TEST(ContainerParser, ADTSHeader) {
nsAutoPtr<ContainerParser> parser;
parser = ContainerParser::CreateForMIMEType(NS_LITERAL_CSTRING("audio/aac"));
ASSERT_NE(parser, nullptr);
// Audio data should have no gaps.
EXPECT_EQ(parser->GetRoundingError(), 0);
// Test a valid header.
nsRefPtr<MediaByteBuffer> header = make_adts_header();
EXPECT_TRUE(parser->IsInitSegmentPresent(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(parser->IsInitSegmentPresent(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(parser->IsInitSegmentPresent(header))
<< "Accepted explicit frequency in header.";
header->ReplaceElementAt(2, save);
// Test a short header.
header->SetLength(6);
EXPECT_FALSE(parser->IsInitSegmentPresent(header))
<< "Accepted too-short header.";
EXPECT_FALSE(parser->IsMediaSegmentPresent(header))
<< "Found media segment when there was just a partial header.";
// Test parse results.
header = make_adts_header();
EXPECT_FALSE(parser->IsMediaSegmentPresent(header))
<< "Found media segment when there was just a header.";
int64_t start = 0;
int64_t end = 0;
EXPECT_FALSE(parser->ParseStartAndEndTimestamps(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, header->Length()));
// Media segment range should be empty here.
EXPECT_EQ(parser->MediaHeaderRange(), MediaByteRange());
EXPECT_EQ(parser->MediaSegmentRange(), MediaByteRange());
}
TEST(ContainerParser, ADTSBlankMedia)
{
nsAutoPtr<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_TRUE(NS_SUCCEEDED(parser->IsInitSegmentPresent(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(header)))
<< "Rejected a valid header.";
EXPECT_TRUE(NS_SUCCEEDED(parser->IsMediaSegmentPresent(header)))
<< "Rejected a full (but zeroed) media segment.";
int64_t start = 0;
int64_t end = 0;
// We don't report timestamps from ADTS.
EXPECT_TRUE(
NS_FAILED(parser->ParseStartAndEndTimestamps(header, start, end)));
EXPECT_EQ(start, 0);
EXPECT_EQ(end, 0);
// 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);
}
