--- /dev/null
+/*****************************************************************************
+ * sepia.c : Sepia video plugin for vlc
+ *****************************************************************************
+ * Copyright (C) 2010 the VideoLAN team
+ * $Id$
+ *
+ * Authors: Branko Kokanovic <branko.kokanovic@gmail.com>
+ *
+ * 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 <vlc_common.h>
+#include <vlc_plugin.h>
+
+#include <assert.h>
+#include <vlc_filter.h>
+#include "filter_picture.h"
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static int Create ( vlc_object_t * );
+static void Destroy ( vlc_object_t * );
+
+static void vlc_rgb_index( int *, int *, int *, const video_format_t * );
+static void vlc_yuv_index( int *, int *, int *, const video_format_t * );
+static void RVSepia( picture_t *, picture_t *, int );
+static void PlanarI420Sepia( picture_t *, picture_t *, int);
+static void PackedYUVSepia( picture_t *, picture_t *, int);
+static void YuvSepia2( uint8_t *, uint8_t *, uint8_t *, uint8_t *,
+ const uint8_t, const uint8_t, const uint8_t, const uint8_t,
+ int );
+static void YuvSepia4( uint8_t *, uint8_t *, uint8_t *, uint8_t *, uint8_t *,
+ uint8_t *, const uint8_t, const uint8_t, const uint8_t,
+ const uint8_t, const uint8_t, const uint8_t, int );
+static void Sepia( int *, int *, int *, int );
+static picture_t *Filter( filter_t *, picture_t * );
+
+static const char *const ppsz_filter_options[] = {
+ "intensity", NULL
+};
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+#define SEPIA_INTENSITY_TEXT N_("Sepia intensity")
+#define SEPIA_INTENSITY_LONGTEXT N_("Intensity of sepia effect" )
+
+#define CFG_PREFIX "sepia-"
+
+vlc_module_begin ()
+ set_description( N_("Sepia video filter") )
+ set_shortname( N_("Sepia" ) )
+ set_help( N_("Gives video a warmer tone by applying sepia effect") )
+ set_category( CAT_VIDEO )
+ set_subcategory( SUBCAT_VIDEO_VFILTER )
+ set_capability( "video filter2", 0 )
+ add_integer_with_range( CFG_PREFIX "intensity", 30, 0, 255, NULL,
+ SEPIA_INTENSITY_TEXT, SEPIA_INTENSITY_LONGTEXT,
+ false )
+ set_callbacks( Create, Destroy )
+vlc_module_end ()
+
+/*****************************************************************************
+ * callback prototypes
+ *****************************************************************************/
+static int FilterCallback( vlc_object_t *, char const *,
+ vlc_value_t, vlc_value_t, void * );
+
+typedef void (*SepiaFunction)( picture_t *, picture_t *, int );
+
+static const struct
+{
+ vlc_fourcc_t i_chroma;
+ SepiaFunction pf_sepia;
+} p_sepia_cfg[] = {
+ { VLC_CODEC_I420, PlanarI420Sepia },
+ { VLC_CODEC_RGB24, RVSepia },
+ { VLC_CODEC_RGB32, RVSepia },
+ { VLC_CODEC_UYVY, PackedYUVSepia },
+ { VLC_CODEC_VYUY, PackedYUVSepia },
+ { VLC_CODEC_YUYV, PackedYUVSepia },
+ { VLC_CODEC_YVYU, PackedYUVSepia },
+ { 0, NULL }
+};
+
+/*****************************************************************************
+ * filter_sys_t: adjust filter method descriptor
+ *****************************************************************************/
+struct filter_sys_t
+{
+ SepiaFunction pf_sepia;
+ int i_intensity;
+ vlc_spinlock_t lock;
+};
+
+/*****************************************************************************
+ * Create: allocates Sepia video thread output method
+ *****************************************************************************
+ * This function allocates and initializes a Sepia vout method.
+ *****************************************************************************/
+static int Create( vlc_object_t *p_this )
+{
+ filter_t *p_filter = (filter_t *)p_this;
+ filter_sys_t *p_sys;
+
+ /* Allocate structure */
+ p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
+ if( p_filter->p_sys == NULL )
+ return VLC_ENOMEM;
+
+ p_sys->pf_sepia = NULL;
+
+ for( int i = 0; p_sepia_cfg[i].i_chroma != 0; i++ )
+ {
+ if( p_sepia_cfg[i].i_chroma != p_filter->fmt_in.video.i_chroma )
+ continue;
+ p_sys->pf_sepia = p_sepia_cfg[i].pf_sepia;
+ }
+
+ if( p_sys->pf_sepia == NULL )
+ {
+ msg_Err( p_filter, "Unsupported input chroma (%4.4s)",
+ (char*)&(p_filter->fmt_in.video.i_chroma) );
+ free( p_sys );
+ return VLC_EGENERIC;
+ }
+
+ config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
+ p_filter->p_cfg );
+ p_sys->i_intensity= var_CreateGetIntegerCommand( p_filter,
+ CFG_PREFIX "intensity" );
+
+ vlc_spin_init( &p_sys->lock );
+
+ var_AddCallback( p_filter, CFG_PREFIX "intensity", FilterCallback, NULL );
+
+ p_filter->pf_video_filter = Filter;
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Destroy: destroy sepia video thread output method
+ *****************************************************************************
+ * Terminate an output method
+ *****************************************************************************/
+static void Destroy( vlc_object_t *p_this )
+{
+ filter_t *p_filter = (filter_t *)p_this;
+
+ var_DelCallback( p_filter, CFG_PREFIX "intensity", FilterCallback, NULL );
+
+ vlc_spin_destroy( &p_filter->p_sys->lock );
+ free( p_filter->p_sys );
+}
+
+/*****************************************************************************
+ * Render: displays previously rendered output
+ *****************************************************************************
+ * This function send the currently rendered image to sepia image, waits
+ * until it is displayed and switch the two rendering buffers, preparing next
+ * frame.
+ *****************************************************************************/
+static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
+{
+ picture_t *p_outpic;
+ int intensity;
+
+ if( !p_pic ) return NULL;
+
+ filter_sys_t *p_sys = p_filter->p_sys;
+ vlc_spin_lock( &p_sys->lock );
+ intensity = p_sys->i_intensity;
+ vlc_spin_unlock( &p_sys->lock );
+
+ p_outpic = filter_NewPicture( p_filter );
+ if( !p_outpic )
+ {
+ msg_Warn( p_filter, "can't get output picture" );
+ picture_Release( p_pic );
+ return NULL;
+ }
+
+ p_sys->pf_sepia( p_pic, p_outpic, intensity );
+
+ return CopyInfoAndRelease( p_outpic, p_pic );
+}
+
+/***********************************************************************
+ * Utils
+ ***********************************************************************/
+static inline uint8_t vlc_uint8( int v )
+{
+ if( v > 255 )
+ return 255;
+ else if( v < 0 )
+ return 0;
+ return v;
+}
+
+static inline void yuv_to_rgb( int *r, int *g, int *b,
+ uint8_t y1, uint8_t u1, uint8_t v1 )
+{
+ /* macros used for YUV pixel conversions */
+# define SCALEBITS 10
+# define ONE_HALF (1 << (SCALEBITS - 1))
+# define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
+
+ int y, cb, cr, r_add, g_add, b_add;
+
+ cb = u1 - 128;
+ cr = v1 - 128;
+ r_add = FIX(1.40200*255.0/224.0) * cr + ONE_HALF;
+ g_add = - FIX(0.34414*255.0/224.0) * cb
+ - FIX(0.71414*255.0/224.0) * cr + ONE_HALF;
+ b_add = FIX(1.77200*255.0/224.0) * cb + ONE_HALF;
+ y = (y1 - 16) * FIX(255.0/219.0);
+ *r = vlc_uint8( (y + r_add) >> SCALEBITS );
+ *g = vlc_uint8( (y + g_add) >> SCALEBITS );
+ *b = vlc_uint8( (y + b_add) >> SCALEBITS );
+#undef FIX
+#undef ONE_HALF
+#undef SCALEBITS
+}
+
+static void vlc_rgb_index( int *pi_rindex, int *pi_gindex, int *pi_bindex,
+ const video_format_t *p_fmt )
+{
+ if( p_fmt->i_chroma != VLC_CODEC_RGB24 && p_fmt->i_chroma != VLC_CODEC_RGB32 )
+ return;
+
+#ifdef WORDS_BIGENDIAN
+ const int i_mask_bits = p_fmt->i_chroma == VLC_CODEC_RGB24 ? 24 : 32;
+ *pi_rindex = ( i_mask_bits - p_fmt->i_lrshift ) / 8;
+ *pi_gindex = ( i_mask_bits - p_fmt->i_lgshift ) / 8;
+ *pi_bindex = ( i_mask_bits - p_fmt->i_lbshift ) / 8;
+#else
+ *pi_rindex = p_fmt->i_lrshift / 8;
+ *pi_gindex = p_fmt->i_lgshift / 8;
+ *pi_bindex = p_fmt->i_lbshift / 8;
+#endif
+}
+
+static void vlc_yuv_index( int *pi_y_index, int *pi_u_index, int *pi_v_index,
+ const video_format_t *p_fmt )
+{
+ if(
+ p_fmt->i_chroma != VLC_CODEC_UYVY &&
+ p_fmt->i_chroma != VLC_CODEC_VYUY &&
+ p_fmt->i_chroma != VLC_CODEC_YUYV &&
+ p_fmt->i_chroma != VLC_CODEC_YVYU )
+ return;
+
+ switch( p_fmt->i_chroma )
+ {
+ case VLC_CODEC_UYVY:
+ *pi_u_index = 0;
+ *pi_y_index = 1;
+ *pi_v_index = 2;
+ break;
+ case VLC_CODEC_VYUY:
+ *pi_v_index = 0;
+ *pi_y_index = 1;
+ *pi_u_index = 2;
+ break;
+ case VLC_CODEC_YUYV:
+ *pi_y_index = 0;
+ *pi_u_index = 1;
+ *pi_v_index = 3;
+ break;
+ case VLC_CODEC_YVYU:
+ *pi_y_index = 0;
+ *pi_v_index = 1;
+ *pi_u_index = 3;
+ break;
+ }
+}
+
+/*****************************************************************************
+ * PlanarI420Sepia: Applies sepia to one frame of the planar I420 video
+ *****************************************************************************
+ * This function applies sepia effect to one frame of the video by iterating
+ * through video lines. We iterate for every two lines and for every two pixels
+ * in line to calculate new sepia values for four y components as well for u
+ * and v components.
+ *****************************************************************************/
+static void PlanarI420Sepia( picture_t *p_pic, picture_t *p_outpic,
+ int i_intensity )
+{
+ /* iterate for every two visible line in the frame */
+ for( int y = 0; y < p_pic->p[Y_PLANE].i_visible_lines - 1; y += 2)
+ {
+ const int i_sy_line1_start = y * p_pic->p[Y_PLANE].i_pitch;
+ const int i_sy_line2_start = ( y + 1 ) * p_pic->p[Y_PLANE].i_pitch;
+ const int i_su_line_start = (y/2) * p_pic->p[U_PLANE].i_pitch;
+ const int i_sv_line_start = (y/2) * p_pic->p[V_PLANE].i_pitch;
+
+ const int i_dy_line1_start = y * p_outpic->p[Y_PLANE].i_pitch;
+ const int i_dy_line2_start = ( y + 1 ) * p_outpic->p[Y_PLANE].i_pitch;
+ const int i_du_line_start = (y/2) * p_outpic->p[U_PLANE].i_pitch;
+ const int i_dv_line_start = (y/2) * p_outpic->p[V_PLANE].i_pitch;
+ /* iterate for every two visible line in the frame */
+ for( int x = 0; x < p_pic->p[Y_PLANE].i_visible_pitch - 1; x += 2)
+ {
+ uint8_t sy1, sy2, sy3, sy4, su, sv;
+ uint8_t dy1, dy2, dy3, dy4, du, dv;
+ const int i_sy_line1_offset = i_sy_line1_start + x;
+ const int i_sy_line2_offset = i_sy_line2_start + x;
+ const int i_dy_line1_offset = i_dy_line1_start + x;
+ const int i_dy_line2_offset = i_dy_line2_start + x;
+ /* get four y components and u and v component */
+ sy1 = p_pic->p[Y_PLANE].p_pixels[i_sy_line1_offset];
+ sy2 = p_pic->p[Y_PLANE].p_pixels[i_sy_line1_offset + 1];
+ sy3 = p_pic->p[Y_PLANE].p_pixels[i_sy_line2_offset];
+ sy4 = p_pic->p[Y_PLANE].p_pixels[i_sy_line2_offset + 1];
+ su = p_pic->p[U_PLANE].p_pixels[i_su_line_start + (x/2)];
+ sv = p_pic->p[V_PLANE].p_pixels[i_sv_line_start + (x/2)];
+ /* calculate sepia values */
+ YuvSepia4( &dy1, &dy2, &dy3, &dy4, &du, &dv,
+ sy1, sy2, sy3, sy4, su, sv, i_intensity );
+ /* put new sepia values for all four y components and u and v */
+ p_outpic->p[Y_PLANE].p_pixels[i_dy_line1_offset] = dy1;
+ p_outpic->p[Y_PLANE].p_pixels[i_dy_line1_offset + 1] = dy2;
+ p_outpic->p[Y_PLANE].p_pixels[i_dy_line2_offset] = dy3;
+ p_outpic->p[Y_PLANE].p_pixels[i_dy_line2_offset + 1] = dy4;
+ p_outpic->p[U_PLANE].p_pixels[i_du_line_start + (x/2)] = du;
+ p_outpic->p[V_PLANE].p_pixels[i_dv_line_start + (x/2)] = dv;
+ }
+ }
+}
+
+/*****************************************************************************
+ * PackedYUVSepia: Applies sepia to one frame of the packed YUV video
+ *****************************************************************************
+ * This function applies sepia effext to one frame of the video by iterating
+ * through video lines. In every pass, we calculate new values for pixels
+ * (UYVY, VYUY, YUYV and YVYU formats are supported)
+ *****************************************************************************/
+static void PackedYUVSepia( picture_t *p_pic, picture_t *p_outpic,
+ int i_intensity )
+{
+ uint8_t *p_in, *p_in_end, *p_line_start, *p_line_end, *p_out;
+ int i_yindex = 1, i_uindex = 2, i_vindex = 0;
+
+ vlc_yuv_index( &i_yindex, &i_vindex, &i_uindex, &p_outpic->format );
+
+ p_in = p_pic->p[0].p_pixels;
+ p_in_end = p_in + p_pic->p[0].i_visible_lines
+ * p_pic->p[0].i_pitch;
+ p_out = p_outpic->p[0].p_pixels;
+
+ while( p_in < p_in_end )
+ {
+ p_line_start = p_in;
+ p_line_end = p_in + p_pic->p[0].i_visible_pitch;
+ while( p_in < p_line_end )
+ {
+ /* calculate new, sepia values */
+ YuvSepia2( &p_out[i_yindex], &p_out[i_yindex + 2], &p_out[i_uindex],
+ &p_out[i_vindex], p_in[i_yindex], p_in[i_yindex + 2],
+ p_in[i_uindex], p_in[i_vindex], i_intensity );
+ p_in += 4;
+ p_out += 4;
+ }
+ p_in += p_pic->p[0].i_pitch - p_pic->p[0].i_visible_pitch;
+ p_out += p_outpic->p[0].i_pitch
+ - p_outpic->p[0].i_visible_pitch;
+ }
+}
+
+/*****************************************************************************
+ * RVSepia: Applies sepia to one frame of the RV24/RV32 video
+ *****************************************************************************
+ * This function applies sepia effect to one frame of the video by iterating
+ * through video lines and calculating new values for every byte in chunks of
+ * 3 (RV24) or 4 (RV32) bytes.
+ *****************************************************************************/
+static void RVSepia( picture_t *p_pic, picture_t *p_outpic, int i_intensity )
+{
+ uint8_t *p_in, *p_in_end, *p_line_start, *p_line_end, *p_out;
+ int i_r, i_g, i_b;
+ bool b_isRV32 = p_pic->format.i_chroma == VLC_CODEC_RGB32;
+ int i_rindex = 0, i_gindex = 1, i_bindex = 2;
+
+ vlc_rgb_index( &i_rindex, &i_gindex, &i_bindex, &p_outpic->format );
+
+ p_in = p_pic->p[0].p_pixels;
+ p_in_end = p_in + p_pic->p[0].i_visible_lines
+ * p_pic->p[0].i_pitch;
+ p_out = p_outpic->p[0].p_pixels;
+
+ while( p_in < p_in_end )
+ {
+ p_line_start = p_in;
+ p_line_end = p_in + p_pic->p[0].i_visible_pitch;
+ while( p_in < p_line_end )
+ {
+ /* extract r,g,b values */
+ i_r = p_in[i_rindex];
+ i_g = p_in[i_gindex];
+ i_b = p_in[i_bindex];
+ p_in += 3;
+ /* do sepia */
+ Sepia( &i_r, &i_g, &i_b, i_intensity );
+ /* put new r,g,b values */
+ p_out[i_rindex] = i_r;
+ p_out[i_gindex] = i_g;
+ p_out[i_bindex] = i_b;
+ p_out += 3;
+ /* for rv32 we take 4 chunks at the time */
+ if ( b_isRV32 )
+ {
+ /* alpha channel stays the same */
+ *p_out++ = *p_in++;
+ }
+ }
+ p_in += p_pic->p[0].i_pitch - p_pic->p[0].i_visible_pitch;
+ p_out += p_outpic->p[0].i_pitch
+ - p_outpic->p[0].i_visible_pitch;
+ }
+}
+
+/*****************************************************************************
+ * YuvSepia2: Calculates sepia to YUV values for two given Y values
+ *****************************************************************************
+ * This function calculates sepia values of YUV color space for a given sepia
+ * intensity. It converts YUV color values to theirs RGB equivalents,
+ * calculates sepia values and then converts RGB values to YUV values again.
+ *****************************************************************************/
+static void YuvSepia2( uint8_t* sepia_y1, uint8_t* sepia_y2, uint8_t* sepia_u,
+ uint8_t* sepia_v, const uint8_t y1, const uint8_t y2,
+ const uint8_t u, const uint8_t v, int i_intensity )
+{
+ int r1, g1, b1; /* for y1 new value */
+ int r2, b2, g2; /* for y2 new value */
+ int r3, g3, b3; /* for new values of u and v */
+ /* fist convert YUV -> RGB */
+ yuv_to_rgb( &r1, &g1, &b1, y1, u, v );
+ yuv_to_rgb( &r2, &g2, &b2, y2, u, v );
+ yuv_to_rgb( &r3, &g3, &b3, ( y1 + y2 ) / 2, u, v );
+ /* calculates new values for r, g and b components */
+ Sepia( &r1, &g1, &b1, i_intensity );
+ Sepia( &r2, &g2, &b2, i_intensity );
+ Sepia( &r3, &g3, &b3, i_intensity );
+ /* convert from calculated RGB -> YUV */
+ *sepia_y1 = ( ( 66 * r1 + 129 * g1 + 25 * b1 + 128 ) >> 8 ) + 16;
+ *sepia_y2 = ( ( 66 * r2 + 129 * g2 + 25 * b2 + 128 ) >> 8 ) + 16;
+ *sepia_u = ( ( -38 * r3 - 74 * g3 + 112 * b3 + 128 ) >> 8 ) + 128;
+ *sepia_v = ( ( 112 * r3 - 94 * g3 - 18 * b3 + 128 ) >> 8 ) + 128;
+}
+
+/*****************************************************************************
+ * YuvSepia4: Calculates sepia to YUV values for given four Y values
+ *****************************************************************************
+ * This function calculates sepia values of YUV color space for a given sepia
+ * intensity. It converts YUV color values to theirs RGB equivalents,
+ * calculates sepia values and then converts RGB values to YUV values again.
+ *****************************************************************************/
+static void YuvSepia4( uint8_t* sepia_y1, uint8_t* sepia_y2, uint8_t* sepia_y3,
+ uint8_t* sepia_y4, uint8_t* sepia_u, uint8_t* sepia_v,
+ const uint8_t y1, const uint8_t y2, const uint8_t y3,
+ const uint8_t y4, const uint8_t u, uint8_t v,
+ int i_intensity )
+{
+ int r1, g1, b1; /* for y1 new value */
+ int r2, b2, g2; /* for y2 new value */
+ int r3, b3, g3; /* for y3 new value */
+ int r4, b4, g4; /* for y4 new value */
+ int r5, g5, b5; /* for new values of u and v */
+ /* fist convert YUV -> RGB */
+ yuv_to_rgb( &r1, &g1, &b1, y1, u, v );
+ yuv_to_rgb( &r2, &g2, &b2, y2, u, v );
+ yuv_to_rgb( &r3, &g3, &b3, y3, u, v );
+ yuv_to_rgb( &r4, &g4, &b4, y4, u, v );
+ yuv_to_rgb( &r5, &g5, &b5, ( y1 + y2 + y3 + y4) / 4, u, v );
+ /* calculates new values for r, g and b components */
+ Sepia( &r1, &g1, &b1, i_intensity );
+ Sepia( &r2, &g2, &b2, i_intensity );
+ Sepia( &r3, &g3, &b3, i_intensity );
+ Sepia( &r4, &g4, &b4, i_intensity );
+ Sepia( &r5, &g5, &b5, i_intensity );
+ /* convert from calculated RGB -> YUV */
+ *sepia_y1 = ( ( 66 * r1 + 129 * g1 + 25 * b1 + 128 ) >> 8 ) + 16;
+ *sepia_y2 = ( ( 66 * r2 + 129 * g2 + 25 * b2 + 128 ) >> 8 ) + 16;
+ *sepia_y3 = ( ( 66 * r3 + 129 * g3 + 25 * b3 + 128 ) >> 8 ) + 16;
+ *sepia_y4 = ( ( 66 * r4 + 129 * g4 + 25 * b4 + 128 ) >> 8 ) + 16;
+ *sepia_u = ( ( -38 * r5 - 74 * g5 + 112 * b5 + 128 ) >> 8 ) + 128;
+ *sepia_v = ( ( 112 * r5 - 94 * g5 - 18 * b5 + 128 ) >> 8 ) + 128;
+}
+
+/*****************************************************************************
+ * Sepia: Calculates sepia of RGB values
+ *****************************************************************************
+ * This function calculates sepia values of RGB color space for a given sepia
+ * intensity. Sepia algorithm is taken from here:
+ * http://groups.google.com/group/comp.lang.java.programmer/browse_thread/
+ * thread/9d20a72c40b119d0/18f12770ec6d9dd6
+ *****************************************************************************/
+static void Sepia( int *p_r, int *p_g, int *p_b, int i_intensity )
+{
+ int i_sepia_depth = 20;
+ int16_t i_round;
+ i_round = ( *p_r + *p_g + *p_b ) / 3;
+ *p_r = vlc_uint8( i_round + ( i_sepia_depth * 2 ) );
+ *p_g = vlc_uint8( i_round + i_sepia_depth );
+ *p_b = vlc_uint8( i_round - i_intensity );
+}
+
+static int FilterCallback ( vlc_object_t *p_this, char const *psz_var,
+ vlc_value_t oldval, vlc_value_t newval,
+ void *p_data )
+{
+ VLC_UNUSED(psz_var); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
+ filter_t *p_filter = (filter_t*)p_this;
+ filter_sys_t *p_sys = p_filter->p_sys;
+
+ vlc_spin_lock( &p_sys->lock );
+ p_sys->i_intensity = newval.i_int;
+ vlc_spin_unlock( &p_sys->lock );
+
+ return VLC_SUCCESS;
+}
projects / vlc / commitdiff