adjust.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:22k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * adjust.c : Contrast/Hue/Saturation/Brightness video plugin for vlc
- *****************************************************************************
- * Copyright (C) 2000-2006 the VideoLAN team
- * $Id: fa671dc2127d58b5e3f26fd91cee72961f1af140 $
- *
- * Authors: Simon Latapie <garf@via.ecp.fr>
- * Antoine Cellerier <dionoea -at- videolan d0t org>
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <errno.h>
- #include <math.h>
- #include <vlc_common.h>
- #include <vlc_plugin.h>
- #include <vlc_sout.h>
- #include <vlc_vout.h>
- #include "vlc_filter.h"
- #include "filter_picture.h"
- #ifndef M_PI
- # define M_PI 3.14159265358979323846
- #endif
- #define eight_times( x ) x x x x x x x x
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- static int Create ( vlc_object_t * );
- static void Destroy ( vlc_object_t * );
- static picture_t *FilterPlanar( filter_t *, picture_t * );
- static picture_t *FilterPacked( filter_t *, picture_t * );
- static int AdjustCallback( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval,
- void *p_data );
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- #define THRES_TEXT N_("Brightness threshold")
- #define THRES_LONGTEXT N_("When this mode is enabled, pixels will be "
- "shown as black or white. The threshold value will be the brighness "
- "defined below." )
- #define CONT_TEXT N_("Image contrast (0-2)")
- #define CONT_LONGTEXT N_("Set the image contrast, between 0 and 2. Defaults to 1.")
- #define HUE_TEXT N_("Image hue (0-360)")
- #define HUE_LONGTEXT N_("Set the image hue, between 0 and 360. Defaults to 0.")
- #define SAT_TEXT N_("Image saturation (0-3)")
- #define SAT_LONGTEXT N_("Set the image saturation, between 0 and 3. Defaults to 1.")
- #define LUM_TEXT N_("Image brightness (0-2)")
- #define LUM_LONGTEXT N_("Set the image brightness, between 0 and 2. Defaults to 1.")
- #define GAMMA_TEXT N_("Image gamma (0-10)")
- #define GAMMA_LONGTEXT N_("Set the image gamma, between 0.01 and 10. Defaults to 1.")
- vlc_module_begin ()
- set_description( N_("Image properties filter") )
- set_shortname( N_("Image adjust" ))
- set_category( CAT_VIDEO )
- set_subcategory( SUBCAT_VIDEO_VFILTER )
- set_capability( "video filter2", 0 )
- add_float_with_range( "contrast", 1.0, 0.0, 2.0, NULL,
- CONT_TEXT, CONT_LONGTEXT, false )
- add_float_with_range( "brightness", 1.0, 0.0, 2.0, NULL,
- LUM_TEXT, LUM_LONGTEXT, false )
- add_integer_with_range( "hue", 0, 0, 360, NULL,
- HUE_TEXT, HUE_LONGTEXT, false )
- add_float_with_range( "saturation", 1.0, 0.0, 3.0, NULL,
- SAT_TEXT, SAT_LONGTEXT, false )
- add_float_with_range( "gamma", 1.0, 0.01, 10.0, NULL,
- GAMMA_TEXT, GAMMA_LONGTEXT, false )
- add_bool( "brightness-threshold", 0, NULL,
- THRES_TEXT, THRES_LONGTEXT, false )
- add_shortcut( "adjust" )
- set_callbacks( Create, Destroy )
- vlc_module_end ()
- static const char *const ppsz_filter_options[] = {
- "contrast", "brightness", "hue", "saturation", "gamma",
- "brightness-threshold", NULL
- };
- /*****************************************************************************
- * filter_sys_t: adjust filter method descriptor
- *****************************************************************************/
- struct filter_sys_t
- {
- vlc_mutex_t lock;
- double f_contrast;
- double f_brightness;
- int i_hue;
- double f_saturation;
- double f_gamma;
- bool b_brightness_threshold;
- };
- /*****************************************************************************
- * Create: allocates adjust video filter
- *****************************************************************************/
- static int Create( vlc_object_t *p_this )
- {
- filter_t *p_filter = (filter_t *)p_this;
- filter_sys_t *p_sys;
- switch( p_filter->fmt_in.video.i_chroma )
- {
- CASE_PLANAR_YUV
- /* Planar YUV */
- p_filter->pf_video_filter = FilterPlanar;
- break;
- CASE_PACKED_YUV_422
- /* Packed YUV 4:2:2 */
- p_filter->pf_video_filter = FilterPacked;
- break;
- default:
- msg_Err( p_filter, "Unsupported input chroma (%4s)",
- (char*)&(p_filter->fmt_in.video.i_chroma) );
- return VLC_EGENERIC;
- }
- if( p_filter->fmt_in.video.i_chroma != p_filter->fmt_out.video.i_chroma )
- {
- msg_Err( p_filter, "Input and output chromas don't match" );
- return VLC_EGENERIC;
- }
- /* Allocate structure */
- p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
- if( p_filter->p_sys == NULL )
- return VLC_ENOMEM;
- p_sys = p_filter->p_sys;
- /* needed to get options passed in transcode using the
- * adjust{name=value} syntax */
- config_ChainParse( p_filter, "", ppsz_filter_options,
- p_filter->p_cfg );
- p_sys->f_contrast = var_CreateGetFloatCommand( p_filter, "contrast" );
- p_sys->f_brightness = var_CreateGetFloatCommand( p_filter, "brightness" );
- p_sys->i_hue = var_CreateGetIntegerCommand( p_filter, "hue" );
- p_sys->f_saturation = var_CreateGetFloatCommand( p_filter, "saturation" );
- p_sys->f_gamma = var_CreateGetFloatCommand( p_filter, "gamma" );
- p_sys->b_brightness_threshold =
- var_CreateGetBoolCommand( p_filter, "brightness-threshold" );
- vlc_mutex_init( &p_sys->lock );
- var_AddCallback( p_filter, "contrast", AdjustCallback, p_sys );
- var_AddCallback( p_filter, "brightness", AdjustCallback, p_sys );
- var_AddCallback( p_filter, "hue", AdjustCallback, p_sys );
- var_AddCallback( p_filter, "saturation", AdjustCallback, p_sys );
- var_AddCallback( p_filter, "gamma", AdjustCallback, p_sys );
- var_AddCallback( p_filter, "brightness-threshold",
- AdjustCallback, p_sys );
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Destroy: destroy adjust video filter
- *****************************************************************************/
- static void Destroy( vlc_object_t *p_this )
- {
- filter_t *p_filter = (filter_t *)p_this;
- filter_sys_t *p_sys = p_filter->p_sys;
- var_DelCallback( p_filter, "contrast", AdjustCallback, p_sys );
- var_DelCallback( p_filter, "brightness", AdjustCallback, p_sys );
- var_DelCallback( p_filter, "hue", AdjustCallback, p_sys );
- var_DelCallback( p_filter, "saturation", AdjustCallback, p_sys );
- var_DelCallback( p_filter, "gamma", AdjustCallback, p_sys );
- var_DelCallback( p_filter, "brightness-threshold",
- AdjustCallback, p_sys );
- vlc_mutex_destroy( &p_sys->lock );
- free( p_sys );
- }
- /*****************************************************************************
- * Run the filter on a Planar YUV picture
- *****************************************************************************/
- static picture_t *FilterPlanar( filter_t *p_filter, picture_t *p_pic )
- {
- int pi_luma[256];
- int pi_gamma[256];
- picture_t *p_outpic;
- uint8_t *p_in, *p_in_v, *p_in_end, *p_line_end;
- uint8_t *p_out, *p_out_v;
- bool b_thres;
- double f_hue;
- double f_gamma;
- int32_t i_cont, i_lum;
- int i_sat, i_sin, i_cos, i_x, i_y;
- int i;
- filter_sys_t *p_sys = p_filter->p_sys;
- if( !p_pic ) return NULL;
- p_outpic = filter_NewPicture( p_filter );
- if( !p_outpic )
- {
- picture_Release( p_pic );
- return NULL;
- }
- /* Get variables */
- vlc_mutex_lock( &p_sys->lock );
- i_cont = (int)( p_sys->f_contrast * 255 );
- i_lum = (int)( (p_sys->f_brightness - 1.0)*255 );
- f_hue = (float)( p_sys->i_hue * M_PI / 180 );
- i_sat = (int)( p_sys->f_saturation * 256 );
- f_gamma = 1.0 / p_sys->f_gamma;
- b_thres = p_sys->b_brightness_threshold;
- vlc_mutex_unlock( &p_sys->lock );
- /*
- * Threshold mode drops out everything about luma, contrast and gamma.
- */
- if( b_thres != true )
- {
- /* Contrast is a fast but kludged function, so I put this gap to be
- * cleaner :) */
- i_lum += 128 - i_cont / 2;
- /* Fill the gamma lookup table */
- for( i = 0 ; i < 256 ; i++ )
- {
- pi_gamma[ i ] = clip_uint8_vlc( pow(i / 255.0, f_gamma) * 255.0);
- }
- /* Fill the luma lookup table */
- for( i = 0 ; i < 256 ; i++ )
- {
- pi_luma[ i ] = pi_gamma[clip_uint8_vlc( i_lum + i_cont * i / 256)];
- }
- }
- else
- {
- /*
- * We get luma as threshold value: the higher it is, the darker is
- * the image. Should I reverse this?
- */
- for( i = 0 ; i < 256 ; i++ )
- {
- pi_luma[ i ] = (i < i_lum) ? 0 : 255;
- }
- /*
- * Desaturates image to avoid that strange yellow halo...
- */
- i_sat = 0;
- }
- /*
- * Do the Y plane
- */
- p_in = p_pic->p[Y_PLANE].p_pixels;
- p_in_end = p_in + p_pic->p[Y_PLANE].i_visible_lines
- * p_pic->p[Y_PLANE].i_pitch - 8;
- p_out = p_outpic->p[Y_PLANE].p_pixels;
- for( ; p_in < p_in_end ; )
- {
- p_line_end = p_in + p_pic->p[Y_PLANE].i_visible_pitch - 8;
- for( ; p_in < p_line_end ; )
- {
- /* Do 8 pixels at a time */
- *p_out++ = pi_luma[ *p_in++ ]; *p_out++ = pi_luma[ *p_in++ ];
- *p_out++ = pi_luma[ *p_in++ ]; *p_out++ = pi_luma[ *p_in++ ];
- *p_out++ = pi_luma[ *p_in++ ]; *p_out++ = pi_luma[ *p_in++ ];
- *p_out++ = pi_luma[ *p_in++ ]; *p_out++ = pi_luma[ *p_in++ ];
- }
- p_line_end += 8;
- for( ; p_in < p_line_end ; )
- {
- *p_out++ = pi_luma[ *p_in++ ];
- }
- p_in += p_pic->p[Y_PLANE].i_pitch
- - p_pic->p[Y_PLANE].i_visible_pitch;
- p_out += p_outpic->p[Y_PLANE].i_pitch
- - p_outpic->p[Y_PLANE].i_visible_pitch;
- }
- /*
- * Do the U and V planes
- */
- p_in = p_pic->p[U_PLANE].p_pixels;
- p_in_v = p_pic->p[V_PLANE].p_pixels;
- p_in_end = p_in + p_pic->p[U_PLANE].i_visible_lines
- * p_pic->p[U_PLANE].i_pitch - 8;
- p_out = p_outpic->p[U_PLANE].p_pixels;
- p_out_v = p_outpic->p[V_PLANE].p_pixels;
- i_sin = sin(f_hue) * 256;
- i_cos = cos(f_hue) * 256;
- i_x = ( cos(f_hue) + sin(f_hue) ) * 32768;
- i_y = ( cos(f_hue) - sin(f_hue) ) * 32768;
- if ( i_sat > 256 )
- {
- #define WRITE_UV_CLIP()
- i_u = *p_in++ ; i_v = *p_in_v++ ;
- *p_out++ = clip_uint8_vlc( (( ((i_u * i_cos + i_v * i_sin - i_x) >> 8)
- * i_sat) >> 8) + 128);
- *p_out_v++ = clip_uint8_vlc( (( ((i_v * i_cos - i_u * i_sin - i_y) >> 8)
- * i_sat) >> 8) + 128)
- uint8_t i_u, i_v;
- for( ; p_in < p_in_end ; )
- {
- p_line_end = p_in + p_pic->p[U_PLANE].i_visible_pitch - 8;
- for( ; p_in < p_line_end ; )
- {
- /* Do 8 pixels at a time */
- WRITE_UV_CLIP(); WRITE_UV_CLIP();
- WRITE_UV_CLIP(); WRITE_UV_CLIP();
- WRITE_UV_CLIP(); WRITE_UV_CLIP();
- WRITE_UV_CLIP(); WRITE_UV_CLIP();
- }
- p_line_end += 8;
- for( ; p_in < p_line_end ; )
- {
- WRITE_UV_CLIP();
- }
- p_in += p_pic->p[U_PLANE].i_pitch
- - p_pic->p[U_PLANE].i_visible_pitch;
- p_in_v += p_pic->p[V_PLANE].i_pitch
- - p_pic->p[V_PLANE].i_visible_pitch;
- p_out += p_outpic->p[U_PLANE].i_pitch
- - p_outpic->p[U_PLANE].i_visible_pitch;
- p_out_v += p_outpic->p[V_PLANE].i_pitch
- - p_outpic->p[V_PLANE].i_visible_pitch;
- }
- #undef WRITE_UV_CLIP
- }
- else
- {
- #define WRITE_UV()
- i_u = *p_in++ ; i_v = *p_in_v++ ;
- *p_out++ = (( ((i_u * i_cos + i_v * i_sin - i_x) >> 8)
- * i_sat) >> 8) + 128;
- *p_out_v++ = (( ((i_v * i_cos - i_u * i_sin - i_y) >> 8)
- * i_sat) >> 8) + 128
- uint8_t i_u, i_v;
- for( ; p_in < p_in_end ; )
- {
- p_line_end = p_in + p_pic->p[U_PLANE].i_visible_pitch - 8;
- for( ; p_in < p_line_end ; )
- {
- /* Do 8 pixels at a time */
- WRITE_UV(); WRITE_UV(); WRITE_UV(); WRITE_UV();
- WRITE_UV(); WRITE_UV(); WRITE_UV(); WRITE_UV();
- }
- p_line_end += 8;
- for( ; p_in < p_line_end ; )
- {
- WRITE_UV();
- }
- p_in += p_pic->p[U_PLANE].i_pitch
- - p_pic->p[U_PLANE].i_visible_pitch;
- p_in_v += p_pic->p[V_PLANE].i_pitch
- - p_pic->p[V_PLANE].i_visible_pitch;
- p_out += p_outpic->p[U_PLANE].i_pitch
- - p_outpic->p[U_PLANE].i_visible_pitch;
- p_out_v += p_outpic->p[V_PLANE].i_pitch
- - p_outpic->p[V_PLANE].i_visible_pitch;
- }
- #undef WRITE_UV
- }
- return CopyInfoAndRelease( p_outpic, p_pic );
- }
- /*****************************************************************************
- * Run the filter on a Packed YUV picture
- *****************************************************************************/
- static picture_t *FilterPacked( filter_t *p_filter, picture_t *p_pic )
- {
- int pi_luma[256];
- int pi_gamma[256];
- picture_t *p_outpic;
- uint8_t *p_in, *p_in_v, *p_in_end, *p_line_end;
- uint8_t *p_out, *p_out_v;
- int i_y_offset, i_u_offset, i_v_offset;
- int i_lines, i_visible_lines, i_pitch, i_visible_pitch;
- bool b_thres;
- double f_hue;
- double f_gamma;
- int32_t i_cont, i_lum;
- int i_sat, i_sin, i_cos, i_x, i_y;
- int i;
- filter_sys_t *p_sys = p_filter->p_sys;
- if( !p_pic ) return NULL;
- i_lines = p_pic->p->i_lines;
- i_visible_lines = p_pic->p->i_visible_lines;
- i_pitch = p_pic->p->i_pitch;
- i_visible_pitch = p_pic->p->i_visible_pitch;
- if( GetPackedYuvOffsets( p_pic->format.i_chroma, &i_y_offset,
- &i_u_offset, &i_v_offset ) != VLC_SUCCESS )
- {
- msg_Warn( p_filter, "Unsupported input chroma (%4s)",
- (char*)&(p_pic->format.i_chroma) );
- picture_Release( p_pic );
- return NULL;
- }
- p_outpic = p_filter->pf_vout_buffer_new( p_filter );
- if( !p_outpic )
- {
- msg_Warn( p_filter, "can't get output picture" );
- picture_Release( p_pic );
- return NULL;
- }
- /* Get variables */
- vlc_mutex_lock( &p_sys->lock );
- i_cont = (int)( p_sys->f_contrast * 255 );
- i_lum = (int)( (p_sys->f_brightness - 1.0)*255 );
- f_hue = (float)( p_sys->i_hue * M_PI / 180 );
- i_sat = (int)( p_sys->f_saturation * 256 );
- f_gamma = 1.0 / p_sys->f_gamma;
- b_thres = p_sys->b_brightness_threshold;
- vlc_mutex_unlock( &p_sys->lock );
- /*
- * Threshold mode drops out everything about luma, contrast and gamma.
- */
- if( b_thres != true )
- {
- /* Contrast is a fast but kludged function, so I put this gap to be
- * cleaner :) */
- i_lum += 128 - i_cont / 2;
- /* Fill the gamma lookup table */
- for( i = 0 ; i < 256 ; i++ )
- {
- pi_gamma[ i ] = clip_uint8_vlc( pow(i / 255.0, f_gamma) * 255.0);
- }
- /* Fill the luma lookup table */
- for( i = 0 ; i < 256 ; i++ )
- {
- pi_luma[ i ] = pi_gamma[clip_uint8_vlc( i_lum + i_cont * i / 256)];
- }
- }
- else
- {
- /*
- * We get luma as threshold value: the higher it is, the darker is
- * the image. Should I reverse this?
- */
- for( i = 0 ; i < 256 ; i++ )
- {
- pi_luma[ i ] = (i < i_lum) ? 0 : 255;
- }
- /*
- * Desaturates image to avoid that strange yellow halo...
- */
- i_sat = 0;
- }
- /*
- * Do the Y plane
- */
- p_in = p_pic->p->p_pixels + i_y_offset;
- p_in_end = p_in + p_pic->p->i_visible_lines * p_pic->p->i_pitch - 8 * 4;
- p_out = p_outpic->p->p_pixels + i_y_offset;
- for( ; p_in < p_in_end ; )
- {
- p_line_end = p_in + i_visible_pitch - 8 * 4;
- for( ; p_in < p_line_end ; )
- {
- /* Do 8 pixels at a time */
- *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
- *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
- *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
- *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
- *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
- *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
- *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
- *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
- }
- p_line_end += 8 * 4;
- for( ; p_in < p_line_end ; )
- {
- *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
- }
- p_in += i_pitch - p_pic->p->i_visible_pitch;
- p_out += i_pitch - p_outpic->p->i_visible_pitch;
- }
- /*
- * Do the U and V planes
- */
- p_in = p_pic->p->p_pixels + i_u_offset;
- p_in_v = p_pic->p->p_pixels + i_v_offset;
- p_in_end = p_in + i_visible_lines * i_pitch - 8 * 4;
- p_out = p_outpic->p->p_pixels + i_u_offset;
- p_out_v = p_outpic->p->p_pixels + i_v_offset;
- i_sin = sin(f_hue) * 256;
- i_cos = cos(f_hue) * 256;
- i_x = ( cos(f_hue) + sin(f_hue) ) * 32768;
- i_y = ( cos(f_hue) - sin(f_hue) ) * 32768;
- if ( i_sat > 256 )
- {
- #define WRITE_UV_CLIP()
- i_u = *p_in; p_in += 4; i_v = *p_in_v; p_in_v += 4;
- *p_out = clip_uint8_vlc( (( ((i_u * i_cos + i_v * i_sin - i_x) >> 8)
- * i_sat) >> 8) + 128);
- p_out += 4;
- *p_out_v = clip_uint8_vlc( (( ((i_v * i_cos - i_u * i_sin - i_y) >> 8)
- * i_sat) >> 8) + 128);
- p_out_v += 4
- uint8_t i_u, i_v;
- for( ; p_in < p_in_end ; )
- {
- p_line_end = p_in + i_visible_pitch - 8 * 4;
- for( ; p_in < p_line_end ; )
- {
- /* Do 8 pixels at a time */
- WRITE_UV_CLIP(); WRITE_UV_CLIP();
- WRITE_UV_CLIP(); WRITE_UV_CLIP();
- WRITE_UV_CLIP(); WRITE_UV_CLIP();
- WRITE_UV_CLIP(); WRITE_UV_CLIP();
- }
- p_line_end += 8 * 4;
- for( ; p_in < p_line_end ; )
- {
- WRITE_UV_CLIP();
- }
- p_in += i_pitch - i_visible_pitch;
- p_in_v += i_pitch - i_visible_pitch;
- p_out += i_pitch - i_visible_pitch;
- p_out_v += i_pitch - i_visible_pitch;
- }
- #undef WRITE_UV_CLIP
- }
- else
- {
- #define WRITE_UV()
- i_u = *p_in; p_in += 4; i_v = *p_in_v; p_in_v += 4;
- *p_out = (( ((i_u * i_cos + i_v * i_sin - i_x) >> 8)
- * i_sat) >> 8) + 128;
- p_out += 4;
- *p_out_v = (( ((i_v * i_cos - i_u * i_sin - i_y) >> 8)
- * i_sat) >> 8) + 128;
- p_out_v += 4
- uint8_t i_u, i_v;
- for( ; p_in < p_in_end ; )
- {
- p_line_end = p_in + i_visible_pitch - 8 * 4;
- for( ; p_in < p_line_end ; )
- {
- /* Do 8 pixels at a time */
- WRITE_UV(); WRITE_UV(); WRITE_UV(); WRITE_UV();
- WRITE_UV(); WRITE_UV(); WRITE_UV(); WRITE_UV();
- }
- p_line_end += 8 * 4;
- for( ; p_in < p_line_end ; )
- {
- WRITE_UV();
- }
- p_in += i_pitch - i_visible_pitch;
- p_in_v += i_pitch - i_visible_pitch;
- p_out += i_pitch - i_visible_pitch;
- p_out_v += i_pitch - i_visible_pitch;
- }
- #undef WRITE_UV
- }
- return CopyInfoAndRelease( p_outpic, p_pic );
- }
- static int AdjustCallback( vlc_object_t *p_this, char const *psz_var,
- vlc_value_t oldval, vlc_value_t newval,
- void *p_data )
- {
- VLC_UNUSED(p_this); VLC_UNUSED(oldval);
- filter_sys_t *p_sys = (filter_sys_t *)p_data;
- vlc_mutex_lock( &p_sys->lock );
- if( !strcmp( psz_var, "contrast" ) )
- p_sys->f_contrast = newval.f_float;
- else if( !strcmp( psz_var, "brightness" ) )
- p_sys->f_brightness = newval.f_float;
- else if( !strcmp( psz_var, "hue" ) )
- p_sys->i_hue = newval.i_int;
- else if( !strcmp( psz_var, "saturation" ) )
- p_sys->f_saturation = newval.f_float;
- else if( !strcmp( psz_var, "gamma" ) )
- p_sys->f_gamma = newval.f_float;
- else if( !strcmp( psz_var, "brightness-threshold" ) )
- p_sys->b_brightness_threshold = newval.b_bool;
- vlc_mutex_unlock( &p_sys->lock );
- return VLC_SUCCESS;
- }