FFmpeg to WASM build setup + Vue app.

src/main.c

@@ -0,0 +1,38 @@
+#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);
+}