branches/nyatla/src.utils/jmf/jp/nyatla/nyartoolkit/jmf/utils/JmfCameraCapture.java

   1 /* \r
   2  * PROJECT: NyARToolkit JMF utilities.\r
   3  * --------------------------------------------------------------------------------\r
   4  * The MIT License\r
   5  * Copyright (c) 2008 nyatla\r
   6  * airmail(at)ebony.plala.or.jp\r
   7  * http://nyatla.jp/nyartoolkit/\r
   8  * \r
   9  * Permission is hereby granted, free of charge, to any person obtaining a copy\r
  10  * of this software and associated documentation files (the "Software"), to deal\r
  11  * in the Software without restriction, including without limitation the rights\r
  12  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\r
  13  * copies of the Software, and to permit persons to whom the Software is\r
  14  * furnished to do so, subject to the following conditions:\r
  15  * The above copyright notice and this permission notice shall be included in\r
  16  * all copies or substantial portions of the Software.\r
  17  * \r
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\r
  21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\r
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\r
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\r
  24  * THE SOFTWARE.\r
  25  * \r
  26  */\r
  27 package jp.nyatla.nyartoolkit.jmf.utils;\r
  28 \r
  29 import javax.media.*;\r
  30 import javax.media.protocol.*;\r
  31 import javax.media.control.*;\r
  32 import javax.media.format.*;\r
  33 import java.awt.*;\r
  34 import java.util.*;\r
  35 import javax.media.protocol.DataSource;\r
  36 \r
  37 import jp.nyatla.nyartoolkit.NyARException;\r
  38 /**\r
  39  * 簡易JMFキャプチャクラス\r
  40  * @author atla\r
  41  *\r
  42  */\r
  43 public class JmfCameraCapture\r
  44 {\r
  45         private Dimension image_size;\r
  46 \r
  47         private JmfCaptureListener capture_listener;\r
  48 \r
  49         // private DataSource jmf_data_source;\r
  50         private MonitorStream jmf_monitor_stream;\r
  51 \r
  52         private Processor jmf_processor;\r
  53 \r
  54         private VideoFormat jmf_video_format;\r
  55 \r
  56         private Buffer read_buf = new Buffer();\r
  57 \r
  58         public static final String PIXEL_FORMAT_RGB = "RGB";\r
  59 \r
  60         public JmfCameraCapture(int i_width, int i_height, float i_rate, String i_pixcel_format)\r
  61         {\r
  62                 String encoding = i_pixcel_format;// comboEncoding.getSelectedItem();\r
  63                 image_size = new Dimension(i_width, i_height);\r
  64                 jmf_video_format = new VideoFormat(encoding, image_size, Format.NOT_SPECIFIED, null, i_rate);\r
  65         }\r
  66 \r
  67         public Dimension getSize()\r
  68         {\r
  69                 return image_size;\r
  70         }\r
  71 \r
  72         public javax.media.Buffer readBuffer() throws NyARException\r
  73         {\r
  74                 if (jmf_monitor_stream == null) {\r
  75                         throw new NyARException();\r
  76                 }\r
  77                 try {\r
  78                         jmf_monitor_stream.read(read_buf);\r
  79                 } catch (Exception e) {\r
  80                         throw new NyARException(e);\r
  81                 }\r
  82                 return read_buf;\r
  83         }\r
  84 \r
  85         public void setCaptureListener(JmfCaptureListener i_listener) throws NyARException\r
  86         {\r
  87                 if (jmf_processor != null) {\r
  88                         throw new NyARException();\r
  89                 }\r
  90                 capture_listener = i_listener;\r
  91 \r
  92         }\r
  93 \r
  94         public void start() throws NyARException\r
  95         {\r
  96 \r
  97                 DataSource ds = getCaptureDS(jmf_video_format);\r
  98                 VideoFormat[] formats = new VideoFormat[] { new VideoFormat(null) };\r
  99                 ProcessorModel pm = new ProcessorModel(ds, formats, null);// ,\r
 100                 // formats,\r
 101                 // ftd);\r
 102                 Processor processor;\r
 103                 try {\r
 104                         processor = Manager.createRealizedProcessor(pm);\r
 105                 } catch (Exception e) {\r
 106                         // Make sure the capture devices are released\r
 107                         ds.disconnect();\r
 108                         throw new NyARException(e);\r
 109                 }\r
 110                 // Get the monitor control:\r
 111                 // Since there are more than one MonitorControl objects\r
 112                 // exported by the DataSource, we get the specific one\r
 113                 // that is also the MonitorStream object.\r
 114                 jmf_monitor_stream = (MonitorStream) ds.getControl("jmfsample.MonitorStream");\r
 115                 jmf_monitor_stream.setCaptureListener(capture_listener);\r
 116                 // jmf_data_source=ds;\r
 117                 jmf_processor = processor;\r
 118                 jmf_processor.start();\r
 119         }\r
 120 \r
 121         public void stop()\r
 122         {\r
 123                 jmf_processor.stop();\r
 124                 jmf_processor.close();\r
 125                 jmf_processor = null;\r
 126 \r
 127         }\r
 128 \r
 129         protected void finalize()\r
 130         {\r
 131                 if (jmf_processor != null) {\r
 132                         jmf_processor.stop();\r
 133                         jmf_processor.close();\r
 134                         jmf_processor = null;\r
 135                 }\r
 136         }\r
 137 \r
 138         private static DataSource getCaptureDS(VideoFormat vf)\r
 139         {\r
 140                 DataSource dsVideo = null;\r
 141                 DataSource ds = null;\r
 142 \r
 143                 // Create a capture DataSource for the video\r
 144                 // If there is no video capture device, then exit with null\r
 145                 if (vf != null) {\r
 146                         dsVideo = createDataSource(vf);\r
 147                         if (dsVideo == null)\r
 148                                 return null;\r
 149                 }\r
 150 \r
 151                 // Create the monitoring datasource wrapper\r
 152                 if (dsVideo != null) {\r
 153                         dsVideo = new MonitorCDS(dsVideo);\r
 154                         return dsVideo;\r
 155                 }\r
 156 \r
 157                 // Merge the data sources, if both audio and video are available\r
 158                 try {\r
 159                         ds = Manager.createMergingDataSource(new DataSource[] { dsVideo });\r
 160                 } catch (IncompatibleSourceException ise) {\r
 161                         return null;\r
 162                 }\r
 163 \r
 164                 return ds;\r
 165         }\r
 166 \r
 167         private static DataSource createDataSource(Format format)\r
 168         {\r
 169                 DataSource ds;\r
 170                 Vector devices;\r
 171                 CaptureDeviceInfo cdi;\r
 172                 MediaLocator ml;\r
 173 \r
 174                 // Find devices for format\r
 175                 devices = CaptureDeviceManager.getDeviceList(format);\r
 176                 if (devices.size() < 1) {\r
 177                         System.err.println("! No Devices for " + format);\r
 178                         return null;\r
 179                 }\r
 180                 // Pick the first device\r
 181                 cdi = (CaptureDeviceInfo) devices.elementAt(0);\r
 182 \r
 183                 ml = cdi.getLocator();\r
 184 \r
 185                 try {\r
 186                         ds = Manager.createDataSource(ml);\r
 187                         ds.connect();\r
 188                         if (ds instanceof CaptureDevice) {\r
 189                                 setCaptureFormat((CaptureDevice) ds, format);\r
 190                         }\r
 191                 } catch (Exception e) {\r
 192                         System.err.println(e);\r
 193                         return null;\r
 194                 }\r
 195                 return ds;\r
 196         }\r
 197 \r
 198         private static void setCaptureFormat(CaptureDevice cdev, Format format)\r
 199         {\r
 200                 FormatControl[] fcs = cdev.getFormatControls();\r
 201                 if (fcs.length < 1) {\r
 202                         return;\r
 203                 }\r
 204                 FormatControl fc = fcs[0];\r
 205                 Format[] formats = fc.getSupportedFormats();\r
 206                 for (int i = 0; i < formats.length; i++) {\r
 207                         if (formats[i].matches(format)) {\r
 208                                 format = formats[i].intersects(format);\r
 209                                 fc.setFormat(format);\r
 210                                 break;\r
 211                         }\r
 212                 }\r
 213         }\r
 214 }