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1 // Copyright (c) 2011 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_FILTERS_OMX_VIDEO_DECODER_H_ | |
6 #define MEDIA_FILTERS_OMX_VIDEO_DECODER_H_ | |
7 | |
8 #include <queue> | |
9 | |
10 #include "media/base/filters.h" | |
11 #include "media/base/media_format.h" | |
12 #include "media/base/pts_stream.h" | |
13 #include "media/video/video_decode_context.h" | |
14 #include "media/video/video_decode_engine.h" | |
15 | |
16 class MessageLoop; | |
17 | |
18 namespace media { | |
19 | |
20 class Buffer; | |
21 class OmxVideoDecodeEngine; | |
22 class VideoFrame; | |
23 | |
24 class OmxVideoDecoder : public VideoDecoder, | |
25 public VideoDecodeEngine::EventHandler { | |
26 public: | |
27 OmxVideoDecoder(MessageLoop* message_loop, | |
28 VideoDecodeContext* decode_context); | |
29 virtual ~OmxVideoDecoder(); | |
30 | |
31 // Filter implementations. | |
32 virtual void Initialize(DemuxerStream* stream, | |
33 FilterCallback* callback, | |
34 StatisticsCallback* stats_callback); | |
35 virtual void Stop(FilterCallback* callback); | |
36 virtual void Flush(FilterCallback* callback); | |
37 virtual void Seek(base::TimeDelta time, const FilterStatusCB& cb); | |
38 virtual void ProduceVideoFrame(scoped_refptr<VideoFrame> frame); | |
39 virtual bool ProvidesBuffer(); | |
40 virtual const MediaFormat& media_format(); | |
41 | |
42 private: | |
43 // VideoDecodeEngine::EventHandler interface. | |
44 virtual void OnInitializeComplete(const VideoCodecInfo& info); | |
45 virtual void OnUninitializeComplete(); | |
46 virtual void OnFlushComplete(); | |
47 virtual void OnSeekComplete(); | |
48 virtual void OnError(); | |
49 virtual void OnFormatChange(VideoStreamInfo stream_info); | |
50 virtual void ProduceVideoSample(scoped_refptr<Buffer> buffer); | |
51 virtual void ConsumeVideoFrame(scoped_refptr<VideoFrame> frame, | |
52 const PipelineStatistics& statistics); | |
53 | |
54 // TODO(hclam): This is very ugly that we keep reference instead of | |
55 // scoped_refptr. | |
56 void DemuxCompleteTask(Buffer* buffer); | |
57 void ConsumeVideoSample(scoped_refptr<Buffer> buffer); | |
58 | |
59 MessageLoop* message_loop_; | |
60 | |
61 // Pointer to the demuxer stream that will feed us compressed buffers. | |
62 scoped_refptr<DemuxerStream> demuxer_stream_; | |
63 scoped_ptr<VideoDecodeEngine> decode_engine_; | |
64 scoped_ptr<VideoDecodeContext> decode_context_; | |
65 MediaFormat media_format_; | |
66 | |
67 scoped_ptr<FilterCallback> initialize_callback_; | |
68 scoped_ptr<FilterCallback> uninitialize_callback_; | |
69 scoped_ptr<FilterCallback> flush_callback_; | |
70 FilterStatusCB seek_cb_; | |
71 scoped_ptr<StatisticsCallback> statistics_callback_; | |
72 | |
73 VideoCodecInfo info_; | |
74 | |
75 PtsStream pts_stream_; // Stream of presentation timestamps. | |
76 | |
77 DISALLOW_COPY_AND_ASSIGN(OmxVideoDecoder); | |
78 }; | |
79 | |
80 } // namespace media | |
81 | |
82 #endif // MEDIA_FILTERS_OMX_VIDEO_DECODER_H_ | |
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