Create test tool to deconstruct and reassemble a WebM file

src/bin/resynth.rs

@@ -0,0 +1,49 @@
+extern crate lab_ebml;
+
+use std::io::{Cursor, stdout, Write};
+use lab_ebml::Schema;
+use lab_ebml::webm::*;
+use lab_ebml::webm::WebmElement::*;
+
+const SRC_FILE: &'static [u8] = include_bytes!("../data/test1.webm");
+
+pub fn main() {
+
+    let mut head = Vec::new();
+    let mut body = Vec::new();
+
+    let mut reading_head = true;
+
+    for element in Webm.parse(SRC_FILE) {
+        match element {
+            Cluster => reading_head = false,
+            // TODO: skip elements not required for streaming
+            Info => continue,
+            Void => continue,
+            Unknown(_) => continue,
+            _ => (),
+        }
+
+        if reading_head {
+            head.push(element);
+        } else {
+            body.push(element);
+        }
+    }
+
+    let mut output = Vec::new();
+    let mut cursor = Cursor::new(output);
+
+    for element in head {
+        encode_webm_element(element, &mut cursor).unwrap();
+    }
+
+    for element in body {
+        encode_webm_element(element, &mut cursor).unwrap();
+    }
+
+    output = cursor.into_inner();
+    stdout().write_all(&output).unwrap();
+    output.clear();
+
+}