Inserted Empty Box (#2)

* GitHub Test onto ds/NFE-150

* Added comments as notes to help me understand the code better

* Added debug function in libheif, added comments

* Reverted to original version

* heif_api_structs.h - reverted to original version

* libheif/bistream.h reverted to original version

* libheif/box.h reverted to original version

* Added function: get_heif_file(). This allows the private heif_file object to be extracted from the heif_context

* libheif/heif_file.h - The HeifFile class has a private vector of boxes called 'm_top_level_boxes'. The function 'get_top_level_boxes()' was added to retrieve that vector.

* examples/heif_convert.cc - Reverted to original version

* examples/heif_convert.cc - Reverted to original version (attempt #2)

* examples/heif_convert.cc - Reverted to original version (attempt strukturag#3)

* heif_box.cc is a file that recently created and no longer need

* Delete heif_box.cc

This file was recently created by me and is no longer needed.

* This example has been completely gutted, leaving only the essential code for converting a heif to a jpg

* added additional executable examples files for testing

* Removed all-caps comments, removed People's names, Error handling is now std::cerr (rather than mixing in fprintf(stderr, ...), created functions: create_heif_file() & printBoxes(), replaced complicated variables with 'auto'

Author: dsookhoo

examples/CMakeLists.txt

@@ -89,10 +89,21 @@ set (heif_enc_sources
   heif_enc.cc
 )
 
+# Insert a box
+set (heif_insert_sources
+  heif_insert.cc
+)
+
+
 set (heif_test_sources
   heif_test.cc
 )
 
+# Bare minimum code to convert a jpg to heif
+set (heif_enc_minimum_sources
+  heif_enc_minimum.cc
+)
+
 if(MSVC)
   set (getopt_sources
     ../extra/getopt.c
@@ -121,6 +132,20 @@ target_include_directories(heif-enc PRIVATE ${additional_includes})
 install(TARGETS heif-enc RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
 install(FILES heif-enc.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
 
+add_executable (heif-insert ${heif_insert_sources} ${getopt_sources})
+target_link_directories (heif-insert PRIVATE ${additional_link_directories})
+target_link_libraries (heif-insert heif ${additional_libraries})
+target_include_directories(heif-insert PRIVATE ${additional_includes})
+install(TARGETS heif-insert RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+install(FILES heif-insert.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
+
+add_executable (heif-enc_minimum ${heif_enc_minimum_sources} ${getopt_sources})
+target_link_directories (heif-enc_minimum PRIVATE ${additional_link_directories})
+target_link_libraries (heif-enc_minimum heif ${additional_libraries})
+target_include_directories(heif-enc_minimum PRIVATE ${additional_includes})
+install(TARGETS heif-enc_minimum RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
+install(FILES heif-enc_minimum.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
+
 add_executable (heif-test ${heif_test_sources} ${getopt_sources})
 target_link_libraries (heif-test heif)