mp4_stream_parser_unittest.cc revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7 
1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include <algorithm>
6#include <string>
7
8#include "base/bind.h"
9#include "base/bind_helpers.h"
10#include "base/logging.h"
11#include "base/memory/ref_counted.h"
12#include "base/time/time.h"
13#include "media/base/audio_decoder_config.h"
14#include "media/base/decoder_buffer.h"
15#include "media/base/stream_parser_buffer.h"
16#include "media/base/test_data_util.h"
17#include "media/base/text_track_config.h"
18#include "media/base/video_decoder_config.h"
19#include "media/formats/mp4/es_descriptor.h"
20#include "media/formats/mp4/mp4_stream_parser.h"
21#include "testing/gtest/include/gtest/gtest.h"
22
23using base::TimeDelta;
24
25namespace media {
26namespace mp4 {
27
28// TODO(xhwang): Figure out the init data type appropriately once it's spec'ed.
29static const char kMp4InitDataType[] = "video/mp4";
30
31class MP4StreamParserTest : public testing::Test {
32 public:
33  MP4StreamParserTest()
34      : configs_received_(false) {
35    std::set<int> audio_object_types;
36    audio_object_types.insert(kISO_14496_3);
37    parser_.reset(new MP4StreamParser(audio_object_types, false));
38  }
39
40 protected:
41  scoped_ptr<MP4StreamParser> parser_;
42  bool configs_received_;
43
44  bool AppendData(const uint8* data, size_t length) {
45    return parser_->Parse(data, length);
46  }
47
48  bool AppendDataInPieces(const uint8* data, size_t length, size_t piece_size) {
49    const uint8* start = data;
50    const uint8* end = data + length;
51    while (start < end) {
52      size_t append_size = std::min(piece_size,
53                                    static_cast<size_t>(end - start));
54      if (!AppendData(start, append_size))
55        return false;
56      start += append_size;
57    }
58    return true;
59  }
60
61  void InitF(bool init_ok, base::TimeDelta duration) {
62    DVLOG(1) << "InitF: ok=" << init_ok
63             << ", dur=" << duration.InMilliseconds();
64  }
65
66  bool NewConfigF(const AudioDecoderConfig& ac,
67                  const VideoDecoderConfig& vc,
68                  const StreamParser::TextTrackConfigMap& tc) {
69    DVLOG(1) << "NewConfigF: audio=" << ac.IsValidConfig()
70             << ", video=" << vc.IsValidConfig();
71    configs_received_ = true;
72    return true;
73  }
74
75
76  void DumpBuffers(const std::string& label,
77                   const StreamParser::BufferQueue& buffers) {
78    DVLOG(2) << "DumpBuffers: " << label << " size " << buffers.size();
79    for (StreamParser::BufferQueue::const_iterator buf = buffers.begin();
80         buf != buffers.end(); buf++) {
81      DVLOG(3) << "  n=" << buf - buffers.begin()
82               << ", size=" << (*buf)->data_size()
83               << ", dur=" << (*buf)->duration().InMilliseconds();
84    }
85  }
86
87  bool NewBuffersF(const StreamParser::BufferQueue& audio_buffers,
88                   const StreamParser::BufferQueue& video_buffers,
89                   const StreamParser::TextBufferQueueMap& text_map) {
90    DumpBuffers("audio_buffers", audio_buffers);
91    DumpBuffers("video_buffers", video_buffers);
92
93    // TODO(wolenetz/acolwell): Add text track support to more MSE parsers. See
94    // http://crbug.com/336926.
95    if (!text_map.empty())
96      return false;
97
98    return true;
99  }
100
101  void KeyNeededF(const std::string& type,
102                  const std::vector<uint8>& init_data) {
103    DVLOG(1) << "KeyNeededF: " << init_data.size();
104    EXPECT_EQ(kMp4InitDataType, type);
105    EXPECT_FALSE(init_data.empty());
106  }
107
108  void NewSegmentF() {
109    DVLOG(1) << "NewSegmentF";
110  }
111
112  void EndOfSegmentF() {
113    DVLOG(1) << "EndOfSegmentF()";
114  }
115
116  void InitializeParser() {
117    parser_->Init(
118        base::Bind(&MP4StreamParserTest::InitF, base::Unretained(this)),
119        base::Bind(&MP4StreamParserTest::NewConfigF, base::Unretained(this)),
120        base::Bind(&MP4StreamParserTest::NewBuffersF, base::Unretained(this)),
121        true,
122        base::Bind(&MP4StreamParserTest::KeyNeededF, base::Unretained(this)),
123        base::Bind(&MP4StreamParserTest::NewSegmentF, base::Unretained(this)),
124        base::Bind(&MP4StreamParserTest::EndOfSegmentF,
125                   base::Unretained(this)),
126        LogCB());
127  }
128
129  bool ParseMP4File(const std::string& filename, int append_bytes) {
130    InitializeParser();
131
132    scoped_refptr<DecoderBuffer> buffer = ReadTestDataFile(filename);
133    EXPECT_TRUE(AppendDataInPieces(buffer->data(),
134                                   buffer->data_size(),
135                                   append_bytes));
136    return true;
137  }
138};
139
140TEST_F(MP4StreamParserTest, UnalignedAppend) {
141  // Test small, non-segment-aligned appends (small enough to exercise
142  // incremental append system)
143  ParseMP4File("bear-1280x720-av_frag.mp4", 512);
144}
145
146TEST_F(MP4StreamParserTest, BytewiseAppend) {
147  // Ensure no incremental errors occur when parsing
148  ParseMP4File("bear-1280x720-av_frag.mp4", 1);
149}
150
151TEST_F(MP4StreamParserTest, MultiFragmentAppend) {
152  // Large size ensures multiple fragments are appended in one call (size is
153  // larger than this particular test file)
154  ParseMP4File("bear-1280x720-av_frag.mp4", 768432);
155}
156
157TEST_F(MP4StreamParserTest, Flush) {
158  // Flush while reading sample data, then start a new stream.
159  InitializeParser();
160
161  scoped_refptr<DecoderBuffer> buffer =
162      ReadTestDataFile("bear-1280x720-av_frag.mp4");
163  EXPECT_TRUE(AppendDataInPieces(buffer->data(), 65536, 512));
164  parser_->Flush();
165  EXPECT_TRUE(AppendDataInPieces(buffer->data(),
166                                 buffer->data_size(),
167                                 512));
168}
169
170TEST_F(MP4StreamParserTest, Reinitialization) {
171  InitializeParser();
172
173  scoped_refptr<DecoderBuffer> buffer =
174      ReadTestDataFile("bear-1280x720-av_frag.mp4");
175  EXPECT_TRUE(AppendDataInPieces(buffer->data(),
176                                 buffer->data_size(),
177                                 512));
178  EXPECT_TRUE(AppendDataInPieces(buffer->data(),
179                                 buffer->data_size(),
180                                 512));
181}
182
183TEST_F(MP4StreamParserTest, MPEG2_AAC_LC) {
184  std::set<int> audio_object_types;
185  audio_object_types.insert(kISO_13818_7_AAC_LC);
186  parser_.reset(new MP4StreamParser(audio_object_types, false));
187  ParseMP4File("bear-mpeg2-aac-only_frag.mp4", 512);
188}
189
190// Test that a moov box is not always required after Flush() is called.
191TEST_F(MP4StreamParserTest, NoMoovAfterFlush) {
192  InitializeParser();
193
194  scoped_refptr<DecoderBuffer> buffer =
195      ReadTestDataFile("bear-1280x720-av_frag.mp4");
196  EXPECT_TRUE(AppendDataInPieces(buffer->data(),
197                                 buffer->data_size(),
198                                 512));
199  parser_->Flush();
200
201  const int kFirstMoofOffset = 1307;
202  EXPECT_TRUE(AppendDataInPieces(buffer->data() + kFirstMoofOffset,
203                                 buffer->data_size() - kFirstMoofOffset,
204                                 512));
205}
206
207// TODO(strobe): Create and test media which uses CENC auxiliary info stored
208// inside a private box
209
210}  // namespace mp4
211}  // namespace media
212