// // 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 #include #include #include #include #include #include #include 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, bool p_v4l_multi_buffer, unsigned int p_v4l_captures_per_frame, 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); v4l_multi_buffer = p_v4l_multi_buffer; v4l_captures_per_frame = p_v4l_captures_per_frame; 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 /* 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 ) { Debug( 3, "Channel count is %d", channel_count ); if ( v4l_multi_buffer ){ v4l2_data.reqbufs.count = 2*channel_count; } else { v4l2_data.reqbufs.count = 1; } } else { v4l2_data.reqbufs.count = 8; } Debug( 3, "Request buffers count is %d", v4l2_data.reqbufs.count ); 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 < (v4l_multi_buffer?2:1) ) Fatal( "Insufficient buffer memory %d on video device", v4l2_data.reqbufs.count ); Debug( 3, "Setting up data buffers: Channels %d MultiBuffer %d Buffers: %d", channel_count, v4l_multi_buffer, 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 && !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 || errno == ENODATA ) { 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 = v4l_captures_per_frame; if ( captures_per_frame <= 0 ) { captures_per_frame = 1; Warning( "Invalid Captures Per Frame setting: %d", 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