media/formats/common/stream_parser_test_base.h

   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 #ifndef MEDIA_FORMATS_COMMON_STREAM_PARSER_TEST_BASE_H_
   6 #define MEDIA_FORMATS_COMMON_STREAM_PARSER_TEST_BASE_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "media/base/audio_decoder_config.h"
  10 #include "media/base/stream_parser.h"
  11 #include "media/base/stream_parser_buffer.h"
  12 #include "media/base/text_track_config.h"
  13 #include "media/base/video_decoder_config.h"
  14
  15 namespace media {
  16
  17 // Test helper for verifying StreamParser behavior.
  18 class StreamParserTestBase {
  19  public:
  20   explicit StreamParserTestBase(scoped_ptr<StreamParser> stream_parser);
  21   virtual ~StreamParserTestBase();
  22
  23  protected:
  24   // Chunks a given parser appropriate file.  Appends |append_bytes| at a time
  25   // until the file is exhausted.  Returns a coded string representing the
  26   // segments and timestamps of the extracted frames.
  27   //
  28   // The start of each media segment is designated by "NewSegment", similarly
  29   // the end of each segment by "EndOfSegment".  Segments end when one or more
  30   // frames are parsed from an append.  If the append contains a partial frame
  31   // the segment will continue into the next append.
  32   //
  33   // Parsed frame(s) are represented as "{ xxK yyK zzK }"  Where xx, yy, and zz
  34   // are the timestamps in milliseconds of each parsed frame.  For example:
  35   //
  36   //     "NewSegment{ 0K 23K 46K }EndOfSegment"
  37   //     "NewSegment{ 0K }{ 23K }{ 46K }EndOfSegment"
  38   //     "NewSegment{ 0K }{ 23K }EndOfSegmentNewSegment{ 46K }EndOfSegment"
  39   //
  40   std::string ParseFile(const std::string& filename, int append_bytes);
  41
  42   // Similar to ParseFile() except parses the given |data| in a single append of
  43   // size |length|.
  44   std::string ParseData(const uint8* data, size_t length);
  45
  46   // The last AudioDecoderConfig handed to OnNewConfig().
  47   const AudioDecoderConfig& last_audio_config() const {
  48     return last_audio_config_;
  49   }
  50
  51  private:
  52   bool AppendDataInPieces(const uint8* data, size_t length, size_t piece_size);
  53   void OnInitDone(const StreamParser::InitParameters& params);
  54   bool OnNewConfig(const AudioDecoderConfig& audio_config,
  55                    const VideoDecoderConfig& video_config,
  56                    const StreamParser::TextTrackConfigMap& text_config);
  57   bool OnNewBuffers(const StreamParser::BufferQueue& audio_buffers,
  58                     const StreamParser::BufferQueue& video_buffers,
  59                     const StreamParser::TextBufferQueueMap& text_map);
  60   void OnKeyNeeded(EmeInitDataType type, const std::vector<uint8>& init_data);
  61   void OnNewSegment();
  62   void OnEndOfSegment();
  63
  64   scoped_ptr<StreamParser> parser_;
  65   std::stringstream results_stream_;
  66   AudioDecoderConfig last_audio_config_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(StreamParserTestBase);
  69 };
  70
  71 }  // namespace media
  72
  73 #endif  // MEDIA_FORMATS_COMMON_STREAM_PARSER_TEST_BASE_H_