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// 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 <algorithm>
#include <string>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "base/time/time.h"
#include "media/base/audio_decoder_config.h"
#include "media/base/decoder_buffer.h"
#include "media/base/stream_parser_buffer.h"
#include "media/base/test_data_util.h"
#include "media/base/text_track_config.h"
#include "media/base/video_decoder_config.h"
#include "media/mp4/es_descriptor.h"
#include "media/mp4/mp4_stream_parser.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::TimeDelta;
namespace media {
namespace mp4 {
// TODO(xhwang): Figure out the init data type appropriately once it's spec'ed.
static const char kMp4InitDataType[] = "video/mp4";
class MP4StreamParserTest : public testing::Test {
public:
MP4StreamParserTest()
: configs_received_(false) {
std::set<int> audio_object_types;
audio_object_types.insert(kISO_14496_3);
parser_.reset(new MP4StreamParser(audio_object_types, false));
}
protected:
scoped_ptr<MP4StreamParser> parser_;
bool configs_received_;
bool AppendData(const uint8* data, size_t length) {
return parser_->Parse(data, length);
}
bool AppendDataInPieces(const uint8* data, size_t length, size_t piece_size) {
const uint8* start = data;
const uint8* end = data + length;
while (start < end) {
size_t append_size = std::min(piece_size,
static_cast<size_t>(end - start));
if (!AppendData(start, append_size))
return false;
start += append_size;
}
return true;
}
void InitF(bool init_ok, base::TimeDelta duration) {
DVLOG(1) << "InitF: ok=" << init_ok
<< ", dur=" << duration.InMilliseconds();
}
bool NewConfigF(const AudioDecoderConfig& ac,
const VideoDecoderConfig& vc,
const StreamParser::TextTrackConfigMap& tc) {
DVLOG(1) << "NewConfigF: audio=" << ac.IsValidConfig()
<< ", video=" << vc.IsValidConfig();
configs_received_ = true;
return true;
}
void DumpBuffers(const std::string& label,
const StreamParser::BufferQueue& buffers) {
DVLOG(2) << "DumpBuffers: " << label << " size " << buffers.size();
for (StreamParser::BufferQueue::const_iterator buf = buffers.begin();
buf != buffers.end(); buf++) {
DVLOG(3) << " n=" << buf - buffers.begin()
<< ", size=" << (*buf)->data_size()
<< ", dur=" << (*buf)->duration().InMilliseconds();
}
}
bool NewBuffersF(const StreamParser::BufferQueue& audio_buffers,
const StreamParser::BufferQueue& video_buffers) {
DumpBuffers("audio_buffers", audio_buffers);
DumpBuffers("video_buffers", video_buffers);
return true;
}
void KeyNeededF(const std::string& type,
const std::vector<uint8>& init_data) {
DVLOG(1) << "KeyNeededF: " << init_data.size();
EXPECT_EQ(kMp4InitDataType, type);
EXPECT_FALSE(init_data.empty());
}
void NewSegmentF() {
DVLOG(1) << "NewSegmentF";
}
void EndOfSegmentF() {
DVLOG(1) << "EndOfSegmentF()";
}
void InitializeParser() {
parser_->Init(
base::Bind(&MP4StreamParserTest::InitF, base::Unretained(this)),
base::Bind(&MP4StreamParserTest::NewConfigF, base::Unretained(this)),
base::Bind(&MP4StreamParserTest::NewBuffersF, base::Unretained(this)),
StreamParser::NewTextBuffersCB(),
base::Bind(&MP4StreamParserTest::KeyNeededF, base::Unretained(this)),
base::Bind(&MP4StreamParserTest::NewSegmentF, base::Unretained(this)),
base::Bind(&MP4StreamParserTest::EndOfSegmentF,
base::Unretained(this)),
LogCB());
}
bool ParseMP4File(const std::string& filename, int append_bytes) {
InitializeParser();
scoped_refptr<DecoderBuffer> buffer = ReadTestDataFile(filename);
EXPECT_TRUE(AppendDataInPieces(buffer->data(),
buffer->data_size(),
append_bytes));
return true;
}
};
TEST_F(MP4StreamParserTest, UnalignedAppend) {
// Test small, non-segment-aligned appends (small enough to exercise
// incremental append system)
ParseMP4File("bear-1280x720-av_frag.mp4", 512);
}
TEST_F(MP4StreamParserTest, BytewiseAppend) {
// Ensure no incremental errors occur when parsing
ParseMP4File("bear-1280x720-av_frag.mp4", 1);
}
TEST_F(MP4StreamParserTest, MultiFragmentAppend) {
// Large size ensures multiple fragments are appended in one call (size is
// larger than this particular test file)
ParseMP4File("bear-1280x720-av_frag.mp4", 768432);
}
TEST_F(MP4StreamParserTest, Flush) {
// Flush while reading sample data, then start a new stream.
InitializeParser();
scoped_refptr<DecoderBuffer> buffer =
ReadTestDataFile("bear-1280x720-av_frag.mp4");
EXPECT_TRUE(AppendDataInPieces(buffer->data(), 65536, 512));
parser_->Flush();
EXPECT_TRUE(AppendDataInPieces(buffer->data(),
buffer->data_size(),
512));
}
TEST_F(MP4StreamParserTest, Reinitialization) {
InitializeParser();
scoped_refptr<DecoderBuffer> buffer =
ReadTestDataFile("bear-1280x720-av_frag.mp4");
EXPECT_TRUE(AppendDataInPieces(buffer->data(),
buffer->data_size(),
512));
EXPECT_TRUE(AppendDataInPieces(buffer->data(),
buffer->data_size(),
512));
}
TEST_F(MP4StreamParserTest, MPEG2_AAC_LC) {
std::set<int> audio_object_types;
audio_object_types.insert(kISO_13818_7_AAC_LC);
parser_.reset(new MP4StreamParser(audio_object_types, false));
ParseMP4File("bear-mpeg2-aac-only_frag.mp4", 512);
}
// Test that a moov box is not always required after Flush() is called.
TEST_F(MP4StreamParserTest, NoMoovAfterFlush) {
InitializeParser();
scoped_refptr<DecoderBuffer> buffer =
ReadTestDataFile("bear-1280x720-av_frag.mp4");
EXPECT_TRUE(AppendDataInPieces(buffer->data(),
buffer->data_size(),
512));
parser_->Flush();
const int kFirstMoofOffset = 1307;
EXPECT_TRUE(AppendDataInPieces(buffer->data() + kFirstMoofOffset,
buffer->data_size() - kFirstMoofOffset,
512));
}
// TODO(strobe): Create and test media which uses CENC auxiliary info stored
// inside a private box
} // namespace mp4
} // namespace media
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