cinelerra/videodevice.h

   1 #ifndef VIDEODEVICE_H
   2 #define VIDEODEVICE_H
   3
   4 #include "asset.inc"
   5 #include "assets.inc"
   6 #include "audio1394.inc"
   7 #include "audiodevice.inc"
   8 #include "bccapture.inc"
   9 #include "bctimer.h"
  10 #include "canvas.inc"
  11 #include "channel.inc"
  12 #include "device1394output.inc"
  13 #include "edl.inc"
  14 #include "guicast.h"
  15 #include "mwindow.inc"
  16 #include "mutex.inc"
  17 #include "preferences.inc"
  18 #include "recordmonitor.inc"
  19 #include "thread.h"
  20 #include "picture.inc"
  21 #include "vdevicebase.inc"
  22 #include "vdevice1394.inc"
  23 #include "vdevicebuz.inc"
  24 #include "vdevicelml.inc"
  25 #include "vdevicev4l.inc"
  26 #include "vdevicex11.inc"
  27 #include "videoconfig.inc"
  28 #include "videowindow.inc"
  29
  30
  31 // The keepalive thread runs continuously during recording.
  32 // If the recording thread doesn't reset still_alive, failed is incremented.
  33 // Failed is set to 0 if the recording thread resets still_alive.
  34 // It calls goose_input in the VideoDevice.  The input driver should
  35 // trap goose_input and restart itself asynchronous of the recording thread.
  36
  37 // Number of seconds for keepalive to freak out
  38 #define KEEPALIVE_DELAY 0.5
  39
  40 class VideoDevice;
  41
  42 class KeepaliveThread : public Thread
  43 {
  44 public:
  45         KeepaliveThread(VideoDevice *device);
  46         ~KeepaliveThread();
  47
  48         void run();
  49         int reset_keepalive();   // Call after frame capture to reset counter
  50         int get_failed();
  51         int start_keepalive();
  52         int stop();
  53
  54         Timer timer;
  55         int still_alive;
  56         int failed;
  57         int interrupted;
  58         VideoDevice *device;
  59         Mutex *startup_lock;
  60         int capturing;
  61 };
  62
  63 class VideoDevice
  64 {
  65 public:
  66 // MWindow is required where picture settings are used, to get the defaults.
  67         VideoDevice(MWindow *mwindow = 0);
  68         ~VideoDevice();
  69
  70         int close_all();
  71
  72 // ===================================== Recording
  73         int open_input(VideoInConfig *config,
  74                 int input_x,
  75                 int input_y,
  76                 float input_z,
  77                 float frame_rate);
  78
  79
  80
  81 // Return 1 if the data is compressed.
  82 // Called by Record::run to determine if compression option is fixed.
  83 // Called by RecordVideo::rewind_file to determine if FileThread should call
  84 // write_compressed_frames or write_frames.
  85         static int is_compressed(int driver, int use_file, int use_fixed);
  86         int is_compressed(int use_file, int use_fixed);
  87
  88
  89
  90 // Return codec to store on disk if compressed
  91         static char* get_vcodec(int driver);
  92         static char* drivertostr(int driver);
  93 // Get the best colormodel for recording given the file format
  94 // Must be called between open_input and read_buffer
  95         int get_best_colormodel(Asset *asset);
  96
  97 // Specify the audio device opened concurrently with this video device
  98         int set_adevice(AudioDevice *adevice);
  99 // Return 1 if capturing locked up
 100         int get_failed();
 101 // Interrupt a crashed DV device
 102         int interrupt_crash();
 103 // Schedule capture size to be changed.
 104         int set_translation(int input_x, int input_y);
 105 // Change the channel
 106         int set_channel(Channel *channel);
 107 // Set the quality of the JPEG compressor
 108         void set_quality(int quality);
 109 // Change field order
 110         int set_field_order(int odd_field_first);
 111 // Set frames to clear after translation change.
 112         int set_latency_counter(int value);
 113 // Values from -100 to 100
 114         int set_picture(PictureConfig *picture);
 115         int capture_frame(int frame_number);  // Start the frame_number capturing
 116         int read_buffer(VFrame *frame);  // Read the next frame off the device
 117         int has_signal();
 118         int frame_to_vframe(VFrame *frame, unsigned char *input); // Translate the captured frame to a VFrame
 119         int initialize();
 120         ArrayList<Channel*>* get_inputs();
 121 // Create new input source if it doesn't match device_name.
 122 // Otherwise return it.
 123         Channel* new_input_source(char *device_name);
 124         BC_Bitmap* get_bitmap();
 125
 126 // Used by all devices to cause fd's to be not copied in fork operations.
 127         int set_cloexec_flag(int desc, int value);
 128
 129 // ================================== Playback
 130         int open_output(VideoOutConfig *config,
 131                                         float rate,
 132                                         int out_w,
 133                                         int out_h,
 134                                         Canvas *output,
 135                                         int single_frame);
 136         void set_cpus(int cpus);
 137 // Slippery is only used for hardware compression drivers
 138         int start_playback();
 139         int interrupt_playback();
 140 // Get output buffer for playback using colormodel.
 141 // colormodel argument should be as close to best_colormodel as possible
 142         void new_output_buffers(VFrame **outputs, int colormodel);
 143         int wait_for_startup();
 144         int wait_for_completion();
 145         int output_visible();     // Whether the output is visible or not.
 146         int stop_playback();
 147         void goose_input();
 148         long current_position();     // last frame rendered
 149 // absolute frame of last frame in buffer.
 150 // The EDL parameter is passed to Canvas and can be 0.
 151         int write_buffer(VFrame **outputs, EDL *edl);
 152
 153
 154
 155
 156
 157
 158
 159 // Flag when output is interrupted
 160         int interrupt;
 161 // Compression format in use by the output device
 162         int output_format;
 163         int is_playing_back;
 164 // Audio device to share data with
 165         AudioDevice *adevice;
 166 // Reading data from the audio device.  This is set by the video device.
 167         int sharing;
 168 // Synchronize the close devices
 169         int done_sharing;
 170         Mutex *sharing_lock;
 171
 172 // frame rates
 173         float orate, irate;
 174 // timer for displaying frames in the current buffer
 175         Timer buffer_timer;
 176 // timer for getting frame rate
 177         Timer rate_timer;
 178 // size of output frame being fed to device during playback
 179         int out_w, out_h;
 180 // modes
 181         int r, w;
 182 // time from start of previous frame to start of next frame in ms
 183         long frame_delay;
 184 // CPU count for MJPEG compression
 185         int cpus;
 186
 187
 188         int is_recording; // status of thread
 189         float frame_rate; // Frame rate to set in device
 190 // Location of input frame in captured frame
 191         int frame_in_capture_x1, frame_in_capture_x2, frame_in_capture_y1, frame_in_capture_y2;
 192         int capture_in_frame_x1, capture_in_frame_x2, capture_in_frame_y1, capture_in_frame_y2;
 193 // Size of raw captured frame
 194         int capture_w, capture_h;
 195         int input_x, input_y;
 196         float input_z;
 197 // Captured frame size can only be changed when ready
 198         int new_input_x, new_input_y;
 199         float new_input_z;
 200         int frame_resized;
 201 // When the frame is resized, need to clear all the buffer frames.
 202         int latency_counter;
 203         int capturing;
 204         int swap_bytes;
 205
 206
 207 // All the input sources on the device
 208         ArrayList<Channel*> input_sources;
 209         int odd_field_first;
 210 // Quality for the JPEG compressor
 211         int quality;
 212 // Single frame mode for playback
 213         int single_frame;
 214
 215 // Copy of the most recent channel set by set_channel
 216         Channel *channel;
 217 // Flag for subdevice to change channels when it has a chance
 218         int channel_changed;
 219         Mutex *channel_lock;
 220
 221 // Copy of the most recent picture controls
 222         int picture_changed;
 223         PictureConfig *picture;
 224         Mutex *picture_lock;
 225
 226
 227 // Change the capture size when ready
 228         int update_translation();
 229
 230         VDeviceBase *input_base;
 231         VDeviceBase *output_base;
 232         VideoInConfig *in_config;
 233         VideoOutConfig *out_config;
 234         KeepaliveThread *keepalive;
 235         MWindow *mwindow;
 236 };
 237
 238
 239
 240 #endif