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 #ifndef MEDIA_FILTERS_FAKE_DEMUXER_STREAM_H_ 6 #define MEDIA_FILTERS_FAKE_DEMUXER_STREAM_H_ 7 8 #include "base/basictypes.h" 9 #include "base/memory/ref_counted.h" 10 #include "media/base/audio_decoder_config.h" 11 #include "media/base/demuxer_stream.h" 12 #include "media/base/video_decoder_config.h" 13 14 namespace base { 15 class SingleThreadTaskRunner; 16 } // namespace base 17 18 namespace media { 19 20 class FakeDemuxerStream : public DemuxerStream { 21 public: 22 // Constructs an object that outputs |num_configs| different configs in 23 // sequence with |num_frames_in_one_config| buffers for each config. The 24 // output buffers are encrypted if |is_encrypted| is true. 25 FakeDemuxerStream(int num_configs, 26 int num_buffers_in_one_config, 27 bool is_encrypted); 28 virtual ~FakeDemuxerStream(); 29 30 // DemuxerStream implementation. 31 virtual void Read(const ReadCB& read_cb) OVERRIDE; 32 virtual AudioDecoderConfig audio_decoder_config() OVERRIDE; 33 virtual VideoDecoderConfig video_decoder_config() OVERRIDE; 34 virtual Type type() OVERRIDE; 35 virtual void EnableBitstreamConverter() OVERRIDE; 36 virtual bool SupportsConfigChanges() OVERRIDE; 37 38 void Initialize(); 39 num_buffers_returned()40 int num_buffers_returned() const { return num_buffers_returned_; } 41 42 // Upon the next read, holds the read callback until SatisfyRead() or Reset() 43 // is called. 44 void HoldNextRead(); 45 46 // Upon the next config change read, holds the read callback until 47 // SatisfyRead() or Reset() is called. If there is no config change any more, 48 // no read will be held. 49 void HoldNextConfigChangeRead(); 50 51 // Satisfies the pending read with the next scheduled status and buffer. 52 void SatisfyRead(); 53 54 // Satisfies pending read request and then holds the following read. 55 void SatisfyReadAndHoldNext(); 56 57 // Satisfies the pending read (if any) with kAborted and NULL. This call 58 // always clears |hold_next_read_|. 59 void Reset(); 60 61 // Reset() this demuxer stream and set the reading position to the start of 62 // the stream. 63 void SeekToStart(); 64 65 // Sets the splice timestamp for all furture buffers returned via Read(). set_splice_timestamp(base::TimeDelta splice_timestamp)66 void set_splice_timestamp(base::TimeDelta splice_timestamp) { 67 splice_timestamp_ = splice_timestamp; 68 } 69 70 private: 71 void UpdateVideoDecoderConfig(); 72 void DoRead(); 73 74 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; 75 76 const int num_configs_; 77 const int num_buffers_in_one_config_; 78 const bool config_changes_; 79 const bool is_encrypted_; 80 81 int num_configs_left_; 82 83 // Number of frames left with the current decoder config. 84 int num_buffers_left_in_current_config_; 85 86 int num_buffers_returned_; 87 88 base::TimeDelta current_timestamp_; 89 base::TimeDelta duration_; 90 base::TimeDelta splice_timestamp_; 91 92 gfx::Size next_coded_size_; 93 VideoDecoderConfig video_decoder_config_; 94 95 ReadCB read_cb_; 96 97 int next_read_num_; 98 // Zero-based number indicating which read operation should be held. -1 means 99 // no read shall be held. 100 int read_to_hold_; 101 102 DISALLOW_COPY_AND_ASSIGN(FakeDemuxerStream); 103 }; 104 105 } // namespace media 106 107 #endif // MEDIA_FILTERS_FAKE_DEMUXER_STREAM_H_ 108