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 class MP4StreamParserTest : public testing::Test {
  29  public:
  30   MP4StreamParserTest()
  31       : configs_received_(false),
  32         lower_bound_(
  33             DecodeTimestamp::FromPresentationTime(base::TimeDelta::Max())) {
  34     std::set<int> audio_object_types;
  35     audio_object_types.insert(kISO_14496_3);
  36     parser_.reset(new MP4StreamParser(audio_object_types, false));
  37   }
  38
  39  protected:
  40   scoped_ptr<MP4StreamParser> parser_;
  41   bool configs_received_;
  42   DecodeTimestamp lower_bound_;
  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(const StreamParser::InitParameters& params) {
  62     DVLOG(1) << "InitF: dur=" << params.duration.InMilliseconds()
  63              << ", autoTimestampOffset=" << params.auto_update_timestamp_offset;
  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   void DumpBuffers(const std::string& label,
  76                    const StreamParser::BufferQueue& buffers) {
  77     DVLOG(2) << "DumpBuffers: " << label << " size " << buffers.size();
  78     for (StreamParser::BufferQueue::const_iterator buf = buffers.begin();
  79          buf != buffers.end(); buf++) {
  80       DVLOG(3) << "  n=" << buf - buffers.begin()
  81                << ", size=" << (*buf)->data_size()
  82                << ", dur=" << (*buf)->duration().InMilliseconds();
  83     }
  84   }
  85
  86   bool NewBuffersF(const StreamParser::BufferQueue& audio_buffers,
  87                    const StreamParser::BufferQueue& video_buffers,
  88                    const StreamParser::TextBufferQueueMap& text_map) {
  89     DumpBuffers("audio_buffers", audio_buffers);
  90     DumpBuffers("video_buffers", video_buffers);
  91
  92     // TODO(wolenetz/acolwell): Add text track support to more MSE parsers. See
  93     // http://crbug.com/336926.
  94     if (!text_map.empty())
  95       return false;
  96
  97     // Find the second highest timestamp so that we know what the
  98     // timestamps on the next set of buffers must be >= than.
  99     DecodeTimestamp audio = !audio_buffers.empty() ?
 100         audio_buffers.back()->GetDecodeTimestamp() : kNoDecodeTimestamp();
 101     DecodeTimestamp video = !video_buffers.empty() ?
 102         video_buffers.back()->GetDecodeTimestamp() : kNoDecodeTimestamp();
 103     DecodeTimestamp second_highest_timestamp =
 104         (audio == kNoDecodeTimestamp() ||
 105          (video != kNoDecodeTimestamp() && audio > video)) ? video : audio;
 106
 107     DCHECK(second_highest_timestamp != kNoDecodeTimestamp());
 108
 109     if (lower_bound_ != kNoDecodeTimestamp() &&
 110         second_highest_timestamp < lower_bound_) {
 111       return false;
 112     }
 113
 114     lower_bound_ = second_highest_timestamp;
 115     return true;
 116   }
 117
 118   void KeyNeededF(EmeInitDataType type, const std::vector<uint8>& init_data) {
 119     DVLOG(1) << "KeyNeededF: " << init_data.size();
 120     EXPECT_EQ(EmeInitDataType::CENC, type);
 121     EXPECT_FALSE(init_data.empty());
 122   }
 123
 124   void NewSegmentF() {
 125     DVLOG(1) << "NewSegmentF";
 126     lower_bound_ = kNoDecodeTimestamp();
 127   }
 128
 129   void EndOfSegmentF() {
 130     DVLOG(1) << "EndOfSegmentF()";
 131     lower_bound_ =
 132         DecodeTimestamp::FromPresentationTime(base::TimeDelta::Max());
 133   }
 134
 135   void InitializeParser() {
 136     parser_->Init(
 137         base::Bind(&MP4StreamParserTest::InitF, base::Unretained(this)),
 138         base::Bind(&MP4StreamParserTest::NewConfigF, base::Unretained(this)),
 139         base::Bind(&MP4StreamParserTest::NewBuffersF, base::Unretained(this)),
 140         true,
 141         base::Bind(&MP4StreamParserTest::KeyNeededF, base::Unretained(this)),
 142         base::Bind(&MP4StreamParserTest::NewSegmentF, base::Unretained(this)),
 143         base::Bind(&MP4StreamParserTest::EndOfSegmentF,
 144                    base::Unretained(this)),
 145         LogCB());
 146   }
 147
 148   bool ParseMP4File(const std::string& filename, int append_bytes) {
 149     InitializeParser();
 150
 151     scoped_refptr<DecoderBuffer> buffer = ReadTestDataFile(filename);
 152     EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 153                                    buffer->data_size(),
 154                                    append_bytes));
 155     return true;
 156   }
 157 };
 158
 159 TEST_F(MP4StreamParserTest, UnalignedAppend) {
 160   // Test small, non-segment-aligned appends (small enough to exercise
 161   // incremental append system)
 162   ParseMP4File("bear-1280x720-av_frag.mp4", 512);
 163 }
 164
 165 TEST_F(MP4StreamParserTest, BytewiseAppend) {
 166   // Ensure no incremental errors occur when parsing
 167   ParseMP4File("bear-1280x720-av_frag.mp4", 1);
 168 }
 169
 170 TEST_F(MP4StreamParserTest, MultiFragmentAppend) {
 171   // Large size ensures multiple fragments are appended in one call (size is
 172   // larger than this particular test file)
 173   ParseMP4File("bear-1280x720-av_frag.mp4", 768432);
 174 }
 175
 176 TEST_F(MP4StreamParserTest, Flush) {
 177   // Flush while reading sample data, then start a new stream.
 178   InitializeParser();
 179
 180   scoped_refptr<DecoderBuffer> buffer =
 181       ReadTestDataFile("bear-1280x720-av_frag.mp4");
 182   EXPECT_TRUE(AppendDataInPieces(buffer->data(), 65536, 512));
 183   parser_->Flush();
 184   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 185                                  buffer->data_size(),
 186                                  512));
 187 }
 188
 189 TEST_F(MP4StreamParserTest, Reinitialization) {
 190   InitializeParser();
 191
 192   scoped_refptr<DecoderBuffer> buffer =
 193       ReadTestDataFile("bear-1280x720-av_frag.mp4");
 194   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 195                                  buffer->data_size(),
 196                                  512));
 197   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 198                                  buffer->data_size(),
 199                                  512));
 200 }
 201
 202 TEST_F(MP4StreamParserTest, MPEG2_AAC_LC) {
 203   std::set<int> audio_object_types;
 204   audio_object_types.insert(kISO_13818_7_AAC_LC);
 205   parser_.reset(new MP4StreamParser(audio_object_types, false));
 206   ParseMP4File("bear-mpeg2-aac-only_frag.mp4", 512);
 207 }
 208
 209 // Test that a moov box is not always required after Flush() is called.
 210 TEST_F(MP4StreamParserTest, NoMoovAfterFlush) {
 211   InitializeParser();
 212
 213   scoped_refptr<DecoderBuffer> buffer =
 214       ReadTestDataFile("bear-1280x720-av_frag.mp4");
 215   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 216                                  buffer->data_size(),
 217                                  512));
 218   parser_->Flush();
 219
 220   const int kFirstMoofOffset = 1307;
 221   EXPECT_TRUE(AppendDataInPieces(buffer->data() + kFirstMoofOffset,
 222                                  buffer->data_size() - kFirstMoofOffset,
 223                                  512));
 224 }
 225
 226 // Test an invalid file where there are encrypted samples, but
 227 // SampleAuxiliaryInformation{Sizes|Offsets}Box (saiz|saio) are missing.
 228 // The parser should fail instead of crash. See http://crbug.com/361347
 229 TEST_F(MP4StreamParserTest, MissingSampleAuxInfo) {
 230   InitializeParser();
 231
 232   scoped_refptr<DecoderBuffer> buffer =
 233       ReadTestDataFile("bear-1280x720-a_frag-cenc_missing-saiz-saio.mp4");
 234   EXPECT_FALSE(AppendDataInPieces(buffer->data(), buffer->data_size(), 512));
 235 }
 236
 237 // Test a file where all video samples start with an Access Unit
 238 // Delimiter (AUD) NALU.
 239 TEST_F(MP4StreamParserTest, VideoSamplesStartWithAUDs) {
 240   ParseMP4File("bear-1280x720-av_with-aud-nalus_frag.mp4", 512);
 241 }
 242
 243 // TODO(strobe): Create and test media which uses CENC auxiliary info stored
 244 // inside a private box
 245
 246 }  // namespace mp4
 247 }  // namespace media