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// Copyright 2013 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 <stddef.h>
#include <stdint.h>
#include "base/at_exit.h"
#include "base/bind.h"
#include "base/macros.h"
#include "base/message_loop/message_loop.h"
#include "base/strings/string_number_conversions.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "media/base/media.h"
#include "media/base/media_log.h"
#include "media/base/test_data_util.h"
#include "media/base/timestamp_constants.h"
#include "media/filters/ffmpeg_demuxer.h"
#include "media/filters/file_data_source.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/perf/perf_test.h"
namespace media {
static const int kBenchmarkIterations = 100;
class DemuxerHostImpl : public media::DemuxerHost {
public:
DemuxerHostImpl() {}
~DemuxerHostImpl() override {}
// DemuxerHost implementation.
void OnBufferedTimeRangesChanged(
const Ranges<base::TimeDelta>& ranges) override {}
void SetDuration(base::TimeDelta duration) override {}
void OnDemuxerError(media::PipelineStatus error) override {}
void AddTextStream(media::DemuxerStream* text_stream,
const media::TextTrackConfig& config) override {}
void RemoveTextStream(media::DemuxerStream* text_stream) override {}
private:
DISALLOW_COPY_AND_ASSIGN(DemuxerHostImpl);
};
static void QuitLoopWithStatus(base::MessageLoop* message_loop,
media::PipelineStatus status) {
CHECK_EQ(status, media::PIPELINE_OK);
message_loop->PostTask(FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
}
static void OnEncryptedMediaInitData(EmeInitDataType init_data_type,
const std::vector<uint8_t>& init_data) {
VLOG(0) << "File is encrypted.";
}
typedef std::vector<media::DemuxerStream* > Streams;
// Simulates playback reading requirements by reading from each stream
// present in |demuxer| in as-close-to-monotonically-increasing timestamp order.
class StreamReader {
public:
StreamReader(media::Demuxer* demuxer, bool enable_bitstream_converter);
~StreamReader();
// Performs a single step read.
void Read();
// Returns true when all streams have reached end of stream.
bool IsDone();
int number_of_streams() { return static_cast<int>(streams_.size()); }
const Streams& streams() { return streams_; }
const std::vector<int>& counts() { return counts_; }
private:
void OnReadDone(base::MessageLoop* message_loop,
bool* end_of_stream,
base::TimeDelta* timestamp,
media::DemuxerStream::Status status,
const scoped_refptr<media::DecoderBuffer>& buffer);
int GetNextStreamIndexToRead();
Streams streams_;
std::vector<bool> end_of_stream_;
std::vector<base::TimeDelta> last_read_timestamp_;
std::vector<int> counts_;
DISALLOW_COPY_AND_ASSIGN(StreamReader);
};
StreamReader::StreamReader(media::Demuxer* demuxer,
bool enable_bitstream_converter) {
media::DemuxerStream* stream =
demuxer->GetStream(media::DemuxerStream::AUDIO);
if (stream) {
streams_.push_back(stream);
end_of_stream_.push_back(false);
last_read_timestamp_.push_back(media::kNoTimestamp());
counts_.push_back(0);
}
stream = demuxer->GetStream(media::DemuxerStream::VIDEO);
if (stream) {
streams_.push_back(stream);
end_of_stream_.push_back(false);
last_read_timestamp_.push_back(media::kNoTimestamp());
counts_.push_back(0);
if (enable_bitstream_converter)
stream->EnableBitstreamConverter();
}
}
StreamReader::~StreamReader() {}
void StreamReader::Read() {
int index = GetNextStreamIndexToRead();
bool end_of_stream = false;
base::TimeDelta timestamp;
streams_[index]->Read(base::Bind(
&StreamReader::OnReadDone, base::Unretained(this),
base::MessageLoop::current(), &end_of_stream, ×tamp));
base::MessageLoop::current()->Run();
CHECK(end_of_stream || timestamp != media::kNoTimestamp());
end_of_stream_[index] = end_of_stream;
last_read_timestamp_[index] = timestamp;
counts_[index]++;
}
bool StreamReader::IsDone() {
for (size_t i = 0; i < end_of_stream_.size(); ++i) {
if (!end_of_stream_[i])
return false;
}
return true;
}
void StreamReader::OnReadDone(
base::MessageLoop* message_loop,
bool* end_of_stream,
base::TimeDelta* timestamp,
media::DemuxerStream::Status status,
const scoped_refptr<media::DecoderBuffer>& buffer) {
CHECK_EQ(status, media::DemuxerStream::kOk);
CHECK(buffer.get());
*end_of_stream = buffer->end_of_stream();
*timestamp = *end_of_stream ? media::kNoTimestamp() : buffer->timestamp();
message_loop->PostTask(FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
}
int StreamReader::GetNextStreamIndexToRead() {
int index = -1;
for (int i = 0; i < number_of_streams(); ++i) {
// Ignore streams at EOS.
if (end_of_stream_[i])
continue;
// Use a stream if it hasn't been read from yet.
if (last_read_timestamp_[i] == media::kNoTimestamp())
return i;
if (index < 0 ||
last_read_timestamp_[i] < last_read_timestamp_[index]) {
index = i;
}
}
CHECK_GE(index, 0) << "Couldn't find a stream to read";
return index;
}
static void RunDemuxerBenchmark(const std::string& filename) {
base::FilePath file_path(GetTestDataFilePath(filename));
double total_time = 0.0;
for (int i = 0; i < kBenchmarkIterations; ++i) {
// Setup.
base::MessageLoop message_loop;
DemuxerHostImpl demuxer_host;
FileDataSource data_source;
ASSERT_TRUE(data_source.Initialize(file_path));
Demuxer::EncryptedMediaInitDataCB encrypted_media_init_data_cb =
base::Bind(&OnEncryptedMediaInitData);
FFmpegDemuxer demuxer(message_loop.task_runner(), &data_source,
encrypted_media_init_data_cb, new MediaLog());
demuxer.Initialize(&demuxer_host,
base::Bind(&QuitLoopWithStatus, &message_loop),
false);
message_loop.Run();
StreamReader stream_reader(&demuxer, false);
// Benchmark.
base::TimeTicks start = base::TimeTicks::Now();
while (!stream_reader.IsDone()) {
stream_reader.Read();
}
base::TimeTicks end = base::TimeTicks::Now();
total_time += (end - start).InSecondsF();
demuxer.Stop();
QuitLoopWithStatus(&message_loop, PIPELINE_OK);
message_loop.Run();
}
perf_test::PrintResult("demuxer_bench",
"",
filename,
kBenchmarkIterations / total_time,
"runs/s",
true);
}
#if defined(OS_WIN)
// http://crbug.com/399002
#define MAYBE_Demuxer DISABLED_Demuxer
#else
#define MAYBE_Demuxer Demuxer
#endif
TEST(DemuxerPerfTest, MAYBE_Demuxer) {
RunDemuxerBenchmark("bear.ogv");
RunDemuxerBenchmark("bear-640x360.webm");
RunDemuxerBenchmark("sfx_s16le.wav");
#if defined(USE_PROPRIETARY_CODECS)
RunDemuxerBenchmark("bear-1280x720.mp4");
RunDemuxerBenchmark("sfx.mp3");
#endif
#if defined(OS_CHROMEOS)
RunDemuxerBenchmark("bear.flac");
#endif
#if defined(USE_PROPRIETARY_CODECS) && defined(OS_CHROMEOS)
RunDemuxerBenchmark("bear.avi");
#endif
}
} // namespace media
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