cinelerra-5.0/cinelerra/vdevicelml.h

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #ifndef VDEVICELML_H
  23 #define VDEVICELML_H
  24
  25 #include "guicast.h"
  26 #include "vdevicebase.h"
  27
  28 // ./quicktime
  29 #include "jpeg.h"
  30 #include "quicktime.h"
  31
  32 #define INPUT_BUFFER_SIZE 65536
  33
  34 class VDeviceLML : public VDeviceBase
  35 {
  36 public:
  37         VDeviceLML(VideoDevice *device);
  38         ~VDeviceLML();
  39
  40         int open_input();
  41         int open_output();
  42         int close_all();
  43         int read_buffer(VFrame *frame);
  44         int write_buffer(VFrame *frame, EDL *edl);
  45         int reset_parameters();
  46         ArrayList<int>* get_render_strategies();
  47
  48 private:
  49         int reopen_input();
  50
  51         inline unsigned char get_byte()
  52         {
  53                 if(!input_buffer) input_buffer = new unsigned char[INPUT_BUFFER_SIZE];
  54                 if(input_position >= INPUT_BUFFER_SIZE) refill_input();
  55                 return input_buffer[input_position++];
  56         };
  57
  58         inline unsigned long next_bytes(int total)
  59         {
  60                 unsigned long result = 0;
  61                 int i;
  62
  63                 if(!input_buffer) input_buffer = new unsigned char[INPUT_BUFFER_SIZE];
  64                 if(input_position + total > INPUT_BUFFER_SIZE) refill_input();
  65
  66                 for(i = 0; i < total; i++)
  67                 {
  68                         result <<= 8;
  69                         result |= input_buffer[input_position + i];
  70                 }
  71                 return result;
  72         };
  73
  74         int refill_input();
  75         inline int write_byte(unsigned char byte)
  76         {
  77                 if(!frame_buffer)
  78                 {
  79                         frame_buffer = new unsigned char[256000];
  80                         frame_allocated = 256000;
  81                 }
  82
  83                 if(frame_size >= frame_allocated)
  84                 {
  85                         unsigned char *new_frame = new unsigned char[frame_allocated * 2];
  86                         memcpy(new_frame, frame_buffer, frame_size);
  87                         delete frame_buffer;
  88                         frame_buffer = new_frame;
  89                         frame_allocated *= 2;
  90                 }
  91
  92                 frame_buffer[frame_size++] = byte;
  93                 return 0;
  94         };
  95
  96         int write_fake_marker();
  97
  98         FILE *jvideo_fd;
  99         unsigned char *input_buffer, *frame_buffer;
 100         long input_position;
 101         long frame_size, frame_allocated;
 102         int input_error;
 103 //      quicktime_mjpeg_hdr jpeg_header;
 104         long last_frame_no;
 105         ArrayList<int> render_strategies;
 106 };
 107
 108 #endif