1 files changed, 148 insertions, 0 deletions
diff --git a/dom/media/mediasource/gtest/TestContainerParser.cpp b/dom/media/mediasource/gtest/TestContainerParser.cpp
new file mode 100644
index 0000000000..dd5a87b64b
--- /dev/null
+++ b/dom/media/mediasource/gtest/TestContainerParser.cpp
@@ -0,0 +1,148 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <gtest/gtest.h>
+#include <stdint.h>
+
+#include "ContainerParser.h"
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/gtest/MozAssertions.h"
+
+using namespace mozilla;
+using TimeUnit = mozilla::media::TimeUnit;
+
+TEST(ContainerParser, MIMETypes)
+{
+  const char* containerTypes[] = {"video/webm", "audio/webm", "video/mp4",
+                                  "audio/mp4", "audio/aac"};
+  UniquePtr<ContainerParser> parser;
+  for (size_t i = 0; i < ArrayLength(containerTypes); ++i) {
+    Maybe<MediaContainerType> containerType =
+        MakeMediaContainerType(containerTypes[i]);
+    ASSERT_TRUE(containerType.isSome());
+    parser = ContainerParser::CreateForMIMEType(*containerType);
+    ASSERT_NE(parser, nullptr);
+  }
+}
+
+already_AddRefed<MediaByteBuffer> make_adts_header() {
+  const uint8_t test[] = {0xff, 0xf1, 0x50, 0x80, 0x03, 0x1f, 0xfc};
+  RefPtr<MediaByteBuffer> buffer(new MediaByteBuffer);
+  buffer->AppendElements(test, ArrayLength(test));
+  return buffer.forget();
+}
+
+TEST(ContainerParser, ADTSHeader)
+{
+  UniquePtr<ContainerParser> parser;
+  parser = ContainerParser::CreateForMIMEType(
+      MediaContainerType(MEDIAMIMETYPE("audio/aac")));
+  ASSERT_NE(parser, nullptr);
+
+  // Audio data should have no gaps.
+  EXPECT_EQ(parser->GetRoundingError(), 0);
+
+  // Test a valid header.
+  RefPtr<MediaByteBuffer> header = make_adts_header();
+  EXPECT_NS_SUCCEEDED(parser->IsInitSegmentPresent(MediaSpan(header)));
+
+  // Test variations.
+  uint8_t save = header->ElementAt(1);
+  for (uint8_t i = 1; i < 3; ++i) {
+    // Set non-zero layer.
+    header->ReplaceElementAt(1, (header->ElementAt(1) & 0xf9) | (i << 1));
+    EXPECT_FALSE(NS_SUCCEEDED(parser->IsInitSegmentPresent(MediaSpan(header))))
+        << "Accepted non-zero layer in header.";
+  }
+  header->ReplaceElementAt(1, save);
+  save = header->ElementAt(2);
+  header->ReplaceElementAt(2, (header->ElementAt(2) & 0x3b) | (15 << 2));
+  EXPECT_FALSE(NS_SUCCEEDED(parser->IsInitSegmentPresent(MediaSpan(header))))
+      << "Accepted explicit frequency in header.";
+  header->ReplaceElementAt(2, save);
+
+  // Test a short header.
+  header->SetLength(6);
+  EXPECT_FALSE(NS_SUCCEEDED(parser->IsInitSegmentPresent(MediaSpan(header))))
+      << "Accepted too-short header.";
+  EXPECT_FALSE(NS_SUCCEEDED(parser->IsMediaSegmentPresent(MediaSpan(header))))
+      << "Found media segment when there was just a partial header.";
+
+  // Test a header with short data.
+  header = make_adts_header();
+  header->AppendElements(1);
+  EXPECT_TRUE(NS_SUCCEEDED(parser->IsInitSegmentPresent(MediaSpan(header))))
+      << "Rejected a valid header.";
+  EXPECT_TRUE(NS_SUCCEEDED(parser->IsMediaSegmentPresent(MediaSpan(header))))
+      << "Rejected a one-byte media segment.";
+
+  // Test parse results.
+  header = make_adts_header();
+  EXPECT_FALSE(NS_SUCCEEDED(parser->IsMediaSegmentPresent(MediaSpan(header))))
+      << "Found media segment when there was just a header.";
+  TimeUnit start;
+  TimeUnit end;
+  EXPECT_TRUE(NS_FAILED(
+      parser->ParseStartAndEndTimestamps(MediaSpan(header), start, end)));
+
+  EXPECT_TRUE(parser->HasInitData());
+  EXPECT_TRUE(parser->HasCompleteInitData());
+  MediaByteBuffer* init = parser->InitData();
+  ASSERT_NE(init, nullptr);
+  EXPECT_EQ(init->Length(), header->Length());
+
+  EXPECT_EQ(parser->InitSegmentRange(),
+            MediaByteRange(0, int64_t(header->Length())));
+  // Media segment range should be empty here.
+  EXPECT_EQ(parser->MediaHeaderRange(), MediaByteRange());
+  EXPECT_EQ(parser->MediaSegmentRange(), MediaByteRange());
+}
+
+TEST(ContainerParser, ADTSBlankMedia)
+{
+  UniquePtr<ContainerParser> parser;
+  parser = ContainerParser::CreateForMIMEType(
+      MediaContainerType(MEDIAMIMETYPE("audio/aac")));
+  ASSERT_NE(parser, nullptr);
+
+  // Audio data should have no gaps.
+  EXPECT_EQ(parser->GetRoundingError(), 0);
+
+  // Test the header only.
+  RefPtr<MediaByteBuffer> header = make_adts_header();
+  EXPECT_NS_SUCCEEDED(parser->IsInitSegmentPresent(MediaSpan(header)));
+
+  // Test with the correct length of (invalid) frame data.
+  size_t header_length = header->Length();
+  size_t data_length = 24;
+  size_t frame_length = header_length + data_length;
+  header->AppendElements(data_length);
+  EXPECT_TRUE(NS_SUCCEEDED(parser->IsInitSegmentPresent(MediaSpan(header))))
+      << "Rejected a valid header.";
+  EXPECT_TRUE(NS_SUCCEEDED(parser->IsMediaSegmentPresent(MediaSpan(header))))
+      << "Rejected a full (but zeroed) media segment.";
+  TimeUnit start;
+  TimeUnit end;
+  // We don't report timestamps from ADTS.
+  EXPECT_TRUE(NS_FAILED(
+      parser->ParseStartAndEndTimestamps(MediaSpan(header), start, end)));
+  EXPECT_TRUE(start.IsZero());
+  EXPECT_TRUE(end.IsZero());
+
+  // Verify the parser calculated header and packet data boundaries.
+  EXPECT_TRUE(parser->HasInitData());
+  EXPECT_TRUE(parser->HasCompleteInitData());
+  MediaByteBuffer* init = parser->InitData();
+  ASSERT_NE(init, nullptr);
+  EXPECT_EQ(init->Length(), header_length)
+      << "Found incorrect init segment length.";
+  EXPECT_EQ(parser->InitSegmentRange(),
+            MediaByteRange(0, int64_t(header_length)));
+  // In ADTS the Media Header is the same as the Media Segment.
+  MediaByteRange expected_media =
+      MediaByteRange(int64_t(header_length), int64_t(frame_length));
+  EXPECT_EQ(parser->MediaHeaderRange(), expected_media);
+  EXPECT_EQ(parser->MediaSegmentRange(), expected_media);
+}