Index: tools/clang-format/ClangFormat.cpp
===================================================================
--- tools/clang-format/ClangFormat.cpp
+++ tools/clang-format/ClangFormat.cpp
@@ -251,6 +251,14 @@
   StringRef AssumedFileName = (FileName == "-") ? AssumeFileName : FileName;
   FormatStyle FormatStyle =
       getStyle(Style, AssumedFileName, FallbackStyle, Code->getBuffer());
+
+  // MPEG transport streams use the ".ts" file extension. clang-format should
+  // not attempt to format those. MPEG TS' frame format starts with 0x47 every
+  // 189 bytes - detect that and return.
+  if (AssumedFileName.endswith(".ts") && Code->getBufferSize() > 188 &&
+          Code->getBuffer()[0] == 0x47 && Code->getBuffer()[188] == 0x47)
+    return true;
+
   if (SortIncludes.getNumOccurrences() != 0)
     FormatStyle.SortIncludes = SortIncludes;
   unsigned CursorPosition = Cursor;
Index: unittests/Format/FormatTestJS.cpp
===================================================================
--- unittests/Format/FormatTestJS.cpp
+++ unittests/Format/FormatTestJS.cpp
@@ -998,6 +998,13 @@
   verifyFormat("var regex = search.match(/(?:\?|&)times=([^?&]+)/i);");
 }
 
+TEST_F(FormatTestJS, IgnoresMpegTS) {
+  char mpegTS[200];
+  mpegTS[0] = 0x47;
+  mpegTS[188] = 0x47;
+  verifyFormat(mpegTS);
+}
+
 TEST_F(FormatTestJS, TypeAnnotations) {
   verifyFormat("var x: string;");
   verifyFormat("var x: {a: string; b: number;} = {};");