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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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 // This file contains an implementation of VideoDecodeAccelerator | 5 // This file contains an implementation of VideoDecodeAccelerator |
6 // that utilizes hardware video decoders, which expose Video4Linux 2 API | 6 // that utilizes hardware video decoders, which expose Video4Linux 2 API |
7 // (http://linuxtv.org/downloads/v4l-dvb-apis/). | 7 // (http://linuxtv.org/downloads/v4l-dvb-apis/). |
8 | 8 |
9 #ifndef CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_DECODE_ACCELERATOR_H_ | 9 #ifndef CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_DECODE_ACCELERATOR_H_ |
10 #define CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_DECODE_ACCELERATOR_H_ | 10 #define CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_DECODE_ACCELERATOR_H_ |
11 | 11 |
12 #include <queue> | 12 #include <queue> |
13 #include <vector> | 13 #include <vector> |
| 14 #include <linux/videodev2.h> |
14 | 15 |
15 #include "base/callback_forward.h" | 16 #include "base/callback_forward.h" |
16 #include "base/memory/linked_ptr.h" | 17 #include "base/memory/linked_ptr.h" |
17 #include "base/memory/scoped_ptr.h" | 18 #include "base/memory/scoped_ptr.h" |
18 #include "base/synchronization/waitable_event.h" | 19 #include "base/synchronization/waitable_event.h" |
19 #include "base/threading/thread.h" | 20 #include "base/threading/thread.h" |
20 #include "content/common/content_export.h" | 21 #include "content/common/content_export.h" |
21 #include "content/common/gpu/media/v4l2_video_device.h" | 22 #include "content/common/gpu/media/v4l2_video_device.h" |
22 #include "content/common/gpu/media/video_decode_accelerator_impl.h" | 23 #include "content/common/gpu/media/video_decode_accelerator_impl.h" |
23 #include "media/base/limits.h" | 24 #include "media/base/limits.h" |
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419 | 420 |
420 // Make our context current before running any EGL entry points. | 421 // Make our context current before running any EGL entry points. |
421 base::Callback<bool(void)> make_context_current_; | 422 base::Callback<bool(void)> make_context_current_; |
422 | 423 |
423 // EGL state | 424 // EGL state |
424 EGLDisplay egl_display_; | 425 EGLDisplay egl_display_; |
425 | 426 |
426 // The codec we'll be decoding for. | 427 // The codec we'll be decoding for. |
427 media::VideoCodecProfile video_profile_; | 428 media::VideoCodecProfile video_profile_; |
428 | 429 |
| 430 // Stores the current format. This is used to check against |
| 431 // the format received when we dequeue a RESOLUTION_CHANGE event. |
| 432 // Resolution change sequence is only executed if the new format is different |
| 433 // than the current_format_. |
| 434 struct v4l2_format current_format_; |
| 435 |
429 DISALLOW_COPY_AND_ASSIGN(V4L2VideoDecodeAccelerator); | 436 DISALLOW_COPY_AND_ASSIGN(V4L2VideoDecodeAccelerator); |
430 }; | 437 }; |
431 | 438 |
432 } // namespace content | 439 } // namespace content |
433 | 440 |
434 #endif // CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_DECODE_ACCELERATOR_H_ | 441 #endif // CONTENT_COMMON_GPU_MEDIA_V4L2_VIDEO_DECODE_ACCELERATOR_H_ |
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