Implemented HEVC video demuxing and parsing

content/browser/media/media_canplaytype_browsertest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string>
 
 #include "content/browser/media/media_browsertest.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/content_browser_test_utils.h"
 #include "content/shell/browser/shell.h"
@@ skipping 21 matching lines @@
 const char kOggOpusProbably[] = "probably";
 const char* kMpeg2AacProbably = kPropProbably;
 #else
 const char kOggVideoProbably[] = "";
 const char kOggVideoMaybe[] = "";
 const char kTheoraProbably[] = "";
 const char kOggOpusProbably[] = "";
 const char kMpeg2AacProbably[] = "";
 #endif  // !OS_ANDROID
 
+#if defined(ENABLE_HEVC_DEMUXING)
+const char* kHevcSupported = kPropProbably;
+#else
+const char* kHevcSupported = kNot;
+#endif
+
+
 namespace content {
 
 class MediaCanPlayTypeTest : public MediaBrowserTest {
  public:
   MediaCanPlayTypeTest() : url_("about:blank") { }
 
   void SetUpOnMainThread() override { NavigateToURL(shell(), url_); }
 
   std::string CanPlay(const std::string& type) {
     std::string command("document.createElement('video').canPlayType(");
@@ skipping 114 matching lines @@
 
     // Unknown codecs.
     EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"avc2\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"avc4\"'"));
 
     EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"avc1x\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"avc3x\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"mp4ax\"'"));
 
     EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"unknown\"'"));
+
+    // Don't allow incomplete/ambiguous codec ids for HEVC.
+    // Codec string must have info about codec level/profile, as described in
+    // ISO/IEC FDIS 14496-15 section E.3, for example "hev1.1.6.L93.B0"
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1\"'"));
+
+    // Invalid codecs that look like something similar to HEVC/H.265
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1x\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1x\"'"));
+    // "hev0" is invalid, should be "hev1"

[ddorwin, 2015/06/19 21:40:14]

nit: These four comments can probably be collapsed to one (something about "not
'1'").

[servolk, 2015/06/20 00:05:07]

Done + added "hevc.xxx" and upper-case variants.

+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev0.1.6.L93.B0\"'"));
+    // "hvc0" is invalid, should be "hvc1"
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc0.1.6.L93.B0\"'"));
+    // "hev2" is invalid, should be "hev1"
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev2.1.6.L93.B0\"'"));
+    // "hvc2" is invalid, should be "hvc1"
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc2.1.6.L93.B0\"'"));
+
+    // TODO(servolk): Uncomment these after crbug.com/482761 is fixed.
+    // Trailing dot is not allowed.
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.L93.B0.\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.L93.B0.\"'"));
+    // Invalid general_profile_space/general_profile_idc
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.x.6.L93.B0\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.x.6.L93.B0\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.d1.6.L93.B0\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.d1.6.L93.B0\"'"));
+    // Invalid general_profile_compatibility_flags
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.x.L93.B0\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.x.L93.B0\"'"));
+    // Invalid general_tier_flag
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.x.B0\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.x.B0\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.Lx.B0\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.Lx.B0\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.Hx.B0\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.Hx.B0\"'"));
+    // Invalid constraint flags
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.L93.x\"'"));
+    //EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.L93.x\"'"));
   }
 
   void TestOGGUnacceptableCombinations(const std::string& mime) {
     // Codecs not belonging to OGG container.
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp8\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp8.0\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp8, opus\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp8, vorbis\"'"));
 
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp9\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp9.0\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp9, opus\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp9, vorbis\"'"));
 
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1.4D401E\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3.64001F\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1, vorbis\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3, vorbis\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1, opus\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3, opus\"'"));
 
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.L93.B0\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.L93.B0\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.L93.B0,opus\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.L93.B0,opus\"'"));
+
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"mp4a.40\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"mp4a.40.2\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"mp4a.40.02\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"theora, mp4a.40.2\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"theora, mp4a.40.02\"'"));
 
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"1\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"theora, 1\"'"));
 
     // Codecs are case sensitive.
@@ skipping 21 matching lines @@
 
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1.4D401E\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3.64001F\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1, vorbis\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3, vorbis\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1, opus\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3, opus\"'"));
 
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.L93.B0\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.L93.B0\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.L93.B0,opus\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.L93.B0,opus\"'"));
+
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"mp4a.40\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"mp4a.40.2\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"mp4a.40.02\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp8, mp4a.40\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp9, mp4a.40\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp8.0, mp4a.40\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"vp9.0, mp4a.40\"'"));
 
     // Codecs are case sensitive.
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"VP8, Vorbis\"'"));
@@ skipping 17 matching lines @@
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"theora\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"theora, 1\"'"));
 
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1.4D401E\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3.64001F\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc1, 1\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"avc3, 1\"'"));
 
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.L93.B0\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.L93.B0\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hev1.1.6.L93.B0,opus\"'"));
+    EXPECT_EQ(kNot, CanPlay("'" + mime + "; codecs=\"hvc1.1.6.L93.B0,opus\"'"));
+
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"mp4a.40\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"mp4a.40.2\"'"));
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"mp4a.40.02\"'"));
 
     // Unknown codec.
     EXPECT_EQ(kNot, CanPlay("'" + mime +"; codecs=\"unknown\"'"));
   }
 
  private:
   GURL url_;
@@ skipping 194 matching lines @@
 
   EXPECT_EQ(kPropMaybe, CanPlay("'video/mp4; codecs=\"avc1, mp4a.40.2\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/mp4; codecs=\"avc1, mp4a.40.02\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/mp4; codecs=\"avc3, mp4a.40.2\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/mp4; codecs=\"avc3, mp4a.40.02\"'"));
   EXPECT_EQ(kPropMaybe,
             CanPlay("'video/mp4; codecs=\"avc1.42E01E, mp4a.40\"'"));
   EXPECT_EQ(kPropMaybe,
             CanPlay("'video/mp4; codecs=\"avc3.42E01E, mp4a.40\"'"));
 
+  // TODO(servolk): Add more unit test coverage once we have more info about
+  // various HEVC levels/profiles (crbug.com/482761).
+  EXPECT_EQ(kHevcSupported, CanPlay("'video/mp4; codecs=\"hev1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kHevcSupported, CanPlay("'video/mp4; codecs=\"hvc1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kHevcSupported,
+            CanPlay("'video/mp4; codecs=\"hev1.1.6.L93.B0, mp4a.40.5\"'"));
+  EXPECT_EQ(kHevcSupported,
+            CanPlay("'video/mp4; codecs=\"hvc1.1.6.L93.B0, mp4a.40.5\"'"));
+
   TestMPEGUnacceptableCombinations("video/mp4");
 
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v'"));
 
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v; codecs=\"avc1\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v; codecs=\"avc3\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v; codecs=\"mp4a.40\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v; codecs=\"avc1, mp4a.40\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v; codecs=\"avc3, mp4a.40\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v; codecs=\"avc1, avc3\"'"));
@@ skipping 23 matching lines @@
 
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v; codecs=\"avc1, mp4a.40.2\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v; codecs=\"avc1, mp4a.40.02\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v; codecs=\"avc3, mp4a.40.2\"'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'video/x-m4v; codecs=\"avc3, mp4a.40.02\"'"));
   EXPECT_EQ(kPropMaybe,
             CanPlay("'video/x-m4v; codecs=\"avc1.42E01E, mp4a.40\"'"));
   EXPECT_EQ(kPropMaybe,
             CanPlay("'video/x-m4v; codecs=\"avc3.42E01E, mp4a.40\"'"));
 
+  EXPECT_EQ(kHevcSupported,
+            CanPlay("'video/x-m4v; codecs=\"hev1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kHevcSupported,
+            CanPlay("'video/x-m4v; codecs=\"hvc1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kHevcSupported,
+            CanPlay("'video/x-m4v; codecs=\"hev1.1.6.L93.B0, mp4a.40.5\"'"));
+  EXPECT_EQ(kHevcSupported,
+            CanPlay("'video/x-m4v; codecs=\"hvc1.1.6.L93.B0, mp4a.40.5\"'"));
+
   TestMPEGUnacceptableCombinations("video/x-m4v");
 
   EXPECT_EQ(kPropMaybe, CanPlay("'audio/mp4'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'audio/mp4; codecs=\"mp4a.40\"'"));
   EXPECT_EQ(kPropProbably, CanPlay("'audio/mp4; codecs=\"mp4a.40.2\"'"));
   EXPECT_EQ(kPropProbably, CanPlay("'audio/mp4; codecs=\"mp4a.40.02\"'"));
   EXPECT_EQ(kPropProbably, CanPlay("'audio/mp4; codecs=\"mp4a.40.5\"'"));
   EXPECT_EQ(kPropProbably, CanPlay("'audio/mp4; codecs=\"mp4a.40.05\"'"));
   EXPECT_EQ(kPropProbably, CanPlay("'audio/mp4; codecs=\"mp4a.40.29\"'"));
 
   EXPECT_EQ(kNot, CanPlay("'audio/mp4; codecs=\"avc1\"'"));
   EXPECT_EQ(kNot, CanPlay("'audio/mp4; codecs=\"avc3\"'"));
   EXPECT_EQ(kNot, CanPlay("'audio/mp4; codecs=\"avc1, mp4a.40\"'"));
   EXPECT_EQ(kNot, CanPlay("'audio/mp4; codecs=\"avc3, mp4a.40\"'"));
 
   EXPECT_EQ(kNot, CanPlay("'audio/mp4; codecs=\"avc1.4D401E\"'"));
   EXPECT_EQ(kNot, CanPlay("'audio/mp4; codecs=\"avc3.64001F\"'"));
 
+  EXPECT_EQ(kNot, CanPlay("'audio/mp4; codecs=\"hev1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kNot, CanPlay("'audio/mp4; codecs=\"hvc1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kNot, CanPlay("'audio/mp4; codecs=\"hev1.1.6.L93.B0,mp4a.40.5\"'"));
+  EXPECT_EQ(kNot, CanPlay("'audio/mp4; codecs=\"hvc1.1.6.L93.B0,mp4a.40.5\"'"));
+
   TestMPEGUnacceptableCombinations("audio/mp4");
 
   EXPECT_EQ(kPropMaybe, CanPlay("'audio/x-m4a'"));
   EXPECT_EQ(kPropMaybe, CanPlay("'audio/x-m4a; codecs=\"mp4a.40\"'"));
   EXPECT_EQ(kPropProbably, CanPlay("'audio/x-m4a; codecs=\"mp4a.40.2\"'"));
   EXPECT_EQ(kPropProbably, CanPlay("'audio/x-m4a; codecs=\"mp4a.40.02\"'"));
   EXPECT_EQ(kPropProbably, CanPlay("'audio/x-m4a; codecs=\"mp4a.40.5\"'"));
   EXPECT_EQ(kPropProbably, CanPlay("'audio/x-m4a; codecs=\"mp4a.40.05\"'"));
   EXPECT_EQ(kPropProbably, CanPlay("'audio/x-m4a; codecs=\"mp4a.40.29\"'"));
 
   EXPECT_EQ(kNot, CanPlay("'audio/x-m4a; codecs=\"avc1\"'"));
   EXPECT_EQ(kNot, CanPlay("'audio/x-m4a; codecs=\"avc3\"'"));
   EXPECT_EQ(kNot, CanPlay("'audio/x-m4a; codecs=\"avc1, mp4a\"'"));
   EXPECT_EQ(kNot, CanPlay("'audio/x-m4a; codecs=\"avc3, mp4a\"'"));
 
   EXPECT_EQ(kNot, CanPlay("'audio/x-m4a; codecs=\"avc1.4D401E\"'"));
   EXPECT_EQ(kNot, CanPlay("'audio/x-m4a; codecs=\"avc3.64001F\"'"));
 
+  EXPECT_EQ(kNot, CanPlay("'audio/x-m4a; codecs=\"hev1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kNot, CanPlay("'audio/x-m4a; codecs=\"hvc1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kNot,
+            CanPlay("'audio/x-m4a; codecs=\"hev1.1.6.L93.B0, mp4a.40.5\"'"));
+  EXPECT_EQ(kNot,
+            CanPlay("'audio/x-m4a; codecs=\"hvc1.1.6.L93.B0, mp4a.40.5\"'"));
+
   TestMPEGUnacceptableCombinations("audio/x-m4a");
 }
 
 // When modifying this test, also change CodecSupportTest_Avc3Variants.
 IN_PROC_BROWSER_TEST_F(MediaCanPlayTypeTest, CodecSupportTest_Avc1Variants) {
   // avc1 without extensions results in "maybe" for compatibility.
   EXPECT_EQ(kPropMaybe, CanPlay("'video/mp4; codecs=\"avc1\"'"));
 
   // Any 6-digit hexadecimal number will result in at least "maybe".
   EXPECT_EQ(kPropMaybe, CanPlay("'video/mp4; codecs=\"avc1.123456\"'"));
@@ skipping 238 matching lines @@
   EXPECT_EQ(kPropProbably, CanPlay("'video/mp4; codecs=\"avc1.42E033\"'"));
   EXPECT_EQ(kPropMaybe,    CanPlay("'video/mp4; codecs=\"avc1.42E034\"'"));
   EXPECT_EQ(kPropMaybe,    CanPlay("'video/mp4; codecs=\"avc1.42E035\"'"));
   // Verify that decimal representations of levels are not supported.
   EXPECT_EQ(kPropMaybe,    CanPlay("'video/mp4; codecs=\"avc1.42E005\"'"));
   EXPECT_EQ(kPropMaybe,    CanPlay("'video/mp4; codecs=\"avc1.42E050\"'"));
   EXPECT_EQ(kPropMaybe,    CanPlay("'video/mp4; codecs=\"avc1.42E051\"'"));
   EXPECT_EQ(kPropMaybe,    CanPlay("'video/mp4; codecs=\"avc1.42E052\"'"));
 }
 
+// TODO(servolk): Add extensive tests for various HEVC profiles, levels and
+// tiers, similar to avc1/avc3 tests above, after proper HEVC codec id parsing
+// is implemented (crbug.com/482761)
+
 // All values that return positive results are tested. There are also
 // negative tests for values around or that could potentially be confused with
 // (e.g. case, truncation, hex <-> deciemal conversion) those values that return
 // positive results.
 IN_PROC_BROWSER_TEST_F(MediaCanPlayTypeTest, CodecSupportTest_Mp4aVariants) {
   EXPECT_EQ(kNot,          CanPlay("'audio/mp4; codecs=\"mp4a\"'"));
   EXPECT_EQ(kNot,          CanPlay("'audio/mp4; codecs=\"mp4a.\"'"));
 
   EXPECT_EQ(kNot,          CanPlay("'audio/mp4; codecs=\"mp4a.6\"'"));
   EXPECT_EQ(kNot,          CanPlay("'audio/mp4; codecs=\"mp4a.60\"'"));
@@ skipping 121 matching lines @@
       CanPlay("'application/x-mpegurl; codecs=\"avc1.42E01E, mp4a.40.2\"'"));
   EXPECT_EQ(probablyCanPlayHLS,
       CanPlay("'application/x-mpegurl; codecs=\"avc1.42E01E, mp4a.40.02\"'"));
   EXPECT_EQ(probablyCanPlayHLS,
       CanPlay("'application/x-mpegurl; codecs=\"avc3.42E01E, mp4a.40.5\"'"));
   EXPECT_EQ(probablyCanPlayHLS,
       CanPlay("'application/x-mpegurl; codecs=\"avc3.42E01E, mp4a.40.05\"'"));
   EXPECT_EQ(probablyCanPlayHLS,
       CanPlay("'application/x-mpegurl; codecs=\"avc3.42E01E, mp4a.40.29\"'"));
 
+  EXPECT_EQ(kNot,
+      CanPlay("'application/x-mpegurl; codecs=\"hev1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kNot,
+      CanPlay("'application/x-mpegurl; codecs=\"hvc1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kNot,
+      CanPlay("'application/x-mpegurl; codecs=\"hev1.1.6.L93.B0,mp4a.40.5\"'"));
+  EXPECT_EQ(kNot,
+      CanPlay("'application/x-mpegurl; codecs=\"hvc1.1.6.L93.B0,mp4a.40.5\"'"));
+
   EXPECT_EQ(maybeCanPlayHLS,
             CanPlay("'application/x-mpegurl; codecs=\"avc1, mp4a.40.2\"'"));
   EXPECT_EQ(maybeCanPlayHLS,
             CanPlay("'application/x-mpegurl; codecs=\"avc1, mp4a.40.02\"'"));
   EXPECT_EQ(maybeCanPlayHLS,
             CanPlay("'application/x-mpegurl; codecs=\"avc3, mp4a.40.2\"'"));
   EXPECT_EQ(maybeCanPlayHLS,
             CanPlay("'application/x-mpegurl; codecs=\"avc3, mp4a.40.02\"'"));
   EXPECT_EQ(maybeCanPlayHLS,
       CanPlay("'application/x-mpegurl; codecs=\"avc1.42E01E, mp4a.40\"'"));
@@ skipping 52 matching lines @@
       CanPlay("'application/vnd.apple.mpegurl; codecs=\"avc3, mp4a.40.2\"'"));
   EXPECT_EQ(maybeCanPlayHLS,
       CanPlay("'application/vnd.apple.mpegurl; codecs=\"avc3, mp4a.40.02\"'"));
   EXPECT_EQ(maybeCanPlayHLS,
       CanPlay("'application/vnd.apple.mpegurl; "
               "codecs=\"avc1.42E01E, mp4a.40\"'"));
   EXPECT_EQ(maybeCanPlayHLS,
       CanPlay("'application/vnd.apple.mpegurl; "
               "codecs=\"avc3.42E01E, mp4a.40\"'"));
 
+  EXPECT_EQ(kNot,
+      CanPlay("'application/vnd.apple.mpegurl; codecs=\"hev1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kNot,
+      CanPlay("'application/vnd.apple.mpegurl; codecs=\"hvc1.1.6.L93.B0\"'"));
+  EXPECT_EQ(kNot,
+      CanPlay("'application/vnd.apple.mpegurl; "
+              "codecs=\"hev1.1.6.L93.B0,mp4a.40.5\"'"));
+  EXPECT_EQ(kNot,
+      CanPlay("'application/vnd.apple.mpegurl; "
+              "codecs=\"hvc1.1.6.L93.B0,mp4a.40.5\"'"));
+
   TestMPEGUnacceptableCombinations("application/vnd.apple.mpegurl");
 }
 
 }  // namespace content