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extract.c
资源名称：vlc-1.0.5.zip　[点击查看]
上传用户：kjfoods
上传日期：2020-07-06
资源大小：29949k
文件大小：28k
源码类别：

midi

开发平台：

Unix_Linux

extract.c：源码内容
  1. /*****************************************************************************
  2.  * extract.c : Extract RGB components
  3.  *****************************************************************************
  4.  * Copyright (C) 2000-2006 the VideoLAN team
  5.  * $Id: c061884ac2cf26ad6ec8934c408492e04fe0e0c0 $
  6.  *
  7.  * Authors: Antoine Cellerier <dionoea .t videolan d@t org>
  8.  *
  9.  * This program is free software; you can redistribute it and/or modify
  10.  * it under the terms of the GNU General Public License as published by
  11.  * the Free Software Foundation; either version 2 of the License, or
  12.  * (at your option) any later version.
  13.  *
  14.  * This program is distributed in the hope that it will be useful,
  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17.  * GNU General Public License for more details.
  18.  *
  19.  * You should have received a copy of the GNU General Public License
  20.  * along with this program; if not, write to the Free Software
  21.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22.  *****************************************************************************/
  24. /*****************************************************************************
  25.  * Preamble
  26.  *****************************************************************************/
  28. #ifdef HAVE_CONFIG_H
  29. # include "config.h"
  30. #endif
  32. #include <vlc_common.h>
  33. #include <vlc_plugin.h>
  34. #include <vlc_vout.h>
  36. #include "vlc_filter.h"
  37. #include "filter_picture.h"
  39. #include "math.h"
  41. /*****************************************************************************
  42.  * Local prototypes
  43.  *****************************************************************************/
  44. static int  Create      ( vlc_object_t * );
  45. static void Destroy     ( vlc_object_t * );
  47. static picture_t *Filter( filter_t *, picture_t * );
  48. static int ExtractCallback( vlc_object_t *, char const *,
  49.                             vlc_value_t, vlc_value_t, void * );
  51. static void get_red_from_yuv420( picture_t *, picture_t *, int, int, int );
  52. static void get_green_from_yuv420( picture_t *, picture_t *, int, int, int );
  53. static void get_blue_from_yuv420( picture_t *, picture_t *, int, int, int );
  54. static void get_red_from_yuv422( picture_t *, picture_t *, int, int, int );
  55. static void get_green_from_yuv422( picture_t *, picture_t *, int, int, int );
  56. static void get_blue_from_yuv422( picture_t *, picture_t *, int, int, int );
  57. static void make_projection_matrix( filter_t *, int color, int *matrix );
  58. static void get_custom_from_yuv420( picture_t *, picture_t *, int, int, int, int * );
  59. static void get_custom_from_yuv422( picture_t *, picture_t *, int, int, int, int * );
  60. static void get_custom_from_packedyuv422( picture_t *, picture_t *, int * );
  63. #define COMPONENT_TEXT N_("RGB component to extract")
  64. #define COMPONENT_LONGTEXT N_("RGB component to extract. 0 for Red, 1 for Green and 2 for Blue.")
  65. #define FILTER_PREFIX "extract-"
  67. static const int pi_component_values[] = { 0xFF0000, 0x00FF00, 0x0000FF };
  68. static const char *const ppsz_component_descriptions[] = {
  69.     "Red", "Green", "Blue" };
  71. /*****************************************************************************
  72.  * Module descriptor
  73.  *****************************************************************************/
  74. vlc_module_begin ()
  75.     set_description( N_("Extract RGB component video filter") )
  76.     set_shortname( N_("Extract" ))
  77.     set_category( CAT_VIDEO )
  78.     set_subcategory( SUBCAT_VIDEO_VFILTER )
  79.     set_capability( "video filter2", 0 )
  80.     add_shortcut( "extract" )
  82.     add_integer_with_range( FILTER_PREFIX "component", 0xFF0000, 1, 0xFFFFFF,
  83.                  NULL, COMPONENT_TEXT, COMPONENT_LONGTEXT, false )
  84.         change_integer_list( pi_component_values, ppsz_component_descriptions, NULL )
  86.     set_callbacks( Create, Destroy )
  87. vlc_module_end ()
  89. static const char *const ppsz_filter_options[] = {
  90.     "component", NULL
  91. };
  93. enum { RED=0xFF0000, GREEN=0x00FF00, BLUE=0x0000FF };
  94. struct filter_sys_t
  95. {
  96.     vlc_mutex_t lock;
  97.     int *projection_matrix;
  98.     uint32_t i_color;
  99. };
  101. /*****************************************************************************
  102.  * Create
  103.  *****************************************************************************/
  104. static int Create( vlc_object_t *p_this )
  105. {
  106.     filter_t *p_filter = (filter_t *)p_this;
  108.     switch( p_filter->fmt_in.video.i_chroma )
  109.     {
  110.         case VLC_FOURCC('I','4','2','0'):
  111.         case VLC_FOURCC('I','Y','U','V'):
  112.         case VLC_FOURCC('J','4','2','0'):
  113.         case VLC_FOURCC('Y','V','1','2'):
  115.         case VLC_FOURCC('I','4','2','2'):
  116.         case VLC_FOURCC('J','4','2','2'):
  118.         CASE_PACKED_YUV_422
  119.             break;
  121.         default:
  122.             /* We only want planar YUV 4:2:0 or 4:2:2 */
  123.             msg_Err( p_filter, "Unsupported input chroma (%4s)",
  124.                      (char*)&(p_filter->fmt_in.video.i_chroma) );
  125.             return VLC_EGENERIC;
  126.     }
  128.     /* Allocate structure */
  129.     p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
  130.     if( p_filter->p_sys == NULL )
  131.         return VLC_ENOMEM;
  132.     p_filter->p_sys->projection_matrix = malloc( 9 * sizeof( int ) );
  133.     if( !p_filter->p_sys->projection_matrix )
  134.     {
  135.         free( p_filter->p_sys );
  136.         return VLC_ENOMEM;
  137.     }
  139.     config_ChainParse( p_filter, FILTER_PREFIX, ppsz_filter_options,
  140.                        p_filter->p_cfg );
  142.     p_filter->p_sys->i_color = var_CreateGetIntegerCommand( p_filter,
  143.                                                FILTER_PREFIX "component" );
  144.     /* Matrix won't be used for RED, GREEN or BLUE in planar formats */
  145.     make_projection_matrix( p_filter, p_filter->p_sys->i_color,
  146.                             p_filter->p_sys->projection_matrix );
  147.     vlc_mutex_init( &p_filter->p_sys->lock );
  148.     var_AddCallback( p_filter, FILTER_PREFIX "component",
  149.                      ExtractCallback, p_filter->p_sys );
  151.     p_filter->pf_video_filter = Filter;
  153.     return VLC_SUCCESS;
  154. }
  156. /*****************************************************************************
  157.  * Destroy
  158.  *****************************************************************************/
  159. static void Destroy( vlc_object_t *p_this )
  160. {
  161.     filter_t *p_filter = (filter_t *)p_this;
  162.     filter_sys_t *p_sys = p_filter->p_sys;
  164.     var_DelCallback( p_filter, FILTER_PREFIX "component", ExtractCallback,
  165.                      p_sys );
  166.     vlc_mutex_destroy( &p_sys->lock );
  167.     free( p_sys->projection_matrix );
  168.     free( p_sys );
  169. }
  171. /*****************************************************************************
  172.  * Render
  173.  *****************************************************************************/
  174. static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
  175. {
  176.     picture_t *p_outpic;
  177.     filter_sys_t *p_sys = p_filter->p_sys;
  179.     if( !p_pic ) return NULL;
  181.     p_outpic = filter_NewPicture( p_filter );
  182.     if( !p_outpic )
  183.     {
  184.         picture_Release( p_pic );
  185.         return NULL;
  186.     }
  188.     vlc_mutex_lock( &p_sys->lock );
  189.     switch( p_pic->format.i_chroma )
  190.     {
  191.         case VLC_FOURCC('I','4','2','0'):
  192.         case VLC_FOURCC('I','Y','U','V'):
  193.         case VLC_FOURCC('J','4','2','0'):
  194.         case VLC_FOURCC('Y','V','1','2'):
  195.             switch( p_sys->i_color )
  196.             {
  197.                 case RED:
  198.                     get_red_from_yuv420( p_pic, p_outpic,
  199.                                          Y_PLANE, U_PLANE, V_PLANE );
  200.                     break;
  201.                 case GREEN:
  202.                     get_green_from_yuv420( p_pic, p_outpic,
  203.                                            Y_PLANE, U_PLANE, V_PLANE );
  204.                     break;
  205.                 case BLUE:
  206.                     get_blue_from_yuv420( p_pic, p_outpic,
  207.                                           Y_PLANE, U_PLANE, V_PLANE );
  208.                     break;
  209.                 default:
  210.                     get_custom_from_yuv420( p_pic, p_outpic,
  211.                                             Y_PLANE, U_PLANE, V_PLANE,
  212.                                             p_sys->projection_matrix);
  213.                     break;
  214.             }
  215.             break;
  217.         case VLC_FOURCC('I','4','2','2'):
  218.         case VLC_FOURCC('J','4','2','2'):
  219.             switch( p_filter->p_sys->i_color )
  220.             {
  221.                 case RED:
  222.                     get_red_from_yuv422( p_pic, p_outpic,
  223.                                          Y_PLANE, U_PLANE, V_PLANE );
  224.                     break;
  225.                 case GREEN:
  226.                     get_green_from_yuv422( p_pic, p_outpic,
  227.                                            Y_PLANE, U_PLANE, V_PLANE );
  228.                     break;
  229.                 case BLUE:
  230.                     get_blue_from_yuv422( p_pic, p_outpic,
  231.                                           Y_PLANE, U_PLANE, V_PLANE );
  232.                     break;
  233.                 default:
  234.                     get_custom_from_yuv422( p_pic, p_outpic,
  235.                                             Y_PLANE, U_PLANE, V_PLANE,
  236.                                             p_sys->projection_matrix);
  237.                     break;
  238.             }
  239.             break;
  241.         CASE_PACKED_YUV_422
  242.             get_custom_from_packedyuv422( p_pic, p_outpic,
  243.                                           p_sys->projection_matrix );
  244.             break;
  246.         default:
  247.             vlc_mutex_unlock( &p_sys->lock );
  248.             msg_Warn( p_filter, "Unsupported input chroma (%4s)",
  249.                       (char*)&(p_pic->format.i_chroma) );
  250.             picture_Release( p_pic );
  251.             return NULL;
  252.     }
  253.     vlc_mutex_unlock( &p_sys->lock );
  255.     return CopyInfoAndRelease( p_outpic, p_pic );
  256. }
  258. static inline uint8_t crop( int a )
  259. {
  260.     if( a < 0 ) return 0;
  261.     if( a > 255 ) return 255;
  262.     else return (uint8_t)a;
  263. }
  265. #define U 128
  266. #define V 128
  268. static void mmult( double *res, double *a, double *b )
  269. {
  270.     int i, j, k;
  271.     for( i = 0; i < 3; i++ )
  272.     {
  273.         for( j = 0; j < 3; j++ )
  274.         {
  275.             res[ i*3 + j ] = 0.;
  276.             for( k = 0; k < 3; k++ )
  277.             {
  278.                 res[ i*3 + j ] += a[ i*3 + k ] * b[ k*3 + j ];
  279.             }
  280.         }
  281.     }
  282. }
  283. static void make_projection_matrix( filter_t *p_filter, int color, int *matrix )
  284. {
  285.     double left_matrix[9] =
  286.         {  76.24500,  149.68500,  29.07000,
  287.           -43.02765,  -84.47235, 127.50000,
  288.           127.50000, -106.76534, -20.73466 };
  289.     double right_matrix[9] =
  290.         { 257.00392,   0.00000,  360.31950,
  291.           257.00392, -88.44438, -183.53583,
  292.           257.00392, 455.41095,    0.00000 };
  293.     double red = ((double)(( 0xFF0000 & color )>>16))/255.;
  294.     double green = ((double)(( 0x00FF00 & color )>>8))/255.;
  295.     double blue = ((double)( 0x0000FF & color ))/255.;
  296.     double norm = sqrt( red*red + green*green + blue*blue );
  297.     red /= norm;
  298.     green /= norm;
  299.     blue /= norm;
  300.     /* XXX: We might still need to norm the rgb_matrix */
  301.     double rgb_matrix[9] =
  302.         { red*red,    red*green,   red*blue,
  303.           red*green,  green*green, green*blue,
  304.           red*blue,   green*blue,  blue*blue };
  305.     double result1[9];
  306.     double result[9];
  307.     int i;
  308.     msg_Dbg( p_filter, "red: %f", red );
  309.     msg_Dbg( p_filter, "green: %f", green );
  310.     msg_Dbg( p_filter, "blue: %f", blue );
  311.     mmult( result1, rgb_matrix, right_matrix );
  312.     mmult( result, left_matrix, result1 );
  313.     for( i = 0; i < 9; i++ )
  314.     {
  315.         matrix[i] = (int)result[i];
  316.     }
  317.     msg_Dbg( p_filter, "Projection matrix:" );
  318.     msg_Dbg( p_filter, "%6d %6d %6d", matrix[0], matrix[1], matrix[2] );
  319.     msg_Dbg( p_filter, "%6d %6d %6d", matrix[3], matrix[4], matrix[5] );
  320.     msg_Dbg( p_filter, "%6d %6d %6d", matrix[6], matrix[7], matrix[8] );
  321. }
  323. static void get_custom_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
  324.                                     int yp, int up, int vp, int *m )
  325. {
  326.     uint8_t *y1in = p_inpic->p[yp].p_pixels;
  327.     uint8_t *y2in;
  328.     uint8_t *uin  = p_inpic->p[up].p_pixels;
  329.     uint8_t *vin  = p_inpic->p[vp].p_pixels;
  331.     uint8_t *y1out = p_outpic->p[yp].p_pixels;
  332.     uint8_t *y2out;
  333.     uint8_t *uout  = p_outpic->p[up].p_pixels;
  334.     uint8_t *vout  = p_outpic->p[vp].p_pixels;
  336.     const int i_pitch = p_inpic->p[yp].i_pitch;
  337.     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
  338.     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
  340.     const int i_uv_pitch = p_inpic->p[up].i_pitch;
  341.     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
  343.     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
  344.     while( y1in < yend )
  345.     {
  346.         const uint8_t *y1end = y1in + i_visible_pitch;
  347.         y2in  = y1in + i_pitch;
  348.         y2out = y1out + i_pitch;
  349.         while( y1in < y1end )
  350.         {
  351.             *uout++ = crop( (*y1in * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
  352.                       / 65536 + U );
  353.             *vout++ = crop( (*y1in * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
  354.                       / 65536 + V );
  355.             *y1out++ = crop( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
  356.                        / 65536 );
  357.             *y1out++ = crop( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
  358.                        / 65536 );
  359.             *y2out++ = crop( (*y2in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
  360.                        / 65536 );
  361.             *y2out++ = crop( (*y2in++ * m[0] + (*uin++ - U) * m[1] + (*vin++ -V) * m[2])
  362.                        / 65536 );
  363.         }
  364.         y1in  += 2*i_pitch - i_visible_pitch;
  365.         y1out += 2*i_pitch - i_visible_pitch;
  366.         uin   += i_uv_pitch - i_uv_visible_pitch;
  367.         uout  += i_uv_pitch - i_uv_visible_pitch;
  368.         vin   += i_uv_pitch - i_uv_visible_pitch;
  369.         vout  += i_uv_pitch - i_uv_visible_pitch;
  370.     }
  371. }
  372. static void get_custom_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
  373.                                     int yp, int up, int vp, int *m )
  374. {
  375.     uint8_t *y1in = p_inpic->p[yp].p_pixels;
  376.     uint8_t *uin  = p_inpic->p[up].p_pixels;
  377.     uint8_t *vin  = p_inpic->p[vp].p_pixels;
  379.     uint8_t *y1out = p_outpic->p[yp].p_pixels;
  380.     uint8_t *uout  = p_outpic->p[up].p_pixels;
  381.     uint8_t *vout  = p_outpic->p[vp].p_pixels;
  383.     const int i_pitch = p_inpic->p[yp].i_pitch;
  384.     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
  385.     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
  387.     const int i_uv_pitch = p_inpic->p[up].i_pitch;
  388.     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
  390.     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
  391.     while( y1in < yend )
  392.     {
  393.         const uint8_t *y1end = y1in + i_visible_pitch;
  394.         while( y1in < y1end )
  395.         {
  396.             *uout++ = crop( (*y1in * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
  397.                       / 65536 + U );
  398.             *vout++ = crop( (*y1in * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
  399.                       / 65536 + V );
  400.             *y1out++ = crop( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
  401.                        / 65536 );
  402.             *y1out++ = crop( (*y1in++ * m[0] + (*uin++ -U) * m[1] + (*vin++ -V) * m[2])
  403.                        / 65536 );
  404.         }
  405.         y1in  += i_pitch - i_visible_pitch;
  406.         y1out += i_pitch - i_visible_pitch;
  407.         uin   += i_uv_pitch - i_uv_visible_pitch;
  408.         uout  += i_uv_pitch - i_uv_visible_pitch;
  409.         vin   += i_uv_pitch - i_uv_visible_pitch;
  410.         vout  += i_uv_pitch - i_uv_visible_pitch;
  411.     }
  412. }
  414. static void get_custom_from_packedyuv422( picture_t *p_inpic,
  415.                                           picture_t *p_outpic,
  416.                                           int *m )
  417. {
  418.     int i_y_offset, i_u_offset, i_v_offset;
  419.     if( GetPackedYuvOffsets( p_inpic->format.i_chroma, &i_y_offset,
  420.                          &i_u_offset, &i_v_offset ) != VLC_SUCCESS )
  421.         return;
  423.     uint8_t *yin = p_inpic->p->p_pixels + i_y_offset;
  424.     uint8_t *uin = p_inpic->p->p_pixels + i_u_offset;
  425.     uint8_t *vin = p_inpic->p->p_pixels + i_v_offset;
  427.     uint8_t *yout = p_outpic->p->p_pixels + i_y_offset;
  428.     uint8_t *uout = p_outpic->p->p_pixels + i_u_offset;
  429.     uint8_t *vout = p_outpic->p->p_pixels + i_v_offset;
  431.     const int i_pitch = p_inpic->p->i_pitch;
  432.     const int i_visible_pitch = p_inpic->p->i_visible_pitch;
  433.     const int i_visible_lines = p_inpic->p->i_visible_lines;
  435.     const uint8_t *yend = yin + i_visible_lines * i_pitch;
  436.     while( yin < yend )
  437.     {
  438.         const uint8_t *ylend = yin + i_visible_pitch;
  439.         while( yin < ylend )
  440.         {
  441.             *uout = crop( (*yin * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
  442.                       / 65536 + U );
  443.             uout += 4;
  444.             *vout = crop( (*yin * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
  445.                      / 65536 + V );
  446.             vout += 4;
  447.             *yout = crop( (*yin * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
  448.                        / 65536 );
  449.             yin  += 2;
  450.             yout += 2;
  451.             *yout = crop( (*yin * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
  452.                        / 65536 );
  453.             yin  += 2;
  454.             yout += 2;
  455.             uin  += 4;
  456.             vin  += 4;
  457.         }
  458.         yin  += i_pitch - i_visible_pitch;
  459.         yout += i_pitch - i_visible_pitch;
  460.         uin  += i_pitch - i_visible_pitch;
  461.         uout += i_pitch - i_visible_pitch;
  462.         vin  += i_pitch - i_visible_pitch;
  463.         vout += i_pitch - i_visible_pitch;
  464.     }
  465. }
  467. static void get_red_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
  468.                                  int yp, int up, int vp )
  469. {
  470.     uint8_t *y1in = p_inpic->p[yp].p_pixels;
  471.     uint8_t *y2in;
  472.     uint8_t *vin  = p_inpic->p[vp].p_pixels;
  474.     uint8_t *y1out = p_outpic->p[yp].p_pixels;
  475.     uint8_t *y2out;
  476.     uint8_t *uout  = p_outpic->p[up].p_pixels;
  477.     uint8_t *vout  = p_outpic->p[vp].p_pixels;
  479.     const int i_pitch = p_inpic->p[yp].i_pitch;
  480.     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
  481.     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
  483.     const int i_uv_pitch = p_inpic->p[up].i_pitch;
  484.     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
  486.     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
  487.     while( y1in < yend )
  488.     {
  489.         const uint8_t *y1end = y1in + i_visible_pitch;
  490.         y2in  = y1in + i_pitch;
  491.         y2out = y1out + i_pitch;
  492.         while( y1in < y1end )
  493.         {
  494. /*
  495. 19595   0   27473
  496. -11058  0   -15504
  497. 32768   0   45941
  498. */
  499.             *uout++ = crop( (*y1in * -11058 + (*vin - V) * -15504)
  500.                       / 65536 + U );
  501.             *vout++ = crop( (*y1in * 32768 + (*vin - V) * 45941)
  502.                       / 65536 + V );
  503.             *y1out++ = crop( (*y1in++ * 19595 + (*vin - V) * 27473)
  504.                        / 65536 );
  505.             *y1out++ = crop( (*y1in++ * 19595 + (*vin - V) * 27473)
  506.                        / 65536 );
  507.             *y2out++ = crop( (*y2in++ * 19594 + (*vin - V) * 27473)
  508.                        / 65536 );
  509.             *y2out++ = crop( (*y2in++ * 19594 + (*vin++ - V) * 27473)
  510.                        / 65536 );
  511.         }
  512.         y1in  += 2*i_pitch - i_visible_pitch;
  513.         y1out += 2*i_pitch - i_visible_pitch;
  514.         uout  += i_uv_pitch - i_uv_visible_pitch;
  515.         vin   += i_uv_pitch - i_uv_visible_pitch;
  516.         vout  += i_uv_pitch - i_uv_visible_pitch;
  517.     }
  518. }
  520. static void get_green_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
  521.                                  int yp, int up, int vp )
  522. {
  523.     uint8_t *y1in = p_inpic->p[yp].p_pixels;
  524.     uint8_t *y2in;
  525.     uint8_t *uin  = p_inpic->p[up].p_pixels;
  526.     uint8_t *vin  = p_inpic->p[vp].p_pixels;
  528.     uint8_t *y1out = p_outpic->p[yp].p_pixels;
  529.     uint8_t *y2out;
  530.     uint8_t *uout  = p_outpic->p[up].p_pixels;
  531.     uint8_t *vout  = p_outpic->p[vp].p_pixels;
  533.     const int i_pitch = p_inpic->p[yp].i_pitch;
  534.     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
  535.     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
  537.     const int i_uv_pitch = p_inpic->p[up].i_pitch;
  538.     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
  540.     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
  541.     while( y1in < yend )
  542.     {
  543.         const uint8_t *y1end = y1in + i_visible_pitch;
  544.         y2in  = y1in + i_pitch;
  545.         y2out = y1out + i_pitch;
  546.         while( y1in < y1end )
  547.         {
  548. /*
  549. 38470   -13239  -27473
  550. -21710  7471    15504
  551. -27439  9443    19595
  552. */
  553.             *uout++ = crop( (*y1in * -21710 + (*uin-U) * 7471 + (*vin-V) * 15504)
  554.                       / 65536 + U );
  555.             *vout++ = crop( (*y1in * -27439 + (*uin-U) * 9443 + (*vin-V) * 19595)
  556.                       / 65536 + V );
  557.             *y1out++ = crop( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
  558.                        / 65536 );
  559.             *y1out++ = crop( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
  560.                        / 65536 );
  561.             *y2out++ = crop( (*y2in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
  562.                        / 65536 );
  563.             *y2out++ = crop( (*y2in++ * 38470 + (*uin++ - U) * -13239 + (*vin++ -V) * -27473)
  564.                        / 65536 );
  565.         }
  566.         y1in  += 2*i_pitch - i_visible_pitch;
  567.         y1out += 2*i_pitch - i_visible_pitch;
  568.         uin   += i_uv_pitch - i_uv_visible_pitch;
  569.         uout  += i_uv_pitch - i_uv_visible_pitch;
  570.         vin   += i_uv_pitch - i_uv_visible_pitch;
  571.         vout  += i_uv_pitch - i_uv_visible_pitch;
  572.     }
  573. }
  575. static void get_blue_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
  576.                                  int yp, int up, int vp )
  577. {
  578.     uint8_t *y1in = p_inpic->p[yp].p_pixels;
  579.     uint8_t *y2in;
  580.     uint8_t *uin  = p_inpic->p[up].p_pixels;
  582.     uint8_t *y1out = p_outpic->p[yp].p_pixels;
  583.     uint8_t *y2out;
  584.     uint8_t *uout  = p_outpic->p[up].p_pixels;
  585.     uint8_t *vout  = p_outpic->p[vp].p_pixels;
  587.     const int i_pitch = p_inpic->p[yp].i_pitch;
  588.     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
  589.     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
  591.     const int i_uv_pitch = p_inpic->p[up].i_pitch;
  592.     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
  594.     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
  595.     while( y1in < yend )
  596.     {
  597.         const uint8_t *y1end = y1in + i_visible_pitch;
  598.         y2in  = y1in + i_pitch;
  599.         y2out = y1out + i_pitch;
  600.         while( y1in < y1end )
  601.         {
  602. /*
  603. 7471    13239   0
  604. 32768   58065   0
  605. -5329   -9443   0
  606. */
  607.             *uout++ = crop( (*y1in* 32768 + (*uin - U) * 58065 )
  608.                       / 65536 + U );
  609.             *vout++ = crop( (*y1in * -5329 + (*uin - U) * -9443 )
  610.                       / 65536 + V );
  611.             *y1out++ = crop( (*y1in++ * 7471 + (*uin - U) * 13239 )
  612.                        / 65536 );
  613.             *y1out++ = crop( (*y1in++ * 7471 + (*uin - U) * 13239 )
  614.                        / 65536 );
  615.             *y2out++ = crop( (*y2in++ * 7471 + (*uin - U) * 13239 )
  616.                        / 65536 );
  617.             *y2out++ = crop( (*y2in++ * 7471 + (*uin++ - U) * 13239 )
  618.                        / 65536 );
  619.         }
  620.         y1in  += 2*i_pitch - i_visible_pitch;
  621.         y1out += 2*i_pitch - i_visible_pitch;
  622.         uin   += i_uv_pitch - i_uv_visible_pitch;
  623.         uout  += i_uv_pitch - i_uv_visible_pitch;
  624.         vout  += i_uv_pitch - i_uv_visible_pitch;
  625.     }
  626. }
  628. static void get_red_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
  629.                                  int yp, int up, int vp )
  630. {
  631.     uint8_t *y1in = p_inpic->p[yp].p_pixels;
  632.     uint8_t *vin  = p_inpic->p[vp].p_pixels;
  634.     uint8_t *y1out = p_outpic->p[yp].p_pixels;
  635.     uint8_t *uout  = p_outpic->p[up].p_pixels;
  636.     uint8_t *vout  = p_outpic->p[vp].p_pixels;
  638.     const int i_pitch = p_inpic->p[yp].i_pitch;
  639.     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
  640.     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
  642.     const int i_uv_pitch = p_inpic->p[up].i_pitch;
  643.     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
  645.     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
  646.     while( y1in < yend )
  647.     {
  648.         const uint8_t *y1end = y1in + i_visible_pitch;
  649.         while( y1in < y1end )
  650.         {
  651. /*
  652. 19595   0   27473
  653. -11058  0   -15504
  654. 32768   0   45941
  655. */
  656.             *uout++ = crop( (*y1in * -11058 + (*vin - V) * -15504)
  657.                       / 65536 + U );
  658.             *vout++ = crop( (*y1in * 32768 + (*vin - V) * 45941)
  659.                       / 65536 + V );
  660.             *y1out++ = crop( (*y1in++ * 19595 + (*vin - V) * 27473)
  661.                        / 65536 );
  662.             *y1out++ = crop( (*y1in++ * 19595 + (*vin++ - V) * 27473)
  663.                        / 65536 );
  664.         }
  665.         y1in  += i_pitch - i_visible_pitch;
  666.         y1out += i_pitch - i_visible_pitch;
  667.         uout  += i_uv_pitch - i_uv_visible_pitch;
  668.         vin   += i_uv_pitch - i_uv_visible_pitch;
  669.         vout  += i_uv_pitch - i_uv_visible_pitch;
  670.     }
  671. }
  673. static void get_green_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
  674.                                    int yp, int up, int vp )
  675. {
  676.     uint8_t *y1in = p_inpic->p[yp].p_pixels;
  677.     uint8_t *uin  = p_inpic->p[up].p_pixels;
  678.     uint8_t *vin  = p_inpic->p[vp].p_pixels;
  680.     uint8_t *y1out = p_outpic->p[yp].p_pixels;
  681.     uint8_t *uout  = p_outpic->p[up].p_pixels;
  682.     uint8_t *vout  = p_outpic->p[vp].p_pixels;
  684.     const int i_pitch = p_inpic->p[yp].i_pitch;
  685.     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
  686.     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
  688.     const int i_uv_pitch = p_inpic->p[up].i_pitch;
  689.     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
  691.     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
  692.     while( y1in < yend )
  693.     {
  694.         const uint8_t *y1end = y1in + i_visible_pitch;
  695.         while( y1in < y1end )
  696.         {
  697. /*
  698. 38470   -13239  -27473
  699. -21710  7471    15504
  700. -27439  9443    19595
  701. */
  702.             *uout++ = crop( (*y1in * -21710 + (*uin-U) * 7471 + (*vin-V) * 15504)
  703.                       / 65536 + U );
  704.             *vout++ = crop( (*y1in * -27439 + (*uin-U) * 9443 + (*vin-V) * 19595)
  705.                       / 65536 + V );
  706.             *y1out++ = crop( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
  707.                        / 65536 );
  708.             *y1out++ = crop( (*y1in++ * 38470 + (*uin++-U) * -13239 + (*vin++-V) * -27473)
  709.                        / 65536 );
  710.         }
  711.         y1in  += i_pitch - i_visible_pitch;
  712.         y1out += i_pitch - i_visible_pitch;
  713.         uin   += i_uv_pitch - i_uv_visible_pitch;
  714.         uout  += i_uv_pitch - i_uv_visible_pitch;
  715.         vin   += i_uv_pitch - i_uv_visible_pitch;
  716.         vout  += i_uv_pitch - i_uv_visible_pitch;
  717.     }
  718. }
  720. static void get_blue_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
  721.                                  int yp, int up, int vp )
  722. {
  723.     uint8_t *y1in = p_inpic->p[yp].p_pixels;
  724.     uint8_t *uin  = p_inpic->p[up].p_pixels;
  726.     uint8_t *y1out = p_outpic->p[yp].p_pixels;
  727.     uint8_t *uout  = p_outpic->p[up].p_pixels;
  728.     uint8_t *vout  = p_outpic->p[vp].p_pixels;
  730.     const int i_pitch = p_inpic->p[yp].i_pitch;
  731.     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
  732.     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
  734.     const int i_uv_pitch = p_inpic->p[up].i_pitch;
  735.     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
  737.     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
  738.     while( y1in < yend )
  739.     {
  740.         const uint8_t *y1end = y1in + i_visible_pitch;
  741.         while( y1in < y1end )
  742.         {
  743. /*
  744. 7471    13239   0
  745. 32768   58065   0
  746. -5329   -9443   0
  747. */
  748.             *uout++ = crop( (*y1in* 32768 + (*uin - U) * 58065 )
  749.                       / 65536 + U );
  750.             *vout++ = crop( (*y1in * -5329 + (*uin - U) * -9443 )
  751.                       / 65536 + V );
  752.             *y1out++ = crop( (*y1in++ * 7471 + (*uin - U) * 13239 )
  753.                        / 65536 );
  754.             *y1out++ = crop( (*y1in++ * 7471 + (*uin++ - U) * 13239 )
  755.                        / 65536 );
  756.         }
  757.         y1in  += i_pitch - i_visible_pitch;
  758.         y1out += i_pitch - i_visible_pitch;
  759.         uin   += i_uv_pitch - i_uv_visible_pitch;
  760.         uout  += i_uv_pitch - i_uv_visible_pitch;
  761.         vout  += i_uv_pitch - i_uv_visible_pitch;
  762.     }
  763. }
  765. static int ExtractCallback( vlc_object_t *p_this, char const *psz_var,
  766.                             vlc_value_t oldval, vlc_value_t newval,
  767.                             void *p_data )
  768. {
  769.     VLC_UNUSED(oldval);
  770.     filter_sys_t *p_sys = (filter_sys_t *)p_data;
  772.     vlc_mutex_lock( &p_sys->lock );
  773.     if( !strcmp( psz_var, FILTER_PREFIX "component" ) )
  774.     {
  775.         p_sys->i_color = newval.i_int;
  776.         /* Matrix won't be used for RED, GREEN or BLUE in planar formats */
  777.         make_projection_matrix( (filter_t *)p_this, p_sys->i_color,
  778.                                 p_sys->projection_matrix );
  779.     }
  780.     else
  781.     {
  782.         msg_Warn( p_this, "Unknown callback command." );
  783.     }
  784.     vlc_mutex_unlock( &p_sys->lock );
  785.     return VLC_SUCCESS;
  786. }