FFprobe is re-initialized on every ffprobe run. Emscripten's ENVIRONMENT variable was set to "WORKER". Node.js-related code should no longer be present in ffmpeg-core.js.

build/ffmpeg-wasm.sh

@@ -30,6 +30,7 @@ CONF_FLAGS=(
   -lswscale 
   -Wno-deprecated-declarations 
   $LDFLAGS 
+  -sENVIRONMENT=worker
   -sWASM_BIGINT                            # enable big int support
   -sUSE_SDL=2                              # use emscripten SDL2 lib port
   -sMODULARIZE                             # modularized to use as a library

src/fftools/ffprobe.c

@@ -382,6 +382,58 @@ static void ffprobe_cleanup(int ret)
 #if HAVE_THREADS
     pthread_mutex_destroy(&log_mutex);
 #endif
+
+    do_bitexact = 0;
+    do_count_frames = 0;
+    do_count_packets = 0;
+    do_read_frames  = 0;
+    do_read_packets = 0;
+    do_show_chapters = 0;
+    do_show_error   = 0;
+    do_show_format  = 0;
+    do_show_frames  = 0;
+    do_show_packets = 0;
+    do_show_programs = 0;
+    do_show_streams = 0;
+    do_show_stream_disposition = 0;
+    do_show_data    = 0;
+    do_show_program_version  = 0;
+    do_show_library_versions = 0;
+    do_show_pixel_formats = 0;
+    do_show_pixel_format_flags = 0;
+    do_show_pixel_format_components = 0;
+    do_show_log = 0;
+    do_show_chapter_tags = 0;
+    do_show_format_tags = 0;
+    do_show_frame_tags = 0;
+    do_show_program_tags = 0;
+    do_show_stream_tags = 0;
+    do_show_packet_tags = 0;
+    show_value_unit              = 0;
+    use_value_prefix             = 0;
+    use_byte_value_binary_prefix = 0;
+    use_value_sexagesimal_format = 0;
+    show_private_data            = 1;
+    show_optional_fields = SHOW_OPTIONAL_FIELDS_AUTO;
+    print_format = NULL;
+    stream_specifier = NULL;
+    show_data_hash = NULL;
+    read_intervals = NULL;
+    read_intervals_nb = 0;
+    find_stream_info  = 1;
+    input_filename = NULL;
+    print_input_filename = NULL;
+    iformat = NULL;
+    output_filename = NULL;
+    hash = NULL;
+    nb_streams = 0;
+    nb_streams_packets = NULL;
+    nb_streams_frames = NULL;
+    selected_streams = NULL;
+    log_buffer = NULL;
+    log_buffer_size = 0;
+
+    av_log(NULL, AV_LOG_DEBUG, "FFprobe: Cleanup done.\n");
 }
 
 struct unit_value {
@@ -4037,6 +4089,7 @@ int ffprobe(int argc, char **argv)
     }
 #endif
     av_log_set_flags(AV_LOG_SKIP_REPEATED);
+    ffprobe_cleanup(0);
     register_exit(ffprobe_cleanup);
 
     options = real_options;