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 CONTENT_RENDERER_MEDIA_WEBSOURCEBUFFER_IMPL_H_ 6 #define CONTENT_RENDERER_MEDIA_WEBSOURCEBUFFER_IMPL_H_ 7 8 #include <string> 9 10 #include "base/basictypes.h" 11 #include "base/compiler_specific.h" 12 #include "base/time/time.h" 13 #include "third_party/WebKit/public/platform/WebSourceBuffer.h" 14 15 namespace media { 16 class ChunkDemuxer; 17 } 18 19 namespace content { 20 21 class WebSourceBufferImpl : public blink::WebSourceBuffer { 22 public: 23 WebSourceBufferImpl(const std::string& id, media::ChunkDemuxer* demuxer); 24 virtual ~WebSourceBufferImpl(); 25 26 // blink::WebSourceBuffer implementation. 27 virtual bool setMode(AppendMode mode); 28 virtual blink::WebTimeRanges buffered(); 29 virtual void append( 30 const unsigned char* data, 31 unsigned length, 32 double* timestamp_offset); 33 virtual void abort(); 34 virtual void remove(double start, double end); 35 virtual bool setTimestampOffset(double offset); 36 virtual void setAppendWindowStart(double start); 37 virtual void setAppendWindowEnd(double end); 38 virtual void removedFromMediaSource(); 39 40 private: 41 std::string id_; 42 media::ChunkDemuxer* demuxer_; // Owned by WebMediaPlayerImpl. 43 44 // Controls the offset applied to timestamps when processing appended media 45 // segments. It is initially 0, which indicates that no offset is being 46 // applied. Both setTimestampOffset() and append() may update this value. 47 base::TimeDelta timestamp_offset_; 48 49 base::TimeDelta append_window_start_; 50 base::TimeDelta append_window_end_; 51 52 DISALLOW_COPY_AND_ASSIGN(WebSourceBufferImpl); 53 }; 54 55 } // namespace content 56 57 #endif // CONTENT_RENDERER_MEDIA_WEBSOURCEBUFFER_IMPL_H_ 58