB_DIR "${IDATUM_MvCameraControl_LIBRARY}" DIRECTORY)
+  set(IDATUM_GCBase_LIBRARY "${IDATUM_LIB_DIR}/libGCBase_gcc421_v3_0.so")
+
+  set(IDATUM_VERSION_FILE "${CMAKE_BINARY_DIR}/idatum_version.c")
+  file(WRITE "${IDATUM_VERSION_FILE}"
+    "#include <stdio.h>\n"
+    "#include <MvCameraControl.h>\n\n"
+    "int main(){\n"
+    "  union {\n"
+    "    int version;\n"
+    "    struct {unsigned char Test, Rev, Sub, Main;};\n"
+    "  } version_s;\n\n"
+    "  int version = MV_CC_GetSDKVersion();"
+    "  version_s.version = version;"
+    "  printf(\"idatum_version: %d.%d.%d.%d (%#08x)\", version_s.Main, version_s.Sub, version_s.Rev, version_s.Test, version);\n"
+    "  return 0;\n"
+    "}\n"
+  )
+
+  set(ENV{LD_LIBRARY_PATH} "${IDATUM_LIB_DIR}")
+
+  try_run(
+    # Name of variable to store the run result (process exit status; number) in:
+    test_run_result
+
+    # Name of variable to store the compile result (TRUE or FALSE) in:
+    test_compile_result
+
+    # Binary directory:
+    "${CMAKE_CURRENT_BINARY_DIR}"
+
+    # Source file to be compiled:
+    "${IDATUM_VERSION_FILE}"
+
+    # Where to store the output produced during compilation:
+    COMPILE_OUTPUT_VARIABLE test_compile_output
+
+    # Where to store the output produced by running the compiled executable:
+    RUN_OUTPUT_VARIABLE test_run_output
+
+    # LINK_LIBRARIES iDatum
+    CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${IDATUM_INCLUDE_DIR}"
+
+    LINK_LIBRARIES "${IDATUM_MvCameraControl_LIBRARY}" # "${IDATUM_GCBase_LIBRARY}"
+  )
+  if (NOT test_compile_result)
+    message(FATAL_ERROR "${test_compile_output}")
+  endif()
+endif()
+
+string(REGEX MATCH "\\d+\\.\\d+\\.\\d+\\.\\d+" IDATUM_VERSION_STRING "${test_run_output}")
+
+include(FindPackageHandleStandardArgs)
+
+find_package_handle_standard_args(
+  idatum
+  REQUIRED_VARS
+    IDATUM_INCLUDE_DIR
+    IDATUM_GCBase_LIBRARY
+  VERSION_VAR IDATUM_VERSION_STRING
+)
+
+if(IDATUM_FOUND AND NOT TARGET idatum)
+  add_library(idatum::GCBase UNKNOWN IMPORTED)
+  set_target_properties(idatum::GCBase PROPERTIES
+    IMPORTED_LOCATION "${IDATUM_GCBase_LIBRARY}"
+    INTERFACE_INCLUDE_DIRECTORIES "${IDATUM_INCLUDE_DIR}"
+    INSTALL_RPATH_USE_LINK_PATH TRUE
+    BUILD_WITH_INSTALL_RPATH 1
+    INSTALL_RPATH "${IDATUM_LIB_DIR}"
+  )
+
+  message(STATUS "GCMABSE = ${IDATUM_GCBase_LIBRARY}")
+  add_library(idatum::MvCameraControl UNKNOWN IMPORTED)
+  set_target_properties(idatum::MvCameraControl PROPERTIES
+    IMPORTED_LOCATION "${IDATUM_MvCameraControl_LIBRARY}"
+    INTERFACE_INCLUDE_DIRECTORIES "${IDATUM_INCLUDE_DIR}"
+    INSTALL_RPATH_USE_LINK_PATH TRUE
+    BUILD_WITH_INSTALL_RPATH 1
+  )
+  message(STATUS "GCMABSE = ${IDATUM_MvCameraControl_LIBRARY}")
+
+  add_library(idatum::idatum INTERFACE IMPORTED)
+  set_target_properties(idatum::idatum PROPERTIES
+    INTERFACE_LINK_LIBRARIES "idatum::GCBase;idatum::MvCameraControl"
+    BUILD_WITH_INSTALL_RPATH 1
+    INSTALL_RPATH "${IDATUM_LIB_DIR}"
+  )
+  message(STATUS "!!!${IDATUM_LIB_DIR}")
+  # INSTALL_RPATH "$ORIGIN/.."
+endif()

include/videoreader/videoreader.hpp

@@ -5,7 +5,7 @@
 
 class VideoReader {
 public:
-  enum class SCALAR_TYPE : int32_t { U8 };
+  enum class SCALAR_TYPE : int32_t { U8, U16 };
   struct VRImage {
     int32_t height;
     int32_t width;

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "videoreader"
-version = "0.0.1"
+version = "0.0.2"
 authors = [
   { name="Arseniy Terekhin", email="[email protected]" },
 ]

src/videoreader.cpp

@@ -13,8 +13,12 @@
 #include "videoreader_galaxy.hpp"
 #endif
 
+#ifdef VIDEOREADER_WITH_IDATUM
+#include "videoreader_idatum.hpp"
+#endif
+
 static void default_vr_allocate(VideoReader::VRImage* image, void* unused) {
-  std::size_t size = image->stride * image->height;
+  std::size_t const size = image->stride * image->height;
   image->data = new (std::nothrow) uint8_t[size];
 }
 
@@ -65,6 +69,18 @@ std::unique_ptr<VideoReader> VideoReader::create(
         userdata));
   }
 #endif
+#ifdef VIDEOREADER_WITH_IDATUM
+  if (url.find("idatum://") == 0) {
+    return std::unique_ptr<VideoReader>(new VideoReaderIDatum(
+        url,
+        parameter_pairs,
+        extras,
+        allocate_callback,
+        delallocate_callback,
+        log_callback,
+        userdata));
+  }
+#endif
 #ifdef VIDEOREADER_WITH_FFMPEG
   return std::unique_ptr<VideoReader>(new VideoReaderFFmpeg(
       url,
@@ -76,7 +92,7 @@ std::unique_ptr<VideoReader> VideoReader::create(
       userdata));
 #else
 #if !defined(VIDEOREADER_WITH_FFMPEG) && !defined(VIDEOREADER_WITH_PYLON) && \
-    !defined(VIDEOREADER_WITH_GALAXY)
+    !defined(VIDEOREADER_WITH_GALAXY) && !defined(VIDEOREADER_WITH_IDATUM)
   throw std::runtime_error("build without any video backed");
 #else
   throw std::runtime_error("unsupported uri");