Add Common Encryption support to BMFF, including subsample decryption.

media/mp4/mp4_stream_parser_unittest.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 <algorithm>
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
@@ skipping 10 matching lines @@
 
 using base::TimeDelta;
 
 namespace media {
 namespace mp4 {
 
 class MP4StreamParserTest : public testing::Test {
  public:
   MP4StreamParserTest()
       : parser_(new MP4StreamParser),
-        got_configs_(false) {
+        configs_received_(false) {
   }
 
  protected:
   scoped_ptr<MP4StreamParser> parser_;
   base::TimeDelta segment_start_;
-  bool got_configs_;
+  bool configs_received_;
 
   bool AppendData(const uint8* data, size_t length) {
-    parser_->Parse(data, length);
-    return true;
-  }
-
-  bool AppendDataInPieces(const uint8* data, size_t length) {
-    return AppendDataInPieces(data, length, 7);
+    return parser_->Parse(data, length);
   }
 
   bool AppendDataInPieces(const uint8* data, size_t length, size_t piece_size) {
     const uint8* start = data;
     const uint8* end = data + length;
     while (start < end) {
       size_t append_size = std::min(piece_size,
                                     static_cast<size_t>(end - start));
       if (!AppendData(start, append_size))
         return false;
       start += append_size;
     }
     return true;
   }
 
   void InitF(bool init_ok, base::TimeDelta duration) {
     DVLOG(1) << "InitF: ok=" << init_ok
               << ", dur=" << duration.InMilliseconds();
   }
 
   bool NewConfigF(const AudioDecoderConfig& ac,
                    const VideoDecoderConfig& vc) {
     DVLOG(1) << "NewConfigF: audio=" << ac.IsValidConfig()
              << ", video=" << vc.IsValidConfig();
 
     // TODO(strobe): Until http://crbug.com/122913 is fixed, we want to make
     // sure that this callback isn't called more than once per stream. Remove
     // when that bug is fixed.
-    EXPECT_FALSE(got_configs_);
-    got_configs_ = true;
+    EXPECT_FALSE(configs_received_);
+    configs_received_ = true;
     return true;
   }
 
   bool NewBuffersF(const StreamParser::BufferQueue& bufs) {
     DVLOG(2) << "NewBuffersF: " << bufs.size() << " buffers";
     for (StreamParser::BufferQueue::const_iterator buf = bufs.begin();
          buf != bufs.end(); buf++) {
       DVLOG(3) << "  n=" << buf - bufs.begin()
                << ", size=" << (*buf)->GetDataSize()
                << ", dur=" << (*buf)->GetDuration().InMilliseconds();
-      EXPECT_LE(segment_start_, (*buf)->GetTimestamp());
+      EXPECT_GE((*buf)->GetTimestamp(), segment_start_);
     }
     return true;
   }
 
   bool KeyNeededF(scoped_array<uint8> init_data, int init_data_size) {
     DVLOG(1) << "KeyNeededF: " << init_data_size;
     return true;
   }
 
   void NewSegmentF(TimeDelta start_dts) {
     DVLOG(1) << "NewSegmentF: " << start_dts.InMilliseconds();
     segment_start_ = start_dts;
   }
 
   void InitializeParser() {
     parser_->Init(
         base::Bind(&MP4StreamParserTest::InitF, base::Unretained(this)),
         base::Bind(&MP4StreamParserTest::NewConfigF, base::Unretained(this)),
         base::Bind(&MP4StreamParserTest::NewBuffersF, base::Unretained(this)),
         base::Bind(&MP4StreamParserTest::NewBuffersF, base::Unretained(this)),
         base::Bind(&MP4StreamParserTest::KeyNeededF, base::Unretained(this)),
         base::Bind(&MP4StreamParserTest::NewSegmentF, base::Unretained(this)));
   }
 
-  bool ParseMP4File(const std::string& filename, int append_size) {
+  bool ParseMP4File(const std::string& filename, int append_bytes) {
     InitializeParser();
 
     scoped_refptr<DecoderBuffer> buffer = ReadTestDataFile(filename);
     EXPECT_TRUE(AppendDataInPieces(buffer->GetData(),
                                    buffer->GetDataSize(),
-                                   append_size));
+                                   append_bytes));
     return true;
   }
 };
 
-TEST_F(MP4StreamParserTest, TestParseBearDASH) {
+
+
+TEST_F(MP4StreamParserTest, TestUnalignedAppend) {
+  // Test small, non-segment-aligned appends (small enough to exercise
+  // incremental append system)
   ParseMP4File("bear.1280x720_dash.mp4", 512);
 }
 
 TEST_F(MP4StreamParserTest, TestMultiFragmentAppend) {
+  // Large size ensures multiple fragments are appended in one call (size is
+  // larger than this particular test file)
   ParseMP4File("bear.1280x720_dash.mp4", 768432);
 }
 
 TEST_F(MP4StreamParserTest, TestReinitialization) {
   InitializeParser();
 
   scoped_refptr<DecoderBuffer> buffer =
       ReadTestDataFile("bear.1280x720_dash.mp4");
   EXPECT_TRUE(AppendDataInPieces(buffer->GetData(),
                                  buffer->GetDataSize(),
                                  512));
   EXPECT_TRUE(AppendDataInPieces(buffer->GetData(),
                                  buffer->GetDataSize(),
                                  512));
 }
 
 }  // namespace mp4
 }  // namespace media