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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_GPU_JPEG_DECODER_H_ | 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_GPU_JPEG_DECODER_H_ |
| 6 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_GPU_JPEG_DECODER_H_ | 6 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_GPU_JPEG_DECODER_H_ |
| 7 | 7 |
| 8 #include <stddef.h> | 8 #include <stddef.h> |
| 9 #include <stdint.h> | 9 #include <stdint.h> |
| 10 | 10 |
| 11 #include <memory> | 11 #include <memory> |
| 12 #include <string> | 12 #include <string> |
| 13 | 13 |
| 14 #include "base/callback.h" | 14 #include "base/callback.h" |
| 15 #include "base/macros.h" | 15 #include "base/macros.h" |
| 16 #include "base/memory/ref_counted.h" | 16 #include "base/memory/ref_counted.h" |
| 17 #include "base/memory/weak_ptr.h" | 17 #include "base/memory/weak_ptr.h" |
| 18 #include "base/single_thread_task_runner.h" | 18 #include "base/single_thread_task_runner.h" |
| 19 #include "base/threading/thread.h" | 19 #include "base/threading/thread.h" |
| 20 #include "content/common/content_export.h" | 20 #include "content/common/content_export.h" |
| 21 #include "media/capture/video/video_capture_device.h" | 21 #include "media/capture/video/video_capture_jpeg_decoder.h" |
| 22 #include "media/video/jpeg_decode_accelerator.h" | 22 #include "media/video/jpeg_decode_accelerator.h" |
| 23 | 23 |
| 24 namespace gpu { | 24 namespace gpu { |
| 25 class GpuChannelHost; | 25 class GpuChannelHost; |
| 26 } | 26 } |
| 27 | 27 |
| 28 namespace media { | 28 namespace media { |
| 29 class VideoFrame; | 29 class VideoFrame; |
| 30 } | 30 } |
| 31 | 31 |
| 32 namespace content { | 32 namespace content { |
| 33 | 33 |
| 34 class CONTENT_EXPORT VideoCaptureJpegDecoder { | |
| 35 public: | |
| 36 // Enumeration of decoder status. The enumeration is published for clients to | |
| 37 // decide the behavior according to STATUS. | |
| 38 enum STATUS { | |
| 39 INIT_PENDING, // Default value while waiting initialization finished. | |
| 40 INIT_PASSED, // Initialization succeed. | |
| 41 FAILED, // JPEG decode is not supported, initialization failed, or | |
| 42 // decode error. | |
| 43 }; | |
| 44 | |
| 45 using DecodeDoneCB = base::Callback<void( | |
| 46 std::unique_ptr<media::VideoCaptureDevice::Client::Buffer>, | |
| 47 const scoped_refptr<media::VideoFrame>&)>; | |
| 48 | |
| 49 virtual ~VideoCaptureJpegDecoder() {} | |
| 50 | |
| 51 // Creates and intializes decoder asynchronously. | |
| 52 virtual void Initialize() = 0; | |
| 53 | |
| 54 // Returns initialization status. | |
| 55 virtual STATUS GetStatus() const = 0; | |
| 56 | |
| 57 // Decodes a JPEG picture. | |
| 58 virtual void DecodeCapturedData( | |
| 59 const uint8_t* data, | |
| 60 size_t in_buffer_size, | |
| 61 const media::VideoCaptureFormat& frame_format, | |
| 62 base::TimeTicks reference_time, | |
| 63 base::TimeDelta timestamp, | |
| 64 std::unique_ptr<media::VideoCaptureDevice::Client::Buffer> | |
| 65 out_buffer) = 0; | |
| 66 }; | |
| 67 | |
| 68 // Adapter to GpuJpegDecodeAccelerator for VideoCaptureDevice::Client. It takes | 34 // Adapter to GpuJpegDecodeAccelerator for VideoCaptureDevice::Client. It takes |
| 69 // care of GpuJpegDecodeAccelerator creation, shared memory, and threading | 35 // care of GpuJpegDecodeAccelerator creation, shared memory, and threading |
| 70 // issues. | 36 // issues. |
| 71 // | 37 // |
| 72 // All public methods except JpegDecodeAccelerator::Client ones should be called | 38 // All public methods except JpegDecodeAccelerator::Client ones should be called |
| 73 // on the same thread. JpegDecodeAccelerator::Client methods should be called on | 39 // on the same thread. JpegDecodeAccelerator::Client methods should be called on |
| 74 // the IO thread. | 40 // the IO thread. |
| 75 class CONTENT_EXPORT VideoCaptureGpuJpegDecoder | 41 class CONTENT_EXPORT VideoCaptureGpuJpegDecoder |
| 76 : public VideoCaptureJpegDecoder, | 42 : public media::VideoCaptureJpegDecoder, |
| 77 public media::JpegDecodeAccelerator::Client, | 43 public media::JpegDecodeAccelerator::Client, |
| 78 public base::NonThreadSafe, | 44 public base::NonThreadSafe, |
| 79 public base::SupportsWeakPtr<VideoCaptureGpuJpegDecoder> { | 45 public base::SupportsWeakPtr<VideoCaptureGpuJpegDecoder> { |
| 80 public: | 46 public: |
| 81 // |decode_done_cb| is called on the IO thread when decode succeed. This can | 47 // |decode_done_cb| is called on the IO thread when decode succeed. This can |
| 82 // be on any thread. |decode_done_cb| is never called after | 48 // be on any thread. |decode_done_cb| is never called after |
| 83 // VideoCaptureGpuJpegDecoder is destroyed. | 49 // VideoCaptureGpuJpegDecoder is destroyed. |
| 84 explicit VideoCaptureGpuJpegDecoder(const DecodeDoneCB& decode_done_cb); | 50 explicit VideoCaptureGpuJpegDecoder(const DecodeDoneCB& decode_done_cb); |
| 85 ~VideoCaptureGpuJpegDecoder() override; | 51 ~VideoCaptureGpuJpegDecoder() override; |
| 86 | 52 |
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| 147 std::unique_ptr<base::SharedMemory> in_shared_memory_; | 113 std::unique_ptr<base::SharedMemory> in_shared_memory_; |
| 148 | 114 |
| 149 STATUS decoder_status_; | 115 STATUS decoder_status_; |
| 150 | 116 |
| 151 DISALLOW_COPY_AND_ASSIGN(VideoCaptureGpuJpegDecoder); | 117 DISALLOW_COPY_AND_ASSIGN(VideoCaptureGpuJpegDecoder); |
| 152 }; | 118 }; |
| 153 | 119 |
| 154 } // namespace content | 120 } // namespace content |
| 155 | 121 |
| 156 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_GPU_JPEG_DECODER_H_ | 122 #endif // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_GPU_JPEG_DECODER_H_ |
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