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// Copyright 2014 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 <vector>
#include "base/bind.h"
#include "base/macros.h"
#include "base/time/time.h"
#include "media/base/media_util.h"
#include "media/base/stream_parser_buffer.h"
#include "media/formats/mp2t/es_parser_mpeg1audio.h"
#include "media/formats/mp2t/es_parser_test_base.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace media {
class AudioDecoderConfig;
namespace mp2t {
class EsParserMpeg1AudioTest : public EsParserTestBase,
public testing::Test {
public:
EsParserMpeg1AudioTest();
protected:
bool Process(const std::vector<Packet>& pes_packets, bool force_timing);
private:
NullMediaLog media_log_;
DISALLOW_COPY_AND_ASSIGN(EsParserMpeg1AudioTest);
};
EsParserMpeg1AudioTest::EsParserMpeg1AudioTest() {
}
bool EsParserMpeg1AudioTest::Process(
const std::vector<Packet>& pes_packets,
bool force_timing) {
EsParserMpeg1Audio es_parser(
base::BindRepeating(&EsParserMpeg1AudioTest::NewAudioConfig,
base::Unretained(this)),
base::BindRepeating(&EsParserMpeg1AudioTest::EmitBuffer,
base::Unretained(this)),
&media_log_);
return ProcessPesPackets(&es_parser, pes_packets, force_timing);
}
TEST_F(EsParserMpeg1AudioTest, SinglePts) {
LoadStream("sfx.mp3");
std::vector<Packet> pes_packets = GenerateFixedSizePesPacket(512);
pes_packets.front().pts = base::Seconds(10);
// Note: there is no parsing of metadata as part of Mpeg2 TS,
// so the tag starting at 0x80d with 0x54 0x41 0x47 (ascii for "TAG")
// is not a valid Mpeg1 audio frame header. This makes the previous frame
// invalid since there is no start code following the previous frame.
// So instead of the 13 Mpeg1 audio frames, only 12 are considered valid.
// Offset of frames in the file:
// {0x20, 0x1c1, 0x277, 0x2f9, 0x3fd, 0x47f, 0x501, 0x583,
// 0x605, 0x687, 0x73d, 0x7a5, 0x80d}
// TODO(damienv): find a file that would be more relevant for Mpeg1 audio
// as part of Mpeg2 TS.
EXPECT_TRUE(Process(pes_packets, false));
EXPECT_EQ(1u, config_count_);
EXPECT_EQ(12u, buffer_count_);
}
TEST_F(EsParserMpeg1AudioTest, NoTimingInfo) {
LoadStream("sfx.mp3");
std::vector<Packet> pes_packets = GenerateFixedSizePesPacket(512);
// Process should succeed even without timing info, we should just skip the
// audio frames without timing info, but still should be able to parse and
// play the stream after that.
EXPECT_TRUE(Process(pes_packets, false));
EXPECT_EQ(1u, config_count_);
EXPECT_EQ(0u, buffer_count_);
}
} // namespace mp2t
} // namespace media
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