media/filters/h264_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 "base/command_line.h"
   6 #include "base/files/memory_mapped_file.h"
   7 #include "base/logging.h"
   8 #include "base/strings/string_number_conversions.h"
   9 #include "media/base/test_data_util.h"
  10 #include "media/filters/h264_parser.h"
  11 #include "testing/gtest/include/gtest/gtest.h"
  12
  13 namespace media {
  14
  15 TEST(H264ParserTest, StreamFileParsing) {
  16   base::FilePath file_path = GetTestDataFilePath("test-25fps.h264");
  17   // Number of NALUs in the test stream to be parsed.
  18   int num_nalus = 759;
  19
  20   base::MemoryMappedFile stream;
  21   ASSERT_TRUE(stream.Initialize(file_path))
  22       << "Couldn't open stream file: " << file_path.MaybeAsASCII();
  23
  24   H264Parser parser;
  25   parser.SetStream(stream.data(), stream.length());
  26
  27   // Parse until the end of stream/unsupported stream/error in stream is found.
  28   int num_parsed_nalus = 0;
  29   while (true) {
  30     media::H264SliceHeader shdr;
  31     media::H264SEIMessage sei_msg;
  32     H264NALU nalu;
  33     H264Parser::Result res = parser.AdvanceToNextNALU(&nalu);
  34     if (res == H264Parser::kEOStream) {
  35       DVLOG(1) << "Number of successfully parsed NALUs before EOS: "
  36                << num_parsed_nalus;
  37       ASSERT_EQ(num_nalus, num_parsed_nalus);
  38       return;
  39     }
  40     ASSERT_EQ(res, H264Parser::kOk);
  41
  42     ++num_parsed_nalus;
  43
  44     int id;
  45     switch (nalu.nal_unit_type) {
  46       case H264NALU::kIDRSlice:
  47       case H264NALU::kNonIDRSlice:
  48         ASSERT_EQ(parser.ParseSliceHeader(nalu, &shdr), H264Parser::kOk);
  49         break;
  50
  51       case H264NALU::kSPS:
  52         ASSERT_EQ(parser.ParseSPS(&id), H264Parser::kOk);
  53         break;
  54
  55       case H264NALU::kPPS:
  56         ASSERT_EQ(parser.ParsePPS(&id), H264Parser::kOk);
  57         break;
  58
  59       case H264NALU::kSEIMessage:
  60         ASSERT_EQ(parser.ParseSEI(&sei_msg), H264Parser::kOk);
  61         break;
  62
  63       default:
  64         // Skip unsupported NALU.
  65         DVLOG(4) << "Skipping unsupported NALU";
  66         break;
  67     }
  68   }
  69 }
  70
  71 }  // namespace media