chromecast/media/cma/test/demuxer_stream_for_test.h

   1 // Copyright 2015 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 CHROMECAST_MEDIA_CMA_TEST_DUMMY_DEMUXER_STREAM_H_
   6 #define CHROMECAST_MEDIA_CMA_TEST_DUMMY_DEMUXER_STREAM_H_
   7
   8 #include <list>
   9
  10 #include "base/bind.h"
  11 #include "base/thread_task_runner_handle.h"
  12 #include "chromecast/media/cma/filters/demuxer_stream_adapter.h"
  13 #include "media/base/decoder_buffer.h"
  14 #include "media/base/demuxer_stream.h"
  15
  16 namespace chromecast {
  17 namespace media {
  18
  19 class DemuxerStreamForTest : public ::media::DemuxerStream {
  20  public:
  21   // Creates a demuxer stream which provides frames either with a delay
  22   // or instantly.
  23   // - |total_frames| is the number of frames to generate before EOS frame.
  24   //   -1 means keep generating frames and never produce EOS.
  25   // The scheduling pattern is the following:
  26   // - provides |delayed_frame_count| frames with a delay,
  27   // - then provides the following |cycle_count| - |delayed_frame_count|
  28   //   instantly,
  29   // - then provides |delayed_frame_count| frames with a delay,
  30   // - ... and so on.
  31   // Special cases:
  32   // - all frames are delayed: |delayed_frame_count| = |cycle_count|
  33   // - all frames are provided instantly: |delayed_frame_count| = 0
  34   // |config_idx| is a list of frame index before which there is
  35   // a change of decoder configuration.
  36   DemuxerStreamForTest(int total_frames,
  37                        int cycle_count,
  38                        int delayed_frame_count,
  39                        const std::list<int>& config_idx);
  40   ~DemuxerStreamForTest() override;
  41
  42   // ::media::DemuxerStream implementation.
  43   void Read(const ReadCB& read_cb) override;
  44   ::media::AudioDecoderConfig audio_decoder_config() override;
  45   ::media::VideoDecoderConfig video_decoder_config() override;
  46   Type type() const override;
  47   bool SupportsConfigChanges() override;
  48   ::media::VideoRotation video_rotation() override;
  49
  50   bool has_pending_read() const { return has_pending_read_; }
  51
  52   // Frame duration
  53   static const int kDemuxerStreamForTestFrameDuration = 40;
  54
  55  private:
  56   void DoRead(const ReadCB& read_cb);
  57
  58   // Demuxer configuration.
  59   int total_frame_count_;
  60   const int cycle_count_;
  61   const int delayed_frame_count_;
  62   std::list<int> config_idx_;
  63
  64   // Number of frames sent so far.
  65   int frame_count_;
  66
  67   bool has_pending_read_;
  68
  69   DISALLOW_COPY_AND_ASSIGN(DemuxerStreamForTest);
  70 };
  71
  72 }  // namespace media
  73 }  // namespace chromecast
  74 #endif