1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61

media / base / decoder_factory.h [blame]

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_BASE_DECODER_FACTORY_H_
#define MEDIA_BASE_DECODER_FACTORY_H_

#include <memory>
#include <vector>

#include "base/memory/scoped_refptr.h"
#include "media/base/media_export.h"
#include "media/base/overlay_info.h"
#include "media/base/supported_video_decoder_config.h"

namespace base {
class SequencedTaskRunner;
}  // namespace base

namespace gfx {
class ColorSpace;
}  // namespace gfx

namespace media {

class AudioDecoder;
class GpuVideoAcceleratorFactories;
class MediaLog;
class VideoDecoder;

// A factory class for creating audio and video decoders.
class MEDIA_EXPORT DecoderFactory {
 public:
  DecoderFactory();

  DecoderFactory(const DecoderFactory&) = delete;
  DecoderFactory& operator=(const DecoderFactory&) = delete;

  virtual ~DecoderFactory();

  // Creates audio decoders and append them to the end of |audio_decoders|.
  // Decoders are single-threaded, each decoder should run on |task_runner|.
  virtual void CreateAudioDecoders(
      scoped_refptr<base::SequencedTaskRunner> task_runner,
      MediaLog* media_log,
      std::vector<std::unique_ptr<AudioDecoder>>* audio_decoders);

  // Creates video decoders and append them to the end of |video_decoders|.
  // Decoders are single-threaded, each decoder should run on |task_runner|.
  virtual void CreateVideoDecoders(
      scoped_refptr<base::SequencedTaskRunner> task_runner,
      GpuVideoAcceleratorFactories* gpu_factories,
      MediaLog* media_log,
      RequestOverlayInfoCB request_overlay_info_cb,
      const gfx::ColorSpace& target_color_space,
      std::vector<std::unique_ptr<VideoDecoder>>* video_decoders);
};

}  // namespace media

#endif  // MEDIA_BASE_DECODER_FACTORY_H_