Add m-esr52 at 52.6.0

1 files changed, 114 insertions, 0 deletions

diff --git a/dom/media/test/dash_detect_stream_switch.sjs b/dom/media/test/dash_detect_stream_switch.sjs
new file mode 100644
index 000000000..378db10ca
--- /dev/null
+++ b/dom/media/test/dash_detect_stream_switch.sjs
@@ -0,0 +1,114 @@
+/* -*- Mode: JavaScript; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* dash_detect_stream_switch.sjs
+ *
+ * Parses requests for DASH manifests and ensures stream switching takes place
+ * by verifying the subsegments downloaded and the streams they belong to.
+ * If unexpected subsegments (byte ranges) are requested, the script will
+ * will respond with a 404.
+ */
+
+var DEBUG = false;
+
+function parseQuery(request, key) {
+  var params = request.queryString.split('&');
+  if (DEBUG) {
+    dump("DASH-SJS: request params = \"" + params + "\"\n");
+  }
+  for (var j = 0; j < params.length; ++j) {
+    var p = params[j];
+	if (p == key)
+	  return true;
+    if (p.indexOf(key + "=") === 0)
+	  return p.substring(key.length + 1);
+	if (p.indexOf("=") < 0 && key === "")
+	  return p;
+  }
+  return false;
+}
+
+function handleRequest(request, response)
+{
+  try {
+    var name = parseQuery(request, "name");
+    var range = request.hasHeader("Range") ? request.getHeader("Range")
+                                           : undefined;
+    
+    // Should not get request for 1st subsegment from 2nd stream, nor 2nd
+    // subsegment from 1st stream.
+    if (name == "dash-webm-video-320x180.webm" && range == "bytes=25514-32767" ||
+        name == "dash-webm-video-428x240.webm" && range == "bytes=228-35852") 
+    {
+      throw "Should not request " + name + " with byte-range " + range;
+    } else {
+      var rangeSplit = range.split("=");
+      if (rangeSplit.length != 2) {
+        throw "DASH-SJS: ERROR: invalid number of tokens (" + rangeSplit.length +
+              ") delimited by \'=\' in \'Range\' header.";
+      }
+      var offsets = rangeSplit[1].split("-");
+      if (offsets.length != 2) {
+        throw "DASH-SJS: ERROR: invalid number of tokens (" + offsets.length +
+              ") delimited by \'-\' in \'Range\' header.";
+      }
+      var startOffset = parseInt(offsets[0]);
+      var endOffset = parseInt(offsets[1]);
+      var file = Components.classes["@mozilla.org/file/directory_service;1"].
+                            getService(Components.interfaces.nsIProperties).
+                            get("CurWorkD", Components.interfaces.nsILocalFile);
+      var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
+                            createInstance(Components.interfaces.nsIFileInputStream);
+      var bis  = Components.classes["@mozilla.org/binaryinputstream;1"].
+                            createInstance(Components.interfaces.nsIBinaryInputStream);
+
+      var paths = "tests/dom/media/test/" + name;
+      var split = paths.split("/");
+      for (var i = 0; i < split.length; ++i) {
+        file.append(split[i]);
+      }
+
+      fis.init(file, -1, -1, false);
+      // Exception: start offset should be within file bounds.
+      if (startOffset > file.fileSize) {
+        throw "Starting offset [" + startOffset + "] is after end of file [" +
+              file.fileSize + "].";
+      }
+      // End offset may be too large in the MPD. Real world HTTP servers just
+      // return what data they can; do the same here - reduce the end offset.
+      if (endOffset >= file.fileSize) {
+        if (DEBUG) {
+          dump("DASH-SJS: reducing endOffset [" + endOffset + "] to fileSize [" +
+               (file.fileSize-1) + "]\n");
+        }
+        endOffset = file.fileSize-1;
+      }
+      fis.seek(Components.interfaces.nsISeekableStream.NS_SEEK_SET, startOffset);
+      bis.setInputStream(fis);
+      
+      var byteLengthToRead = endOffset + 1 - startOffset;
+      var totalBytesExpected = byteLengthToRead + startOffset;
+      if (DEBUG) {
+        dump("DASH-SJS: byteLengthToRead = " + byteLengthToRead +
+             " byteLengthToRead+startOffset = " + totalBytesExpected +
+             " fileSize = " + file.fileSize + "\n");
+      }
+
+      var bytes = bis.readBytes(byteLengthToRead);
+      response.setStatusLine(request.httpVersion, 206, "Partial Content");
+      response.setHeader("Content-Length", ""+bytes.length, false);
+      response.setHeader("Content-Type", "application/dash+xml", false);
+      var contentRange = "bytes " + startOffset + "-" + endOffset + "/" +
+                         file.fileSize;
+      response.setHeader("Content-Range", contentRange, false);
+      response.write(bytes, bytes.length);
+      bis.close();
+    }
+  } catch (e) {
+    dump ("DASH-SJS-ERROR: " + e + "\n");
+    response.setStatusLine(request.httpVersion, 404, "Not found");
+  }
+}