781 lines
22 KiB
C++
781 lines
22 KiB
C++
//
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// ZoneMinder Local Camera Class Implementation, $Date$, $Revision$
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// Copyright (C) 2003 Philip Coombes
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/shm.h>
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#include <sys/mman.h>
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#include "zm.h"
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#include "zm_local_camera.h"
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int LocalCamera::camera_count = 0;
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int LocalCamera::m_cap_frame = 0;
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int LocalCamera::m_sync_frame = 0;
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video_mbuf LocalCamera::m_vmb;
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video_mmap *LocalCamera::m_vmm;
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int LocalCamera::m_videohandle;
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unsigned char *LocalCamera::m_buffer=0;
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unsigned char *LocalCamera::y_table;
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signed char *LocalCamera::uv_table;
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short *LocalCamera::r_v_table;
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short *LocalCamera::g_v_table;
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short *LocalCamera::g_u_table;
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short *LocalCamera::b_u_table;
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LocalCamera::LocalCamera( int p_device, int p_channel, int p_format, int p_width, int p_height, int p_palette, bool p_capture ) : Camera( LOCAL, p_width, p_height, p_palette, p_capture ), device( p_device ), channel( p_channel ), format( p_format )
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{
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if ( !camera_count++ && capture )
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{
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Initialise();
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}
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}
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LocalCamera::~LocalCamera()
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{
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if ( !--camera_count && capture )
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{
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Terminate();
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}
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}
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void LocalCamera::Initialise()
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{
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char device_path[64];
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snprintf( device_path, sizeof(device_path), "/dev/video%d", device );
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if ( (m_videohandle=open(device_path, O_RDWR)) < 0 )
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{
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Error(( "Failed to open video device %s: %s", device_path, strerror(errno) ));
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exit(-1);
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}
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struct video_picture vid_pic;
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memset( &vid_pic, 0, sizeof(vid_pic) );
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if ( ioctl( m_videohandle, VIDIOCGPICT, &vid_pic) < 0 )
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{
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Error(( "Failed to get picture attributes: %s", strerror(errno) ));
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exit(-1);
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}
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Debug( 1, ( "Old P:%d", vid_pic.palette ));
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Debug( 1, ( "Old D:%d", vid_pic.depth ));
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Debug( 1, ( "Old B:%d", vid_pic.brightness ));
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Debug( 1, ( "Old h:%d", vid_pic.hue ));
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Debug( 1, ( "Old Cl:%d", vid_pic.colour ));
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Debug( 1, ( "Old Cn:%d", vid_pic.contrast ));
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switch (vid_pic.palette = palette)
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{
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case VIDEO_PALETTE_GREY :
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{
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vid_pic.depth = 8;
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break;
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}
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case VIDEO_PALETTE_RGB565 :
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case VIDEO_PALETTE_YUV420P :
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case VIDEO_PALETTE_YUV422P :
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{
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vid_pic.depth = 16;
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break;
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}
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case VIDEO_PALETTE_RGB24 :
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{
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vid_pic.depth = 24;
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break;
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}
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}
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if ( ioctl( m_videohandle, VIDIOCSPICT, &vid_pic ) < 0 )
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{
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Error(( "Failed to set picture attributes: %s", strerror(errno) ));
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if ( (bool)config.Item( ZM_STRICT_VIDEO_CONFIG ) ) exit(-1);
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}
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struct video_window vid_win;
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memset( &vid_win, 0, sizeof(vid_win) );
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if ( ioctl( m_videohandle, VIDIOCGWIN, &vid_win) < 0 )
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{
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Error(( "Failed to get window attributes: %s", strerror(errno) ));
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exit(-1);
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}
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Debug( 1, ( "Old X:%d", vid_win.x ));
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Debug( 1, ( "Old Y:%d", vid_win.y ));
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Debug( 1, ( "Old W:%d", vid_win.width ));
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Debug( 1, ( "Old H:%d", vid_win.height ));
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vid_win.x = 0;
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vid_win.y = 0;
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vid_win.width = width;
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vid_win.height = height;
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#ifndef HAVE_V4L2
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vid_win.flags &= ~VIDEO_WINDOW_INTERLACE;
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#endif
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if ( ioctl( m_videohandle, VIDIOCSWIN, &vid_win ) < 0 )
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{
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Error(( "Failed to set window attributes: %s", strerror(errno) ));
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if ( (bool)config.Item( ZM_STRICT_VIDEO_CONFIG ) ) exit(-1);
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}
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if ( ioctl(m_videohandle, VIDIOCGMBUF, &m_vmb) < 0 )
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{
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Error(( "Failed to setup memory: %s", strerror(errno) ));
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exit(-1);
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}
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m_vmm = new video_mmap[m_vmb.frames];
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Debug( 1, ( "vmb.frames = %d", m_vmb.frames ));
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Debug( 1, ( "vmb.size = %d", m_vmb.size ));
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for ( int i=0; i < m_vmb.frames; i++)
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{
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m_vmm[i].frame = i;
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m_vmm[i].width = width;
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m_vmm[i].height = height;
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m_vmm[i].format = palette;
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}
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m_buffer = (unsigned char *)mmap( 0, m_vmb.size, PROT_READ|PROT_WRITE, MAP_SHARED, m_videohandle, 0 );
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if ( m_buffer == MAP_FAILED )
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{
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Error(( "Could not mmap video: %s", strerror(errno) ));
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exit(-1);
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}
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struct video_channel vid_src;
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memset( &vid_src, 0, sizeof(vid_src) );
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vid_src.channel = channel;
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if ( ioctl( m_videohandle, VIDIOCGCHAN, &vid_src) < 0 )
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{
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Error(( "Failed to get camera source: %s", strerror(errno) ));
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exit(-1);
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}
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Debug( 1, ( "Old C:%d", vid_src.channel ));
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Debug( 1, ( "Old F:%d", vid_src.norm ));
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Debug( 1, ( "Old Fl:%x", vid_src.flags ));
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Debug( 1, ( "Old T:%d", vid_src.type ));
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vid_src.norm = format;
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vid_src.flags = 0;
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vid_src.type = VIDEO_TYPE_CAMERA;
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if ( ioctl( m_videohandle, VIDIOCSCHAN, &vid_src) < 0 )
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{
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Error(( "Failed to set camera source %d: %s", channel, strerror(errno) ));
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if ( (bool)config.Item( ZM_STRICT_VIDEO_CONFIG ) ) exit(-1);
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}
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if ( ioctl( m_videohandle, VIDIOCGWIN, &vid_win) < 0 )
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{
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Error(( "Failed to get window data: %s", strerror(errno) ));
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exit(-1);
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}
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Debug( 1, ( "New X:%d", vid_win.x ));
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Debug( 1, ( "New Y:%d", vid_win.y ));
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Debug( 1, ( "New W:%d", vid_win.width ));
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Debug( 1, ( "New H:%d", vid_win.height ));
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if ( ioctl( m_videohandle, VIDIOCGPICT, &vid_pic) < 0 )
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{
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Error(( "Failed to get window data: %s", strerror(errno) ));
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exit(-1);
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}
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Debug( 1, ( "New P:%d", vid_pic.palette ));
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Debug( 1, ( "New D:%d", vid_pic.depth ));
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Debug( 1, ( "New B:%d", vid_pic.brightness ));
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Debug( 1, ( "New h:%d", vid_pic.hue ));
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Debug( 1, ( "New Cl:%d", vid_pic.colour ));
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Debug( 1, ( "New Cn:%d", vid_pic.contrast ));
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y_table = new unsigned char[256];
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for ( int i = 0; i <= 255; i++ )
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{
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unsigned char c = i;
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if ( c <= 16 )
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y_table[c] = 0;
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else if ( c >= 235 )
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y_table[c] = 255;
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else
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y_table[c] = (255*(c-16))/219;
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}
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uv_table = new signed char[256];
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for ( int i = 0; i <= 255; i++ )
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{
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unsigned char c = i;
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if ( c <= 16 )
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uv_table[c] = -127;
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else if ( c >= 240 )
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uv_table[c] = 127;
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else
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uv_table[c] = (127*(c-128))/112;
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}
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r_v_table = new short[255];
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g_v_table = new short[255];
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g_u_table = new short[255];
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b_u_table = new short[255];
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r_v_table += 128;
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g_v_table += 128;
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g_u_table += 128;
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b_u_table += 128;
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for ( int i = -127; i <= 127; i++ )
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{
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signed char c = i;
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r_v_table[c] = (1402*c)/1000;
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g_u_table[c] = (344*c)/1000;
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g_v_table[c] = (714*c)/1000;
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b_u_table[c] = (1772*c)/1000;
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}
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}
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void LocalCamera::Terminate()
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{
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munmap((char*)m_buffer, m_vmb.size);
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delete[] m_vmm;
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close(m_videohandle);
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}
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bool LocalCamera::GetCurrentSettings( int device, char *output, bool verbose )
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{
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char device_path[64];
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output[0] = 0;
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snprintf( device_path, sizeof(device_path), "/dev/video%d", device );
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if ( verbose )
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sprintf( output, output+strlen(output), "Checking Video Device: %s\n", device_path );
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if ( (m_videohandle=open(device_path, O_RDWR)) <=0 )
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{
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Error(( "Failed to open video device %s: %s", device_path, strerror(errno) ));
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if ( verbose )
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sprintf( output+strlen(output), "Error, failed to open video device: %s\n", strerror(errno) );
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else
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sprintf( output+strlen(output), "error%d\n", errno );
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return( false );
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}
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struct video_capability vid_cap;
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if ( ioctl( m_videohandle, VIDIOCGCAP, &vid_cap ) < 0 )
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{
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Error(( "Failed to get video capabilities: %s", strerror(errno) ));
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if ( verbose )
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sprintf( output, "Error, failed to get video capabilities: %s\n", strerror(errno) );
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else
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sprintf( output, "error%d\n", errno );
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return( false );
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}
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if ( verbose )
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{
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sprintf( output+strlen(output), "Video Capabilities\n" );
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sprintf( output+strlen(output), " Name: %s\n", vid_cap.name );
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sprintf( output+strlen(output), " Type: %d\n%s%s%s%s%s%s%s%s%s%s%s%s%s%s", vid_cap.type,
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vid_cap.type&VID_TYPE_CAPTURE?" Can capture\n":"",
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vid_cap.type&VID_TYPE_TUNER?" Can tune\n":"",
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vid_cap.type&VID_TYPE_TELETEXT?" Does teletext\n":"",
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vid_cap.type&VID_TYPE_OVERLAY?" Overlay onto frame buffer\n":"",
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vid_cap.type&VID_TYPE_CHROMAKEY?" Overlay by chromakey\n":"",
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vid_cap.type&VID_TYPE_CLIPPING?" Can clip\n":"",
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vid_cap.type&VID_TYPE_FRAMERAM?" Uses the frame buffer memory\n":"",
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vid_cap.type&VID_TYPE_SCALES?" Scalable\n":"",
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vid_cap.type&VID_TYPE_MONOCHROME?" Monochrome only\n":"",
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vid_cap.type&VID_TYPE_SUBCAPTURE?" Can capture subareas of the image\n":"",
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vid_cap.type&VID_TYPE_MPEG_DECODER?" Can decode MPEG streams\n":"",
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vid_cap.type&VID_TYPE_MPEG_ENCODER?" Can encode MPEG streams\n":"",
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vid_cap.type&VID_TYPE_MJPEG_DECODER?" Can decode MJPEG streams\n":"",
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vid_cap.type&VID_TYPE_MJPEG_ENCODER?" Can encode MJPEG streams\n":""
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);
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sprintf( output+strlen(output), " Video Channels: %d\n", vid_cap.channels );
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sprintf( output+strlen(output), " Audio Channels: %d\n", vid_cap.audios );
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sprintf( output+strlen(output), " Maximum Width: %d\n", vid_cap.maxwidth );
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sprintf( output+strlen(output), " Maximum Height: %d\n", vid_cap.maxheight );
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sprintf( output+strlen(output), " Minimum Width: %d\n", vid_cap.minwidth );
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sprintf( output+strlen(output), " Minimum Height: %d\n", vid_cap.minheight );
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}
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else
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{
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sprintf( output+strlen(output), "N:%s,", vid_cap.name );
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sprintf( output+strlen(output), "T:%d,", vid_cap.type );
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sprintf( output+strlen(output), "nC:%d,", vid_cap.channels );
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sprintf( output+strlen(output), "nA:%d,", vid_cap.audios );
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sprintf( output+strlen(output), "mxW:%d,", vid_cap.maxwidth );
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sprintf( output+strlen(output), "mxH:%d,", vid_cap.maxheight );
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sprintf( output+strlen(output), "mnW:%d,", vid_cap.minwidth );
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sprintf( output+strlen(output), "mnH:%d,", vid_cap.minheight );
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}
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struct video_window vid_win;
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if ( ioctl( m_videohandle, VIDIOCGWIN, &vid_win ) < 0 )
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{
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Error(( "Failed to get window attributes: %s", strerror(errno) ));
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if ( verbose )
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sprintf( output, "Error, failed to get window attributes: %s\n", strerror(errno) );
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else
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sprintf( output, "error%d\n", errno );
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return( false );
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}
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if ( verbose )
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{
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sprintf( output+strlen(output), "Window Attributes\n" );
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sprintf( output+strlen(output), " X Offset: %d\n", vid_win.x );
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sprintf( output+strlen(output), " Y Offset: %d\n", vid_win.y );
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sprintf( output+strlen(output), " Width: %d\n", vid_win.width );
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sprintf( output+strlen(output), " Height: %d\n", vid_win.height );
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}
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else
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{
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sprintf( output+strlen(output), "X:%d,", vid_win.x );
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sprintf( output+strlen(output), "Y:%d,", vid_win.y );
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sprintf( output+strlen(output), "W:%d,", vid_win.width );
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sprintf( output+strlen(output), "H:%d,", vid_win.height );
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}
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struct video_picture vid_pic;
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if ( ioctl( m_videohandle, VIDIOCGPICT, &vid_pic ) < 0 )
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{
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Error(( "Failed to get picture attributes: %s", strerror(errno) ));
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if ( verbose )
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sprintf( output, "Error, failed to get picture attributes: %s\n", strerror(errno) );
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else
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sprintf( output, "error%d\n", errno );
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return( false );
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}
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if ( verbose )
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{
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sprintf( output+strlen(output), "Picture Attributes\n" );
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sprintf( output+strlen(output), " Palette: %d - %s\n", vid_pic.palette,
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vid_pic.palette==VIDEO_PALETTE_GREY?"Linear greyscale":(
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vid_pic.palette==VIDEO_PALETTE_HI240?"High 240 cube (BT848)":(
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vid_pic.palette==VIDEO_PALETTE_RGB565?"565 16 bit RGB":(
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vid_pic.palette==VIDEO_PALETTE_RGB24?"24bit RGB":(
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vid_pic.palette==VIDEO_PALETTE_RGB32?"32bit RGB":(
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vid_pic.palette==VIDEO_PALETTE_RGB555?"555 15bit RGB":(
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vid_pic.palette==VIDEO_PALETTE_YUV422?"YUV422 capture":(
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vid_pic.palette==VIDEO_PALETTE_YUYV?"YUYV":(
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vid_pic.palette==VIDEO_PALETTE_UYVY?"UVYV":(
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vid_pic.palette==VIDEO_PALETTE_YUV420?"YUV420":(
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vid_pic.palette==VIDEO_PALETTE_YUV411?"YUV411 capture":(
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vid_pic.palette==VIDEO_PALETTE_RAW?"RAW capture (BT848)":(
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vid_pic.palette==VIDEO_PALETTE_YUV422P?"YUV 4:2:2 Planar":(
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vid_pic.palette==VIDEO_PALETTE_YUV411P?"YUV 4:1:1 Planar":(
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vid_pic.palette==VIDEO_PALETTE_YUV420P?"YUV 4:2:0 Planar":(
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vid_pic.palette==VIDEO_PALETTE_YUV410P?"YUV 4:1:0 Planar":"Unknown"
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))))))))))))))));
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sprintf( output+strlen(output), " Colour Depth: %d\n", vid_pic.depth );
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sprintf( output+strlen(output), " Brightness: %d\n", vid_pic.brightness );
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sprintf( output+strlen(output), " Hue: %d\n", vid_pic.hue );
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sprintf( output+strlen(output), " Colour :%d\n", vid_pic.colour );
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sprintf( output+strlen(output), " Contrast: %d\n", vid_pic.contrast );
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sprintf( output+strlen(output), " Whiteness: %d\n", vid_pic.whiteness );
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}
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else
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{
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sprintf( output+strlen(output), "P:%d,", vid_pic.palette );
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sprintf( output+strlen(output), "D:%d,", vid_pic.depth );
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sprintf( output+strlen(output), "B:%d,", vid_pic.brightness );
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sprintf( output+strlen(output), "h:%d,", vid_pic.hue );
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sprintf( output+strlen(output), "Cl:%d,", vid_pic.colour );
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sprintf( output+strlen(output), "Cn:%d,", vid_pic.contrast );
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sprintf( output+strlen(output), "w:%d,", vid_pic.whiteness );
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}
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for ( int chan = 0; chan < vid_cap.channels; chan++ )
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{
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struct video_channel vid_src;
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vid_src.channel = chan;
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if ( ioctl( m_videohandle, VIDIOCGCHAN, &vid_src ) < 0 )
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{
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Error(( "Failed to get channel %d attributes: %s", chan, strerror(errno) ));
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if ( verbose )
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sprintf( output, "Error, failed to get channel %d attributes: %s\n", chan, strerror(errno) );
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else
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sprintf( output, "error%d\n", errno );
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return( false );
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}
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if ( verbose )
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{
|
|
sprintf( output+strlen(output), "Channel %d Attributes\n", chan );
|
|
sprintf( output+strlen(output), " Name: %s\n", vid_src.name );
|
|
sprintf( output+strlen(output), " Channel: %d\n", vid_src.channel );
|
|
sprintf( output+strlen(output), " Flags: %d\n%s%s", vid_src.flags,
|
|
vid_src.flags&VIDEO_VC_TUNER?" Channel has a tuner\n":"",
|
|
vid_src.flags&VIDEO_VC_AUDIO?" Channel has audio\n":""
|
|
);
|
|
sprintf( output+strlen(output), " Type: %d - %s\n", vid_src.type,
|
|
vid_src.type==VIDEO_TYPE_TV?"TV":(
|
|
vid_src.type==VIDEO_TYPE_CAMERA?"Camera":"Unknown"
|
|
));
|
|
sprintf( output+strlen(output), " Format: %d - %s\n", vid_src.norm,
|
|
vid_src.norm==VIDEO_MODE_PAL?"PAL":(
|
|
vid_src.norm==VIDEO_MODE_NTSC?"NTSC":(
|
|
vid_src.norm==VIDEO_MODE_SECAM?"SECAM":(
|
|
vid_src.norm==VIDEO_MODE_AUTO?"AUTO":"Unknown"
|
|
))));
|
|
}
|
|
else
|
|
{
|
|
sprintf( output+strlen(output), "n%d:%s,", chan, vid_src.name );
|
|
sprintf( output+strlen(output), "C%d:%d,", chan, vid_src.channel );
|
|
sprintf( output+strlen(output), "Fl%d:%x,", chan, vid_src.flags );
|
|
sprintf( output+strlen(output), "T%d:%d", chan, vid_src.type );
|
|
sprintf( output+strlen(output), "F%d:%d%s,", chan, vid_src.norm, chan==(vid_cap.channels-1)?"":"," );
|
|
}
|
|
}
|
|
return( true );
|
|
}
|
|
|
|
int LocalCamera::Brightness( int p_brightness )
|
|
{
|
|
struct video_picture vid_pic;
|
|
if ( ioctl( m_videohandle, VIDIOCGPICT, &vid_pic) < 0 )
|
|
{
|
|
Error(( "Failed to get picture attributes: %s", strerror(errno) ));
|
|
return( -1 );
|
|
}
|
|
|
|
if ( p_brightness >= 0 )
|
|
{
|
|
vid_pic.brightness = p_brightness;
|
|
if ( ioctl( m_videohandle, VIDIOCSPICT, &vid_pic ) < 0 )
|
|
{
|
|
Error(( "Failed to set picture attributes: %s", strerror(errno) ));
|
|
return( -1 );
|
|
}
|
|
}
|
|
return( vid_pic.brightness );
|
|
}
|
|
|
|
int LocalCamera::Hue( int p_hue )
|
|
{
|
|
struct video_picture vid_pic;
|
|
if ( ioctl( m_videohandle, VIDIOCGPICT, &vid_pic) < 0 )
|
|
{
|
|
Error(( "Failed to get picture attributes: %s", strerror(errno) ));
|
|
return( -1 );
|
|
}
|
|
|
|
if ( p_hue >= 0 )
|
|
{
|
|
vid_pic.hue = p_hue;
|
|
if ( ioctl( m_videohandle, VIDIOCSPICT, &vid_pic ) < 0 )
|
|
{
|
|
Error(( "Failed to set picture attributes: %s", strerror(errno) ));
|
|
return( -1 );
|
|
}
|
|
}
|
|
return( vid_pic.hue );
|
|
}
|
|
|
|
int LocalCamera::Colour( int p_colour )
|
|
{
|
|
struct video_picture vid_pic;
|
|
if ( ioctl( m_videohandle, VIDIOCGPICT, &vid_pic) < 0 )
|
|
{
|
|
Error(( "Failed to get picture attributes: %s", strerror(errno) ));
|
|
return( -1 );
|
|
}
|
|
|
|
if ( p_colour >= 0 )
|
|
{
|
|
vid_pic.colour = p_colour;
|
|
if ( ioctl( m_videohandle, VIDIOCSPICT, &vid_pic ) < 0 )
|
|
{
|
|
Error(( "Failed to set picture attributes: %s", strerror(errno) ));
|
|
return( -1 );
|
|
}
|
|
}
|
|
return( vid_pic.colour );
|
|
}
|
|
|
|
int LocalCamera::Contrast( int p_contrast )
|
|
{
|
|
struct video_picture vid_pic;
|
|
if ( ioctl( m_videohandle, VIDIOCGPICT, &vid_pic) < 0 )
|
|
{
|
|
Error(( "Failed to get picture attributes: %s", strerror(errno) ));
|
|
return( -1 );
|
|
}
|
|
|
|
if ( p_contrast >= 0 )
|
|
{
|
|
vid_pic.contrast = p_contrast;
|
|
if ( ioctl( m_videohandle, VIDIOCSPICT, &vid_pic ) < 0 )
|
|
{
|
|
Error(( "Failed to set picture attributes: %s", strerror(errno) ));
|
|
return( -1 );
|
|
}
|
|
}
|
|
return( vid_pic.contrast );
|
|
}
|
|
|
|
int LocalCamera::PreCapture()
|
|
{
|
|
//Info(( "%s: Capturing image", id ));
|
|
|
|
if ( camera_count > 1 )
|
|
{
|
|
//Info(( "Switching" ));
|
|
struct video_channel vid_src;
|
|
|
|
vid_src.channel = channel;
|
|
vid_src.norm = format;
|
|
vid_src.flags = 0;
|
|
vid_src.type = VIDEO_TYPE_CAMERA;
|
|
if ( ioctl( m_videohandle, VIDIOCSCHAN, &vid_src ) < 0 )
|
|
{
|
|
Error(( "Failed to set camera source %d: %s", channel, strerror(errno) ));
|
|
return( -1 );
|
|
}
|
|
}
|
|
if ( ioctl( m_videohandle, VIDIOCMCAPTURE, &m_vmm[m_cap_frame] ) < 0 )
|
|
{
|
|
Error(( "Capture failure for frame %d: %s", m_cap_frame, strerror(errno)));
|
|
return( -1 );
|
|
}
|
|
m_cap_frame = (m_cap_frame+1)%m_vmb.frames;
|
|
return( 0 );
|
|
}
|
|
|
|
int LocalCamera::PostCapture( Image &image )
|
|
{
|
|
//Info(( "%s: Capturing image", id ));
|
|
|
|
if ( ioctl( m_videohandle, VIDIOCSYNC, &m_sync_frame ) )
|
|
{
|
|
Error(( "Sync failure for frame %d: %s", m_sync_frame, strerror(errno)));
|
|
return( -1 );
|
|
}
|
|
|
|
unsigned char *buffer = m_buffer+(m_sync_frame*m_vmb.size/m_vmb.frames);
|
|
m_sync_frame = (m_sync_frame+1)%m_vmb.frames;
|
|
|
|
static unsigned char temp_buffer[ZM_MAX_IMAGE_SIZE];
|
|
switch( palette )
|
|
{
|
|
case VIDEO_PALETTE_YUV420P :
|
|
{
|
|
static unsigned char y_plane[ZM_MAX_IMAGE_DIM];
|
|
static char u_plane[ZM_MAX_IMAGE_DIM];
|
|
static char v_plane[ZM_MAX_IMAGE_DIM];
|
|
|
|
unsigned char *rgb_ptr = temp_buffer;
|
|
unsigned char *y_ptr = y_plane;
|
|
char *u1_ptr = u_plane;
|
|
char *u2_ptr = u_plane+width;
|
|
char *v1_ptr = v_plane;
|
|
char *v2_ptr = v_plane+width;
|
|
|
|
int Y_size = width*height;
|
|
int C_size = Y_size>>2; // Every little bit helps...
|
|
unsigned char *Y_ptr = buffer;
|
|
unsigned char *Cb_ptr = buffer + Y_size;
|
|
unsigned char *Cr_ptr = Cb_ptr + C_size;
|
|
|
|
int y,u,v;
|
|
for ( int i = 0; i < Y_size; i++ )
|
|
{
|
|
*y_ptr++ = y_table[*Y_ptr++];
|
|
}
|
|
int half_width = width>>1; // We are the king of optimisations!
|
|
for ( int i = 0, j = 0; i < C_size; i++, j++ )
|
|
{
|
|
if ( j == half_width )
|
|
{
|
|
j = 0;
|
|
u1_ptr += width;
|
|
u2_ptr += width;
|
|
v1_ptr += width;
|
|
v2_ptr += width;
|
|
}
|
|
u = uv_table[*Cb_ptr++];
|
|
|
|
*u1_ptr++ = u;
|
|
*u1_ptr++ = u;
|
|
*u2_ptr++ = u;
|
|
*u2_ptr++ = u;
|
|
|
|
v = uv_table[*Cr_ptr++];
|
|
|
|
*v1_ptr++ = v;
|
|
*v1_ptr++ = v;
|
|
*v2_ptr++ = v;
|
|
*v2_ptr++ = v;
|
|
}
|
|
|
|
y_ptr = y_plane;
|
|
u1_ptr = u_plane;
|
|
v1_ptr = v_plane;
|
|
int size = Y_size*3;
|
|
int r,g,b;
|
|
for ( int i = 0; i < size; i += 3 )
|
|
{
|
|
y = *y_ptr++;
|
|
u = *u1_ptr++;
|
|
v = *v1_ptr++;
|
|
|
|
r = y + r_v_table[v];
|
|
g = y - (g_u_table[u]+g_v_table[v]);
|
|
b = y + b_u_table[u];
|
|
|
|
*rgb_ptr++ = r<0?0:(r>255?255:r);
|
|
*rgb_ptr++ = g<0?0:(g>255?255:g);
|
|
*rgb_ptr++ = b<0?0:(b>255?255:b);
|
|
}
|
|
buffer = temp_buffer;
|
|
break;
|
|
}
|
|
case VIDEO_PALETTE_YUV422P :
|
|
{
|
|
static unsigned char y_plane[ZM_MAX_IMAGE_DIM];
|
|
static char u_plane[ZM_MAX_IMAGE_DIM];
|
|
static char v_plane[ZM_MAX_IMAGE_DIM];
|
|
|
|
unsigned char *rgb_ptr = temp_buffer;
|
|
unsigned char *y_ptr = y_plane;
|
|
char *u1_ptr = u_plane;
|
|
char *v1_ptr = v_plane;
|
|
|
|
int Y_size = width*height;
|
|
int C_size = Y_size>>1; // Every little bit helps...
|
|
unsigned char *Y_ptr = buffer;
|
|
unsigned char *Cb_ptr = buffer + Y_size;
|
|
unsigned char *Cr_ptr = Cb_ptr + C_size;
|
|
|
|
int y,u,v;
|
|
for ( int i = 0; i < Y_size; i++ )
|
|
{
|
|
*y_ptr++ = y_table[*Y_ptr++];
|
|
}
|
|
for ( int i = 0, j = 0; i < C_size; i++, j++ )
|
|
{
|
|
u = uv_table[*Cb_ptr++];
|
|
|
|
*u1_ptr++ = u;
|
|
*u1_ptr++ = u;
|
|
|
|
v = uv_table[*Cr_ptr++];
|
|
|
|
*v1_ptr++ = v;
|
|
*v1_ptr++ = v;
|
|
}
|
|
|
|
y_ptr = y_plane;
|
|
u1_ptr = u_plane;
|
|
v1_ptr = v_plane;
|
|
int size = Y_size*3;
|
|
int r,g,b;
|
|
for ( int i = 0; i < size; i += 3 )
|
|
{
|
|
y = *y_ptr++;
|
|
u = *u1_ptr++;
|
|
v = *v1_ptr++;
|
|
|
|
r = y + r_v_table[v];
|
|
g = y - (g_u_table[u]+g_v_table[v]);
|
|
b = y + b_u_table[u];
|
|
|
|
*rgb_ptr++ = r<0?0:(r>255?255:r);
|
|
*rgb_ptr++ = g<0?0:(g>255?255:g);
|
|
*rgb_ptr++ = b<0?0:(b>255?255:b);
|
|
}
|
|
buffer = temp_buffer;
|
|
break;
|
|
}
|
|
case VIDEO_PALETTE_RGB555 :
|
|
{
|
|
int size = width*height*2;
|
|
unsigned char r,g,b;
|
|
unsigned char *s_ptr = buffer;
|
|
unsigned char *d_ptr = temp_buffer;
|
|
for ( int i = 0; i < size; i += 2 )
|
|
{
|
|
b = ((*s_ptr)<<3)&0xf8;
|
|
g = (((*(s_ptr+1))<<6)|((*s_ptr)>>2))&0xf8;
|
|
r = ((*(s_ptr+1))<<1)&0xf8;
|
|
|
|
*d_ptr++ = r;
|
|
*d_ptr++ = g;
|
|
*d_ptr++ = b;
|
|
s_ptr += 2;
|
|
}
|
|
buffer = temp_buffer;
|
|
break;
|
|
}
|
|
case VIDEO_PALETTE_RGB565 :
|
|
{
|
|
int size = width*height*2;
|
|
unsigned char r,g,b;
|
|
unsigned char *s_ptr = buffer;
|
|
unsigned char *d_ptr = temp_buffer;
|
|
for ( int i = 0; i < size; i += 2 )
|
|
{
|
|
b = ((*s_ptr)<<3)&0xf8;
|
|
g = (((*(s_ptr+1))<<5)|((*s_ptr)>>3))&0xfc;
|
|
r = (*(s_ptr+1))&0xf8;
|
|
|
|
*d_ptr++ = r;
|
|
*d_ptr++ = g;
|
|
*d_ptr++ = b;
|
|
s_ptr += 2;
|
|
}
|
|
buffer = temp_buffer;
|
|
break;
|
|
}
|
|
case VIDEO_PALETTE_RGB24 :
|
|
{
|
|
if ( (bool)config.Item( ZM_LOCAL_BGR_INVERT ) )
|
|
{
|
|
int size = width*height*3;
|
|
unsigned char *s_ptr = buffer;
|
|
unsigned char *d_ptr = temp_buffer;
|
|
for ( int i = 0; i < size; i += 3 )
|
|
{
|
|
*d_ptr++ = *(s_ptr+2);
|
|
*d_ptr++ = *(s_ptr+1);
|
|
*d_ptr++ = *s_ptr;
|
|
s_ptr += 3;
|
|
}
|
|
buffer = temp_buffer;
|
|
}
|
|
break;
|
|
}
|
|
case VIDEO_PALETTE_GREY :
|
|
{
|
|
//int size = width*height;
|
|
//for ( int i = 0; i < size; i++ )
|
|
//{
|
|
//if ( buffer[i] < 16 )
|
|
//Info(( "Lo grey %d", buffer[i] ));
|
|
//if ( buffer[i] > 235 )
|
|
//Info(( "Hi grey %d", buffer[i] ));
|
|
//}
|
|
}
|
|
default : // Everything else is straightforward, for now.
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
image.Assign( width, height, colours, buffer );
|
|
|
|
return( 0 );
|
|
}
|