1 /* 2 * Copyright (c) 2004-2007 Marcus Overhagen <marcus@overhagen.de> 3 * 4 * Permission is hereby granted, free of charge, to any person 5 * obtaining a copy of this software and associated documentation 6 * files (the "Software"), to deal in the Software without restriction, 7 * including without limitation the rights to use, copy, modify, 8 * merge, publish, distribute, sublicense, and/or sell copies of 9 * the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 17 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 #ifndef __VIDEO_NODE_H_ 25 #define __VIDEO_NODE_H_ 26 27 28 #include <BufferConsumer.h> 29 #include <MediaEventLooper.h> 30 31 class BLocker; 32 class VideoView; 33 34 35 class VideoNode : public BMediaEventLooper, public BBufferConsumer { 36 public: 37 VideoNode(const char *name, VideoView *view); 38 ~VideoNode(); 39 40 void SetOverlayEnabled(bool yesno); 41 bool IsOverlayActive(); 42 43 void LockBitmap(); 44 BBitmap * Bitmap(); 45 void UnlockBitmap(); 46 47 protected: 48 BMediaAddOn * AddOn(int32 *internal_id) const; 49 50 void NodeRegistered(); 51 52 void BufferReceived(BBuffer * buffer); 53 54 status_t GetNextInput(int32 *cookie, media_input *out_input); 55 void DisposeInputCookie(int32 cookie); 56 57 status_t HandleMessage(int32 message, const void *data, size_t size); 58 59 void HandleEvent(const media_timed_event *event, 60 bigtime_t lateness, bool realTimeEvent); 61 62 status_t AcceptFormat(const media_destination &dst, 63 media_format *format); 64 65 void ProducerDataStatus(const media_destination &dst, 66 int32 status, bigtime_t at_media_time); 67 68 status_t GetLatencyFor(const media_destination &dst, 69 bigtime_t *out_latency, media_node_id *out_id); 70 71 status_t Connected(const media_source &src, 72 const media_destination &dst, 73 const media_format &format, media_input *out_input); 74 75 void Disconnected(const media_source &src, 76 const media_destination &dst); 77 78 status_t FormatChanged(const media_source &src, 79 const media_destination &dst, int32 from_change_count, 80 const media_format &format); 81 82 protected: 83 void HandleBuffer(BBuffer *buffer); 84 status_t CreateBuffers(BRect frame, color_space cspace, bool overlay); 85 void DeleteBuffers(); 86 87 protected: 88 VideoView * fVideoView; 89 media_input fInput; 90 bool fOverlayEnabled; 91 bool fOverlayActive; 92 bool fDirectOverlayBuffer; // If the overlay memory is directly written by the producer node. 93 BBitmap * fBitmap; 94 BLocker * fBitmapLocker; 95 }; 96 97 #endif // __VIDEO_NODE_H_ 98