Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / cinelerra / vdevicebuz.h

diff --git a/cinelerra-5.1/cinelerra/vdevicebuz.h b/cinelerra-5.1/cinelerra/vdevicebuz.h
new file mode 100644 (file)
index 0000000..6fe9321
--- /dev/null
+++ b/cinelerra-5.1/cinelerra/vdevicebuz.h
@@ -0,0 +1,129 @@
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef VDEVICEBUZ_H
+#define VDEVICEBUZ_H
+
+#include "buz.h"
+#include "channel.inc"
+#include "condition.inc"
+#include "guicast.h"
+#include "libmjpeg.h"
+#include "mutex.inc"
+#include "thread.h"
+#include "vdevicebase.h"
+#include "vdevicebuz.inc"
+#include "vframe.inc"
+
+
+#define INPUT_BUFFER_SIZE 0x40000
+
+// Let's get real.  The Buz driver doesn't work.  If the buffers overflow
+// for enough time it locks up and can't be recovered except by a
+// SIGINT and restart.  We need to cascade the buffer reading in another
+// ring buffer thread, have it read continuously, and cancel it if it
+// dies.  How about if we do this in SCHED_RR and wait for it to die before
+// implementing cancellation?
+
+
+class VDeviceBUZInput : public Thread
+{
+public:
+       VDeviceBUZInput(VDeviceBUZ *device);
+       ~VDeviceBUZInput();
+       void start();
+       void run();
+       void get_buffer(char **ptr, int *size);
+       void put_buffer();
+       void increment_counter(int *counter);
+       void decrement_counter(int *counter);
+       VDeviceBUZ *device;
+
+       char **buffer;
+       int *buffer_size;
+       int total_buffers;
+       int current_inbuffer;
+       int current_outbuffer;
+       Condition *output_lock;
+       Mutex *buffer_lock;
+       int done;
+};
+
+
+class VDeviceBUZ : public VDeviceBase
+{
+public:
+       VDeviceBUZ(VideoDevice *device);
+       ~VDeviceBUZ();
+
+       friend class VDeviceBUZInput;
+
+       int open_input();
+       int open_output();
+       int close_all();
+       int read_buffer(VFrame *frame);
+       int write_buffer(VFrame *frames, EDL *edl);
+       void reset_parameters();
+       ArrayList<int>* get_render_strategies();
+       int set_channel(Channel *channel);
+       int get_norm(int norm);
+       static void get_inputs(ArrayList<Channel*> *input_sources);
+       int set_picture(PictureConfig *picture);
+       int get_best_colormodel(int colormodel);
+       int create_channeldb(ArrayList<Channel*> *channeldb);
+       void new_output_buffer(VFrame *output, int colormodel);
+
+
+private:
+       int open_input_core(Channel *channel);
+       void close_input_core();
+       int open_output_core(Channel *channel);
+       int close_output_core();
+
+       int jvideo_fd;
+       char *input_buffer, *frame_buffer, *output_buffer;
+       long frame_size, frame_allocated;
+       int input_error;
+       long last_frame_no;
+       ArrayList<int> render_strategies;
+// Temporary frame for compressing output data
+       VFrame *temp_frame;
+// Frame given to user to acquire data
+       VFrame *user_frame;
+       mjpeg_t *mjpeg;
+       Mutex *tuner_lock;
+       VDeviceBUZInput *input_thread;
+
+       struct buz_params bparm;
+       struct buz_requestbuffers breq;
+// Can't CSYNC the first loop
+       int total_loops;
+// Number of output frame to load
+       int output_number;
+
+       int brightness;
+       int hue;
+       int color;
+       int contrast;
+       int whiteness;
+};
+
+#endif