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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 CHROME_RENDERER_MEDIA_IPC_VIDEO_DECODER_H_ | |
| 6 #define CHROME_RENDERER_MEDIA_IPC_VIDEO_DECODER_H_ | |
| 7 | |
| 8 #include "base/time.h" | |
| 9 #include "media/base/pts_heap.h" | |
| 10 #include "media/base/video_frame.h" | |
| 11 #include "media/filters/decoder_base.h" | |
| 12 #include "media/video/video_decode_engine.h" | |
| 13 #include "media/video/video_decode_context.h" | |
| 14 | |
| 15 struct AVRational; | |
| 16 | |
| 17 namespace ggl { | |
| 18 class Context; | |
| 19 } // namespace ggl | |
| 20 | |
| 21 class IpcVideoDecoder : public media::VideoDecoder, | |
| 22 public media::VideoDecodeEngine::EventHandler { | |
| 23 public: | |
| 24 IpcVideoDecoder(MessageLoop* message_loop, ggl::Context* ggl_context); | |
| 25 virtual ~IpcVideoDecoder(); | |
| 26 | |
| 27 // media::Filter implementation. | |
| 28 virtual void Stop(media::FilterCallback* callback); | |
| 29 virtual void Seek(base::TimeDelta time, media::FilterCallback* callback); | |
| 30 virtual void Pause(media::FilterCallback* callback); | |
| 31 virtual void Flush(media::FilterCallback* callback); | |
| 32 | |
| 33 // media::VideoDecoder implementation. | |
| 34 virtual void Initialize(media::DemuxerStream* demuxer_stream, | |
| 35 media::FilterCallback* callback, | |
| 36 media::StatisticsCallback* statsCallback); | |
| 37 virtual const media::MediaFormat& media_format(); | |
| 38 virtual void ProduceVideoFrame(scoped_refptr<media::VideoFrame> video_frame); | |
| 39 | |
| 40 // TODO(hclam): Remove this method. | |
| 41 virtual bool ProvidesBuffer(); | |
| 42 | |
| 43 // media::VideoDecodeEngine::EventHandler implementation. | |
| 44 virtual void OnInitializeComplete(const media::VideoCodecInfo& info); | |
| 45 virtual void OnUninitializeComplete(); | |
| 46 virtual void OnFlushComplete(); | |
| 47 virtual void OnSeekComplete(); | |
| 48 virtual void OnError(); | |
| 49 | |
| 50 // TODO(hclam): Remove this method. | |
| 51 virtual void OnFormatChange(media::VideoStreamInfo stream_info) {} | |
| 52 virtual void ProduceVideoSample(scoped_refptr<media::Buffer> buffer); | |
| 53 virtual void ConsumeVideoFrame(scoped_refptr<media::VideoFrame> frame, | |
| 54 const media::PipelineStatistics& statistics); | |
| 55 | |
| 56 private: | |
| 57 void OnReadComplete(media::Buffer* buffer); | |
| 58 void OnDestroyComplete(); | |
| 59 | |
| 60 media::MediaFormat media_format_; | |
| 61 | |
| 62 scoped_ptr<media::FilterCallback> flush_callback_; | |
| 63 scoped_ptr<media::FilterCallback> seek_callback_; | |
| 64 scoped_ptr<media::FilterCallback> initialize_callback_; | |
| 65 scoped_ptr<media::FilterCallback> stop_callback_; | |
| 66 scoped_ptr<media::StatisticsCallback> statistics_callback_; | |
| 67 | |
| 68 // Pointer to the demuxer stream that will feed us compressed buffers. | |
| 69 scoped_refptr<media::DemuxerStream> demuxer_stream_; | |
| 70 | |
| 71 // This is the message loop that we should assign to VideoDecodeContext. | |
| 72 MessageLoop* decode_context_message_loop_; | |
| 73 | |
| 74 // A context for allocating textures and issuing GLES2 commands. | |
| 75 // TODO(hclam): A ggl::Context lives on the Render Thread while this object | |
| 76 // lives on the Video Decoder Thread, we need to take care of context lost | |
| 77 // and destruction of the context. | |
| 78 ggl::Context* ggl_context_; | |
| 79 | |
| 80 // This VideoDecodeEngine translate our requests to IPC commands to the | |
| 81 // GPU process. | |
| 82 // VideoDecodeEngine should run on IO Thread instead of Render Thread to | |
| 83 // avoid dead lock during tear down of the media pipeline. | |
| 84 scoped_ptr<media::VideoDecodeEngine> decode_engine_; | |
| 85 | |
| 86 // Decoding context to be used by VideoDecodeEngine. | |
| 87 scoped_ptr<media::VideoDecodeContext> decode_context_; | |
| 88 | |
| 89 DISALLOW_COPY_AND_ASSIGN(IpcVideoDecoder); | |
| 90 }; | |
| 91 | |
| 92 #endif // CHROME_RENDERER_MEDIA_IPC_VIDEO_DECODER_H_ | |
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