src/media/formats/mp4/mp4_stream_parser_unittest.cc

   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
  23 using base::TimeDelta;
  24
  25 namespace media {
  26 namespace mp4 {
  27
  28 // TODO(xhwang): Figure out the init data type appropriately once it's spec'ed.
  29 static const char kMp4InitDataType[] = "video/mp4";
  30
  31 class 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, const StreamParser::InitParameters& params) {
  62     DVLOG(1) << "InitF: ok=" << init_ok
  63              << ", dur=" << params.duration.InMilliseconds()
  64              << ", autoTimestampOffset=" << params.auto_update_timestamp_offset;
  65   }
  66
  67   bool NewConfigF(const AudioDecoderConfig& ac,
  68                   const VideoDecoderConfig& vc,
  69                   const StreamParser::TextTrackConfigMap& tc) {
  70     DVLOG(1) << "NewConfigF: audio=" << ac.IsValidConfig()
  71              << ", video=" << vc.IsValidConfig();
  72     configs_received_ = true;
  73     return true;
  74   }
  75
  76
  77   void DumpBuffers(const std::string& label,
  78                    const StreamParser::BufferQueue& buffers) {
  79     DVLOG(2) << "DumpBuffers: " << label << " size " << buffers.size();
  80     for (StreamParser::BufferQueue::const_iterator buf = buffers.begin();
  81          buf != buffers.end(); buf++) {
  82       DVLOG(3) << "  n=" << buf - buffers.begin()
  83                << ", size=" << (*buf)->data_size()
  84                << ", dur=" << (*buf)->duration().InMilliseconds();
  85     }
  86   }
  87
  88   bool NewBuffersF(const StreamParser::BufferQueue& audio_buffers,
  89                    const StreamParser::BufferQueue& video_buffers,
  90                    const StreamParser::TextBufferQueueMap& text_map) {
  91     DumpBuffers("audio_buffers", audio_buffers);
  92     DumpBuffers("video_buffers", video_buffers);
  93
  94     // TODO(wolenetz/acolwell): Add text track support to more MSE parsers. See
  95     // http://crbug.com/336926.
  96     if (!text_map.empty())
  97       return false;
  98
  99     return true;
 100   }
 101
 102   void KeyNeededF(const std::string& type,
 103                   const std::vector<uint8>& init_data) {
 104     DVLOG(1) << "KeyNeededF: " << init_data.size();
 105     EXPECT_EQ(kMp4InitDataType, type);
 106     EXPECT_FALSE(init_data.empty());
 107   }
 108
 109   void NewSegmentF() {
 110     DVLOG(1) << "NewSegmentF";
 111   }
 112
 113   void EndOfSegmentF() {
 114     DVLOG(1) << "EndOfSegmentF()";
 115   }
 116
 117   void InitializeParser() {
 118     parser_->Init(
 119         base::Bind(&MP4StreamParserTest::InitF, base::Unretained(this)),
 120         base::Bind(&MP4StreamParserTest::NewConfigF, base::Unretained(this)),
 121         base::Bind(&MP4StreamParserTest::NewBuffersF, base::Unretained(this)),
 122         true,
 123         base::Bind(&MP4StreamParserTest::KeyNeededF, base::Unretained(this)),
 124         base::Bind(&MP4StreamParserTest::NewSegmentF, base::Unretained(this)),
 125         base::Bind(&MP4StreamParserTest::EndOfSegmentF,
 126                    base::Unretained(this)),
 127         LogCB());
 128   }
 129
 130   bool ParseMP4File(const std::string& filename, int append_bytes) {
 131     InitializeParser();
 132
 133     scoped_refptr<DecoderBuffer> buffer = ReadTestDataFile(filename);
 134     EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 135                                    buffer->data_size(),
 136                                    append_bytes));
 137     return true;
 138   }
 139 };
 140
 141 TEST_F(MP4StreamParserTest, UnalignedAppend) {
 142   // Test small, non-segment-aligned appends (small enough to exercise
 143   // incremental append system)
 144   ParseMP4File("bear-1280x720-av_frag.mp4", 512);
 145 }
 146
 147 TEST_F(MP4StreamParserTest, BytewiseAppend) {
 148   // Ensure no incremental errors occur when parsing
 149   ParseMP4File("bear-1280x720-av_frag.mp4", 1);
 150 }
 151
 152 TEST_F(MP4StreamParserTest, MultiFragmentAppend) {
 153   // Large size ensures multiple fragments are appended in one call (size is
 154   // larger than this particular test file)
 155   ParseMP4File("bear-1280x720-av_frag.mp4", 768432);
 156 }
 157
 158 TEST_F(MP4StreamParserTest, Flush) {
 159   // Flush while reading sample data, then start a new stream.
 160   InitializeParser();
 161
 162   scoped_refptr<DecoderBuffer> buffer =
 163       ReadTestDataFile("bear-1280x720-av_frag.mp4");
 164   EXPECT_TRUE(AppendDataInPieces(buffer->data(), 65536, 512));
 165   parser_->Flush();
 166   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 167                                  buffer->data_size(),
 168                                  512));
 169 }
 170
 171 TEST_F(MP4StreamParserTest, Reinitialization) {
 172   InitializeParser();
 173
 174   scoped_refptr<DecoderBuffer> buffer =
 175       ReadTestDataFile("bear-1280x720-av_frag.mp4");
 176   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 177                                  buffer->data_size(),
 178                                  512));
 179   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 180                                  buffer->data_size(),
 181                                  512));
 182 }
 183
 184 TEST_F(MP4StreamParserTest, MPEG2_AAC_LC) {
 185   std::set<int> audio_object_types;
 186   audio_object_types.insert(kISO_13818_7_AAC_LC);
 187   parser_.reset(new MP4StreamParser(audio_object_types, false));
 188   ParseMP4File("bear-mpeg2-aac-only_frag.mp4", 512);
 189 }
 190
 191 // Test that a moov box is not always required after Flush() is called.
 192 TEST_F(MP4StreamParserTest, NoMoovAfterFlush) {
 193   InitializeParser();
 194
 195   scoped_refptr<DecoderBuffer> buffer =
 196       ReadTestDataFile("bear-1280x720-av_frag.mp4");
 197   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 198                                  buffer->data_size(),
 199                                  512));
 200   parser_->Flush();
 201
 202   const int kFirstMoofOffset = 1307;
 203   EXPECT_TRUE(AppendDataInPieces(buffer->data() + kFirstMoofOffset,
 204                                  buffer->data_size() - kFirstMoofOffset,
 205                                  512));
 206 }
 207
 208 // Test an invalid file where there are encrypted samples, but
 209 // SampleAuxiliaryInformation{Sizes|Offsets}Box (saiz|saio) are missing.
 210 // The parser should fail instead of crash. See http://crbug.com/361347
 211 TEST_F(MP4StreamParserTest, MissingSampleAuxInfo) {
 212   InitializeParser();
 213
 214   scoped_refptr<DecoderBuffer> buffer =
 215       ReadTestDataFile("bear-1280x720-a_frag-cenc_missing-saiz-saio.mp4");
 216   EXPECT_FALSE(AppendDataInPieces(buffer->data(), buffer->data_size(), 512));
 217 }
 218
 219 // Test a file where all video samples start with an Access Unit
 220 // Delimiter (AUD) NALU.
 221 TEST_F(MP4StreamParserTest, VideoSamplesStartWithAUDs) {
 222   ParseMP4File("bear-1280x720-av_with-aud-nalus_frag.mp4", 512);
 223 }
 224
 225 // TODO(strobe): Create and test media which uses CENC auxiliary info stored
 226 // inside a private box
 227
 228 }  // namespace mp4
 229 }  // namespace media