evc: decode profile and NAL unit types when dumping

Author: bradh

libheif/codecs/evc_boxes.cc

@@ -86,7 +86,8 @@ std::string Box_evcC::dump(Indent& indent) const
   sstr << Box::dump(indent);
   // TODO: decode more of this
   sstr << indent << "configurationVersion: " << ((int)m_configuration.configurationVersion) << "\n";
-  sstr << indent << "profile_idc: " << ((int)m_configuration.profile_idc) << "\n";
+  sstr << indent << "profile_idc: " << ((int)m_configuration.profile_idc)
+       << " (" << get_profile_as_text() << ")" << "\n";
   sstr << indent << "level_idc: " << ((int)m_configuration.level_idc) << "\n";
   sstr << indent << "toolset_idc_h: " << m_configuration.toolset_idc_h << "\n";
   sstr << indent << "toolset_idc_l: " << m_configuration.toolset_idc_l << "\n";
@@ -103,7 +104,8 @@ std::string Box_evcC::dump(Indent& indent) const
 
     indent++;
     sstr << indent << "array_completeness: " << (array.array_completeness  ? "true" : "false") << "\n"
-         << indent << "NAL_unit_type: " << ((int) array.NAL_unit_type) << "\n";
+         << indent << "NAL_unit_type: " << ((int) array.NAL_unit_type) << " ("
+         << get_NAL_unit_type_as_text(array.NAL_unit_type) << ")" << "\n";
 
     for (const auto& unit : array.nal_units) {
       sstr << indent;
@@ -119,6 +121,23 @@ std::string Box_evcC::dump(Indent& indent) const
   return sstr.str();
 }
 
+std::string Box_evcC::get_profile_as_text() const
+{
+  switch (m_configuration.profile_idc)
+  {
+  case 0:
+    return "Baseline";
+  case 1:
+    return "Main";
+  case 2:
+    return "Baseline Still";
+  case 3:
+    return "Main Still";
+  default:
+    return std::string("Unknown");
+  }
+}
+
 std::string Box_evcC::get_chroma_format_as_text() const
 {
   switch (m_configuration.chroma_format_idc)
@@ -136,6 +155,29 @@ std::string Box_evcC::get_chroma_format_as_text() const
   }
 }
 
+std::string Box_evcC::get_NAL_unit_type_as_text(uint8_t nal_unit_type) const
+{
+  switch (nal_unit_type)
+  {
+  case 0:
+    return "NONIDR_NUT";
+  case 1:
+    return "IDR_NUT";
+  case 24:
+    return "SPS_NUT";
+  case 25:
+    return "PPS_NUT";
+  case 26:
+    return "APS_NUT";
+  case 27:
+    return "FD_NUT";
+  case 28:
+    return "SEI_NUT";
+  default:
+    return std::string("Unknown");
+  }
+}
+
 Error Box_evcC::write(StreamWriter& writer) const
 {
   size_t box_start = reserve_box_header_space(writer);

libheif/codecs/evc_boxes.h

@@ -82,7 +82,9 @@ class Box_evcC : public Box {
 
   std::vector<NalArray> m_nal_array;
 
+  std::string get_profile_as_text() const;
   std::string get_chroma_format_as_text() const;
+  std::string get_NAL_unit_type_as_text(uint8_t nal_unit_type) const;
 };
 
 #endif

tests/evc_box.cc

@@ -34,7 +34,7 @@
 TEST_CASE("evcC") {
   std::vector<uint8_t> byteArray{
       0x00, 0x00, 0x00, 0x3d, 0x65, 0x76, 0x63, 0x43,
-      0x01, 0x00, 0xd7, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x01, 0x02, 0xd7, 0x00, 0x00, 0x00, 0x00, 0x00,
       0x00, 0x00, 0x00, 0x52, 0x01, 0x40, 0x00, 0xf0,
       0x03, 0x02, 0x98, 0x00, 0x01, 0x00, 0x15, 0x32,
       0x00, 0x80, 0x6b, 0x80, 0x00, 0x00, 0x00, 0x00,
@@ -56,7 +56,7 @@ TEST_CASE("evcC") {
   std::shared_ptr<Box_evcC> evcC = std::dynamic_pointer_cast<Box_evcC>(box);
   Box_evcC::configuration configuration = evcC->get_configuration();
   REQUIRE(configuration.configurationVersion == 1);
-  REQUIRE(configuration.profile_idc == 0);
+  REQUIRE(configuration.profile_idc == 2);
   REQUIRE(configuration.level_idc == 215);
   REQUIRE(configuration.toolset_idc_h == 0);
   REQUIRE(configuration.toolset_idc_l == 0);
@@ -71,7 +71,7 @@ TEST_CASE("evcC") {
   REQUIRE(dumpResult == "Box: evcC -----\n"
                         "size: 61   (header size: 8)\n"
                         "configurationVersion: 1\n"
-                        "profile_idc: 0\n"
+                        "profile_idc: 2 (Baseline Still)\n"
                         "level_idc: 215\n"
                         "toolset_idc_h: 0\n"
                         "toolset_idc_l: 0\n"
@@ -83,11 +83,11 @@ TEST_CASE("evcC") {
                         "length_size: 4\n"
                         "<array>\n"
                         "| array_completeness: true\n"
-                        "| NAL_unit_type: 24\n"
+                        "| NAL_unit_type: 24 (SPS_NUT)\n"
                         "| 32 00 80 6b 80 00 00 00 00 00 00 00 20 0a 08 0f 16 c0 00 54 00 \n"
                         "<array>\n"
                         "| array_completeness: true\n"
-                        "| NAL_unit_type: 25\n"
+                        "| NAL_unit_type: 25 (PPS_NUT)\n"
                         "| 34 00 fb 00 \n");
 
   StreamWriter writer;