Implement ISO BMFF support in Media Source (try 2).

media/mp4/avc_unittest.cc

Index: media/mp4/avc_unittest.cc
diff --git a/media/mp4/avc_unittest.cc b/media/mp4/avc_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..cdcc413037426de42535f03ef4bf67ce27d75b5d
--- /dev/null
+++ b/media/mp4/avc_unittest.cc
@@ -0,0 +1,96 @@
+// 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 <string.h>
+
+#include "base/basictypes.h"
+#include "media/base/stream_parser_buffer.h"
+#include "media/mp4/avc.h"
+#include "media/mp4/box_definitions.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gtest/include/gtest/gtest-param-test.h"
+
+namespace media {
+namespace mp4 {
+
+static const uint8 kNALU1[] = { 0x01, 0x02, 0x03 };
+static const uint8 kNALU2[] = { 0x04, 0x05, 0x06, 0x07 };
+static const uint8 kExpected[] = {
+  0x00, 0x00, 0x00, 0x01, 0x01, 0x02, 0x03,
+  0x00, 0x00, 0x00, 0x01, 0x04, 0x05, 0x06, 0x07 };
+
+static const uint8 kExpectedParamSets[] = {
+  0x00, 0x00, 0x00, 0x01, 0x67, 0x12,
+  0x00, 0x00, 0x00, 0x01, 0x67, 0x34,
+  0x00, 0x00, 0x00, 0x01, 0x68, 0x56, 0x78, 0x9a};
+
+class AVCConversionTest : public testing::TestWithParam<int> {
+ protected:
+  void MakeInputForLength(int length_size, std::vector<uint8>* buf) {
+    buf->clear();
+    for (int i = 1; i < length_size; i++)
+      buf->push_back(0);
+    buf->push_back(sizeof(kNALU1));
+    buf->insert(buf->end(), kNALU1, kNALU1 + sizeof(kNALU1));
+
+    for (int i = 1; i < length_size; i++)
+      buf->push_back(0);
+    buf->push_back(sizeof(kNALU2));
+    buf->insert(buf->end(), kNALU2, kNALU2 + sizeof(kNALU2));
+  }
+};
+
+TEST_P(AVCConversionTest, ParseCorrectly) {
+  std::vector<uint8> buf;
+  MakeInputForLength(GetParam(), &buf);
+  EXPECT_TRUE(AVC::ConvertToAnnexB(GetParam(), &buf));
+  EXPECT_EQ(buf.size(), sizeof(kExpected));
+  EXPECT_EQ(0, memcmp(kExpected, &buf[0], sizeof(kExpected)));
+}
+
+TEST_P(AVCConversionTest, ParsePartial) {
+  std::vector<uint8> buf;
+  MakeInputForLength(GetParam(), &buf);
+  buf.pop_back();
+  EXPECT_FALSE(AVC::ConvertToAnnexB(GetParam(), &buf));
+  // This tests a buffer ending in the middle of a NAL length. For length size
+  // of one, this can't happen, so we skip that case.
+  if (GetParam() != 1) {
+    MakeInputForLength(GetParam(), &buf);
+    buf.erase(buf.end() - (sizeof(kNALU2) + 1), buf.end());
+    EXPECT_FALSE(AVC::ConvertToAnnexB(GetParam(), &buf));
+  }
+}
+
+TEST_P(AVCConversionTest, ParseEmpty) {
+  std::vector<uint8> buf;
+  EXPECT_TRUE(AVC::ConvertToAnnexB(GetParam(), &buf));
+  EXPECT_EQ(0u, buf.size());
+}
+
+INSTANTIATE_TEST_CASE_P(AVCConversionTestValues,
+                        AVCConversionTest,
+                        ::testing::Values(1, 2, 4));
+
+TEST(AVC, InsertParameterSetsTest) {
+  AVCDecoderConfigurationRecord avc_config;
+  avc_config.sps_list.resize(2);
+  avc_config.sps_list[0].push_back(0x67);
+  avc_config.sps_list[0].push_back(0x12);
+  avc_config.sps_list[1].push_back(0x67);
+  avc_config.sps_list[1].push_back(0x34);
+  avc_config.pps_list.resize(1);
+  avc_config.pps_list[0].push_back(0x68);
+  avc_config.pps_list[0].push_back(0x56);
+  avc_config.pps_list[0].push_back(0x78);
+
+  std::vector<uint8> buf;
+  buf.push_back(0x9a);
+  EXPECT_TRUE(AVC::InsertParameterSets(avc_config, &buf));
+  EXPECT_EQ(0, memcmp(kExpectedParamSets, &buf[0],
+                      sizeof(kExpectedParamSets)));
+}
+
+}  // namespace mp4
+}  // namespace media