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Side by Side Diff: content/common/gpu/media/exynos_video_decode_accelerator.h

Issue 119153002: Move H264Parser and H264BitReader to media/filters. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Add test-25fps.h264 to isolate Created 6 years, 12 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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 VideoDecoderAccelerator 5 // This file contains an implementation of VideoDecoderAccelerator
6 // that utilizes the hardware video decoder present on the Exynos SoC. 6 // that utilizes the hardware video decoder present on the Exynos SoC.
7 7
8 #ifndef CONTENT_COMMON_GPU_MEDIA_EXYNOS_VIDEO_DECODE_ACCELERATOR_H_ 8 #ifndef CONTENT_COMMON_GPU_MEDIA_EXYNOS_VIDEO_DECODE_ACCELERATOR_H_
9 #define CONTENT_COMMON_GPU_MEDIA_EXYNOS_VIDEO_DECODE_ACCELERATOR_H_ 9 #define CONTENT_COMMON_GPU_MEDIA_EXYNOS_VIDEO_DECODE_ACCELERATOR_H_
10 10
11 #include <queue> 11 #include <queue>
12 #include <vector> 12 #include <vector>
13 13
14 #include "base/callback_forward.h" 14 #include "base/callback_forward.h"
15 #include "base/memory/linked_ptr.h" 15 #include "base/memory/linked_ptr.h"
16 #include "base/memory/scoped_ptr.h" 16 #include "base/memory/scoped_ptr.h"
17 #include "base/threading/thread.h" 17 #include "base/threading/thread.h"
18 #include "content/common/content_export.h" 18 #include "content/common/content_export.h"
19 #include "content/common/gpu/media/video_decode_accelerator_impl.h" 19 #include "content/common/gpu/media/video_decode_accelerator_impl.h"
20 #include "media/base/limits.h" 20 #include "media/base/limits.h"
21 #include "media/base/video_decoder_config.h" 21 #include "media/base/video_decoder_config.h"
22 #include "media/video/picture.h" 22 #include "media/video/picture.h"
23 #include "ui/gfx/size.h" 23 #include "ui/gfx/size.h"
24 #include "ui/gl/gl_bindings.h" 24 #include "ui/gl/gl_bindings.h"
25 25
26 namespace base { 26 namespace base {
27 class MessageLoopProxy; 27 class MessageLoopProxy;
28 } 28 } // namespace base
29
30 namespace media {
31 class H264Parser;
32 } // namespace media
29 33
30 namespace content { 34 namespace content {
31 class H264Parser;
32
33 // This class handles Exynos video acceleration directly through the V4L2 35 // This class handles Exynos video acceleration directly through the V4L2
34 // device exported by the Multi Format Codec hardware block. 36 // device exported by the Multi Format Codec hardware block.
35 // 37 //
36 // The threading model of this class is driven by the fact that it needs to 38 // The threading model of this class is driven by the fact that it needs to
37 // interface two fundamentally different event queues -- the one Chromium 39 // interface two fundamentally different event queues -- the one Chromium
38 // provides through MessageLoop, and the one driven by the V4L2 devices which 40 // provides through MessageLoop, and the one driven by the V4L2 devices which
39 // is waited on with epoll(). There are three threads involved in this class: 41 // is waited on with epoll(). There are three threads involved in this class:
40 // 42 //
41 // * The child thread, which is the main GPU process thread which calls the 43 // * The child thread, which is the main GPU process thread which calls the
42 // media::VideoDecodeAccelerator entry points. Calls from this thread 44 // media::VideoDecodeAccelerator entry points. Calls from this thread
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342 bool decoder_flushing_; 344 bool decoder_flushing_;
343 // Got a notification from driver that it reached resolution change point 345 // Got a notification from driver that it reached resolution change point
344 // in the stream. 346 // in the stream.
345 bool resolution_change_pending_; 347 bool resolution_change_pending_;
346 // Got a reset request while we were performing resolution change. 348 // Got a reset request while we were performing resolution change.
347 bool resolution_change_reset_pending_; 349 bool resolution_change_reset_pending_;
348 // Input queue for decoder_thread_: BitstreamBuffers in. 350 // Input queue for decoder_thread_: BitstreamBuffers in.
349 std::queue<linked_ptr<BitstreamBufferRef> > decoder_input_queue_; 351 std::queue<linked_ptr<BitstreamBufferRef> > decoder_input_queue_;
350 // For H264 decode, hardware requires that we send it frame-sized chunks. 352 // For H264 decode, hardware requires that we send it frame-sized chunks.
351 // We'll need to parse the stream. 353 // We'll need to parse the stream.
352 scoped_ptr<content::H264Parser> decoder_h264_parser_; 354 scoped_ptr<media::H264Parser> decoder_h264_parser_;
353 // Set if the decoder has a pending incomplete frame in an input buffer. 355 // Set if the decoder has a pending incomplete frame in an input buffer.
354 bool decoder_partial_frame_pending_; 356 bool decoder_partial_frame_pending_;
355 357
356 // 358 //
357 // Hardware state and associated queues. Since decoder_thread_ services 359 // Hardware state and associated queues. Since decoder_thread_ services
358 // the hardware, decoder_thread_ owns these too. 360 // the hardware, decoder_thread_ owns these too.
359 // 361 //
360 362
361 // Completed decode buffers, waiting for MFC. 363 // Completed decode buffers, waiting for MFC.
362 std::queue<int> mfc_input_ready_queue_; 364 std::queue<int> mfc_input_ready_queue_;
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418 420
419 // The codec we'll be decoding for. 421 // The codec we'll be decoding for.
420 media::VideoCodecProfile video_profile_; 422 media::VideoCodecProfile video_profile_;
421 423
422 DISALLOW_COPY_AND_ASSIGN(ExynosVideoDecodeAccelerator); 424 DISALLOW_COPY_AND_ASSIGN(ExynosVideoDecodeAccelerator);
423 }; 425 };
424 426
425 } // namespace content 427 } // namespace content
426 428
427 #endif // CONTENT_COMMON_GPU_MEDIA_EXYNOS_VIDEO_DECODE_ACCELERATOR_H_ 429 #endif // CONTENT_COMMON_GPU_MEDIA_EXYNOS_VIDEO_DECODE_ACCELERATOR_H_
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