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 static const char kCencInitDataType[] = "cenc";
  29
  30 class MP4StreamParserTest : public testing::Test {
  31  public:
  32   MP4StreamParserTest()
  33       : configs_received_(false),
  34         lower_bound_(
  35             DecodeTimestamp::FromPresentationTime(base::TimeDelta::Max())) {
  36     std::set<int> audio_object_types;
  37     audio_object_types.insert(kISO_14496_3);
  38     parser_.reset(new MP4StreamParser(audio_object_types, false));
  39   }
  40
  41  protected:
  42   scoped_ptr<MP4StreamParser> parser_;
  43   bool configs_received_;
  44   DecodeTimestamp lower_bound_;
  45
  46   bool AppendData(const uint8* data, size_t length) {
  47     return parser_->Parse(data, length);
  48   }
  49
  50   bool AppendDataInPieces(const uint8* data, size_t length, size_t piece_size) {
  51     const uint8* start = data;
  52     const uint8* end = data + length;
  53     while (start < end) {
  54       size_t append_size = std::min(piece_size,
  55                                     static_cast<size_t>(end - start));
  56       if (!AppendData(start, append_size))
  57         return false;
  58       start += append_size;
  59     }
  60     return true;
  61   }
  62
  63   void InitF(bool init_ok, const StreamParser::InitParameters& params) {
  64     DVLOG(1) << "InitF: ok=" << init_ok
  65              << ", dur=" << params.duration.InMilliseconds()
  66              << ", autoTimestampOffset=" << params.auto_update_timestamp_offset;
  67   }
  68
  69   bool NewConfigF(const AudioDecoderConfig& ac,
  70                   const VideoDecoderConfig& vc,
  71                   const StreamParser::TextTrackConfigMap& tc) {
  72     DVLOG(1) << "NewConfigF: audio=" << ac.IsValidConfig()
  73              << ", video=" << vc.IsValidConfig();
  74     configs_received_ = true;
  75     return true;
  76   }
  77
  78   void DumpBuffers(const std::string& label,
  79                    const StreamParser::BufferQueue& buffers) {
  80     DVLOG(2) << "DumpBuffers: " << label << " size " << buffers.size();
  81     for (StreamParser::BufferQueue::const_iterator buf = buffers.begin();
  82          buf != buffers.end(); buf++) {
  83       DVLOG(3) << "  n=" << buf - buffers.begin()
  84                << ", size=" << (*buf)->data_size()
  85                << ", dur=" << (*buf)->duration().InMilliseconds();
  86     }
  87   }
  88
  89   bool NewBuffersF(const StreamParser::BufferQueue& audio_buffers,
  90                    const StreamParser::BufferQueue& video_buffers,
  91                    const StreamParser::TextBufferQueueMap& text_map) {
  92     DumpBuffers("audio_buffers", audio_buffers);
  93     DumpBuffers("video_buffers", video_buffers);
  94
  95     // TODO(wolenetz/acolwell): Add text track support to more MSE parsers. See
  96     // http://crbug.com/336926.
  97     if (!text_map.empty())
  98       return false;
  99
 100     // Find the second highest timestamp so that we know what the
 101     // timestamps on the next set of buffers must be >= than.
 102     DecodeTimestamp audio = !audio_buffers.empty() ?
 103         audio_buffers.back()->GetDecodeTimestamp() : kNoDecodeTimestamp();
 104     DecodeTimestamp video = !video_buffers.empty() ?
 105         video_buffers.back()->GetDecodeTimestamp() : kNoDecodeTimestamp();
 106     DecodeTimestamp second_highest_timestamp =
 107         (audio == kNoDecodeTimestamp() ||
 108          (video != kNoDecodeTimestamp() && audio > video)) ? video : audio;
 109
 110     DCHECK(second_highest_timestamp != kNoDecodeTimestamp());
 111
 112     if (lower_bound_ != kNoDecodeTimestamp() &&
 113         second_highest_timestamp < lower_bound_) {
 114       return false;
 115     }
 116
 117     lower_bound_ = second_highest_timestamp;
 118     return true;
 119   }
 120
 121   void KeyNeededF(const std::string& type,
 122                   const std::vector<uint8>& init_data) {
 123     DVLOG(1) << "KeyNeededF: " << init_data.size();
 124     EXPECT_EQ(kCencInitDataType, type);
 125     EXPECT_FALSE(init_data.empty());
 126   }
 127
 128   void NewSegmentF() {
 129     DVLOG(1) << "NewSegmentF";
 130     lower_bound_ = kNoDecodeTimestamp();
 131   }
 132
 133   void EndOfSegmentF() {
 134     DVLOG(1) << "EndOfSegmentF()";
 135     lower_bound_ =
 136         DecodeTimestamp::FromPresentationTime(base::TimeDelta::Max());
 137   }
 138
 139   void InitializeParser() {
 140     parser_->Init(
 141         base::Bind(&MP4StreamParserTest::InitF, base::Unretained(this)),
 142         base::Bind(&MP4StreamParserTest::NewConfigF, base::Unretained(this)),
 143         base::Bind(&MP4StreamParserTest::NewBuffersF, base::Unretained(this)),
 144         true,
 145         base::Bind(&MP4StreamParserTest::KeyNeededF, base::Unretained(this)),
 146         base::Bind(&MP4StreamParserTest::NewSegmentF, base::Unretained(this)),
 147         base::Bind(&MP4StreamParserTest::EndOfSegmentF,
 148                    base::Unretained(this)),
 149         LogCB());
 150   }
 151
 152   bool ParseMP4File(const std::string& filename, int append_bytes) {
 153     InitializeParser();
 154
 155     scoped_refptr<DecoderBuffer> buffer = ReadTestDataFile(filename);
 156     EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 157                                    buffer->data_size(),
 158                                    append_bytes));
 159     return true;
 160   }
 161 };
 162
 163 TEST_F(MP4StreamParserTest, UnalignedAppend) {
 164   // Test small, non-segment-aligned appends (small enough to exercise
 165   // incremental append system)
 166   ParseMP4File("bear-1280x720-av_frag.mp4", 512);
 167 }
 168
 169 TEST_F(MP4StreamParserTest, BytewiseAppend) {
 170   // Ensure no incremental errors occur when parsing
 171   ParseMP4File("bear-1280x720-av_frag.mp4", 1);
 172 }
 173
 174 TEST_F(MP4StreamParserTest, MultiFragmentAppend) {
 175   // Large size ensures multiple fragments are appended in one call (size is
 176   // larger than this particular test file)
 177   ParseMP4File("bear-1280x720-av_frag.mp4", 768432);
 178 }
 179
 180 TEST_F(MP4StreamParserTest, Flush) {
 181   // Flush while reading sample data, then start a new stream.
 182   InitializeParser();
 183
 184   scoped_refptr<DecoderBuffer> buffer =
 185       ReadTestDataFile("bear-1280x720-av_frag.mp4");
 186   EXPECT_TRUE(AppendDataInPieces(buffer->data(), 65536, 512));
 187   parser_->Flush();
 188   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 189                                  buffer->data_size(),
 190                                  512));
 191 }
 192
 193 TEST_F(MP4StreamParserTest, Reinitialization) {
 194   InitializeParser();
 195
 196   scoped_refptr<DecoderBuffer> buffer =
 197       ReadTestDataFile("bear-1280x720-av_frag.mp4");
 198   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 199                                  buffer->data_size(),
 200                                  512));
 201   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 202                                  buffer->data_size(),
 203                                  512));
 204 }
 205
 206 TEST_F(MP4StreamParserTest, MPEG2_AAC_LC) {
 207   std::set<int> audio_object_types;
 208   audio_object_types.insert(kISO_13818_7_AAC_LC);
 209   parser_.reset(new MP4StreamParser(audio_object_types, false));
 210   ParseMP4File("bear-mpeg2-aac-only_frag.mp4", 512);
 211 }
 212
 213 // Test that a moov box is not always required after Flush() is called.
 214 TEST_F(MP4StreamParserTest, NoMoovAfterFlush) {
 215   InitializeParser();
 216
 217   scoped_refptr<DecoderBuffer> buffer =
 218       ReadTestDataFile("bear-1280x720-av_frag.mp4");
 219   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
 220                                  buffer->data_size(),
 221                                  512));
 222   parser_->Flush();
 223
 224   const int kFirstMoofOffset = 1307;
 225   EXPECT_TRUE(AppendDataInPieces(buffer->data() + kFirstMoofOffset,
 226                                  buffer->data_size() - kFirstMoofOffset,
 227                                  512));
 228 }
 229
 230 // Test an invalid file where there are encrypted samples, but
 231 // SampleAuxiliaryInformation{Sizes|Offsets}Box (saiz|saio) are missing.
 232 // The parser should fail instead of crash. See http://crbug.com/361347
 233 TEST_F(MP4StreamParserTest, MissingSampleAuxInfo) {
 234   InitializeParser();
 235
 236   scoped_refptr<DecoderBuffer> buffer =
 237       ReadTestDataFile("bear-1280x720-a_frag-cenc_missing-saiz-saio.mp4");
 238   EXPECT_FALSE(AppendDataInPieces(buffer->data(), buffer->data_size(), 512));
 239 }
 240
 241 // Test a file where all video samples start with an Access Unit
 242 // Delimiter (AUD) NALU.
 243 TEST_F(MP4StreamParserTest, VideoSamplesStartWithAUDs) {
 244   ParseMP4File("bear-1280x720-av_with-aud-nalus_frag.mp4", 512);
 245 }
 246
 247 // TODO(strobe): Create and test media which uses CENC auxiliary info stored
 248 // inside a private box
 249
 250 }  // namespace mp4
 251 }  // namespace media