1 /* 2 * Copyright 2007, Haiku. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 * 5 * Authors: 6 * Stephan Aßmus <superstippi@gmx.de> 7 */ 8 #ifndef VIDEO_TRACK_SUPPLIER_H 9 #define VIDEO_TRACK_SUPPLIER_H 10 11 12 #include <MediaDefs.h> 13 #include <MediaFormats.h> 14 15 class VideoTrackSupplier { 16 public: 17 VideoTrackSupplier(); 18 virtual ~VideoTrackSupplier(); 19 20 virtual const media_format& Format() const = 0; 21 virtual status_t GetEncodedFormat(media_format* format) 22 const = 0; 23 virtual status_t GetCodecInfo(media_codec_info* info) const = 0; 24 virtual status_t ReadFrame(void* buffer, 25 bigtime_t* performanceTime, 26 const media_format* format, 27 bool& wasCached) = 0; 28 virtual status_t SeekToTime(bigtime_t* performanceTime) = 0; 29 virtual status_t SeekToFrame(int64* frame) = 0; 30 31 virtual bigtime_t Position() const = 0; 32 virtual bigtime_t Duration() const = 0; 33 virtual int64 CurrentFrame() const = 0; 34 35 virtual int32 TrackIndex() const = 0; 36 }; 37 38 #endif // VIDEO_TRACK_SUPPLIER_H 39