media/base/container_names_unittest.cc

   1 // Copyright (c) 2013 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 "base/files/file_util.h"
   6 #include "media/base/container_names.h"
   7 #include "media/base/test_data_util.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9
  10 namespace media {
  11
  12 namespace container_names {
  13
  14 // Using a macros to simplify tests. Since EXPECT_EQ outputs the second argument
  15 // as a string when it fails, this lets the output identify what item actually
  16 // failed.
  17 #define VERIFY(buffer, name)                                           \
  18   EXPECT_EQ(name,                                                      \
  19             DetermineContainer(reinterpret_cast<const uint8*>(buffer), \
  20                                sizeof(buffer)))
  21
  22 // Test that small buffers are handled correctly.
  23 TEST(ContainerNamesTest, CheckSmallBuffer) {
  24   // Empty buffer.
  25   char buffer[1];  // ([0] not allowed on win)
  26   VERIFY(buffer, CONTAINER_UNKNOWN);
  27
  28   // Try a simple SRT file.
  29   char buffer1[] =
  30       "1\n"
  31       "00:03:23,550 --> 00:03:24,375\n"
  32       "You always had a hard time finding your place in this world.\n"
  33       "\n"
  34       "2\n"
  35       "00:03:24,476 --> 00:03:25,175\n"
  36       "What are you talking about?\n";
  37   VERIFY(buffer1, CONTAINER_SRT);
  38
  39   // HLS has it's own loop.
  40   char buffer2[] = "#EXTM3U"
  41                    "some other random stuff"
  42                    "#EXT-X-MEDIA-SEQUENCE:";
  43   VERIFY(buffer2, CONTAINER_HLS);
  44
  45   // Try a large buffer all zeros.
  46   char buffer3[4096];
  47   memset(buffer3, 0, sizeof(buffer3));
  48   VERIFY(buffer3, CONTAINER_UNKNOWN);
  49
  50   // Reuse buffer, but all \n this time.
  51   memset(buffer3, '\n', sizeof(buffer3));
  52   VERIFY(buffer3, CONTAINER_UNKNOWN);
  53 }
  54
  55 #define BYTE_ORDER_MARK "\xef\xbb\xbf"
  56
  57 // Note that the comparisons need at least 12 bytes, so make sure the buffer is
  58 // at least that size.
  59 const char kAmrBuffer[12] = "#!AMR";
  60 uint8 kAsfBuffer[] = { 0x30, 0x26, 0xb2, 0x75, 0x8e, 0x66, 0xcf, 0x11, 0xa6,
  61                        0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c };
  62 const char kAss1Buffer[] = "[Script Info]";
  63 const char kAss2Buffer[] = BYTE_ORDER_MARK "[Script Info]";
  64 uint8 kCafBuffer[] = { 'c', 'a', 'f', 'f', 0, 1, 0, 0, 'd', 'e', 's', 'c', 0, 0,
  65                        0, 0, 0, 0, 0, 32, 64, 229, 136, 128, 0, 0, 0, 0, 'a',
  66                        'a', 'c', ' ', 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0,
  67                        0, 2, 0, 0, 0, 0 };
  68 const char kDtshdBuffer[12] = "DTSHDHDR";
  69 const char kDxaBuffer[16] = "DEXA";
  70 const char kFlacBuffer[12] = "fLaC";
  71 uint8 kFlvBuffer[12] = { 'F', 'L', 'V', 0, 0, 0, 0, 1, 0, 0, 0, 0 };
  72 uint8 kIrcamBuffer[] = { 0x64, 0xa3, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1 };
  73 const char kRm1Buffer[12] = ".RMF\0\0";
  74 const char kRm2Buffer[12] = ".ra\xfd";
  75 uint8 kWtvBuffer[] = { 0xb7, 0xd8, 0x00, 0x20, 0x37, 0x49, 0xda, 0x11, 0xa6,
  76                        0x4e, 0x00, 0x07, 0xe9, 0x5e, 0xad, 0x8d };
  77 uint8 kBug263073Buffer[] = {
  78     0x00, 0x00, 0x00, 0x18, 0x66, 0x74, 0x79, 0x70, 0x6d, 0x70, 0x34, 0x32,
  79     0x00, 0x00, 0x00, 0x00, 0x69, 0x73, 0x6f, 0x6d, 0x6d, 0x70, 0x34, 0x32,
  80     0x00, 0x00, 0x00, 0x01, 0x6d, 0x64, 0x61, 0x74, 0x00, 0x00, 0x00, 0x00,
  81     0xaa, 0x2e, 0x22, 0xcf, 0x00, 0x00, 0x00, 0x37, 0x67, 0x64, 0x00, 0x28,
  82     0xac, 0x2c, 0xa4, 0x01, 0xe0, 0x08, 0x9f, 0x97, 0x01, 0x52, 0x02, 0x02,
  83     0x02, 0x80, 0x00, 0x01};
  84
  85 // Test that containers that start with fixed strings are handled correctly.
  86 // This is to verify that the TAG matches the first 4 characters of the string.
  87 TEST(ContainerNamesTest, CheckFixedStrings) {
  88   VERIFY(kAmrBuffer, CONTAINER_AMR);
  89   VERIFY(kAsfBuffer, CONTAINER_ASF);
  90   VERIFY(kAss1Buffer, CONTAINER_ASS);
  91   VERIFY(kAss2Buffer, CONTAINER_ASS);
  92   VERIFY(kCafBuffer, CONTAINER_CAF);
  93   VERIFY(kDtshdBuffer, CONTAINER_DTSHD);
  94   VERIFY(kDxaBuffer, CONTAINER_DXA);
  95   VERIFY(kFlacBuffer, CONTAINER_FLAC);
  96   VERIFY(kFlvBuffer, CONTAINER_FLV);
  97   VERIFY(kIrcamBuffer, CONTAINER_IRCAM);
  98   VERIFY(kRm1Buffer, CONTAINER_RM);
  99   VERIFY(kRm2Buffer, CONTAINER_RM);
 100   VERIFY(kWtvBuffer, CONTAINER_WTV);
 101   VERIFY(kBug263073Buffer, CONTAINER_MOV);
 102 }
 103
 104 // Determine the container type of a specified file.
 105 void TestFile(MediaContainerName expected, const base::FilePath& filename) {
 106   char buffer[8192];
 107
 108   // Windows implementation of ReadFile fails if file smaller than desired size,
 109   // so use file length if file less than 8192 bytes (http://crbug.com/243885).
 110   int read_size = sizeof(buffer);
 111   int64 actual_size;
 112   if (base::GetFileSize(filename, &actual_size) && actual_size < read_size)
 113     read_size = actual_size;
 114   int read = base::ReadFile(filename, buffer, read_size);
 115
 116   // Now verify the type.
 117   EXPECT_EQ(expected,
 118             DetermineContainer(reinterpret_cast<const uint8*>(buffer), read))
 119       << "Failure with file " << filename.value();
 120 }
 121
 122 TEST(ContainerNamesTest, FileCheckOGG) {
 123   TestFile(CONTAINER_OGG, GetTestDataFilePath("bear.ogv"));
 124   TestFile(CONTAINER_OGG, GetTestDataFilePath("9ch.ogg"));
 125 }
 126
 127 TEST(ContainerNamesTest, FileCheckWAV) {
 128   TestFile(CONTAINER_WAV, GetTestDataFilePath("4ch.wav"));
 129   TestFile(CONTAINER_WAV, GetTestDataFilePath("sfx_f32le.wav"));
 130   TestFile(CONTAINER_WAV, GetTestDataFilePath("sfx_s16le.wav"));
 131 }
 132
 133 TEST(ContainerNamesTest, FileCheckMOV) {
 134   TestFile(CONTAINER_MOV, GetTestDataFilePath("bear-1280x720.mp4"));
 135   TestFile(CONTAINER_MOV, GetTestDataFilePath("sfx.m4a"));
 136 }
 137
 138 TEST(ContainerNamesTest, FileCheckWEBM) {
 139   TestFile(CONTAINER_WEBM, GetTestDataFilePath("bear-320x240.webm"));
 140   TestFile(CONTAINER_WEBM, GetTestDataFilePath("no_streams.webm"));
 141   TestFile(CONTAINER_WEBM, GetTestDataFilePath("webm_ebml_element"));
 142 }
 143
 144 TEST(ContainerNamesTest, FileCheckMP3) {
 145   TestFile(CONTAINER_MP3, GetTestDataFilePath("id3_test.mp3"));
 146   TestFile(CONTAINER_MP3, GetTestDataFilePath("sfx.mp3"));
 147 }
 148
 149 TEST(ContainerNamesTest, FileCheckAC3) {
 150   TestFile(CONTAINER_AC3, GetTestDataFilePath("bear.ac3"));
 151 }
 152
 153 TEST(ContainerNamesTest, FileCheckAAC) {
 154   TestFile(CONTAINER_AAC, GetTestDataFilePath("bear.adts"));
 155 }
 156
 157 TEST(ContainerNamesTest, FileCheckAIFF) {
 158   TestFile(CONTAINER_AIFF, GetTestDataFilePath("bear.aiff"));
 159 }
 160
 161 TEST(ContainerNamesTest, FileCheckASF) {
 162   TestFile(CONTAINER_ASF, GetTestDataFilePath("bear.asf"));
 163 }
 164
 165 TEST(ContainerNamesTest, FileCheckAVI) {
 166   TestFile(CONTAINER_AVI, GetTestDataFilePath("bear.avi"));
 167 }
 168
 169 TEST(ContainerNamesTest, FileCheckEAC3) {
 170   TestFile(CONTAINER_EAC3, GetTestDataFilePath("bear.eac3"));
 171 }
 172
 173 TEST(ContainerNamesTest, FileCheckFLAC) {
 174   TestFile(CONTAINER_FLAC, GetTestDataFilePath("bear.flac"));
 175 }
 176
 177 TEST(ContainerNamesTest, FileCheckFLV) {
 178   TestFile(CONTAINER_FLV, GetTestDataFilePath("bear.flv"));
 179 }
 180
 181 TEST(ContainerNamesTest, FileCheckH261) {
 182   TestFile(CONTAINER_H261, GetTestDataFilePath("bear.h261"));
 183 }
 184
 185 TEST(ContainerNamesTest, FileCheckH263) {
 186   TestFile(CONTAINER_H263, GetTestDataFilePath("bear.h263"));
 187 }
 188
 189 TEST(ContainerNamesTest, FileCheckMJPEG) {
 190   TestFile(CONTAINER_MJPEG, GetTestDataFilePath("bear.mjpeg"));
 191 }
 192
 193 TEST(ContainerNamesTest, FileCheckMPEG2PS) {
 194   TestFile(CONTAINER_MPEG2PS, GetTestDataFilePath("bear.mpeg"));
 195 }
 196
 197 TEST(ContainerNamesTest, FileCheckMPEG2TS) {
 198   TestFile(CONTAINER_MPEG2TS, GetTestDataFilePath("bear.m2ts"));
 199 }
 200
 201 TEST(ContainerNamesTest, FileCheckRM) {
 202   TestFile(CONTAINER_RM, GetTestDataFilePath("bear.rm"));
 203 }
 204
 205 TEST(ContainerNamesTest, FileCheckSWF) {
 206   TestFile(CONTAINER_SWF, GetTestDataFilePath("bear.swf"));
 207 }
 208
 209 // Try a few non containers.
 210 TEST(ContainerNamesTest, FileCheckUNKNOWN) {
 211   TestFile(CONTAINER_UNKNOWN, GetTestDataFilePath("ten_byte_file"));
 212   TestFile(CONTAINER_UNKNOWN, GetTestDataFilePath("README"));
 213   TestFile(CONTAINER_UNKNOWN, GetTestDataFilePath("bali_640x360_P422.yuv"));
 214   TestFile(CONTAINER_UNKNOWN, GetTestDataFilePath("bali_640x360_RGB24.rgb"));
 215   TestFile(CONTAINER_UNKNOWN, GetTestDataFilePath("webm_vp8_track_entry"));
 216 }
 217
 218 }  // namespace container_names
 219
 220 }  // namespace media