media/filters/fake_demuxer_stream.h

   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/media_export.h"
  13 #include "media/base/video_decoder_config.h"
  14
  15 namespace base {
  16 class MessageLoopProxy;
  17 }  // namespace base
  18
  19 namespace media {
  20
  21 class MEDIA_EXPORT FakeDemuxerStream : public DemuxerStream {
  22  public:
  23   // Constructs an object that outputs |num_configs| different configs in
  24   // sequence with |num_frames_in_one_config| buffers for each config. The
  25   // output buffers are encrypted if |is_encrypted| is true.
  26   FakeDemuxerStream(int num_configs,
  27                     int num_buffers_in_one_config,
  28                     bool is_encrypted);
  29   virtual ~FakeDemuxerStream();
  30
  31   // DemuxerStream implementation.
  32   virtual void Read(const ReadCB& read_cb) OVERRIDE;
  33   virtual const AudioDecoderConfig& audio_decoder_config() OVERRIDE;
  34   virtual const VideoDecoderConfig& video_decoder_config() OVERRIDE;
  35   virtual Type type() OVERRIDE;
  36   virtual void EnableBitstreamConverter() OVERRIDE;
  37
  38   // Upon the next read, holds the read callback until SatisfyRead() or Reset()
  39   // is called.
  40   void HoldNextRead();
  41
  42   // Satisfies the pending read with the next scheduled status and buffer.
  43   void SatisfyRead();
  44
  45   // Satisfies the pending read (if any) with kAborted and NULL. This call
  46   // always clears |hold_next_read_|.
  47   void Reset();
  48
  49  private:
  50   void UpdateVideoDecoderConfig();
  51   void DoRead();
  52
  53   scoped_refptr<base::MessageLoopProxy> message_loop_;
  54
  55   int num_configs_left_;
  56   int num_buffers_in_one_config_;
  57   bool is_encrypted_;
  58
  59   // Number of frames left with the current decoder config.
  60   int num_buffers_left_in_current_config_;
  61
  62   base::TimeDelta current_timestamp_;
  63   base::TimeDelta duration_;
  64
  65   AudioDecoderConfig audio_decoder_config_;
  66
  67   gfx::Size next_coded_size_;
  68   VideoDecoderConfig video_decoder_config_;
  69
  70   ReadCB read_cb_;
  71   bool hold_next_read_;
  72
  73   DISALLOW_COPY_AND_ASSIGN(FakeDemuxerStream);
  74 };
  75
  76 }  // namespace media
  77
  78 #endif  // MEDIA_FILTERS_FAKE_DEMUXER_STREAM_H_