-
-/*
- * 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