media/cast/video_sender/external_video_encoder.h - Issue 388663003: Cast: Reshuffle files under media/cast

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Issue 388663003: Cast: Reshuffle files under media/cast (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: similarity = 10 Created 6 years, 5 months ago

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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_CAST_VIDEO_SENDER_EXTERNAL_VIDEO_ENCODER_H_

6 #define MEDIA_CAST_VIDEO_SENDER_EXTERNAL_VIDEO_ENCODER_H_

7

8 #include "base/memory/scoped_ptr.h"

9 #include "base/memory/weak_ptr.h"

10 #include "media/cast/cast_config.h"

11 #include "media/cast/cast_environment.h"

12 #include "media/cast/video_sender/video_encoder.h"

13 #include "media/video/video_encode_accelerator.h"

14

15 namespace media {

16 class VideoFrame;

17 }

18

19 namespace media {

20 namespace cast {

21

22 class LocalVideoEncodeAcceleratorClient;

23

24 // This object is called external from the main cast thread and internally from

25 // the video encoder thread.

26 class ExternalVideoEncoder : public VideoEncoder {

27 public:

28 ExternalVideoEncoder(

29 scoped_refptr<CastEnvironment> cast_environment,

30 const VideoSenderConfig& video_config,

31 const CreateVideoEncodeAcceleratorCallback& create_vea_cb,

32 const CreateVideoEncodeMemoryCallback& create_video_encode_mem_cb);

33

34 virtual ~ExternalVideoEncoder();

35

36 // Called from the main cast thread. This function post the encode task to the

37 // video encoder thread;

38 // The video_frame must be valid until the closure callback is called.

39 // The closure callback is called from the video encoder thread as soon as

40 // the encoder is done with the frame; it does not mean that the encoded frame

41 // has been sent out.

42 // Once the encoded frame is ready the frame_encoded_callback is called.

43 virtual bool EncodeVideoFrame(

44 const scoped_refptr<media::VideoFrame>& video_frame,

45 const base::TimeTicks& capture_time,

46 const FrameEncodedCallback& frame_encoded_callback) OVERRIDE;

47

48 // The following functions are called from the main cast thread.

49 virtual void SetBitRate(int new_bit_rate) OVERRIDE;

50 virtual void GenerateKeyFrame() OVERRIDE;

51 virtual void LatestFrameIdToReference(uint32 frame_id) OVERRIDE;

52

53 // Called when a VEA is created.

54 void OnCreateVideoEncodeAccelerator(

55 const CreateVideoEncodeMemoryCallback& create_video_encode_mem_cb,

56 scoped_refptr<base::SingleThreadTaskRunner> encoder_task_runner,

57 scoped_ptr<media::VideoEncodeAccelerator> vea);

58

59 protected:

60 void EncoderInitialized();

61 void EncoderError();

62

63 private:

64 friend class LocalVideoEncodeAcceleratorClient;

65

66 VideoSenderConfig video_config_;

67 scoped_refptr<CastEnvironment> cast_environment_;

68

69 bool encoder_active_;

70 bool key_frame_requested_;

71

72 scoped_refptr<LocalVideoEncodeAcceleratorClient> video_accelerator_client_;

73 scoped_refptr<base::SingleThreadTaskRunner> encoder_task_runner_;

74

75 // Weak pointer factory for posting back LocalVideoEncodeAcceleratorClient

76 // notifications to ExternalVideoEncoder.

77 // NOTE: Weak pointers must be invalidated before all other member variables.

78 base::WeakPtrFactory<ExternalVideoEncoder> weak_factory_;

79

80 DISALLOW_COPY_AND_ASSIGN(ExternalVideoEncoder);

81 };

82

83 } // namespace cast

84 } // namespace media

85

86 #endif // MEDIA_CAST_VIDEO_SENDER_EXTERNAL_VIDEO_ENCODER_H_

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