changed path to ffmpeg

Signed-off-by: Ken Museth <ken.museth@gmail.com>

Author: kmuseth

openvdb_cmd/vdb_tool/CMakeLists.txt

@@ -117,6 +117,7 @@ endif()
 if(OPENVDB_TOOL_USE_MPEG)
   target_compile_definitions(vdb_tool_common INTERFACE "VDB_TOOL_USE_MPEG")
   find_program(FFMPEG_PATH NAMES ffmpeg REQUIRED)
+  target_compile_definitions(vdb_tool_common INTERFACE "VDB_TOOL_FFMPEG_PATH=\"${FFMPEG_PATH}\"")
 endif()
 
 if(OPENVDB_TOOL_USE_EXR)

openvdb_cmd/vdb_tool/include/Tool.h

@@ -113,6 +113,10 @@
 #include <cstdlib>// for std::system
 #endif
 
+#ifndef VDB_TOOL_FFMPEG_PATH
+#define VDB_TOOL_FFMPEG_PATH "ffmpeg"
+#endif
+
 namespace openvdb {
 OPENVDB_USE_VERSION_NAMESPACE
 namespace OPENVDB_VERSION_NAME {
@@ -3354,7 +3358,7 @@ void Tool::movie()
   const std::string flip = mParser.get<std::string>("flip");
   if (mParser.verbose) mTimer.start("movie");
 
-  std::string cmd("ffmpeg"), log("log.txt");
+  std::string cmd("\"" VDB_TOOL_FFMPEG_PATH "\""), log("log.txt");
   cmd += " -loglevel error";// only log error messages
   if (contains(input, '*')) cmd += " -pattern_type glob";// support expanding shell-like wildcard patterns (globbing)
   cmd += " -i \'" + input + "\'";// specify multiple input files as "input_*.ppm"