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/* -*- 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
#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 < std::size(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, std::size(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);
}