1 // Copyright 2013 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_BASE_ANDROID_VIDEO_DECODER_JOB_H_ 6 #define MEDIA_BASE_ANDROID_VIDEO_DECODER_JOB_H_ 7 8 #include <jni.h> 9 10 #include "media/base/android/media_decoder_job.h" 11 12 namespace media { 13 14 class VideoCodecBridge; 15 16 // Class for managing video decoding jobs. 17 class VideoDecoderJob : public MediaDecoderJob { 18 public: 19 // Create a new VideoDecoderJob instance. 20 // |request_data_cb| - Callback used to request more data for the decoder. 21 // |request_resources_cb| - Callback used to request resources. 22 // |release_resources_cb| - Callback used to release resources. 23 // |on_demuxer_config_changed_cb| - Callback used to inform the caller that 24 // demuxer config has changed. 25 VideoDecoderJob( 26 const base::Closure& request_data_cb, 27 const base::Closure& request_resources_cb, 28 const base::Closure& release_resources_cb, 29 const base::Closure& on_demuxer_config_changed_cb); 30 virtual ~VideoDecoderJob(); 31 32 // Passes a java surface object to the codec. Returns true if the surface 33 // can be used by the decoder, or false otherwise. 34 bool SetVideoSurface(gfx::ScopedJavaSurface surface); 35 36 // MediaDecoderJob implementation. 37 virtual bool HasStream() const OVERRIDE; 38 virtual void Flush() OVERRIDE; 39 virtual void ReleaseDecoderResources() OVERRIDE; 40 41 bool next_video_data_is_iframe() { 42 return next_video_data_is_iframe_; 43 } 44 45 int width() const { return width_; } 46 int height() const { return height_; } 47 48 private: 49 // MediaDecoderJob implementation. 50 virtual void ReleaseOutputBuffer( 51 int output_buffer_index, 52 size_t size, 53 bool render_output, 54 base::TimeDelta current_presentation_timestamp, 55 const ReleaseOutputCompletionCallback& callback) OVERRIDE; 56 virtual bool ComputeTimeToRender() const OVERRIDE; 57 virtual void UpdateDemuxerConfigs(const DemuxerConfigs& configs) OVERRIDE; 58 virtual bool IsCodecReconfigureNeeded( 59 const DemuxerConfigs& configs) const OVERRIDE; 60 virtual bool AreDemuxerConfigsChanged( 61 const DemuxerConfigs& configs) const OVERRIDE; 62 virtual bool CreateMediaCodecBridgeInternal() OVERRIDE; 63 virtual void CurrentDataConsumed(bool is_config_change) OVERRIDE; 64 virtual void OnMediaCodecBridgeReleased() OVERRIDE; 65 66 // Returns true if a protected surface is required for video playback. 67 bool IsProtectedSurfaceRequired(); 68 69 // Video configs from the demuxer. 70 VideoCodec video_codec_; 71 int width_; 72 int height_; 73 74 // The surface object currently owned by the player. 75 gfx::ScopedJavaSurface surface_; 76 77 // Callbacks to inform the caller about decoder resources change. 78 base::Closure request_resources_cb_; 79 base::Closure release_resources_cb_; 80 81 // Track whether the next access unit is an I-frame. The first access 82 // unit after Flush() and CurrentDataConsumed(true) is guaranteed to be an 83 // I-frame. 84 bool next_video_data_is_iframe_; 85 86 DISALLOW_COPY_AND_ASSIGN(VideoDecoderJob); 87 }; 88 89 } // namespace media 90 91 #endif // MEDIA_BASE_ANDROID_VIDEO_DECODER_JOB_H_ 92
