Add unit tests for ISO CENC (encrypted MP4).

media/filters/pipeline_integration_test.cc

 // Copyright (c) 2012 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 "media/filters/pipeline_integration_test_base.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_util.h"
 #include "build/build_config.h"
 #include "media/base/decoder_buffer.h"
 #include "media/base/test_data_util.h"
 #include "media/crypto/aes_decryptor.h"
 
 using testing::AtMost;
 
 namespace media {
 
 static const char kSourceId[] = "SourceId";
 static const char kClearKeySystem[] = "org.w3.clearkey";
 static const uint8 kInitData[] = { 0x69, 0x6e, 0x69, 0x74 };
 
 static const char kWebM[] = "video/webm; codecs=\"vp8,vorbis\"";
 static const char kAudioOnlyWebM[] = "video/webm; codecs=\"vorbis\"";
 static const char kVideoOnlyWebM[] = "video/webm; codecs=\"vp8\"";
 static const char kMP4[] = "video/mp4; codecs=\"avc1.4D4041,mp4a.40.2\"";
+static const char kMP4Video[] = "video/mp4; codecs=\"avc1.4D4041\"";
+static const char kMP4Audio[] = "audio/mp4; codecs=\"mp4a.40.2\"";
 
 // Key used to encrypt test files.
 static const uint8 kSecretKey[] = {
   0xeb, 0xdd, 0x62, 0xf1, 0x68, 0x14, 0xd2, 0x7b,
   0x68, 0xef, 0x12, 0x2a, 0xfc, 0xe4, 0xae, 0x3c
 };
 
 // The key ID for all encrypted files.
 static const uint8 kKeyId[] = {
   0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
   0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35
 };
 
 static const int kAppendWholeFile = -1;
 
 // Constants for the Media Source config change tests.
 static const int kAppendTimeSec = 1;
 static const int kAppendTimeMs = kAppendTimeSec * 1000;
 static const int k320WebMFileDurationMs = 2737;
 static const int k640WebMFileDurationMs = 2763;
+static const int k640IsoFileDurationMs = 2737;
+static const int k640IsoCencFileDurationMs = 2736;
 static const int k1280IsoFileDurationMs = 2736;
 
 // Note: Tests using this class only exercise the DecryptingDemuxerStream path.
 // They do not exercise the Decrypting{Audio|Video}Decoder path.
 class FakeEncryptedMedia {
  public:
   // Defines the behavior of the "app" that responds to EME events.
   class AppBase {
    public:
     virtual ~AppBase() {}
@@ skipping 102 matching lines @@
     // In this case, we need to call GenerateKeyRequest() to initialize a
     // session (which will call KeyMessage).
     if (current_key_system_.empty()) {
       EXPECT_TRUE(current_session_id_.empty());
       EXPECT_TRUE(decryptor->GenerateKeyRequest(
           kClearKeySystem, type, kInitData, arraysize(kInitData)));
     }
 
     EXPECT_FALSE(current_key_system_.empty());
     EXPECT_FALSE(current_session_id_.empty());
+
+    // Clear Key really needs the key ID in |init_data|. For WebM, they are the
+    // same, but this is not the case for ISO CENC. Therefore, provide the
+    // correct key ID.
+    const uint8* key_id = init_data.get();
+    int key_id_length = init_data_length;
+    if (type == "video/mp4") {

[xhwang, 2013/01/11 18:04:08]

How about audio, is audio not encrypted? How about 
|| type == "audio/mp4" ?

[ddorwin, 2013/01/11 18:30:39]

Done.

+      key_id = kKeyId;
+      key_id_length = arraysize(kKeyId);
+    }
+
     decryptor->AddKey(current_key_system_, kSecretKey, arraysize(kSecretKey),
-                      init_data.get(), init_data_length, current_session_id_);
+                      key_id, key_id_length, current_session_id_);
   }
 
   std::string current_key_system_;
   std::string current_session_id_;
 };
 
 // Ignores needkey and does not perform a license request
 class NoResponseApp : public FakeEncryptedMedia::AppBase {
  public:
   virtual void KeyAdded(const std::string& key_system,
@@ skipping 368 matching lines @@
   EXPECT_EQ(0, pipeline_->GetBufferedTimeRanges().start(0).InMilliseconds());
   EXPECT_EQ(kAppendTimeMs + k1280IsoFileDurationMs,
             pipeline_->GetBufferedTimeRanges().end(0).InMilliseconds());
 
   Play();
 
   EXPECT_TRUE(WaitUntilOnEnded());
   source.Abort();
   Stop();
 }
+
+TEST_F(PipelineIntegrationTest,
+       MediaSource_ConfigChange_Encrypted_MP4_CENC_VideoOnly) {
+  MockMediaSource source("bear-640x360-v_frag-cenc.mp4",
+                         kMP4Video, kAppendWholeFile);
+  FakeEncryptedMedia encrypted_media(new KeyProvidingApp());
+  StartPipelineWithEncryptedMedia(&source, &encrypted_media);
+
+  scoped_refptr<DecoderBuffer> second_file =
+      ReadTestDataFile("bear-1280x720-v_frag-cenc.mp4");
+
+  source.AppendAtTime(base::TimeDelta::FromSeconds(kAppendTimeSec),
+                      second_file->GetData(), second_file->GetDataSize());
+
+  source.EndOfStream();
+
+  EXPECT_EQ(1u, pipeline_->GetBufferedTimeRanges().size());
+  EXPECT_EQ(0, pipeline_->GetBufferedTimeRanges().start(0).InMilliseconds());
+  EXPECT_EQ(kAppendTimeMs + k1280IsoFileDurationMs,
+            pipeline_->GetBufferedTimeRanges().end(0).InMilliseconds());
+
+  Play();
+
+  EXPECT_TRUE(WaitUntilOnEnded());
+  source.Abort();
+  Stop();
+}
+
+// Config changes from encrypted to clear are not currently supported.
+// TODO(ddorwin): Figure out why this CHECKs in AppendAtTime().
+TEST_F(PipelineIntegrationTest,
+       DISABLED_MediaSource_ConfigChange_ClearThenEncrypted_MP4_CENC) {

[xhwang, 2013/01/11 18:04:08]

comment says this test is "enctyped to clear" but this test name says
"ClearThenEncrypted"?

[ddorwin, 2013/01/11 18:30:39]

Done.

+  MockMediaSource source("bear-640x360-av_frag.mp4", kMP4Video,
+                         kAppendWholeFile);
+  FakeEncryptedMedia encrypted_media(new KeyProvidingApp());
+  StartPipelineWithEncryptedMedia(&source, &encrypted_media);
+
+  scoped_refptr<DecoderBuffer> second_file =
+      ReadTestDataFile("bear-1280x720-v_frag-cenc.mp4");
+
+  source.AppendAtTime(base::TimeDelta::FromSeconds(kAppendTimeSec),
+                      second_file->GetData(), second_file->GetDataSize());
+
+  source.EndOfStream();
+
+  message_loop_.Run();
+  EXPECT_EQ(PIPELINE_ERROR_DECODE, pipeline_status_);
+
+  EXPECT_EQ(1u, pipeline_->GetBufferedTimeRanges().size());
+  EXPECT_EQ(0, pipeline_->GetBufferedTimeRanges().start(0).InMilliseconds());
+  // The second video was not added, so its time has not been added.
+  EXPECT_EQ(k640IsoFileDurationMs,
+            pipeline_->GetBufferedTimeRanges().end(0).InMilliseconds());
+
+  Play();
+
+  EXPECT_EQ(PIPELINE_ERROR_DECODE, WaitUntilEndedOrError());
+  source.Abort();
+}
+
+// Config changes from clear to encrypted are not currently supported.
+TEST_F(PipelineIntegrationTest,
+       MediaSource_ConfigChange_EncryptedThenClear_MP4_CENC) {

[xhwang, 2013/01/11 18:04:08]

ditto for comment and test name

[ddorwin, 2013/01/11 18:30:39]

Done.

+  MockMediaSource source("bear-640x360-v_frag-cenc.mp4",
+                         kMP4Video, kAppendWholeFile);
+  FakeEncryptedMedia encrypted_media(new KeyProvidingApp());
+  StartPipelineWithEncryptedMedia(&source, &encrypted_media);
+
+  scoped_refptr<DecoderBuffer> second_file =
+      ReadTestDataFile("bear-1280x720-av_frag.mp4");
+
+  source.AppendAtTime(base::TimeDelta::FromSeconds(kAppendTimeSec),
+                      second_file->GetData(), second_file->GetDataSize());
+
+  source.EndOfStream();
+
+  EXPECT_EQ(1u, pipeline_->GetBufferedTimeRanges().size());
+  EXPECT_EQ(0, pipeline_->GetBufferedTimeRanges().start(0).InMilliseconds());
+  // The second video was not added, so its time has not been added.
+  EXPECT_EQ(k640IsoCencFileDurationMs,
+            pipeline_->GetBufferedTimeRanges().end(0).InMilliseconds());
+
+  Play();
+
+  EXPECT_EQ(PIPELINE_ERROR_DECODE, WaitUntilEndedOrError());
+  source.Abort();
+}
 #endif
 
 TEST_F(PipelineIntegrationTest, BasicPlayback_16x9AspectRatio) {
   ASSERT_TRUE(Start(GetTestDataFilePath("bear-320x240-16x9-aspect.webm"),
                     PIPELINE_OK));
   Play();
   ASSERT_TRUE(WaitUntilOnEnded());
 }
 
 TEST_F(PipelineIntegrationTest, EncryptedPlayback_WebM) {
@@ skipping 36 matching lines @@
   source.EndOfStream();
   ASSERT_EQ(PIPELINE_OK, pipeline_status_);
 
   Play();
 
   ASSERT_TRUE(WaitUntilOnEnded());
   source.Abort();
   Stop();
 }
 
+#if defined(GOOGLE_CHROME_BUILD) || defined(USE_PROPRIETARY_CODECS)
+TEST_F(PipelineIntegrationTest, EncryptedPlayback_MP4_CENC_VideoOnly) {

[xhwang, 2013/01/11 18:04:08]

why this test needs proprietary codecs but the above (line 575) test doesn't?

[ddorwin, 2013/01/11 18:30:39]

The ifdef is at 550. :)

[xhwang, 2013/01/11 18:51:55]

Ah, okey then.

+  MockMediaSource source("bear-1280x720-v_frag-cenc.mp4",
+                         kMP4Video, kAppendWholeFile);
+  FakeEncryptedMedia encrypted_media(new KeyProvidingApp());
+  StartPipelineWithEncryptedMedia(&source, &encrypted_media);
+
+  source.EndOfStream();
+  ASSERT_EQ(PIPELINE_OK, pipeline_status_);
+
+  Play();
+
+  ASSERT_TRUE(WaitUntilOnEnded());
+  source.Abort();
+  Stop();
+}
+
+TEST_F(PipelineIntegrationTest, EncryptedPlayback_MP4_CENC_AudioOnly) {
+  MockMediaSource source("bear-1280x720-a_frag-cenc.mp4",
+                         kMP4Audio, kAppendWholeFile);
+  FakeEncryptedMedia encrypted_media(new KeyProvidingApp());
+  StartPipelineWithEncryptedMedia(&source, &encrypted_media);
+
+  source.EndOfStream();
+  ASSERT_EQ(PIPELINE_OK, pipeline_status_);
+
+  Play();
+
+  ASSERT_TRUE(WaitUntilOnEnded());
+  source.Abort();
+  Stop();
+}
+
+TEST_F(PipelineIntegrationTest,
+       EncryptedPlayback_NoEncryptedFrames_MP4_CENC_VideoOnly) {
+  MockMediaSource source("bear-1280x720-v_frag-cenc_clear-all.mp4",
+                         kMP4Video, kAppendWholeFile);
+  FakeEncryptedMedia encrypted_media(new NoResponseApp());
+  StartPipelineWithEncryptedMedia(&source, &encrypted_media);
+
+  source.EndOfStream();
+  ASSERT_EQ(PIPELINE_OK, pipeline_status_);
+
+  Play();
+
+  ASSERT_TRUE(WaitUntilOnEnded());
+  source.Abort();
+  Stop();
+}
+
+TEST_F(PipelineIntegrationTest,
+       EncryptedPlayback_NoEncryptedFrames_MP4_CENC_AudioOnly) {
+  MockMediaSource source("bear-1280x720-a_frag-cenc_clear-all.mp4",
+                         kMP4Audio, kAppendWholeFile);
+  FakeEncryptedMedia encrypted_media(new NoResponseApp());
+  StartPipelineWithEncryptedMedia(&source, &encrypted_media);
+
+  source.EndOfStream();
+  ASSERT_EQ(PIPELINE_OK, pipeline_status_);
+
+  Play();
+
+  ASSERT_TRUE(WaitUntilOnEnded());
+  source.Abort();
+  Stop();
+}
+#endif
+
 // TODO(acolwell): Fix flakiness http://crbug.com/117921
 TEST_F(PipelineIntegrationTest, DISABLED_SeekWhilePaused) {
   ASSERT_TRUE(Start(GetTestDataFilePath("bear-320x240.webm"), PIPELINE_OK));
 
   base::TimeDelta duration(pipeline_->GetMediaDuration());
   base::TimeDelta start_seek_time(duration / 4);
   base::TimeDelta seek_time(duration * 3 / 4);
 
   Play();
   ASSERT_TRUE(WaitUntilCurrentTimeIsAfter(start_seek_time));
@@ skipping 43 matching lines @@
 // Verify video decoder & renderer can handle aborted demuxer reads.
 TEST_F(PipelineIntegrationTest, ChunkDemuxerAbortRead_VideoOnly) {
   ASSERT_TRUE(TestSeekDuringRead("bear-320x240-video-only.webm", kVideoOnlyWebM,
                                  32768,
                                  base::TimeDelta::FromMilliseconds(200),
                                  base::TimeDelta::FromMilliseconds(1668),
                                  0x1C896, 65536));
 }
 
 }  // namespace media