// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/formats/mp4/box_reader.h"
#include <stdint.h>
#include <string.h>
#include <memory>
#include "base/logging.h"
#include "build/build_config.h"
#include "media/base/mock_media_log.h"
#include "media/formats/mp4/box_definitions.h"
#include "media/formats/mp4/parse_result.h"
#include "media/formats/mp4/rcheck.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::HasSubstr;
using ::testing::StrictMock;
namespace media {
namespace mp4 {
static const uint8_t kSkipBox[] = {
// Top-level test box containing three children
0x00, 0x00, 0x00, 0x40, 's', 'k', 'i', 'p', 0x01, 0x02, 0x03, 0x04, 0x05,
0x06, 0x07, 0x08, 0xf9, 0x0a, 0x0b, 0x0c, 0xfd, 0x0e, 0x0f, 0x10,
// Ordinary (8-byte header) child box
0x00, 0x00, 0x00, 0x0c, 'p', 's', 's', 'h', 0xde, 0xad, 0xbe, 0xef,
// Extended-size header child box
0x00, 0x00, 0x00, 0x01, 'p', 's', 's', 'h', 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x14, 0xfa, 0xce, 0xca, 0xfe,
// Empty free box
0x00, 0x00, 0x00, 0x08, 'f', 'r', 'e', 'e',
// Trailing garbage
0x00};
struct FreeBox : Box {
bool Parse(BoxReader* reader) override {
return true;
}
FourCC BoxType() const override { return FOURCC_FREE; }
};
struct PsshBox : Box {
uint32_t val;
bool Parse(BoxReader* reader) override {
return reader->Read4(&val);
}
FourCC BoxType() const override { return FOURCC_PSSH; }
};
struct SkipBox : Box {
uint8_t a, b;
uint16_t c;
int32_t d;
int64_t e;
std::vector<PsshBox> kids;
FreeBox mpty;
bool Parse(BoxReader* reader) override {
RCHECK(reader->ReadFullBoxHeader() &&
reader->Read1(&a) &&
reader->Read1(&b) &&
reader->Read2(&c) &&
reader->Read4s(&d) &&
reader->Read4sInto8s(&e));
return reader->ScanChildren() &&
reader->ReadChildren(&kids) &&
reader->MaybeReadChild(&mpty);
}
FourCC BoxType() const override { return FOURCC_SKIP; }
SkipBox();
~SkipBox() override;
};
SkipBox::SkipBox() = default;
SkipBox::~SkipBox() = default;
class BoxReaderTest : public testing::Test {
public:
BoxReaderTest() = default;
protected:
std::vector<uint8_t> GetBuf() {
return std::vector<uint8_t>(kSkipBox, kSkipBox + sizeof(kSkipBox));
}
void TestTopLevelBox(const uint8_t* data, size_t data_size, uint32_t fourCC) {
std::vector<uint8_t> buf(data, data + data_size);
std::unique_ptr<BoxReader> reader;
ParseResult result =
BoxReader::ReadTopLevelBox(&buf[0], buf.size(), &media_log_, &reader);
EXPECT_EQ(result, ParseResult::kOk);
EXPECT_TRUE(reader);
EXPECT_EQ(fourCC, static_cast<uint32_t>(reader->type()));
EXPECT_EQ(reader->box_size(), data_size);
}
template <typename ChildType>
void TestParsing32bitOverflow(const uint8_t* buffer,
size_t size,
const std::string& overflow_error) {
// Wrap whatever we're passed in a dummy EMSG so we can satisfy requirements
// for ReadTopLevelBox and to kick off parsing.
std::vector<uint8_t> buffer_wrapper = {
0x00, 0x00, 0x00, 0x00, // dummy size
'e', 'm', 's', 'g', // fourcc
};
buffer_wrapper.insert(buffer_wrapper.end(), buffer, buffer + size);
// Basic check of the nested buffer size. If box_size > buffer size the test
// will exit early (waiting for more bytes to be appended).
ASSERT_TRUE(base::IsValueInRangeForNumericType<uint8_t>(size));
ASSERT_LE(buffer[3], size);
// Update the size (keep it simple).
ASSERT_TRUE(
base::IsValueInRangeForNumericType<uint8_t>(buffer_wrapper.size()));
buffer_wrapper[3] = buffer_wrapper.size();
std::unique_ptr<BoxReader> reader;
ParseResult result = BoxReader::ReadTopLevelBox(
&buffer_wrapper[0], buffer_wrapper.size(), &media_log_, &reader);
EXPECT_EQ(result, ParseResult::kOk);
EXPECT_TRUE(reader);
EXPECT_EQ(FOURCC_EMSG, reader->type());
// Overflow is only triggered/caught on 32-bit systems. 64-bit systems will
// instead fail parsing because tests are written such that |buffer| never
// contains enough bytes for parsing to succeed.
#if defined(ARCH_CPU_32_BITS)
const int kOverflowLogCount = 1;
#else
const int kOverflowLogCount = 0;
#endif
if (!overflow_error.empty())
EXPECT_MEDIA_LOG(HasSubstr(overflow_error)).Times(kOverflowLogCount);
std::vector<ChildType> children;
EXPECT_FALSE(reader->ReadAllChildrenAndCheckFourCC(&children));
}
StrictMock<MockMediaLog> media_log_;
};
TEST_F(BoxReaderTest, ExpectedOperationTest) {
std::vector<uint8_t> buf = GetBuf();
std::unique_ptr<BoxReader> reader;
ParseResult result =
BoxReader::ReadTopLevelBox(&buf[0], buf.size(), &media_log_, &reader);
EXPECT_EQ(result, ParseResult::kOk);
EXPECT_TRUE(reader);
SkipBox box;
EXPECT_TRUE(box.Parse(reader.get()));
EXPECT_EQ(0x01, reader->version());
EXPECT_EQ(0x020304u, reader->flags());
EXPECT_EQ(0x05, box.a);
EXPECT_EQ(0x06, box.b);
EXPECT_EQ(0x0708, box.c);
EXPECT_EQ(static_cast<int32_t>(0xf90a0b0c), box.d);
EXPECT_EQ(static_cast<int32_t>(0xfd0e0f10), box.e);
EXPECT_EQ(2u, box.kids.size());
EXPECT_EQ(0xdeadbeef, box.kids[0].val);
EXPECT_EQ(0xfacecafe, box.kids[1].val);
// Accounting for the extra byte outside of the box above
EXPECT_EQ(buf.size(), static_cast<uint64_t>(reader->box_size() + 1));
}
TEST_F(BoxReaderTest, OuterTooShortTest) {
std::vector<uint8_t> buf = GetBuf();
// Create a soft failure by truncating the outer box.
std::unique_ptr<BoxReader> r;
ParseResult result =
BoxReader::ReadTopLevelBox(&buf[0], buf.size() - 2, &media_log_, &r);
EXPECT_EQ(result, ParseResult::kNeedMoreData);
EXPECT_FALSE(r);
}
TEST_F(BoxReaderTest, InnerTooLongTest) {
std::vector<uint8_t> buf = GetBuf();
// Make an inner box too big for its outer box.
buf[25] = 1;
std::unique_ptr<BoxReader> reader;
ParseResult result =
BoxReader::ReadTopLevelBox(&buf[0], buf.size(), &media_log_, &reader);
EXPECT_EQ(result, ParseResult::kOk);
SkipBox box;
EXPECT_FALSE(box.Parse(reader.get()));
}
TEST_F(BoxReaderTest, WrongFourCCTest) {
std::vector<uint8_t> buf = GetBuf();
// Set an unrecognized top-level FourCC.
buf[4] = 0x44;
buf[5] = 0x41;
buf[6] = 0x4c;
buf[7] = 0x45;
// Also, tests that the offending FourCC is emitted only in a debug media log.
EXPECT_MEDIA_LOG(
AllOf(HasSubstr("error"),
HasSubstr("Invalid top-level ISO BMFF box type DALE")));
std::unique_ptr<BoxReader> reader;
ParseResult result =
BoxReader::ReadTopLevelBox(&buf[0], buf.size(), &media_log_, &reader);
EXPECT_FALSE(reader);
EXPECT_EQ(result, ParseResult::kError);
}
TEST_F(BoxReaderTest, ScanChildrenTest) {
std::vector<uint8_t> buf = GetBuf();
std::unique_ptr<BoxReader> reader;
ParseResult result =
BoxReader::ReadTopLevelBox(&buf[0], buf.size(), &media_log_, &reader);
EXPECT_EQ(result, ParseResult::kOk);
EXPECT_TRUE(reader->SkipBytes(16) && reader->ScanChildren());
FreeBox free;
EXPECT_TRUE(reader->ReadChild(&free));
EXPECT_FALSE(reader->ReadChild(&free));
EXPECT_TRUE(reader->MaybeReadChild(&free));
std::vector<PsshBox> kids;
EXPECT_TRUE(reader->ReadChildren(&kids));
EXPECT_EQ(2u, kids.size());
kids.clear();
EXPECT_FALSE(reader->ReadChildren(&kids));
EXPECT_TRUE(reader->MaybeReadChildren(&kids));
}
TEST_F(BoxReaderTest, ReadAllChildrenTest) {
std::vector<uint8_t> buf = GetBuf();
// Modify buffer to exclude its last 'free' box
buf[3] = 0x38;
std::unique_ptr<BoxReader> reader;
ParseResult result =
BoxReader::ReadTopLevelBox(&buf[0], buf.size(), &media_log_, &reader);
EXPECT_EQ(result, ParseResult::kOk);
std::vector<PsshBox> kids;
EXPECT_TRUE(reader->SkipBytes(16) && reader->ReadAllChildren(&kids));
EXPECT_EQ(2u, kids.size());
EXPECT_EQ(kids[0].val, 0xdeadbeef); // Ensure order is preserved
}
TEST_F(BoxReaderTest, SkippingBloc) {
static const uint8_t kData[] = {0x00, 0x00, 0x00, 0x09, 'b',
'l', 'o', 'c', 0x00};
TestTopLevelBox(kData, sizeof(kData), FOURCC_BLOC);
}
TEST_F(BoxReaderTest, SkippingEmsg) {
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x24, 'e', 'm', 's', 'g',
0x00, // version = 0
0x00, 0x00, 0x00, // flags = 0
0x61, 0x00, // scheme_id_uri = "a"
0x61, 0x00, // value = "a"
0x00, 0x00, 0x00, 0x01, // timescale = 1
0x00, 0x00, 0x00, 0x02, // presentation_time_delta = 2
0x00, 0x00, 0x00, 0x03, // event_duration = 3
0x00, 0x00, 0x00, 0x04, // id = 4
0x05, 0x06, 0x07, 0x08, // message_data[4] = 0x05060708
};
TestTopLevelBox(kData, sizeof(kData), FOURCC_EMSG);
}
TEST_F(BoxReaderTest, SkippingUuid) {
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x19, 'u', 'u', 'i', 'd',
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, // usertype
0x00,
};
TestTopLevelBox(kData, sizeof(kData), FOURCC_UUID);
}
TEST_F(BoxReaderTest, NestedBoxWithHugeSize) {
// This data is not a valid 'emsg' box. It is just used as a top-level box
// as ReadTopLevelBox() has a restricted set of boxes it allows. |kData|
// contains all the bytes as specified by the 'emsg' header size.
// The nested box ('junk') has a large size that was chosen to catch
// integer overflows. The nested box should not specify more than the
// number of remaining bytes in the enclosing box.
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x24, 'e', 'm', 's', 'g', // outer box
0x7f, 0xff, 0xff, 0xff, 'j', 'u', 'n', 'k', // nested box
0x00, 0x01, 0x00, 0xff, 0xff, 0x00, 0x3b, 0x03, // random data for rest
0x00, 0x01, 0x00, 0x03, 0x00, 0x03, 0x00, 0x04, 0x05, 0x06, 0x07, 0x08};
std::unique_ptr<BoxReader> reader;
ParseResult result =
BoxReader::ReadTopLevelBox(kData, sizeof(kData), &media_log_, &reader);
EXPECT_EQ(result, ParseResult::kOk);
EXPECT_TRUE(reader);
EXPECT_EQ(FOURCC_EMSG, reader->type());
EXPECT_FALSE(reader->ScanChildren());
}
TEST_F(BoxReaderTest, ScanChildrenWithInvalidChild) {
// This data is not a valid 'emsg' box. It is just used as a top-level box
// as ReadTopLevelBox() has a restricted set of boxes it allows.
// The nested 'elst' box is used as it includes a count of EditListEntry's.
// The sample specifies a large number of EditListEntry's, but only 1 is
// actually included in the box. This test verifies that the code checks
// properly that the buffer contains the specified number of EditListEntry's
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x2c, 'e', 'm', 's', 'g', // outer box
0x00, 0x00, 0x00, 0x24, 'e', 'l', 's', 't', // nested box
0x01, 0x00, 0x00, 0x00, // version = 1, flags = 0
0x00, 0x00, 0x00, 0x0a, // count = 10, but only 1 actually included
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
std::unique_ptr<BoxReader> reader;
ParseResult result =
BoxReader::ReadTopLevelBox(kData, sizeof(kData), &media_log_, &reader);
EXPECT_EQ(result, ParseResult::kOk);
EXPECT_TRUE(reader);
EXPECT_EQ(FOURCC_EMSG, reader->type());
EXPECT_TRUE(reader->ScanChildren());
// 'elst' specifies lots of EditListEntry's but only includes 1. Thus
// parsing it should fail.
EditList child;
EXPECT_FALSE(reader->ReadChild(&child));
}
TEST_F(BoxReaderTest, ReadAllChildrenWithChildLargerThanParent) {
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x10, 's', 'k', 'i', 'p', // outer box
0x00, 0x00, 0x00, 0x10, 'p', 's', 's', 'h', // nested box
};
std::unique_ptr<BoxReader> reader;
ParseResult result =
BoxReader::ReadTopLevelBox(kData, sizeof(kData), &media_log_, &reader);
EXPECT_EQ(result, ParseResult::kOk);
EXPECT_TRUE(reader);
EXPECT_EQ(FOURCC_SKIP, reader->type());
std::vector<PsshBox> tmp;
EXPECT_FALSE(reader->ReadAllChildren(&tmp));
}
TEST_F(BoxReaderTest, TrunSampleCount32bitOverflow) {
// This 'trun' box specifies an unusually high sample count, though only one
// sample is included in the bytes below. The values for "sample_count" and
// "flags" are chosen such that the needed number of bytes will overflow 32
// bits to yield a very small number (4), potentially passing the
// internal check for HasBytes(). http://crbug.com/679640
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x18, 't', 'r', 'u', 'n', // header
0x00, 0x00, // version = 0
0x03, 0x00, // flags = 2 fields present (sample duration and sample size)
0x80, 0x00, 0x00, 0x02, // sample count = 2147483650
0x00, 0x00, 0x00, 0x00, // only one sample present
0x00, 0x00, 0x00, 0x00};
// Verify we catch the overflow to avoid OOB reads/writes.
TestParsing32bitOverflow<TrackFragmentRun>(
kData, sizeof(kData),
"Extreme TRUN sample count exceeds implementation limit.");
}
TEST_F(BoxReaderTest, SaioCount32bitOverflow) {
// This 'saio' box specifies an unusually high number of offset counts, though
// only one offset is included in the bytes below. The values for "count" and
// "version" are chosen such that the needed number of bytes will overflow 32
// bits to yield a very small number (4), potentially passing the internal
// check for HasBytes(). http://crbug.com/679641
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x14, 's', 'a', 'i', 'o', // header
0x00, 0x00, // version = 0 (4 bytes per offset entry)
0x00, 0x00, // flags = 0
0x40, 0x00, 0x00, 0x01, // offsets count = 1073741825
0x00, 0x00, 0x00, 0x00, // single offset entry
};
// Verify we catch the overflow to avoid OOB reads/writes.
TestParsing32bitOverflow<SampleAuxiliaryInformationOffset>(
kData, sizeof(kData), "Extreme SAIO count exceeds implementation limit.");
}
TEST_F(BoxReaderTest, ElstCount32bitOverflow) {
// This 'elst' box specifies an unusually high number of edit counts, though
// only one edit is included in the bytes below. The values for "count" and
// "version" are chosen such that the needed number of bytes will overflow 32
// bits to yield a very small number (12), potentially passing the internal
// check for HasBytes(). http://crbug.com/679645
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x1c, 'e', 'l', 's', 't', // header
0x00, 0x00, // version = 0 (12 bytes per edit entry)
0x00, 0x00, // flags = 0
0x80, 0x00, 0x00, 0x01, // edits count = 2147483649
0x00, 0x00, 0x00, 0x00, // single edit entry
0x00, 0x00, 0x00, 0x00, // ...
0x00, 0x00, 0x00, 0x00,
};
// Verify we catch the overflow to avoid OOB reads/writes.
TestParsing32bitOverflow<EditList>(
kData, sizeof(kData), "Extreme ELST count exceeds implementation limit.");
}
TEST_F(BoxReaderTest, SbgpCount32bitOverflow) {
// This 'sbgp' box specifies an unusually high count of entries, though only
// one partial entry is included in the bytes below. The value for "count" is
// chosen such that we could overflow attempting to allocate the vector for
// parsed entries. http://crbug.com/679646
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x1c, 's', 'b', 'g', 'p', // header
0x00, 0x00, 0x00, 0x00, // version = 0, flags = 0
's', 'e', 'i', 'g', // required grouping "type"
0xff, 0xff, 0xff, 0xff, // count = 4294967295
0x00, 0x00, 0x00, 0x00, // partial entry
0x00, 0x00, 0x00, 0x00,
};
// Verify we catch the overflow to avoid OOB reads/writes.
TestParsing32bitOverflow<SampleToGroup>(
kData, sizeof(kData), "Extreme SBGP count exceeds implementation limit.");
}
TEST_F(BoxReaderTest, SgpdCount32bitOverflow) {
// This 'sgpd' box specifies an unusually high count of entries, though only
// one partial entry is included in the bytes below. The value for "count" is
// chosen such that we could overflow attempting to allocate the vector for
// parsed entries. http://crbug.com/679647
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x1c, 's', 'g', 'p', 'd', // header
0x00, 0x00, 0x00, 0x00, // version = 0, flags = 0
's', 'e', 'i', 'g', // required grouping "type"
0xff, 0xff, 0xff, 0xff, // count = 4294967295
0x00, 0x00, 0x00, 0x00, // partial entry
0x00, 0x00, 0x00, 0x00,
};
// Verify we catch the overflow to avoid OOB reads/writes.
TestParsing32bitOverflow<SampleGroupDescription>(
kData, sizeof(kData), "Extreme SGPD count exceeds implementation limit.");
}
TEST_F(BoxReaderTest, OutsideOfBoxRead) {
static const uint8_t kData[] = {
0x00, 0x00, 0x00, 0x0c, 'f', 'r', 'e', 'e', // header
0x01, 0x02, 0x03, 0x04, // box contents
0x05, 0x06, 0x07, 0x08, // buffer padding
};
std::unique_ptr<BoxReader> reader;
ParseResult result =
BoxReader::ReadTopLevelBox(kData, sizeof(kData), &media_log_, &reader);
EXPECT_EQ(result, ParseResult::kOk);
EXPECT_TRUE(reader);
uint32_t value;
EXPECT_TRUE(reader->Read4(&value));
EXPECT_EQ(value, 0x01020304u);
EXPECT_FALSE(reader->Read4(&value));
}
#if BUILDFLAG(USE_PROPRIETARY_CODECS)
TEST_F(BoxReaderTest, AVCDecoderConfigurationRecordTakenFromMp4) {
std::vector<uint8_t> test_data{
0x1, // configurationVersion = 1
0x64, // AVCProfileIndication = 100
0x0, // profile_compatibility = 0
0xc, // AVCLevelIndication = 10
0xff, // lengthSizeMinusOne = 3
0xe1, // numOfSequenceParameterSets = 1
0x0, 0x19, // sequenceParameterSetLength = 25
// sequenceParameterSet
0x67, 0x64, 0x0, 0xc, 0xac, 0xd9, 0x41, 0x41, 0xfb, 0x1, 0x10, 0x0, 0x0,
0x3, 0x0, 0x10, 0x0, 0x0, 0x3, 0x1, 0x40, 0xf1, 0x42, 0x99, 0x60,
0x1, // numOfPictureParameterSets
0x0, 0x6, // pictureParameterSetLength = 6
0x68, 0xeb, 0xe3, 0xcb, 0x22, 0xc0,
0xfd, // chroma_format = 1
0xf8, // bit_depth_luma_minus8 = 0
0xf8, // bit_depth_chroma_minus8 = 0
0x0, // numOfSequanceParameterSetExt = 0
};
AVCDecoderConfigurationRecord record;
EXPECT_TRUE(record.Parse(test_data.data(), test_data.size()));
EXPECT_EQ(record.version, 1);
EXPECT_EQ(record.profile_indication, 0x64);
EXPECT_EQ(record.profile_compatibility, 0);
EXPECT_EQ(record.avc_level, 0xc);
EXPECT_EQ(record.length_size, 4);
EXPECT_EQ(record.sps_list.size(), 1ull);
EXPECT_EQ(record.sps_list[0].size(), 25ull);
EXPECT_EQ(record.pps_list.size(), 1ull);
EXPECT_EQ(record.pps_list[0].size(), 6ull);
EXPECT_EQ(record.chroma_format, 1);
EXPECT_EQ(record.bit_depth_luma_minus8, 0);
EXPECT_EQ(record.bit_depth_chroma_minus8, 0);
EXPECT_EQ(record.sps_ext_list.size(), 0ull);
std::vector<uint8_t> output;
EXPECT_TRUE(record.Serialize(output));
EXPECT_EQ(output.size(), test_data.size());
ASSERT_THAT(output, testing::ElementsAreArray(test_data));
}
TEST_F(BoxReaderTest, AVCDecoderConfigurationRecordInvalidREXT) {
std::vector<uint8_t> test_data{
0x1, // configurationVersion = 1
0x64, // AVCProfileIndication = 100
0x0, // profile_compatibility = 0
0xc, // AVCLevelIndication = 10
0xff, // lengthSizeMinusOne = 3
0xe1, // numOfSequenceParameterSets = 1
0x0, 0x19, // sequenceParameterSetLength = 25
// sequenceParameterSet
0x67, 0x64, 0x0, 0xc, 0xac, 0xd9, 0x41, 0x41, 0xfb, 0x1, 0x10, 0x0, 0x0,
0x3, 0x0, 0x10, 0x0, 0x0, 0x3, 0x1, 0x40, 0xf1, 0x42, 0x99, 0x60,
0x1, // numOfPictureParameterSets
0x0, 0x6, // pictureParameterSetLength = 6
0x68, 0xeb, 0xe3, 0xcb, 0x22, 0xc0,
0xfe, // chroma_format = 2
0xfc, // bit_depth_luma_minus8 = 4
0xfe, // bit_depth_chroma_minus8 = 6
0x0, // numOfSequanceParameterSetExt = 0
};
AVCDecoderConfigurationRecord record;
EXPECT_TRUE(record.Parse(test_data.data(), test_data.size()));
// Default values should be used.
EXPECT_EQ(record.chroma_format, 0);
EXPECT_EQ(record.bit_depth_luma_minus8, 0);
EXPECT_EQ(record.bit_depth_chroma_minus8, 0);
EXPECT_EQ(record.sps_ext_list.size(), 0ull);
}
TEST_F(BoxReaderTest, AVCDecoderConfigurationRecordTakenFromStream) {
std::vector<uint8_t> test_data{
0x01, 0x4D, 0x00, 0x15, 0xff, 0xe1, 0x00, 0x2F, 0x67, 0x4D, 0x40,
0x15, 0x96, 0x52, 0x02, 0x83, 0xF6, 0x02, 0xA1, 0x00, 0x00, 0x03,
0x00, 0x01, 0x00, 0x00, 0x03, 0x00, 0x28, 0xE0, 0x60, 0x03, 0x0D,
0x40, 0x00, 0x49, 0x3E, 0x7F, 0x18, 0xE3, 0x03, 0x00, 0x18, 0x6A,
0x00, 0x02, 0x49, 0xF3, 0xF8, 0xC7, 0x0E, 0xD0, 0xB1, 0x68, 0x90,
0x01, 0x00, 0x04, 0x68, 0xEB, 0x73, 0x52};
AVCDecoderConfigurationRecord record;
EXPECT_TRUE(record.Parse(test_data.data(), test_data.size()));
std::vector<uint8_t> output;
EXPECT_TRUE(record.Serialize(output));
ASSERT_THAT(output, testing::ElementsAreArray(test_data));
}
#endif // BUILDFLAG(USE_PROPRIETARY_CODECS)
} // namespace mp4
} // namespace media
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