Add more bindings for AVFormatContext data. Add Overview page in Vue. Add required CORS headers for supporting SharedArrayBuffer in Firefox.

src/main.c

@@ -1,38 +0,0 @@
-#include <stdio.h>
-#include <math.h>
-
-#include <libavcodec/avcodec.h>
-#include <libavformat/avformat.h>
-#include <libavutil/avutil.h>
-
-
-void version() {
-    printf("%s\n", AV_STRINGIFY(LIBAVFORMAT_VERSION));
-}
-
-void openfile() {
-    FILE *file = fopen("testingfs", "rb");
-    if (!file) {
-      printf("cannot open file\n");
-    }
-    fclose(file);
-
-    AVFormatContext *pFormatContext = avformat_alloc_context();
-    if (!pFormatContext) {
-      printf("ERROR: could not allocate memory for Format Context\n");
-    }
-
-    printf("opening the input file: %s and loading format (container) header\n", "testingfs");
-
-    // Open the file and read header.
-    int ret;
-    if ((ret = avformat_open_input(&pFormatContext, "testingfs", NULL, NULL)) < 0) {
-        printf("ERROR: could not open the file. Error: %d\n", ret);
-        printf("%s", av_err2str(ret));
-    }
-
-    printf("format: %s, duration: %lld us, bit_rate: %lld\n",
-      pFormatContext->iformat->name,
-      pFormatContext->duration,
-      pFormatContext->bit_rate);
-}

src/main.cpp

@@ -1,29 +1,40 @@
+#include <vector>
 #include <emscripten.h>
 #include <emscripten/bind.h>
 
-
 using namespace emscripten;
 
-
 extern "C" {
-
 #include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 #include <libavutil/avutil.h>
-
+};
 
 const std::string c_avformat_version() {
     return AV_STRINGIFY(LIBAVFORMAT_VERSION);
 }
 
-struct Response {
+struct Stream {
+  int id;
+  int start_time;
+  int duration;
+  int codec_type;
+};
+typedef struct Stream Stream;
+
+struct FileInfoResponse {
   std::string name;
   int bit_rate;
   int duration;
+  std::string url;
+  int nb_streams;
+  int flags;
+  std::vector<Stream> streams;
 };
+typedef struct FileInfoResponse FileInfoResponse;
 
-Response c_openfile() {
-    FILE *file = fopen("testingfs", "rb");
+FileInfoResponse get_file_info() {
+    FILE *file = fopen("file", "rb");
     if (!file) {
       printf("cannot open file\n");
     }
@@ -33,40 +44,65 @@ Response c_openfile() {
     if (!pFormatContext) {
       printf("ERROR: could not allocate memory for Format Context\n");
     }
-    printf("%p\n", pFormatContext);
-
-    printf("opening the input file: %s and loading format (container) header\n", "testingfs");
 
     // Open the file and read header.
     int ret;
-    if ((ret = avformat_open_input(&pFormatContext, "testingfs", NULL, NULL)) < 0) {
+    if ((ret = avformat_open_input(&pFormatContext, "file", NULL, NULL)) < 0) {
         printf("ERROR: could not open the file. Error: %d\n", ret);
         printf("%s", av_err2str(ret));
     }
 
-    printf("format: %s, duration: %lld us, bit_rate: %lld\n",
-      pFormatContext->iformat->name,
-      pFormatContext->duration,
-      pFormatContext->bit_rate);
+    // Initialize response struct with format data.
+    FileInfoResponse r = {
+      .name = pFormatContext->iformat->name,
+      .bit_rate = (int)pFormatContext->bit_rate,
+      .duration = (int)pFormatContext->duration,
+      .url = pFormatContext->url,
+      .nb_streams = (int)pFormatContext->nb_streams,
+      .flags = pFormatContext->flags
+    };
 
-    Response r;
-    r.name = pFormatContext->iformat->name;
-    r.duration = pFormatContext->duration;
-    r.bit_rate = pFormatContext->bit_rate;
+    // Get streams data.
+    AVCodec  *pCodec = NULL;
+    AVCodecParameters *pCodecParameters = NULL;
+    int video_stream_index = -1;
+
+    // Loop through the streams and print its information.
+    for (int i = 0; i < pFormatContext->nb_streams; i++) {
+      AVCodecParameters *pLocalCodecParameters = NULL;
+      pLocalCodecParameters = pFormatContext->streams[i]->codecpar;
+      Stream s = {
+        .id = (int)pFormatContext->streams[i]->id,
+        .start_time = (int)pFormatContext->streams[i]->start_time,
+        .duration = (int)pFormatContext->streams[i]->duration,
+        .codec_type = (int)pLocalCodecParameters->codec_type
+      };
+      r.streams.push_back(s);
+    }
     return r;
 }
-};
 
 
 EMSCRIPTEN_BINDINGS(my_constant_example) {
     function("c_avformat_version", &c_avformat_version);
 }
 
-EMSCRIPTEN_BINDINGS(a_struct) {
-  emscripten::value_object<Response>("Response")
-  .field("name", &Response::name)
-  .field("duration", &Response::duration)
-  .field("bit_rate", &Response::bit_rate)
+EMSCRIPTEN_BINDINGS(FileInfoResponse_struct) {
+  emscripten::value_object<Stream>("Stream")
+  .field("id", &Stream::id)
+  .field("start_time", &Stream::start_time)
+  .field("duration", &Stream::duration)
+  .field("codec_type", &Stream::codec_type)
   ;
-  function("c_openfile", &c_openfile);
+  register_vector<Stream>("Stream");
+  emscripten::value_object<FileInfoResponse>("FileInfoResponse")
+  .field("name", &FileInfoResponse::name)
+  .field("duration", &FileInfoResponse::duration)
+  .field("bit_rate", &FileInfoResponse::bit_rate)
+  .field("url", &FileInfoResponse::url)
+  .field("nb_streams", &FileInfoResponse::nb_streams)
+  .field("flags", &FileInfoResponse::flags)
+  .field("streams", &FileInfoResponse::streams)
+  ;
+  function("get_file_info", &get_file_info);
 }