revert(54b90ac): "fix?: remove tags from stream and chapter"

This reverts commit 54b90ac7f5.

src/ffprobe-wasm-wrapper.cpp

@@ -47,6 +47,7 @@ typedef struct Stream {
   int channels;
   int sample_rate;
   int frame_size;
+  std::vector<Tag> tags;
 } Stream;
 
 typedef struct Chapter {
@@ -54,6 +55,7 @@ typedef struct Chapter {
   std::string time_base;
   float start;
   float end;
+  std::vector<Tag> tags;
 } Chapter;
 
 typedef struct Frame {
@@ -152,6 +154,15 @@ FileInfoResponse get_file_info(std::string filename) {
         .frame_size = (int)pLocalCodecParameters->frame_size,
       };
 
+      // Add tags to stream.
+      const AVDictionaryEntry *tag = NULL;
+      while ((tag = av_dict_get(pFormatContext->streams[i]->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) {
+        Tag t = {
+          .key = tag->key,
+          .value = tag->value,
+        };
+        stream.tags.push_back(t);
+      }
 
       r.streams.push_back(stream);
     }
@@ -172,6 +183,15 @@ FileInfoResponse get_file_info(std::string filename) {
         .end = (float)chapter->end,
       };
 
+      // Add tags to chapter.
+      const AVDictionaryEntry *tag = NULL;
+      while ((tag = av_dict_get(chapter->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) {
+        Tag t = {
+          .key = tag->key,
+          .value = tag->value,
+        };
+        c.tags.push_back(t);
+      }
 
       r.chapters.push_back(c);
     }
@@ -334,6 +354,7 @@ EMSCRIPTEN_BINDINGS(structs) {
   .field("channels", &Stream::channels)
   .field("sample_rate", &Stream::sample_rate)
   .field("frame_size", &Stream::frame_size)
+  .field("tags", &Stream::tags)
   ;
   register_vector<Stream>("Stream");
 
@@ -342,6 +363,7 @@ EMSCRIPTEN_BINDINGS(structs) {
   .field("time_base", &Chapter::time_base)
   .field("start", &Chapter::start)
   .field("end", &Chapter::end)
+  .field("tags", &Chapter::tags)
   ;
   register_vector<Chapter>("Chapter");