实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
//
// ZoneMinder Local Camera Class Implementation, $Date$, $Revision$
// Copyright (C) 2001-2008 Philip Coombes
//
// 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.
//
#include "zm.h"
#if ZM_HAS_V4L
#include "zm_local_camera.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
#include <errno.h>
#include <stdlib.h>
#include <limits.h>
static unsigned int BigEndian;
static int vidioctl( int fd, int request, void *arg )
{
int result = -1;
do
{
result = ioctl( fd, request, arg );
} while ( result == -1 && errno == EINTR );
return( result );
}
#if HAVE_LIBSWSCALE
static PixelFormat getFfPixFormatFromV4lPalette( int v4l_version, int palette )
{
PixelFormat pixFormat = PIX_FMT_NONE;
#if ZM_HAS_V4L2
if ( v4l_version == 2 )
{
switch( palette )
{
#ifdef V4L2_PIX_FMT_RGB444
case V4L2_PIX_FMT_RGB444 :
pixFormat = PIX_FMT_RGB444;
break;
#endif // V4L2_PIX_FMT_RGB444
case V4L2_PIX_FMT_RGB555 :
pixFormat = PIX_FMT_RGB555;
break;
case V4L2_PIX_FMT_RGB565 :
pixFormat = PIX_FMT_RGB565;
break;
case V4L2_PIX_FMT_BGR24 :
pixFormat = PIX_FMT_BGR24;
break;
case V4L2_PIX_FMT_RGB24 :
pixFormat = PIX_FMT_RGB24;
break;
case V4L2_PIX_FMT_BGR32 :
pixFormat = PIX_FMT_BGRA;
break;
case V4L2_PIX_FMT_RGB32 :
pixFormat = PIX_FMT_ARGB;
break;
case V4L2_PIX_FMT_GREY :
pixFormat = PIX_FMT_GRAY8;
break;
case V4L2_PIX_FMT_YUYV :
pixFormat = PIX_FMT_YUYV422;
break;
case V4L2_PIX_FMT_YUV422P :
pixFormat = PIX_FMT_YUV422P;
break;
case V4L2_PIX_FMT_YUV411P :
pixFormat = PIX_FMT_YUV411P;
break;
#ifdef V4L2_PIX_FMT_YUV444
case V4L2_PIX_FMT_YUV444 :
pixFormat = PIX_FMT_YUV444P;
break;
#endif // V4L2_PIX_FMT_YUV444
case V4L2_PIX_FMT_YUV410 :
pixFormat = PIX_FMT_YUV410P;
break;
case V4L2_PIX_FMT_YUV420 :
pixFormat = PIX_FMT_YUV420P;
break;
case V4L2_PIX_FMT_JPEG :
case V4L2_PIX_FMT_MJPEG :
pixFormat = PIX_FMT_YUVJ444P;
break;
case V4L2_PIX_FMT_UYVY :
pixFormat = PIX_FMT_UYVY422;
break;
// These don't seem to have ffmpeg equivalents
// See if you can match any of the ones in the default clause below!?
case V4L2_PIX_FMT_RGB332 :
case V4L2_PIX_FMT_RGB555X :
case V4L2_PIX_FMT_RGB565X :
//case V4L2_PIX_FMT_Y16 :
//case V4L2_PIX_FMT_PAL8 :
case V4L2_PIX_FMT_YVU410 :
case V4L2_PIX_FMT_YVU420 :
case V4L2_PIX_FMT_Y41P :
//case V4L2_PIX_FMT_YUV555 :
//case V4L2_PIX_FMT_YUV565 :
//case V4L2_PIX_FMT_YUV32 :
case V4L2_PIX_FMT_NV12 :
case V4L2_PIX_FMT_NV21 :
case V4L2_PIX_FMT_YYUV :
case V4L2_PIX_FMT_HI240 :
case V4L2_PIX_FMT_HM12 :
//case V4L2_PIX_FMT_SBGGR8 :
//case V4L2_PIX_FMT_SGBRG8 :
//case V4L2_PIX_FMT_SBGGR16 :
case V4L2_PIX_FMT_DV :
case V4L2_PIX_FMT_MPEG :
case V4L2_PIX_FMT_WNVA :
case V4L2_PIX_FMT_SN9C10X :
case V4L2_PIX_FMT_PWC1 :
case V4L2_PIX_FMT_PWC2 :
case V4L2_PIX_FMT_ET61X251 :
//case V4L2_PIX_FMT_SPCA501 :
//case V4L2_PIX_FMT_SPCA505 :
//case V4L2_PIX_FMT_SPCA508 :
//case V4L2_PIX_FMT_SPCA561 :
//case V4L2_PIX_FMT_PAC207 :
//case V4L2_PIX_FMT_PJPG :
//case V4L2_PIX_FMT_YVYU :
default :
{
Fatal( "Can't find swscale format for palette %d", palette );
break;
// These are all spare and may match some of the above
pixFormat = PIX_FMT_YUVJ420P;
pixFormat = PIX_FMT_YUVJ422P;
pixFormat = PIX_FMT_XVMC_MPEG2_MC;
pixFormat = PIX_FMT_XVMC_MPEG2_IDCT;
pixFormat = PIX_FMT_UYVY422;
pixFormat = PIX_FMT_UYYVYY411;
pixFormat = PIX_FMT_BGR565;
pixFormat = PIX_FMT_BGR555;
pixFormat = PIX_FMT_BGR8;
pixFormat = PIX_FMT_BGR4;
pixFormat = PIX_FMT_BGR4_BYTE;
pixFormat = PIX_FMT_RGB8;
pixFormat = PIX_FMT_RGB4;
pixFormat = PIX_FMT_RGB4_BYTE;
pixFormat = PIX_FMT_NV12;
pixFormat = PIX_FMT_NV21;
pixFormat = PIX_FMT_RGB32_1;
pixFormat = PIX_FMT_BGR32_1;
pixFormat = PIX_FMT_GRAY16BE;
pixFormat = PIX_FMT_GRAY16LE;
pixFormat = PIX_FMT_YUV440P;
pixFormat = PIX_FMT_YUVJ440P;
pixFormat = PIX_FMT_YUVA420P;
//pixFormat = PIX_FMT_VDPAU_H264;
//pixFormat = PIX_FMT_VDPAU_MPEG1;
//pixFormat = PIX_FMT_VDPAU_MPEG2;
}
}
}
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( v4l_version == 1 )
{
switch( palette )
{
case VIDEO_PALETTE_RGB32 :
if(BigEndian)
pixFormat = PIX_FMT_ARGB;
else
pixFormat = PIX_FMT_BGRA;
break;
case VIDEO_PALETTE_RGB24 :
if(BigEndian)
pixFormat = PIX_FMT_RGB24;
else
pixFormat = PIX_FMT_BGR24;
break;
case VIDEO_PALETTE_GREY :
pixFormat = PIX_FMT_GRAY8;
break;
case VIDEO_PALETTE_RGB555 :
pixFormat = PIX_FMT_RGB555;
break;
case VIDEO_PALETTE_RGB565 :
pixFormat = PIX_FMT_RGB565;
break;
case VIDEO_PALETTE_YUYV :
case VIDEO_PALETTE_YUV422 :
pixFormat = PIX_FMT_YUYV422;
break;
case VIDEO_PALETTE_YUV422P :
pixFormat = PIX_FMT_YUV422P;
break;
case VIDEO_PALETTE_YUV420P :
pixFormat = PIX_FMT_YUV420P;
break;
default :
{
Fatal( "Can't find swscale format for palette %d", palette );
break;
// These are all spare and may match some of the above
pixFormat = PIX_FMT_YUVJ420P;
pixFormat = PIX_FMT_YUVJ422P;
pixFormat = PIX_FMT_YUVJ444P;
pixFormat = PIX_FMT_XVMC_MPEG2_MC;
pixFormat = PIX_FMT_XVMC_MPEG2_IDCT;
pixFormat = PIX_FMT_UYVY422;
pixFormat = PIX_FMT_UYYVYY411;
pixFormat = PIX_FMT_BGR565;
pixFormat = PIX_FMT_BGR555;
pixFormat = PIX_FMT_BGR8;
pixFormat = PIX_FMT_BGR4;
pixFormat = PIX_FMT_BGR4_BYTE;
pixFormat = PIX_FMT_RGB8;
pixFormat = PIX_FMT_RGB4;
pixFormat = PIX_FMT_RGB4_BYTE;
pixFormat = PIX_FMT_NV12;
pixFormat = PIX_FMT_NV21;
pixFormat = PIX_FMT_RGB32_1;
pixFormat = PIX_FMT_BGR32_1;
pixFormat = PIX_FMT_GRAY16BE;
pixFormat = PIX_FMT_GRAY16LE;
pixFormat = PIX_FMT_YUV440P;
pixFormat = PIX_FMT_YUVJ440P;
pixFormat = PIX_FMT_YUVA420P;
//pixFormat = PIX_FMT_VDPAU_H264;
//pixFormat = PIX_FMT_VDPAU_MPEG1;
//pixFormat = PIX_FMT_VDPAU_MPEG2;
}
}
}
#endif // ZM_HAS_V4L1
return( pixFormat );
}
#endif // HAVE_LIBSWSCALE
#if ZM_HAS_V4L2
static char palette_desc[32];
/* Automatic format selection prefered formats */
static const uint32_t prefered_rgb32_formats[] = {V4L2_PIX_FMT_BGR32, V4L2_PIX_FMT_RGB32, V4L2_PIX_FMT_BGR24, V4L2_PIX_FMT_RGB24, V4L2_PIX_FMT_YUYV, V4L2_PIX_FMT_UYVY, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_MJPEG, V4L2_PIX_FMT_YUV422P, V4L2_PIX_FMT_YUV420};
static const uint32_t prefered_rgb24_formats[] = {V4L2_PIX_FMT_BGR24, V4L2_PIX_FMT_RGB24, V4L2_PIX_FMT_YUYV, V4L2_PIX_FMT_UYVY, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_MJPEG, V4L2_PIX_FMT_YUV422P, V4L2_PIX_FMT_YUV420};
static const uint32_t prefered_gray8_formats[] = {V4L2_PIX_FMT_GREY, V4L2_PIX_FMT_YUYV, V4L2_PIX_FMT_UYVY, V4L2_PIX_FMT_JPEG, V4L2_PIX_FMT_MJPEG, V4L2_PIX_FMT_YUV422P, V4L2_PIX_FMT_YUV420};
#endif
int LocalCamera::camera_count = 0;
int LocalCamera::channel_count = 0;
int LocalCamera::channels[VIDEO_MAX_FRAME];
int LocalCamera::standards[VIDEO_MAX_FRAME];
int LocalCamera::vid_fd = -1;
int LocalCamera::v4l_version = 0;
#if ZM_HAS_V4L2
LocalCamera::V4L2Data LocalCamera::v4l2_data;
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
LocalCamera::V4L1Data LocalCamera::v4l1_data;
#endif // ZM_HAS_V4L1
#if HAVE_LIBSWSCALE
AVFrame **LocalCamera::capturePictures = 0;
#endif // HAVE_LIBSWSCALE
LocalCamera *LocalCamera::last_camera = NULL;
LocalCamera::LocalCamera( int p_id, const std::string &p_device, int p_channel, int p_standard, const std::string &p_method, int p_width, int p_height, int p_colours, int p_palette, int p_brightness, int p_contrast, int p_hue, int p_colour, bool p_capture, unsigned int p_extras) :
Camera( p_id, LOCAL_SRC, p_width, p_height, p_colours, ZM_SUBPIX_ORDER_DEFAULT_FOR_COLOUR(p_colours), p_brightness, p_contrast, p_hue, p_colour, p_capture ),
device( p_device ),
channel( p_channel ),
standard( p_standard ),
palette( p_palette ),
channel_index( 0 ),
extras ( p_extras )
{
// If we are the first, or only, input on this device then
// do the initial opening etc
device_prime = (camera_count == 0);
v4l_version = (p_method=="v4l2"?2:1);
if ( capture )
{
if ( device_prime )
{
Debug( 2, "V4L support enabled, using V4L%d api", v4l_version );
}
if ( !last_camera || channel != last_camera->channel )
{
// We are the first, or only, input that uses this channel
channel_prime = true;
channel_index = channel_count ;
channels[channel_index] = channel;
standards[channel_index] = standard;
}
else
{
// We are the second, or subsequent, input using this channel
channel_prime = false;
}
}
/* The V4L1 API doesn't care about endianness, we need to check the endianness of the machine */
uint32_t checkval = 0xAABBCCDD;
if(*(unsigned char*)&checkval == 0xDD) {
BigEndian = 0;
Debug(2,"little-endian processor detected");
} else if(*(unsigned char*)&checkval == 0xAA) {
BigEndian = 1;
Debug(2,"Big-endian processor detected");
} else {
Error("Unable to detect the processor's endianness. Assuming little-endian.");
BigEndian = 0;
}
#if ZM_HAS_V4L2
if( v4l_version == 2 && palette == 0 ) {
/* Use automatic format selection */
Debug(2,"Using automatic format selection");
palette = AutoSelectFormat(colours);
if(palette == 0) {
Error("Automatic format selection failed. Falling back to YUYV");
palette = V4L2_PIX_FMT_YUYV;
} else {
if(capture) {
Info("Selected capture palette: %s (%c%c%c%c)", palette_desc, palette&0xff, (palette>>8)&0xff, (palette>>16)&0xff, (palette>>24)&0xff);
}
}
}
#endif
if( capture ) {
if ( last_camera ) {
if ( (p_method == "v4l2" && v4l_version != 2) || (p_method == "v4l1" && v4l_version != 1) )
Fatal( "Different Video For Linux version used for monitors sharing same device" );
if ( standard != last_camera->standard )
Warning( "Different video standards defined for monitors sharing same device, results may be unpredictable or completely wrong" );
if ( palette != last_camera->palette )
Warning( "Different video palettes defined for monitors sharing same device, results may be unpredictable or completely wrong" );
if ( width != last_camera->width || height != last_camera->height )
Warning( "Different capture sizes defined for monitors sharing same device, results may be unpredictable or completely wrong" );
}
}
#if HAVE_LIBSWSCALE
if( capture ) {
/* Get ffmpeg pixel format based on capture palette and endianness */
capturePixFormat = getFfPixFormatFromV4lPalette( v4l_version, palette );
imagePixFormat = PIX_FMT_NONE;
}
#endif // HAVE_LIBSWSCALE
/* V4L2 format matching */
#if ZM_HAS_V4L2
if ( v4l_version == 2 ) {
/* Try to find a match for the selected palette and target colourspace */
/* RGB32 palette and 32bit target colourspace */
if(palette == V4L2_PIX_FMT_RGB32 && colours == ZM_COLOUR_RGB32) {
conversion_type = 0;
subpixelorder = ZM_SUBPIX_ORDER_ARGB;
/* BGR32 palette and 32bit target colourspace */
} else if(palette == V4L2_PIX_FMT_BGR32 && colours == ZM_COLOUR_RGB32) {
conversion_type = 0;
subpixelorder = ZM_SUBPIX_ORDER_BGRA;
/* RGB24 palette and 24bit target colourspace */
} else if(palette == V4L2_PIX_FMT_RGB24 && colours == ZM_COLOUR_RGB24) {
conversion_type = 0;
subpixelorder = ZM_SUBPIX_ORDER_RGB;
/* BGR24 palette and 24bit target colourspace */
} else if(palette == V4L2_PIX_FMT_BGR24 && colours == ZM_COLOUR_RGB24) {
conversion_type = 0;
subpixelorder = ZM_SUBPIX_ORDER_BGR;
/* Grayscale palette and grayscale target colourspace */
} else if(palette == V4L2_PIX_FMT_GREY && colours == ZM_COLOUR_GRAY8) {
conversion_type = 0;
subpixelorder = ZM_SUBPIX_ORDER_NONE;
/* Unable to find a solution for the selected palette and target colourspace. Conversion required. Notify the user of performance penalty */
} else {
if( capture )
Info("No direct match for the selected palette and target colorspace. Format conversion is required, performance penalty expected");
#if HAVE_LIBSWSCALE
/* Try using swscale for the conversion */
conversion_type = 1;
Debug(2,"Using swscale for image conversion");
if(colours == ZM_COLOUR_RGB32) {
subpixelorder = ZM_SUBPIX_ORDER_RGBA;
imagePixFormat = PIX_FMT_RGBA;
} else if(colours == ZM_COLOUR_RGB24) {
subpixelorder = ZM_SUBPIX_ORDER_RGB;
imagePixFormat = PIX_FMT_RGB24;
} else if(colours == ZM_COLOUR_GRAY8) {
subpixelorder = ZM_SUBPIX_ORDER_NONE;
imagePixFormat = PIX_FMT_GRAY8;
} else {
Panic("Unexpected colours: %d",colours);
}
if( capture ) {
if(!sws_isSupportedInput(capturePixFormat)) {
Error("swscale does not support the used capture format: %c%c%c%c",(capturePixFormat)&0xff,((capturePixFormat>>8)&0xff),((capturePixFormat>>16)&0xff),((capturePixFormat>>24)&0xff));
conversion_type = 2; /* Try ZM format conversions */
}
if(!sws_isSupportedOutput(imagePixFormat)) {
Error("swscale does not support the target format: %c%c%c%c",(imagePixFormat)&0xff,((imagePixFormat>>8)&0xff),((imagePixFormat>>16)&0xff),((imagePixFormat>>24)&0xff));
conversion_type = 2; /* Try ZM format conversions */
}
}
#else
/* Don't have swscale, see what we can do */
conversion_type = 2;
#endif
/* Our YUYV->Grayscale conversion is a lot faster than swscale's */
if(colours == ZM_COLOUR_GRAY8 && palette == V4L2_PIX_FMT_YUYV) {
conversion_type = 2;
}
/* JPEG */
if(palette == V4L2_PIX_FMT_JPEG || palette == V4L2_PIX_FMT_MJPEG) {
Debug(2,"Using JPEG image decoding");
conversion_type = 3;
}
if(conversion_type == 2) {
Debug(2,"Using ZM for image conversion");
if(palette == V4L2_PIX_FMT_RGB32 && colours == ZM_COLOUR_GRAY8) {
conversion_fptr = &std_convert_argb_gray8;
subpixelorder = ZM_SUBPIX_ORDER_NONE;
} else if(palette == V4L2_PIX_FMT_BGR32 && colours == ZM_COLOUR_GRAY8) {
conversion_fptr = &std_convert_bgra_gray8;
subpixelorder = ZM_SUBPIX_ORDER_NONE;
} else if(palette == V4L2_PIX_FMT_YUYV && colours == ZM_COLOUR_GRAY8) {
/* Fast YUYV->Grayscale conversion by extracting the Y channel */
if(config.cpu_extensions && sseversion >= 35) {
conversion_fptr = &ssse3_convert_yuyv_gray8;
Debug(2,"Using SSSE3 YUYV->grayscale fast conversion");
} else {
conversion_fptr = &std_convert_yuyv_gray8;
Debug(2,"Using standard YUYV->grayscale fast conversion");
}
subpixelorder = ZM_SUBPIX_ORDER_NONE;
} else if(palette == V4L2_PIX_FMT_YUYV && colours == ZM_COLOUR_RGB24) {
conversion_fptr = &zm_convert_yuyv_rgb;
subpixelorder = ZM_SUBPIX_ORDER_RGB;
} else if(palette == V4L2_PIX_FMT_YUYV && colours == ZM_COLOUR_RGB32) {
conversion_fptr = &zm_convert_yuyv_rgba;
subpixelorder = ZM_SUBPIX_ORDER_RGBA;
} else if(palette == V4L2_PIX_FMT_RGB555 && colours == ZM_COLOUR_RGB24) {
conversion_fptr = &zm_convert_rgb555_rgb;
subpixelorder = ZM_SUBPIX_ORDER_RGB;
} else if(palette == V4L2_PIX_FMT_RGB555 && colours == ZM_COLOUR_RGB32) {
conversion_fptr = &zm_convert_rgb555_rgba;
subpixelorder = ZM_SUBPIX_ORDER_RGBA;
} else if(palette == V4L2_PIX_FMT_RGB565 && colours == ZM_COLOUR_RGB24) {
conversion_fptr = &zm_convert_rgb565_rgb;
subpixelorder = ZM_SUBPIX_ORDER_RGB;
} else if(palette == V4L2_PIX_FMT_RGB565 && colours == ZM_COLOUR_RGB32) {
conversion_fptr = &zm_convert_rgb565_rgba;
subpixelorder = ZM_SUBPIX_ORDER_RGBA;
} else {
Fatal("Unable to find a suitable format conversion for the selected palette and target colorspace.");
}
}
}
}
#endif // ZM_HAS_V4L2
/* V4L1 format matching */
#if ZM_HAS_V4L1
if ( v4l_version == 1) {
/* Try to find a match for the selected palette and target colourspace */
/* RGB32 palette and 32bit target colourspace */
if(palette == VIDEO_PALETTE_RGB32 && colours == ZM_COLOUR_RGB32) {
conversion_type = 0;
if(BigEndian) {
subpixelorder = ZM_SUBPIX_ORDER_ARGB;
} else {
subpixelorder = ZM_SUBPIX_ORDER_BGRA;
}
/* RGB24 palette and 24bit target colourspace */
} else if(palette == VIDEO_PALETTE_RGB24 && colours == ZM_COLOUR_RGB24) {
conversion_type = 0;
if(BigEndian) {
subpixelorder = ZM_SUBPIX_ORDER_RGB;
} else {
subpixelorder = ZM_SUBPIX_ORDER_BGR;
}
/* Grayscale palette and grayscale target colourspace */
} else if(palette == VIDEO_PALETTE_GREY && colours == ZM_COLOUR_GRAY8) {
conversion_type = 0;
subpixelorder = ZM_SUBPIX_ORDER_NONE;
/* Unable to find a solution for the selected palette and target colourspace. Conversion required. Notify the user of performance penalty */
} else {
if( capture )
Info("No direct match for the selected palette and target colorspace. Format conversion is required, performance penalty expected");
#if HAVE_LIBSWSCALE
/* Try using swscale for the conversion */
conversion_type = 1;
Debug(2,"Using swscale for image conversion");
if(colours == ZM_COLOUR_RGB32) {
subpixelorder = ZM_SUBPIX_ORDER_RGBA;
imagePixFormat = PIX_FMT_RGBA;
} else if(colours == ZM_COLOUR_RGB24) {
subpixelorder = ZM_SUBPIX_ORDER_RGB;
imagePixFormat = PIX_FMT_RGB24;
} else if(colours == ZM_COLOUR_GRAY8) {
subpixelorder = ZM_SUBPIX_ORDER_NONE;
imagePixFormat = PIX_FMT_GRAY8;
} else {
Panic("Unexpected colours: %d",colours);
}
if( capture ) {
if(!sws_isSupportedInput(capturePixFormat)) {
Error("swscale does not support the used capture format");
conversion_type = 2; /* Try ZM format conversions */
}
if(!sws_isSupportedOutput(imagePixFormat)) {
Error("swscale does not support the target format");
conversion_type = 2; /* Try ZM format conversions */
}
}
#else
/* Don't have swscale, see what we can do */
conversion_type = 2;
#endif
/* Our YUYV->Grayscale conversion is a lot faster than swscale's */
if(colours == ZM_COLOUR_GRAY8 && (palette == VIDEO_PALETTE_YUYV || palette == VIDEO_PALETTE_YUV422)) {
conversion_type = 2;
}
if(conversion_type == 2) {
Debug(2,"Using ZM for image conversion");
if(palette == VIDEO_PALETTE_RGB32 && colours == ZM_COLOUR_GRAY8) {
if(BigEndian) {
conversion_fptr = &std_convert_argb_gray8;
subpixelorder = ZM_SUBPIX_ORDER_NONE;
} else {
conversion_fptr = &std_convert_bgra_gray8;
subpixelorder = ZM_SUBPIX_ORDER_NONE;
}
} else if((palette == VIDEO_PALETTE_YUYV || palette == VIDEO_PALETTE_YUV422) && colours == ZM_COLOUR_GRAY8) {
/* Fast YUYV->Grayscale conversion by extracting the Y channel */
if(config.cpu_extensions && sseversion >= 35) {
conversion_fptr = &ssse3_convert_yuyv_gray8;
Debug(2,"Using SSSE3 YUYV->grayscale fast conversion");
} else {
conversion_fptr = &std_convert_yuyv_gray8;
Debug(2,"Using standard YUYV->grayscale fast conversion");
}
subpixelorder = ZM_SUBPIX_ORDER_NONE;
} else if((palette == VIDEO_PALETTE_YUYV || palette == VIDEO_PALETTE_YUV422) && colours == ZM_COLOUR_RGB24) {
conversion_fptr = &zm_convert_yuyv_rgb;
subpixelorder = ZM_SUBPIX_ORDER_RGB;
} else if((palette == VIDEO_PALETTE_YUYV || palette == VIDEO_PALETTE_YUV422) && colours == ZM_COLOUR_RGB32) {
conversion_fptr = &zm_convert_yuyv_rgba;
subpixelorder = ZM_SUBPIX_ORDER_RGBA;
} else if(palette == VIDEO_PALETTE_RGB555 && colours == ZM_COLOUR_RGB24) {
conversion_fptr = &zm_convert_rgb555_rgb;
subpixelorder = ZM_SUBPIX_ORDER_RGB;
} else if(palette == VIDEO_PALETTE_RGB555 && colours == ZM_COLOUR_RGB32) {
conversion_fptr = &zm_convert_rgb555_rgba;
subpixelorder = ZM_SUBPIX_ORDER_RGBA;
} else if(palette == VIDEO_PALETTE_RGB565 && colours == ZM_COLOUR_RGB24) {
conversion_fptr = &zm_convert_rgb565_rgb;
subpixelorder = ZM_SUBPIX_ORDER_RGB;
} else if(palette == VIDEO_PALETTE_RGB565 && colours == ZM_COLOUR_RGB32) {
conversion_fptr = &zm_convert_rgb565_rgba;
subpixelorder = ZM_SUBPIX_ORDER_RGBA;
} else {
Fatal("Unable to find a suitable format conversion for the selected palette and target colorspace.");
}
}
}
}
#endif // ZM_HAS_V4L1
last_camera = this;
Debug(3,"Selected subpixelorder: %d",subpixelorder);
#if HAVE_LIBSWSCALE
/* Initialize swscale stuff */
if(capture && conversion_type == 1) {
tmpPicture = avcodec_alloc_frame();
if ( !tmpPicture )
Fatal( "Could not allocate temporary picture" );
int pSize = avpicture_get_size( imagePixFormat, width, height );
if( (unsigned int)pSize != imagesize) {
Fatal("Image size mismatch. Required: %d Available: %d",pSize,imagesize);
}
if(config.cpu_extensions && sseversion >= 20) {
imgConversionContext = sws_getContext(width, height, capturePixFormat, width, height, imagePixFormat, SWS_BICUBIC | SWS_CPU_CAPS_SSE2, NULL, NULL, NULL );
} else {
imgConversionContext = sws_getContext(width, height, capturePixFormat, width, height, imagePixFormat, SWS_BICUBIC, NULL, NULL, NULL );
}
if ( !imgConversionContext )
Fatal( "Unable to initialise image scaling context" );
}
#endif
}
LocalCamera::~LocalCamera()
{
if ( device_prime && capture )
Terminate();
#if HAVE_LIBSWSCALE
/* Clean up swscale stuff */
if(capture && conversion_type == 1) {
sws_freeContext(imgConversionContext);
imgConversionContext = NULL;
av_free(tmpPicture);
tmpPicture = NULL;
}
#endif
}
void LocalCamera::Initialise()
{
#if HAVE_LIBSWSCALE
if ( logDebugging() )
av_log_set_level( AV_LOG_DEBUG );
else
av_log_set_level( AV_LOG_QUIET );
#endif // HAVE_LIBSWSCALE
struct stat st;
if ( stat( device.c_str(), &st ) < 0 )
Fatal( "Failed to stat video device %s: %s", device.c_str(), strerror(errno) );
if ( !S_ISCHR(st.st_mode) )
Fatal( "File %s is not device file: %s", device.c_str(), strerror(errno) );
Debug( 3, "Opening video device %s", device.c_str() );
//if ( (vid_fd = open( device.c_str(), O_RDWR|O_NONBLOCK, 0 )) < 0 )
if ( (vid_fd = open( device.c_str(), O_RDWR, 0 )) < 0 )
Fatal( "Failed to open video device %s: %s", device.c_str(), strerror(errno) );
#if ZM_HAS_V4L2
Debug( 2, "V4L2 support enabled, using V4L%d api", v4l_version );
if ( v4l_version == 2 )
{
struct v4l2_capability vid_cap;
Debug( 3, "Checking video device capabilities" );
if ( vidioctl( vid_fd, VIDIOC_QUERYCAP, &vid_cap ) < 0 )
Fatal( "Failed to query video device: %s", strerror(errno) );
if ( !(vid_cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) )
Fatal( "Video device is not video capture device" );
if ( !(vid_cap.capabilities & V4L2_CAP_STREAMING) )
Fatal( "Video device does not support streaming i/o" );
Debug( 3, "Setting up video format" );
memset( &v4l2_data.fmt, 0, sizeof(v4l2_data.fmt) );
v4l2_data.fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if ( vidioctl( vid_fd, VIDIOC_G_FMT, &v4l2_data.fmt ) < 0 )
Fatal( "Failed to get video format: %s", strerror(errno) );
Debug( 4, " v4l2_data.fmt.type = %08x", v4l2_data.fmt.type );
Debug( 4, " v4l2_data.fmt.fmt.pix.width = %08x", v4l2_data.fmt.fmt.pix.width );
Debug( 4, " v4l2_data.fmt.fmt.pix.height = %08x", v4l2_data.fmt.fmt.pix.height );
Debug( 4, " v4l2_data.fmt.fmt.pix.pixelformat = %08x", v4l2_data.fmt.fmt.pix.pixelformat );
Debug( 4, " v4l2_data.fmt.fmt.pix.field = %08x", v4l2_data.fmt.fmt.pix.field );
Debug( 4, " v4l2_data.fmt.fmt.pix.bytesperline = %08x", v4l2_data.fmt.fmt.pix.bytesperline );
Debug( 4, " v4l2_data.fmt.fmt.pix.sizeimage = %08x", v4l2_data.fmt.fmt.pix.sizeimage );
Debug( 4, " v4l2_data.fmt.fmt.pix.colorspace = %08x", v4l2_data.fmt.fmt.pix.colorspace );
Debug( 4, " v4l2_data.fmt.fmt.pix.priv = %08x", v4l2_data.fmt.fmt.pix.priv );
v4l2_data.fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
v4l2_data.fmt.fmt.pix.width = width;
v4l2_data.fmt.fmt.pix.height = height;
v4l2_data.fmt.fmt.pix.pixelformat = palette;
if ( (extras & 0xff) != 0 )
{
v4l2_data.fmt.fmt.pix.field = (v4l2_field)(extras & 0xff);
if ( vidioctl( vid_fd, VIDIOC_S_FMT, &v4l2_data.fmt ) < 0 )
{
Warning( "Failed to set V4L2 field to %d, falling back to auto", (extras & 0xff) );
v4l2_data.fmt.fmt.pix.field = V4L2_FIELD_ANY;
if ( vidioctl( vid_fd, VIDIOC_S_FMT, &v4l2_data.fmt ) < 0 ) {
Fatal( "Failed to set video format: %s", strerror(errno) );
}
}
} else {
if ( vidioctl( vid_fd, VIDIOC_S_FMT, &v4l2_data.fmt ) < 0 ) {
Fatal( "Failed to set video format: %s", strerror(errno) );
}
}
/* Note VIDIOC_S_FMT may change width and height. */
Debug( 4, " v4l2_data.fmt.type = %08x", v4l2_data.fmt.type );
Debug( 4, " v4l2_data.fmt.fmt.pix.width = %08x", v4l2_data.fmt.fmt.pix.width );
Debug( 4, " v4l2_data.fmt.fmt.pix.height = %08x", v4l2_data.fmt.fmt.pix.height );
Debug( 4, " v4l2_data.fmt.fmt.pix.pixelformat = %08x", v4l2_data.fmt.fmt.pix.pixelformat );
Debug( 4, " v4l2_data.fmt.fmt.pix.field = %08x", v4l2_data.fmt.fmt.pix.field );
Debug( 4, " v4l2_data.fmt.fmt.pix.bytesperline = %08x", v4l2_data.fmt.fmt.pix.bytesperline );
Debug( 4, " v4l2_data.fmt.fmt.pix.sizeimage = %08x", v4l2_data.fmt.fmt.pix.sizeimage );
Debug( 4, " v4l2_data.fmt.fmt.pix.colorspace = %08x", v4l2_data.fmt.fmt.pix.colorspace );
Debug( 4, " v4l2_data.fmt.fmt.pix.priv = %08x", v4l2_data.fmt.fmt.pix.priv );
/* Buggy driver paranoia. */
unsigned int min;
min = v4l2_data.fmt.fmt.pix.width * 2;
if (v4l2_data.fmt.fmt.pix.bytesperline < min)
v4l2_data.fmt.fmt.pix.bytesperline = min;
min = v4l2_data.fmt.fmt.pix.bytesperline * v4l2_data.fmt.fmt.pix.height;
if (v4l2_data.fmt.fmt.pix.sizeimage < min)
v4l2_data.fmt.fmt.pix.sizeimage = min;
v4l2_jpegcompression jpeg_comp;
if(palette == V4L2_PIX_FMT_JPEG || palette == V4L2_PIX_FMT_MJPEG) {
if( vidioctl( vid_fd, VIDIOC_G_JPEGCOMP, &jpeg_comp ) < 0 ) {
if(errno == EINVAL) {
Debug(2, "JPEG compression options are not available");
} else {
Warning("Failed to get JPEG compression options: %s", strerror(errno) );
}
} else {
/* Set flags and quality. MJPEG should not have the huffman tables defined */
if(palette == V4L2_PIX_FMT_MJPEG) {
jpeg_comp.jpeg_markers |= V4L2_JPEG_MARKER_DQT | V4L2_JPEG_MARKER_DRI;
} else {
jpeg_comp.jpeg_markers |= V4L2_JPEG_MARKER_DQT | V4L2_JPEG_MARKER_DRI | V4L2_JPEG_MARKER_DHT;
}
jpeg_comp.quality = 85;
/* Update the JPEG options */
if( vidioctl( vid_fd, VIDIOC_S_JPEGCOMP, &jpeg_comp ) < 0 ) {
Warning("Failed to set JPEG compression options: %s", strerror(errno) );
} else {
if(vidioctl( vid_fd, VIDIOC_G_JPEGCOMP, &jpeg_comp ) < 0) {
Debug(3,"Failed to get updated JPEG compression options: %s", strerror(errno) );
} else {
Debug(4, "JPEG quality: %d",jpeg_comp.quality);
Debug(4, "JPEG markers: %#x",jpeg_comp.jpeg_markers);
}
}
}
}
Debug( 3, "Setting up request buffers" );
memset( &v4l2_data.reqbufs, 0, sizeof(v4l2_data.reqbufs) );
if ( channel_count > 1 )
if ( config.v4l_multi_buffer )
v4l2_data.reqbufs.count = 2*channel_count;
else
v4l2_data.reqbufs.count = 1;
else
v4l2_data.reqbufs.count = 8;
v4l2_data.reqbufs.type = v4l2_data.fmt.type;
v4l2_data.reqbufs.memory = V4L2_MEMORY_MMAP;
if ( vidioctl( vid_fd, VIDIOC_REQBUFS, &v4l2_data.reqbufs ) < 0 )
{
if ( errno == EINVAL )
{
Fatal( "Unable to initialise memory mapping, unsupported in device" );
}
else
{
Fatal( "Unable to initialise memory mapping: %s", strerror(errno) );
}
}
if ( v4l2_data.reqbufs.count < (config.v4l_multi_buffer?2:1) )
Fatal( "Insufficient buffer memory %d on video device", v4l2_data.reqbufs.count );
Debug( 3, "Setting up %d data buffers", v4l2_data.reqbufs.count );
v4l2_data.buffers = new V4L2MappedBuffer[v4l2_data.reqbufs.count];
#if HAVE_LIBSWSCALE
capturePictures = new AVFrame *[v4l2_data.reqbufs.count];
#endif // HAVE_LIBSWSCALE
for ( unsigned int i = 0; i < v4l2_data.reqbufs.count; i )
{
struct v4l2_buffer vid_buf;
memset( &vid_buf, 0, sizeof(vid_buf) );
//vid_buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
vid_buf.type = v4l2_data.fmt.type;
//vid_buf.memory = V4L2_MEMORY_MMAP;
vid_buf.memory = v4l2_data.reqbufs.memory;
vid_buf.index = i;
if ( vidioctl( vid_fd, VIDIOC_QUERYBUF, &vid_buf ) < 0 )
Fatal( "Unable to query video buffer: %s", strerror(errno) );
v4l2_data.buffers[i].length = vid_buf.length;
v4l2_data.buffers[i].start = mmap( NULL, vid_buf.length, PROT_READ|PROT_WRITE, MAP_SHARED, vid_fd, vid_buf.m.offset );
if ( v4l2_data.buffers[i].start == MAP_FAILED )
Fatal( "Can't map video buffer %d (%d bytes) to memory: %s(%d)", i, vid_buf.length, strerror(errno), errno );
#if HAVE_LIBSWSCALE
capturePictures[i] = avcodec_alloc_frame();
if ( !capturePictures[i] )
Fatal( "Could not allocate picture" );
avpicture_fill( (AVPicture *)capturePictures[i], (uint8_t*)v4l2_data.buffers[i].start, capturePixFormat, v4l2_data.fmt.fmt.pix.width, v4l2_data.fmt.fmt.pix.height );
#endif // HAVE_LIBSWSCALE
}
Debug( 3, "Configuring video source" );
if ( vidioctl( vid_fd, VIDIOC_S_INPUT, &channel ) < 0 )
{
Fatal( "Failed to set camera source %d: %s", channel, strerror(errno) );
}
struct v4l2_input input;
v4l2_std_id stdId;
memset( &input, 0, sizeof(input) );
if ( vidioctl( vid_fd, VIDIOC_ENUMINPUT, &input ) < 0 )
{
Fatal( "Failed to enumerate input %d: %s", channel, strerror(errno) );
}
if ( (input.std != V4L2_STD_UNKNOWN) && ((input.std & standard) == V4L2_STD_UNKNOWN) )
{
Fatal( "Device does not support video standard %d", standard );
}
stdId = standard;
if ( (input.std != V4L2_STD_UNKNOWN) && vidioctl( vid_fd, VIDIOC_S_STD, &stdId ) < 0 )
{
Fatal( "Failed to set video standard %d: %s", standard, strerror(errno) );
}
Contrast(contrast);
Brightness(brightness);
Hue(hue);
Colour(colour);
}
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( v4l_version == 1 )
{
Debug( 3, "Configuring picture attributes" );
struct video_picture vid_pic;
memset( &vid_pic, 0, sizeof(vid_pic) );
if ( ioctl( vid_fd, VIDIOCGPICT, &vid_pic) < 0 )
Fatal( "Failed to get picture attributes: %s", strerror(errno) );
Debug( 4, "Old P:%d", vid_pic.palette );
Debug( 4, "Old D:%d", vid_pic.depth );
Debug( 4, "Old B:%d", vid_pic.brightness );
Debug( 4, "Old h:%d", vid_pic.hue );
Debug( 4, "Old Cl:%d", vid_pic.colour );
Debug( 4, "Old Cn:%d", vid_pic.contrast );
switch (vid_pic.palette = palette)
{
case VIDEO_PALETTE_RGB32 :
{
vid_pic.depth = 32;
break;
}
case VIDEO_PALETTE_RGB24 :
{
vid_pic.depth = 24;
break;
}
case VIDEO_PALETTE_GREY :
{
vid_pic.depth = 8;
break;
}
case VIDEO_PALETTE_RGB565 :
case VIDEO_PALETTE_YUYV :
case VIDEO_PALETTE_YUV422 :
case VIDEO_PALETTE_YUV420P :
case VIDEO_PALETTE_YUV422P :
default:
{
vid_pic.depth = 16;
break;
}
}
if ( brightness >= 0 ) vid_pic.brightness = brightness;
if ( hue >= 0 ) vid_pic.hue = hue;
if ( colour >= 0 ) vid_pic.colour = colour;
if ( contrast >= 0 ) vid_pic.contrast = contrast;
if ( ioctl( vid_fd, VIDIOCSPICT, &vid_pic ) < 0 )
{
Error( "Failed to set picture attributes: %s", strerror(errno) );
if ( config.strict_video_config )
exit(-1);
}
Debug( 3, "Configuring window attributes" );
struct video_window vid_win;
memset( &vid_win, 0, sizeof(vid_win) );
if ( ioctl( vid_fd, VIDIOCGWIN, &vid_win) < 0 )
{
Error( "Failed to get window attributes: %s", strerror(errno) );
exit(-1);
}
Debug( 4, "Old X:%d", vid_win.x );
Debug( 4, "Old Y:%d", vid_win.y );
Debug( 4, "Old W:%d", vid_win.width );
Debug( 4, "Old H:%d", vid_win.height );
vid_win.x = 0;
vid_win.y = 0;
vid_win.width = width;
vid_win.height = height;
vid_win.flags &= ~VIDEO_WINDOW_INTERLACE;
if ( ioctl( vid_fd, VIDIOCSWIN, &vid_win ) < 0 )
{
Error( "Failed to set window attributes: %s", strerror(errno) );
if ( config.strict_video_config )
exit(-1);
}
Info( "vid_win.width = %08x", vid_win.width );
Info( "vid_win.height = %08x", vid_win.height );
Info( "vid_win.flags = %08x", vid_win.flags );
Debug( 3, "Setting up request buffers" );
if ( ioctl( vid_fd, VIDIOCGMBUF, &v4l1_data.frames ) < 0 )
Fatal( "Failed to setup memory: %s", strerror(errno) );
if ( channel_count > 1 && !config.v4l_multi_buffer )
v4l1_data.frames.frames = 1;
v4l1_data.buffers = new video_mmap[v4l1_data.frames.frames];
Debug( 4, "vmb.frames = %d", v4l1_data.frames.frames );
Debug( 4, "vmb.size = %d", v4l1_data.frames.size );
Debug( 3, "Setting up %d frame buffers", v4l1_data.frames.frames );
v4l1_data.bufptr = (unsigned char *)mmap( 0, v4l1_data.frames.size, PROT_READ|PROT_WRITE, MAP_SHARED, vid_fd, 0 );
if ( v4l1_data.bufptr == MAP_FAILED )
Fatal( "Could not mmap video: %s", strerror(errno) );
#if HAVE_LIBSWSCALE
capturePictures = new AVFrame *[v4l1_data.frames.frames];
for ( int i = 0; i < v4l1_data.frames.frames; i )
{
v4l1_data.buffers[i].frame = i;
v4l1_data.buffers[i].width = width;
v4l1_data.buffers[i].height = height;
v4l1_data.buffers[i].format = palette;
capturePictures[i] = avcodec_alloc_frame();
if ( !capturePictures[i] )
Fatal( "Could not allocate picture" );
avpicture_fill( (AVPicture *)capturePictures[i], (unsigned char *)v4l1_data.bufptr v4l1_data.frames.offsets[i], capturePixFormat, width, height );
}
#endif // HAVE_LIBSWSCALE
Debug( 3, "Configuring video source" );
struct video_channel vid_src;
memset( &vid_src, 0, sizeof(vid_src) );
vid_src.channel = channel;
if ( ioctl( vid_fd, VIDIOCGCHAN, &vid_src) < 0 )
Fatal( "Failed to get camera source: %s", strerror(errno) );
Debug( 4, "Old C:%d", vid_src.channel );
Debug( 4, "Old F:%d", vid_src.norm );
Debug( 4, "Old Fl:%x", vid_src.flags );
Debug( 4, "Old T:%d", vid_src.type );
vid_src.norm = standard;
vid_src.flags = 0;
vid_src.type = VIDEO_TYPE_CAMERA;
if ( ioctl( vid_fd, VIDIOCSCHAN, &vid_src ) < 0 )
{
Error( "Failed to set camera source %d: %s", channel, strerror(errno) );
if ( config.strict_video_config )
exit(-1);
}
if ( ioctl( vid_fd, VIDIOCGWIN, &vid_win) < 0 )
Fatal( "Failed to get window data: %s", strerror(errno) );
Info( "vid_win.width = %08x", vid_win.width );
Info( "vid_win.height = %08x", vid_win.height );
Info( "vid_win.flags = %08x", vid_win.flags );
Debug( 4, "New X:%d", vid_win.x );
Debug( 4, "New Y:%d", vid_win.y );
Debug( 4, "New W:%d", vid_win.width );
Debug( 4, "New H:%d", vid_win.height );
if ( ioctl( vid_fd, VIDIOCGPICT, &vid_pic) < 0 )
Fatal( "Failed to get window data: %s", strerror(errno) );
Debug( 4, "New P:%d", vid_pic.palette );
Debug( 4, "New D:%d", vid_pic.depth );
Debug( 4, "New B:%d", vid_pic.brightness );
Debug( 4, "New h:%d", vid_pic.hue );
Debug( 4, "New Cl:%d", vid_pic.colour );
Debug( 4, "New Cn:%d", vid_pic.contrast );
}
#endif // ZM_HAS_V4L1
}
void LocalCamera::Terminate()
{
#if ZM_HAS_V4L2
if ( v4l_version == 2 )
{
Debug( 3, "Terminating video stream" );
//enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
// enum v4l2_buf_type type = v4l2_data.fmt.type;
enum v4l2_buf_type type = (v4l2_buf_type)v4l2_data.fmt.type;
if ( vidioctl( vid_fd, VIDIOC_STREAMOFF, &type ) < 0 )
Error( "Failed to stop capture stream: %s", strerror(errno) );
Debug( 3, "Unmapping video buffers" );
for ( unsigned int i = 0; i < v4l2_data.reqbufs.count; i ) {
#if HAVE_LIBSWSCALE
/* Free capture pictures */
av_free(capturePictures[i]);
capturePictures[i] = NULL;
#endif
if ( munmap( v4l2_data.buffers[i].start, v4l2_data.buffers[i].length ) < 0 )
Error( "Failed to munmap buffer %d: %s", i, strerror(errno) );
}
}
else
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( v4l_version == 1 )
{
#if HAVE_LIBSWSCALE
for(int i=0; i < v4l1_data.frames.frames; i ) {
/* Free capture pictures */
av_free(capturePictures[i]);
capturePictures[i] = NULL;
}
#endif
Debug( 3, "Unmapping video buffers" );
if ( munmap((char*)v4l1_data.bufptr, v4l1_data.frames.size) < 0 )
Error( "Failed to munmap buffers: %s", strerror(errno) );
delete[] v4l1_data.buffers;
}
#endif // ZM_HAS_V4L1
close( vid_fd );
}
uint32_t LocalCamera::AutoSelectFormat(int p_colours) {
/* Automatic format selection */
uint32_t selected_palette = 0;
#if ZM_HAS_V4L2
char fmt_desc[64][32];
uint32_t fmt_fcc[64];
v4l2_fmtdesc fmtinfo;
unsigned int nIndex = 0;
//int nRet = 0; // compiler say it isn't used
int enum_fd;
/* Open the device */
if ((enum_fd = open( device.c_str(), O_RDWR, 0 )) < 0) {
Error( "Automatic format selection failed to open video device %s: %s", device.c_str(), strerror(errno) );
return selected_palette;
}
/* Enumerate available formats */
memset(&fmtinfo, 0, sizeof(fmtinfo));
fmtinfo.index = nIndex;
fmtinfo.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
while(vidioctl( enum_fd, VIDIOC_ENUM_FMT, &fmtinfo ) >= 0) {
/* Got a format. Copy it to the array */
strcpy(fmt_desc[nIndex], (const char*)(fmtinfo.description));
fmt_fcc[nIndex] = fmtinfo.pixelformat;
Debug(6, "Got format: %s (%c%c%c%c) at index %d",fmt_desc[nIndex],fmt_fcc[nIndex]&0xff, (fmt_fcc[nIndex]>>8)&0xff, (fmt_fcc[nIndex]>>16)&0xff, (fmt_fcc[nIndex]>>24)&0xff ,nIndex);
/* Proceed to the next index */
memset(&fmtinfo, 0, sizeof(fmtinfo));
fmtinfo.index = nIndex;
fmtinfo.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
}
/* Select format */
int nIndexUsed = -1;
int n_preferedformats = 0;
const uint32_t* preferedformats;
if(p_colours == ZM_COLOUR_RGB32) {
/* 32bit */
preferedformats = prefered_rgb32_formats;
n_preferedformats = sizeof(prefered_rgb32_formats) / sizeof(uint32_t);
} else if(p_colours == ZM_COLOUR_GRAY8) {
/* Grayscale */
preferedformats = prefered_gray8_formats;
n_preferedformats = sizeof(prefered_gray8_formats) / sizeof(uint32_t);
} else {
/* Assume 24bit */
preferedformats = prefered_rgb24_formats;
n_preferedformats = sizeof(prefered_rgb24_formats) / sizeof(uint32_t);
}
for( unsigned int i=0; i < (unsigned int)n_preferedformats && nIndexUsed < 0; i ) {
for( unsigned int j=0; j < nIndex; j ) {
if( preferedformats[i] == fmt_fcc[j] ) {
/* Found a format! */
nIndexUsed = j;
break;
}
}
}
/* Have we found a match? */
if(nIndexUsed >= 0) {
/* Found a match */
selected_palette = fmt_fcc[nIndexUsed];
strcpy(palette_desc,fmt_desc[nIndexUsed]);
}
/* Close the device */
close(enum_fd);
#endif /* ZM_HAS_V4L2 */
return selected_palette;
}
#define capString(test,prefix,yesString,noString,capability) \
(test) ? (prefix yesString " " capability "\n") : (prefix noString " " capability "\n")
bool LocalCamera::GetCurrentSettings( const char *device, char *output, int version, bool verbose )
{
output[0] = 0;
char queryDevice[PATH_MAX] = "";
int devIndex = 0;
do
{
if ( device )
strcpy( queryDevice, device );
else
sprintf( queryDevice, "/dev/video%d", devIndex );
if ( (vid_fd = open(queryDevice, O_RDWR)) <= 0 )
{
if ( device )
{
Error( "Failed to open video device %s: %s", queryDevice, strerror(errno) );
if ( verbose )
sprintf( output strlen(output), "Error, failed to open video device %s: %s\n", queryDevice, strerror(errno) );
else
sprintf( output strlen(output), "error%d\n", errno );
return( false );
}
else
{
return( true );
}
}
if ( verbose )
sprintf( output strlen(output), "Video Device: %s\n", queryDevice );
else
sprintf( output strlen(output), "d:%s|", queryDevice );
#if ZM_HAS_V4L2
if ( version == 2 )
{
struct v4l2_capability vid_cap;
if ( vidioctl( vid_fd, VIDIOC_QUERYCAP, &vid_cap ) < 0 )
{
Error( "Failed to query video device: %s", strerror(errno) );
if ( verbose )
sprintf( output, "Error, failed to query video capabilities %s: %s\n", queryDevice, strerror(errno) );
else
sprintf( output, "error%d\n", errno );
return( false );
}
if ( verbose )
{
sprintf( output strlen(output), "General Capabilities\n" );
sprintf( output strlen(output), " Driver: %s\n", vid_cap.driver );
sprintf( output strlen(output), " Card: %s\n", vid_cap.card );
sprintf( output strlen(output), " Bus: %s\n", vid_cap.bus_info );
sprintf( output strlen(output), " Version: %u.%u.%u\n", (vid_cap.version>>16)&0xff, (vid_cap.version>>8)&0xff, vid_cap.version&0xff );
sprintf( output strlen(output), " Type: 0x%x\n%s%s%s%s%s%s%s%s%s%s%s%s%s%s", vid_cap.capabilities,
capString( vid_cap.capabilities&V4L2_CAP_VIDEO_CAPTURE, " ", "Supports", "Does not support", "video capture (X)" ),
capString( vid_cap.capabilities&V4L2_CAP_VIDEO_OUTPUT, " ", "Supports", "Does not support", "video output" ),
capString( vid_cap.capabilities&V4L2_CAP_VIDEO_OVERLAY, " ", "Supports", "Does not support", "frame buffer overlay" ),
capString( vid_cap.capabilities&V4L2_CAP_VBI_CAPTURE, " ", "Supports", "Does not support", "VBI capture" ),
capString( vid_cap.capabilities&V4L2_CAP_VBI_OUTPUT, " ", "Supports", "Does not support", "VBI output" ),
capString( vid_cap.capabilities&V4L2_CAP_SLICED_VBI_CAPTURE, " ", "Supports", "Does not support", "sliced VBI capture" ),
capString( vid_cap.capabilities&V4L2_CAP_SLICED_VBI_OUTPUT, " ", "Supports", "Does not support", "sliced VBI output" ),
#ifdef V4L2_CAP_VIDEO_OUTPUT_OVERLAY
capString( vid_cap.capabilities&V4L2_CAP_VIDEO_OUTPUT_OVERLAY, " ", "Supports", "Does not support", "video output overlay" ),
#else // V4L2_CAP_VIDEO_OUTPUT_OVERLAY
"",
#endif // V4L2_CAP_VIDEO_OUTPUT_OVERLAY
capString( vid_cap.capabilities&V4L2_CAP_TUNER, " ", "Has", "Does not have", "tuner" ),
capString( vid_cap.capabilities&V4L2_CAP_AUDIO, " ", "Has", "Does not have", "audio in and/or out" ),
capString( vid_cap.capabilities&V4L2_CAP_RADIO, " ", "Has", "Does not have", "radio" ),
capString( vid_cap.capabilities&V4L2_CAP_READWRITE, " ", "Supports", "Does not support", "read/write i/o (X)" ),
capString( vid_cap.capabilities&V4L2_CAP_ASYNCIO, " ", "Supports", "Does not support", "async i/o" ),
capString( vid_cap.capabilities&V4L2_CAP_STREAMING, " ", "Supports", "Does not support", "streaming i/o (X)" )
);
}
else
{
sprintf( output strlen(output), "D:%s|", vid_cap.driver );
sprintf( output strlen(output), "C:%s|", vid_cap.card );
sprintf( output strlen(output), "B:%s|", vid_cap.bus_info );
sprintf( output strlen(output), "V:%u.%u.%u|", (vid_cap.version>>16)&0xff, (vid_cap.version>>8)&0xff, vid_cap.version&0xff );
sprintf( output strlen(output), "T:0x%x|", vid_cap.capabilities );
}
if ( verbose )
sprintf( output strlen(output), " Standards:\n" );
else
sprintf( output strlen(output), "S:" );
struct v4l2_standard standard;
int standardIndex = 0;
do
{
memset( &standard, 0, sizeof(standard) );
standard.index = standardIndex;
if ( vidioctl( vid_fd, VIDIOC_ENUMSTD, &standard ) < 0 )
{
if ( errno == EINVAL )
{
standardIndex = -1;
break;
}
else
{
Error( "Failed to enumerate standard %d: %s", standard.index, strerror(errno) );
if ( verbose )
sprintf( output, "Error, failed to enumerate standard %d: %s\n", standard.index, strerror(errno) );
else
sprintf( output, "error%d\n", errno );
return( false );
}
}
if ( verbose )
sprintf( output strlen(output), " %s\n", standard.name );
else
sprintf( output strlen(output), "%s/", standard.name );
}
while ( standardIndex >= 0 );
if ( !verbose && output[strlen(output)-1] == '/')
output[strlen(output)-1] = '|';
if ( verbose )
sprintf( output strlen(output), " Formats:\n" );
else
sprintf( output strlen(output), "F:" );
struct v4l2_fmtdesc format;
int formatIndex = 0;
do
{
memset( &format, 0, sizeof(format) );
format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
format.index = formatIndex;
if ( vidioctl( vid_fd, VIDIOC_ENUM_FMT, &format ) < 0 )
{
if ( errno == EINVAL )
{
formatIndex = -1;
break;
}
else
{
Error( "Failed to enumerate format %d: %s", format.index, strerror(errno) );
if ( verbose )
sprintf( output, "Error, failed to enumerate format %d: %s\n", format.index, strerror(errno) );
else
sprintf( output, "error%d\n", errno );
return( false );
}
}
if ( verbose )
sprintf( output strlen(output), " %s (%c%c%c%c)\n", format.description, format.pixelformat&0xff, (format.pixelformat>>8)&0xff, (format.pixelformat>>16)&0xff, (format.pixelformat>>24)&0xff );
else
sprintf( output strlen(output), "%c%c%c%c/", format.pixelformat&0xff, (format.pixelformat>>8)&0xff, (format.pixelformat>>16)&0xff, (format.pixelformat>>24)&0xff );
}
while ( formatIndex >= 0 );
if ( !verbose )
output[strlen(output)-1] = '|';
if(verbose)
sprintf( output strlen(output), "Crop Capabilities\n" );
struct v4l2_cropcap cropcap;
memset( &cropcap, 0, sizeof(cropcap) );
cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if ( vidioctl( vid_fd, VIDIOC_CROPCAP, &cropcap ) < 0 )
{
if(errno != EINVAL) {
/* Failed querying crop capability, write error to the log and continue as if crop is not supported */
Error( "Failed to query crop capabilities: %s", strerror(errno) );
}
if(verbose) {
sprintf( output strlen(output), " Cropping is not supported\n");
} else {
/* Send fake crop bounds to not confuse things parsing this, such as monitor probe */
sprintf( output strlen(output), "B:%dx%d|",0,0);
}
} else {
struct v4l2_crop crop;
memset( &crop, 0, sizeof(crop) );
crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if ( vidioctl( vid_fd, VIDIOC_G_CROP, &crop ) < 0 )
{
if ( errno != EINVAL )
{
/* Failed querying crop sizes, write error to the log and continue as if crop is not supported */
Error( "Failed to query crop: %s", strerror(errno) );
}
if ( verbose ) {
sprintf( output strlen(output), " Cropping is not supported\n");
} else {
/* Send fake crop bounds to not confuse things parsing this, such as monitor probe */
sprintf( output strlen(output), "B:%dx%d|",0,0);
}
} else {
/* Cropping supported */
if ( verbose ) {
sprintf( output strlen(output), " Bounds: %d x %d\n", cropcap.bounds.width, cropcap.bounds.height );
sprintf( output strlen(output), " Default: %d x %d\n", cropcap.defrect.width, cropcap.defrect.height );
sprintf( output strlen(output), " Current: %d x %d\n", crop.c.width, crop.c.height );
} else {
sprintf( output strlen(output), "B:%dx%d|", cropcap.bounds.width, cropcap.bounds.height );
}
}
} /* Crop code */
struct v4l2_input input;
int inputIndex = 0;
do
{
memset( &input, 0, sizeof(input) );
input.index = inputIndex;
if ( vidioctl( vid_fd, VIDIOC_ENUMINPUT, &input ) < 0 )
{
if ( errno == EINVAL )
{
break;
}
else
{
Error( "Failed to enumerate input %d: %s", input.index, strerror(errno) );
if ( verbose )
sprintf( output, "Error, failed to enumerate input %d: %s\n", input.index, strerror(errno) );
else
sprintf( output, "error%d\n", errno );
return( false );
}
}
}
while ( inputIndex >= 0 );
if ( verbose )
sprintf( output strlen(output), "Inputs: %d\n", inputIndex );
else
sprintf( output strlen(output), "I:%d|", inputIndex );
inputIndex = 0;
do
{
memset( &input, 0, sizeof(input) );
input.index = inputIndex;
if ( vidioctl( vid_fd, VIDIOC_ENUMINPUT, &input ) < 0 )
{
if ( errno == EINVAL )
{
inputIndex = -1;
break;
}
else
{
Error( "Failed to enumerate input %d: %s", input.index, strerror(errno) );
if ( verbose )
sprintf( output, "Error, failed to enumerate input %d: %s\n", input.index, strerror(errno) );
else
sprintf( output, "error%d\n", errno );
return( false );
}
}
if ( vidioctl( vid_fd, VIDIOC_S_INPUT, &input.index ) < 0 )
{
Error( "Failed to set video input %d: %s", input.index, strerror(errno) );
if ( verbose )
sprintf( output, "Error, failed to switch to input %d: %s\n", input.index, strerror(errno) );
else
sprintf( output, "error%d\n", errno );
return( false );
}
if ( verbose )
{
sprintf( output strlen(output), " Input %d\n", input.index );
sprintf( output strlen(output), " Name: %s\n", input.name );
sprintf( output strlen(output), " Type: %s\n", input.type==V4L2_INPUT_TYPE_TUNER?"Tuner":(input.type==V4L2_INPUT_TYPE_CAMERA?"Camera":"Unknown") );
sprintf( output strlen(output), " Audioset: %08x\n", input.audioset );
sprintf( output strlen(output), " Standards: 0x%llx\n", input.std );
}
else
{
sprintf( output strlen(output), "i%d:%s|", input.index, input.name );
sprintf( output strlen(output), "i%dT:%s|", input.index, input.type==V4L2_INPUT_TYPE_TUNER?"Tuner":(input.type==V4L2_INPUT_TYPE_CAMERA?"Camera":"Unknown") );
sprintf( output strlen(output), "i%dS:%llx|", input.index, input.std );
}
if ( verbose )
{
sprintf( output strlen(output), " %s", capString( input.status&V4L2_IN_ST_NO_POWER, "Power ", "off", "on", " (X)" ) );
sprintf( output strlen(output), " %s", capString( input.status&V4L2_IN_ST_NO_SIGNAL, "Signal ", "not detected", "detected", " (X)" ) );
sprintf( output strlen(output), " %s", capString( input.status&V4L2_IN_ST_NO_COLOR, "Colour Signal ", "not detected", "detected", "" ) );
sprintf( output strlen(output), " %s", capString( input.status&V4L2_IN_ST_NO_H_LOCK, "Horizontal Lock ", "not detected", "detected", "" ) );
}
else
{
sprintf( output strlen(output), "i%dSP:%d|", input.index, input.status&V4L2_IN_ST_NO_POWER?0:1 );
sprintf( output strlen(output), "i%dSS:%d|", input.index, input.status&V4L2_IN_ST_NO_SIGNAL?0:1 );
sprintf( output strlen(output), "i%dSC:%d|", input.index, input.status&V4L2_IN_ST_NO_COLOR?0:1 );
sprintf( output strlen(output), "i%dHP:%d|", input.index, input.status&V4L2_IN_ST_NO_H_LOCK?0:1 );
}
}
while ( inputIndex >= 0 );
if ( !verbose )
output[strlen(output)-1] = '\n';
}
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( version == 1 )
{
struct video_capability vid_cap;
memset( &vid_cap, 0, sizeof(video_capability) );
if ( ioctl( vid_fd, VIDIOCGCAP, &vid_cap ) < 0 )
{
Error( "Failed to get video capabilities: %s", strerror(errno) );
if ( verbose )
sprintf( output, "Error, failed to get video capabilities %s: %s\n", queryDevice, strerror(errno) );
else
sprintf( output, "error%d\n", errno );
return( false );
}
if ( verbose )
{
sprintf( output strlen(output), "Video Capabilities\n" );
sprintf( output strlen(output), " Name: %s\n", vid_cap.name );
sprintf( output strlen(output), " Type: %d\n%s%s%s%s%s%s%s%s%s%s%s%s%s%s", vid_cap.type,
vid_cap.type&VID_TYPE_CAPTURE?" Can capture\n":"",
vid_cap.type&VID_TYPE_TUNER?" Can tune\n":"",
vid_cap.type&VID_TYPE_TELETEXT?" Does teletext\n":"",
vid_cap.type&VID_TYPE_OVERLAY?" Overlay onto frame buffer\n":"",
vid_cap.type&VID_TYPE_CHROMAKEY?" Overlay by chromakey\n":"",
vid_cap.type&VID_TYPE_CLIPPING?" Can clip\n":"",
vid_cap.type&VID_TYPE_FRAMERAM?" Uses the frame buffer memory\n":"",
vid_cap.type&VID_TYPE_SCALES?" Scalable\n":"",
vid_cap.type&VID_TYPE_MONOCHROME?" Monochrome only\n":"",
vid_cap.type&VID_TYPE_SUBCAPTURE?" Can capture subareas of the image\n":"",
vid_cap.type&VID_TYPE_MPEG_DECODER?" Can decode MPEG streams\n":"",
vid_cap.type&VID_TYPE_MPEG_ENCODER?" Can encode MPEG streams\n":"",
vid_cap.type&VID_TYPE_MJPEG_DECODER?" Can decode MJPEG streams\n":"",
vid_cap.type&VID_TYPE_MJPEG_ENCODER?" Can encode MJPEG streams\n":""
);
sprintf( output strlen(output), " Video Channels: %d\n", vid_cap.channels );
sprintf( output strlen(output), " Audio Channels: %d\n", vid_cap.audios );
sprintf( output strlen(output), " Maximum Width: %d\n", vid_cap.maxwidth );
sprintf( output strlen(output), " Maximum Height: %d\n", vid_cap.maxheight );
sprintf( output strlen(output), " Minimum Width: %d\n", vid_cap.minwidth );
sprintf( output strlen(output), " Minimum Height: %d\n", vid_cap.minheight );
}
else
{
sprintf( output strlen(output), "N:%s|", vid_cap.name );
sprintf( output strlen(output), "T:%d|", vid_cap.type );
sprintf( output strlen(output), "nC:%d|", vid_cap.channels );
sprintf( output strlen(output), "nA:%d|", vid_cap.audios );
sprintf( output strlen(output), "mxW:%d|", vid_cap.maxwidth );
sprintf( output strlen(output), "mxH:%d|", vid_cap.maxheight );
sprintf( output strlen(output), "mnW:%d|", vid_cap.minwidth );
sprintf( output strlen(output), "mnH:%d|", vid_cap.minheight );
}
struct video_window vid_win;
memset( &vid_win, 0, sizeof(video_window) );
if ( ioctl( vid_fd, VIDIOCGWIN, &vid_win ) < 0 )
{
Error( "Failed to get window attributes: %s", strerror(errno) );
if ( verbose )
sprintf( output, "Error, failed to get window attributes: %s\n", strerror(errno) );
else
sprintf( output, "error%d\n", errno );
return( false );
}
if ( verbose )
{
sprintf( output strlen(output), "Window Attributes\n" );
sprintf( output strlen(output), " X Offset: %d\n", vid_win.x );
sprintf( output strlen(output), " Y Offset: %d\n", vid_win.y );
sprintf( output strlen(output), " Width: %d\n", vid_win.width );
sprintf( output strlen(output), " Height: %d\n", vid_win.height );
}
else
{
sprintf( output strlen(output), "X:%d|", vid_win.x );
sprintf( output strlen(output), "Y:%d|", vid_win.y );
sprintf( output strlen(output), "W:%d|", vid_win.width );
sprintf( output strlen(output), "H:%d|", vid_win.height );
}
struct video_picture vid_pic;
memset( &vid_cap, 0, sizeof(video_picture) );
if ( ioctl( vid_fd, VIDIOCGPICT, &vid_pic ) < 0 )
{
Error( "Failed to get picture attributes: %s", strerror(errno) );
if ( verbose )
sprintf( output, "Error, failed to get picture attributes: %s\n", strerror(errno) );
else
sprintf( output, "error%d\n", errno );
return( false );
}
if ( verbose )
{
sprintf( output strlen(output), "Picture Attributes\n" );
sprintf( output strlen(output), " Palette: %d - %s\n", vid_pic.palette,
vid_pic.palette==VIDEO_PALETTE_GREY?"Linear greyscale":(
vid_pic.palette==VIDEO_PALETTE_HI240?"High 240 cube (BT848)":(
vid_pic.palette==VIDEO_PALETTE_RGB565?"565 16 bit RGB":(
vid_pic.palette==VIDEO_PALETTE_RGB24?"24bit RGB":(
vid_pic.palette==VIDEO_PALETTE_RGB32?"32bit RGB":(
vid_pic.palette==VIDEO_PALETTE_RGB555?"555 15bit RGB":(
vid_pic.palette==VIDEO_PALETTE_YUV422?"YUV422 capture":(
vid_pic.palette==VIDEO_PALETTE_YUYV?"YUYV":(
vid_pic.palette==VIDEO_PALETTE_UYVY?"UVYV":(
vid_pic.palette==VIDEO_PALETTE_YUV420?"YUV420":(
vid_pic.palette==VIDEO_PALETTE_YUV411?"YUV411 capture":(
vid_pic.palette==VIDEO_PALETTE_RAW?"RAW capture (BT848)":(
vid_pic.palette==VIDEO_PALETTE_YUYV?"YUYV":(
vid_pic.palette==VIDEO_PALETTE_YUV422?"YUV422":(
vid_pic.palette==VIDEO_PALETTE_YUV422P?"YUV 4:2:2 Planar":(
vid_pic.palette==VIDEO_PALETTE_YUV411P?"YUV 4:1:1 Planar":(
vid_pic.palette==VIDEO_PALETTE_YUV420P?"YUV 4:2:0 Planar":(
vid_pic.palette==VIDEO_PALETTE_YUV410P?"YUV 4:1:0 Planar":"Unknown"
))))))))))))))))));
sprintf( output strlen(output), " Colour Depth: %d\n", vid_pic.depth );
sprintf( output strlen(output), " Brightness: %d\n", vid_pic.brightness );
sprintf( output strlen(output), " Hue: %d\n", vid_pic.hue );
sprintf( output strlen(output), " Colour :%d\n", vid_pic.colour );
sprintf( output strlen(output), " Contrast: %d\n", vid_pic.contrast );
sprintf( output strlen(output), " Whiteness: %d\n", vid_pic.whiteness );
}
else
{
sprintf( output strlen(output), "P:%d|", vid_pic.palette );
sprintf( output strlen(output), "D:%d|", vid_pic.depth );
sprintf( output strlen(output), "B:%d|", vid_pic.brightness );
sprintf( output strlen(output), "h:%d|", vid_pic.hue );
sprintf( output strlen(output), "Cl:%d|", vid_pic.colour );
sprintf( output strlen(output), "Cn:%d|", vid_pic.contrast );
sprintf( output strlen(output), "w:%d|", vid_pic.whiteness );
}
for ( int chan = 0; chan < vid_cap.channels; chan )
{
struct video_channel vid_src;
memset( &vid_src, 0, sizeof(video_channel) );
vid_src.channel = chan;
if ( ioctl( vid_fd, VIDIOCGCHAN, &vid_src ) < 0 )
{
Error( "Failed to get channel %d attributes: %s", chan, strerror(errno) );
if ( verbose )
sprintf( output, "Error, failed to get channel %d attributes: %s\n", chan, strerror(errno) );
else
sprintf( output, "error%d\n", errno );
return( false );
}
if ( verbose )
{
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)?"":"," );
}
}
if ( !verbose )
output[strlen(output)-1] = '\n';
}
#endif // ZM_HAS_V4L1
close( vid_fd );
if ( device )
break;
}
while ( devIndex < 32 );
return( true );
}
int LocalCamera::Brightness( int p_brightness )
{
#if ZM_HAS_V4L2
if ( v4l_version == 2 )
{
struct v4l2_control vid_control;
memset( &vid_control, 0, sizeof(vid_control) );
vid_control.id = V4L2_CID_BRIGHTNESS;
if ( vidioctl( vid_fd, VIDIOC_G_CTRL, &vid_control ) < 0 )
{
if ( errno != EINVAL )
Error( "Unable to query brightness: %s", strerror(errno) )
else
Warning( "Brightness control is not supported" )
//Info( "Brightness 1 %d", vid_control.value );
}
else if ( p_brightness >= 0 )
{
vid_control.value = p_brightness;
//Info( "Brightness 2 %d", vid_control.value );
/* The driver may clamp the value or return ERANGE, ignored here */
if ( vidioctl ( vid_fd, VIDIOC_S_CTRL, &vid_control ) )
{
if ( errno != ERANGE )
Error( "Unable to set brightness: %s", strerror(errno) )
else
Warning( "Given brightness value (%d) may be out-of-range", p_brightness )
}
//Info( "Brightness 3 %d", vid_control.value );
}
return( vid_control.value );
}
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( v4l_version == 1 )
{
struct video_picture vid_pic;
memset( &vid_pic, 0, sizeof(video_picture) );
if ( ioctl( vid_fd, 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( vid_fd, VIDIOCSPICT, &vid_pic ) < 0 )
{
Error( "Failed to set picture attributes: %s", strerror(errno) );
return( -1 );
}
}
return( vid_pic.brightness );
}
#endif // ZM_HAS_V4L1
return( -1 );
}
int LocalCamera::Hue( int p_hue )
{
#if ZM_HAS_V4L2
if ( v4l_version == 2 )
{
struct v4l2_control vid_control;
memset( &vid_control, 0, sizeof(vid_control) );
vid_control.id = V4L2_CID_HUE;
if ( vidioctl( vid_fd, VIDIOC_G_CTRL, &vid_control ) < 0 )
{
if ( errno != EINVAL )
Error( "Unable to query hue: %s", strerror(errno) )
else
Warning( "Hue control is not supported" )
}
else if ( p_hue >= 0 )
{
vid_control.value = p_hue;
/* The driver may clamp the value or return ERANGE, ignored here */
if ( vidioctl ( vid_fd, VIDIOC_S_CTRL, &vid_control ) < 0 )
{
if ( errno != ERANGE )
Error( "Unable to set hue: %s", strerror(errno) )
else
Warning( "Given hue value (%d) may be out-of-range", p_hue )
}
}
return( vid_control.value );
}
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( v4l_version == 1 )
{
struct video_picture vid_pic;
memset( &vid_pic, 0, sizeof(video_picture) );
if ( ioctl( vid_fd, 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( vid_fd, VIDIOCSPICT, &vid_pic ) < 0 )
{
Error( "Failed to set picture attributes: %s", strerror(errno) );
return( -1 );
}
}
return( vid_pic.hue );
}
#endif // ZM_HAS_V4L1
return( -1 );
}
int LocalCamera::Colour( int p_colour )
{
#if ZM_HAS_V4L2
if ( v4l_version == 2 )
{
struct v4l2_control vid_control;
memset( &vid_control, 0, sizeof(vid_control) );
vid_control.id = V4L2_CID_SATURATION;
if ( vidioctl( vid_fd, VIDIOC_G_CTRL, &vid_control ) < 0 )
{
if ( errno != EINVAL )
Error( "Unable to query saturation: %s", strerror(errno) )
else
Warning( "Saturation control is not supported" )
}
else if ( p_colour >= 0 )
{
vid_control.value = p_colour;
/* The driver may clamp the value or return ERANGE, ignored here */
if ( vidioctl ( vid_fd, VIDIOC_S_CTRL, &vid_control ) < 0 )
{
if ( errno != ERANGE )
Error( "Unable to set saturation: %s", strerror(errno) )
else
Warning( "Given saturation value (%d) may be out-of-range", p_colour )
}
}
return( vid_control.value );
}
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( v4l_version == 1 )
{
struct video_picture vid_pic;
memset( &vid_pic, 0, sizeof(video_picture) );
if ( ioctl( vid_fd, 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( vid_fd, VIDIOCSPICT, &vid_pic ) < 0 )
{
Error( "Failed to set picture attributes: %s", strerror(errno) );
return( -1 );
}
}
return( vid_pic.colour );
}
#endif // ZM_HAS_V4L1
return( -1 );
}
int LocalCamera::Contrast( int p_contrast )
{
#if ZM_HAS_V4L2
if ( v4l_version == 2 )
{
struct v4l2_control vid_control;
memset( &vid_control, 0, sizeof(vid_control) );
vid_control.id = V4L2_CID_CONTRAST;
if ( vidioctl( vid_fd, VIDIOC_G_CTRL, &vid_control ) < 0 )
{
if ( errno != EINVAL )
Error( "Unable to query contrast: %s", strerror(errno) )
else
Warning( "Contrast control is not supported" )
}
else if ( p_contrast >= 0 )
{
vid_control.value = p_contrast;
/* The driver may clamp the value or return ERANGE, ignored here */
if ( vidioctl ( vid_fd, VIDIOC_S_CTRL, &vid_control ) )
{
if ( errno != ERANGE )
Error( "Unable to set contrast: %s", strerror(errno) )
else
Warning( "Given contrast value (%d) may be out-of-range", p_contrast )
}
}
return( vid_control.value );
}
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( v4l_version == 1 )
{
struct video_picture vid_pic;
memset( &vid_pic, 0, sizeof(video_picture) );
if ( ioctl( vid_fd, 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( vid_fd, VIDIOCSPICT, &vid_pic ) < 0 )
{
Error( "Failed to set picture attributes: %s", strerror(errno) );
return( -1 );
}
}
return( vid_pic.contrast );
}
#endif // ZM_HAS_V4L1
return( -1 );
}
int LocalCamera::PrimeCapture()
{
Initialise();
Debug( 2, "Priming capture" );
#if ZM_HAS_V4L2
if ( v4l_version == 2 )
{
Debug( 3, "Queueing buffers" );
for ( unsigned int frame = 0; frame < v4l2_data.reqbufs.count; frame )
{
struct v4l2_buffer vid_buf;
memset( &vid_buf, 0, sizeof(vid_buf) );
vid_buf.type = v4l2_data.fmt.type;
vid_buf.memory = v4l2_data.reqbufs.memory;
vid_buf.index = frame;
if ( vidioctl( vid_fd, VIDIOC_QBUF, &vid_buf ) < 0 )
Fatal( "Failed to queue buffer %d: %s", frame, strerror(errno) );
}
v4l2_data.bufptr = NULL;
Debug( 3, "Starting video stream" );
//enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
//enum v4l2_buf_type type = v4l2_data.fmt.type;
enum v4l2_buf_type type = (v4l2_buf_type)v4l2_data.fmt.type;
if ( vidioctl( vid_fd, VIDIOC_STREAMON, &type ) < 0 )
Fatal( "Failed to start capture stream: %s", strerror(errno) );
}
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( v4l_version == 1 )
{
for ( int frame = 0; frame < v4l1_data.frames.frames; frame )
{
Debug( 3, "Queueing frame %d", frame );
if ( ioctl( vid_fd, VIDIOCMCAPTURE, &v4l1_data.buffers[frame] ) < 0 )
{
Error( "Capture failure for frame %d: %s", frame, strerror(errno) );
return( -1 );
}
}
}
#endif // ZM_HAS_V4L1
return( 0 );
}
int LocalCamera::PreCapture()
{
Debug( 2, "Pre-capturing" );
return( 0 );
}
int LocalCamera::Capture( Image &image )
{
Debug( 3, "Capturing" );
static uint8_t* buffer = NULL;
static uint8_t* directbuffer = NULL;
static int capture_frame = -1;
int buffer_bytesused = 0;
int captures_per_frame = 1;
if ( channel_count > 1 )
captures_per_frame = config.captures_per_frame;
// Do the capture, unless we are the second or subsequent camera on a channel, in which case just reuse the buffer
if ( channel_prime )
{
#if ZM_HAS_V4L2
if ( v4l_version == 2 )
{
static struct v4l2_buffer vid_buf;
memset( &vid_buf, 0, sizeof(vid_buf) );
vid_buf.type = v4l2_data.fmt.type;
//vid_buf.memory = V4L2_MEMORY_MMAP;
vid_buf.memory = v4l2_data.reqbufs.memory;
Debug( 3, "Capturing %d frames", captures_per_frame );
while ( captures_per_frame )
{
if ( vidioctl( vid_fd, VIDIOC_DQBUF, &vid_buf ) < 0 )
{
if ( errno == EIO )
Warning( "Capture failure, possible signal loss?: %s", strerror(errno) )
else
Error( "Unable to capture frame %d: %s", vid_buf.index, strerror(errno) )
return( -1 );
}
v4l2_data.bufptr = &vid_buf;
capture_frame = v4l2_data.bufptr->index;
if ( --captures_per_frame )
{
if ( vidioctl( vid_fd, VIDIOC_QBUF, &vid_buf ) < 0 )
{
Error( "Unable to requeue buffer %d: %s", vid_buf.index, strerror(errno) );
return( -1 );
}
}
}
Debug( 3, "Captured frame %d/%d from channel %d", capture_frame, v4l2_data.bufptr->sequence, channel );
buffer = (unsigned char *)v4l2_data.buffers[v4l2_data.bufptr->index].start;
buffer_bytesused = v4l2_data.bufptr->bytesused;
if((v4l2_data.fmt.fmt.pix.width * v4l2_data.fmt.fmt.pix.height) != (width * height)) {
Fatal("Captured image dimensions differ: V4L2: %dx%d monitor: %dx%d",v4l2_data.fmt.fmt.pix.width,v4l2_data.fmt.fmt.pix.height,width,height);
}
}
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( v4l_version == 1 )
{
Debug( 3, "Capturing %d frames", captures_per_frame );
while ( captures_per_frame )
{
Debug( 3, "Syncing frame %d", v4l1_data.active_frame );
if ( ioctl( vid_fd, VIDIOCSYNC, &v4l1_data.active_frame ) < 0 )
{
Error( "Sync failure for frame %d buffer %d: %s", v4l1_data.active_frame, captures_per_frame, strerror(errno) );
return( -1 );
}
captures_per_frame--;
if ( captures_per_frame )
{
Debug( 3, "Capturing frame %d", v4l1_data.active_frame );
if ( ioctl( vid_fd, VIDIOCMCAPTURE, &v4l1_data.buffers[v4l1_data.active_frame] ) < 0 )
{
Error( "Capture failure for buffer %d (%d): %s", v4l1_data.active_frame, captures_per_frame, strerror(errno) );
return( -1 );
}
}
}
capture_frame = v4l1_data.active_frame;
Debug( 3, "Captured %d for channel %d", capture_frame, channel );
buffer = v4l1_data.bufptr v4l1_data.frames.offsets[capture_frame];
}
#endif // ZM_HAS_V4L1
} /* prime capture */
if(conversion_type != 0) {
Debug( 3, "Performing format conversion" );
/* Request a writeable buffer of the target image */
directbuffer = image.WriteBuffer(width, height, colours, subpixelorder);
if(directbuffer == NULL) {
Error("Failed requesting writeable buffer for the captured image.");
return (-1);
}
#if HAVE_LIBSWSCALE
if(conversion_type == 1) {
Debug( 9, "Calling sws_scale to perform the conversion" );
/* Use swscale to convert the image directly into the shared memory */
avpicture_fill( (AVPicture *)tmpPicture, directbuffer, imagePixFormat, width, height );
sws_scale( imgConversionContext, capturePictures[capture_frame]->data, capturePictures[capture_frame]->linesize, 0, height, tmpPicture->data, tmpPicture->linesize );
}
#endif
if(conversion_type == 2) {
Debug( 9, "Calling the conversion function" );
/* Call the image conversion function and convert directly into the shared memory */
(*conversion_fptr)(buffer, directbuffer, pixels);
}
else if(conversion_type == 3) {
Debug( 9, "Decoding the JPEG image" );
/* JPEG decoding */
image.DecodeJpeg(buffer, buffer_bytesused, colours, subpixelorder);
}
} else {
Debug( 3, "No format conversion performed. Assigning the image" );
/* No conversion was performed, the image is in the V4L buffers and needs to be copied into the shared memory */
image.Assign( width, height, colours, subpixelorder, buffer, imagesize);
}
return( 0 );
}
int LocalCamera::PostCapture()
{
Debug( 2, "Post-capturing" );
// Requeue the buffer unless we need to switch or are a duplicate camera on a channel
if ( channel_count > 1 || channel_prime )
{
#if ZM_HAS_V4L2
if ( v4l_version == 2 )
{
if ( channel_count > 1 )
{
int next_channel = (channel_index 1)%channel_count;
Debug( 3, "Switching video source to %d", channels[next_channel] );
if ( vidioctl( vid_fd, VIDIOC_S_INPUT, &channels[next_channel] ) < 0 )
{
Error( "Failed to set camera source %d: %s", channels[next_channel], strerror(errno) );
return( -1 );
}
v4l2_std_id stdId = standards[next_channel];
if ( vidioctl( vid_fd, VIDIOC_S_STD, &stdId ) < 0 )
{
Error( "Failed to set video format %d: %s", standards[next_channel], strerror(errno) );
return( -1 );
}
}
Debug( 3, "Requeueing buffer %d", v4l2_data.bufptr->index );
if ( vidioctl( vid_fd, VIDIOC_QBUF, v4l2_data.bufptr ) < 0 )
{
Error( "Unable to requeue buffer %d: %s", v4l2_data.bufptr->index, strerror(errno) )
return( -1 );
}
}
#endif // ZM_HAS_V4L2
#if ZM_HAS_V4L1
if ( v4l_version == 1 )
{
if ( channel_count > 1 )
{
Debug( 3, "Switching video source" );
int next_channel = (channel_index 1)%channel_count;
struct video_channel vid_src;
memset( &vid_src, 0, sizeof(vid_src) );
vid_src.channel = channel;
if ( ioctl( vid_fd, VIDIOCGCHAN, &vid_src) < 0 )
{
Error( "Failed to get camera source %d: %s", channel, strerror(errno) );
return(-1);
}
vid_src.channel = channels[next_channel];
vid_src.norm = standards[next_channel];
vid_src.flags = 0;
vid_src.type = VIDEO_TYPE_CAMERA;
if ( ioctl( vid_fd, VIDIOCSCHAN, &vid_src ) < 0 )
{
Error( "Failed to set camera source %d: %s", channel, strerror(errno) );
return( -1 );
}
}
Debug( 3, "Requeueing frame %d", v4l1_data.active_frame );
if ( ioctl( vid_fd, VIDIOCMCAPTURE, &v4l1_data.buffers[v4l1_data.active_frame] ) < 0 )
{
Error( "Capture failure for frame %d: %s", v4l1_data.active_frame, strerror(errno) );
return( -1 );
}
v4l1_data.active_frame = (v4l1_data.active_frame 1)%v4l1_data.frames.frames;
}
#endif // ZM_HAS_V4L1
}
return( 0 );
}
#endif // ZM_HAS_V4L
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