X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Fvideo_filter%2Frotate.c;h=55b7c9fbb88f805cd1d85427e0996dfa742f2b07;hb=be378fbc80c384e2541517d6853b59411b7e67de;hp=822c7e474eebf0b64397a00909037677bd567031;hpb=4b1b4f89399a8a9a2fdb5228291736d196bb0aaf;p=vlc diff --git a/modules/video_filter/rotate.c b/modules/video_filter/rotate.c index 822c7e474e..55b7c9fbb8 100644 --- a/modules/video_filter/rotate.c +++ b/modules/video_filter/rotate.c @@ -1,7 +1,7 @@ /***************************************************************************** * rotate.c : video rotation filter ***************************************************************************** - * Copyright (C) 2000-2006 the VideoLAN team + * Copyright (C) 2000-2008 the VideoLAN team * $Id$ * * Authors: Antoine Cellerier @@ -24,15 +24,19 @@ /***************************************************************************** * Preamble *****************************************************************************/ -#include /* malloc(), free() */ -#include + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif #include /* sin(), cos() */ -#include -#include +#include +#include +#include #include "vlc_filter.h" +#include "filter_picture.h" /***************************************************************************** * Local prototypes @@ -41,6 +45,15 @@ static int Create ( vlc_object_t * ); static void Destroy ( vlc_object_t * ); static picture_t *Filter( filter_t *, picture_t * ); +static picture_t *FilterPacked( filter_t *, picture_t * ); + +static int RotateCallback( vlc_object_t *p_this, char const *psz_var, + vlc_value_t oldval, vlc_value_t newval, + void *p_data ); + +static int PreciseRotateCallback( vlc_object_t *p_this, char const *psz_var, + vlc_value_t oldval, vlc_value_t newval, + void *p_data ); #define ANGLE_TEXT N_("Angle in degrees") #define ANGLE_LONGTEXT N_("Angle in degrees (0 to 359)") @@ -51,160 +64,343 @@ static picture_t *Filter( filter_t *, picture_t * ); * Module descriptor *****************************************************************************/ vlc_module_begin(); - set_description( _("Rotate video filter") ); - set_shortname( _( "Rotate" )); + set_description( N_("Rotate video filter") ); + set_shortname( N_( "Rotate" )); set_capability( "video filter2", 0 ); set_category( CAT_VIDEO ); set_subcategory( SUBCAT_VIDEO_VFILTER ); - add_integer_with_range( FILTER_PREFIX "angle", 0, 0, 359, NULL, - ANGLE_TEXT, ANGLE_LONGTEXT, VLC_FALSE ); + add_integer_with_range( FILTER_PREFIX "angle", 30, 0, 359, NULL, + ANGLE_TEXT, ANGLE_LONGTEXT, false ); add_shortcut( "rotate" ); set_callbacks( Create, Destroy ); vlc_module_end(); -static const char *ppsz_filter_options[] = { +static const char *const ppsz_filter_options[] = { "angle", NULL }; /***************************************************************************** - * vout_sys_t: Distort video output method descriptor - ***************************************************************************** - * This structure is part of the video output thread descriptor. - * It describes the Distort specific properties of an output thread. + * filter_sys_t *****************************************************************************/ struct filter_sys_t { int i_angle; - mtime_t last_date; + int i_cos; + int i_sin; }; +static inline void cache_trigo( int i_angle, int *i_sin, int *i_cos ) +{ + const double f_angle = (((double)i_angle)*M_PI)/1800.; + *i_sin = (int)(sin( f_angle )*4096.); + *i_cos = (int)(cos( f_angle )*4096.); +} + /***************************************************************************** - * Create: allocates Distort video thread output method - ***************************************************************************** - * This function allocates and initializes a Distort vout method. + * Create: allocates Distort video filter *****************************************************************************/ static int Create( vlc_object_t *p_this ) { filter_t *p_filter = (filter_t *)p_this; + filter_sys_t *p_sys; + + 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; + } + + switch( p_filter->fmt_in.video.i_chroma ) + { + CASE_PLANAR_YUV + p_filter->pf_video_filter = Filter; + break; + + CASE_PACKED_YUV_422 + 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; + } /* Allocate structure */ p_filter->p_sys = malloc( sizeof( filter_sys_t ) ); if( p_filter->p_sys == NULL ) - { - msg_Err( p_filter, "out of memory" ); return VLC_ENOMEM; - } + p_sys = p_filter->p_sys; config_ChainParse( p_filter, FILTER_PREFIX, ppsz_filter_options, p_filter->p_cfg ); - var_Create( p_filter, FILTER_PREFIX "angle", - VLC_VAR_INTEGER | VLC_VAR_DOINHERIT ); - p_filter->pf_video_filter = Filter; + p_sys->i_angle = var_CreateGetIntegerCommand( p_filter, + FILTER_PREFIX "angle" ) * 10; + var_Create( p_filter, FILTER_PREFIX "deciangle", + VLC_VAR_INTEGER|VLC_VAR_ISCOMMAND ); + var_AddCallback( p_filter, FILTER_PREFIX "angle", RotateCallback, p_sys ); + var_AddCallback( p_filter, FILTER_PREFIX "deciangle", + PreciseRotateCallback, p_sys ); - p_filter->p_sys->i_angle = var_GetInteger( p_filter, - FILTER_PREFIX "angle" ); - p_filter->p_sys->last_date = 0; + cache_trigo( p_sys->i_angle, &p_sys->i_sin, &p_sys->i_cos ); return VLC_SUCCESS; } /***************************************************************************** - * Destroy: destroy Distort video thread output method - ***************************************************************************** - * Terminate an output method created by DistortCreateOutputMethod + * Destroy: destroy Distort filter *****************************************************************************/ static void Destroy( vlc_object_t *p_this ) { filter_t *p_filter = (filter_t *)p_this; + free( p_filter->p_sys ); } /***************************************************************************** - * Render: displays previously rendered output - ***************************************************************************** - * This function send the currently rendered image to Distort 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 i_index; - double f_angle; - double f_sin, f_cos; - mtime_t new_date = mdate(); + filter_sys_t *p_sys = p_filter->p_sys; + int i_plane; + const int i_sin = p_sys->i_sin, i_cos = p_sys->i_cos; if( !p_pic ) return NULL; - p_outpic = p_filter->pf_vout_buffer_new( p_filter ); + p_outpic = filter_NewPicture( p_filter ); if( !p_outpic ) { - msg_Warn( p_filter, "can't get output picture" ); - if( p_pic->pf_release ) - p_pic->pf_release( p_pic ); + picture_Release( p_pic ); return NULL; } - p_filter->p_sys->last_date = new_date; - f_angle = (double)p_filter->p_sys->i_angle; - f_sin = sin( f_angle ); - f_cos = cos( f_angle ); + for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ ) + { + const int i_visible_lines = p_pic->p[i_plane].i_visible_lines; + const int i_visible_pitch = p_pic->p[i_plane].i_visible_pitch; + const int i_pitch = p_pic->p[i_plane].i_pitch; + const int i_hidden_pitch = i_pitch - i_visible_pitch; + + const int i_aspect = ( i_visible_lines * p_pic->p[Y_PLANE].i_visible_pitch ) / ( p_pic->p[Y_PLANE].i_visible_lines * i_visible_pitch ); + /* = 2 for U and V planes in YUV 4:2:2, = 1 otherwise */ + + const int i_line_center = i_visible_lines>>1; + const int i_col_center = i_visible_pitch>>1; + + const uint8_t *p_in = p_pic->p[i_plane].p_pixels; + uint8_t *p_out = p_outpic->p[i_plane].p_pixels; + uint8_t *p_outendline = p_out + i_visible_pitch; + const uint8_t *p_outend = p_out + i_visible_lines * i_pitch; + + const uint8_t black_pixel = ( i_plane == Y_PLANE ) ? 0x00 : 0x80; + + const int i_line_next = i_cos / i_aspect -i_sin*i_visible_pitch; + const int i_col_next = -i_sin / i_aspect -i_cos*i_visible_pitch; + int i_line_orig0 = ( - i_cos * i_line_center / i_aspect + - i_sin * i_col_center + (1<<11) ); + int i_col_orig0 = i_sin * i_line_center / i_aspect + - i_cos * i_col_center + (1<<11); + for( ; p_outendline < p_outend; + p_out += i_hidden_pitch, p_outendline += i_pitch, + i_line_orig0 += i_line_next, i_col_orig0 += i_col_next ) + { + for( ; p_out < p_outendline; + p_out++, i_line_orig0 += i_sin, i_col_orig0 += i_cos ) + { + const int i_line_orig = (i_line_orig0>>12)*i_aspect + i_line_center; + const int i_col_orig = (i_col_orig0>>12) + i_col_center; + const uint8_t* p_orig_offset = p_in + i_line_orig * i_pitch + + i_col_orig; + const uint8_t i_line_percent = (i_line_orig0>>4) & 255; + const uint8_t i_col_percent = (i_col_orig0 >>4) & 255; + + if( -1 <= i_line_orig && i_line_orig < i_visible_lines + && -1 <= i_col_orig && i_col_orig < i_visible_pitch ) + { + #define test 1 + #undef test + #ifdef test + if( ( i_col_orig > i_visible_pitch/2 ) ) + #endif + { + uint8_t i_curpix = black_pixel; + uint8_t i_colpix = black_pixel; + uint8_t i_linpix = black_pixel; + uint8_t i_nexpix = black_pixel; + if( ( 0 <= i_line_orig ) && ( 0 <= i_col_orig ) ) + i_curpix = *p_orig_offset; + p_orig_offset++; + + if( ( i_col_orig < i_visible_pitch - 1) + && ( i_line_orig >= 0 ) ) + i_colpix = *p_orig_offset; + + p_orig_offset+=i_pitch; + if( ( i_line_orig < i_visible_lines - 1) + && ( i_col_orig < i_visible_pitch - 1) ) + i_nexpix = *p_orig_offset; + + p_orig_offset--; + if( ( i_line_orig < i_visible_lines - 1) + && ( i_col_orig >= 0 ) ) + i_linpix = *p_orig_offset; + + unsigned int temp = 0; + temp+= i_curpix * + (256 - i_line_percent) * ( 256 - i_col_percent ); + temp+= i_linpix * + i_line_percent * (256 - i_col_percent ); + temp+= i_nexpix * + ( i_col_percent) * ( i_line_percent); + temp+= i_colpix * + i_col_percent * (256 - i_line_percent ); + *p_out = temp >> 16; + } + #ifdef test + else if (i_col_orig == i_visible_pitch/2 ) + { *p_out = black_pixel; + } + else + *p_out = *p_orig_offset; + #endif + #undef test + } + else + { + *p_out = black_pixel; + } + } + } + } + + return CopyInfoAndRelease( p_outpic, p_pic ); +} + +/***************************************************************************** + * + *****************************************************************************/ +static picture_t *FilterPacked( filter_t *p_filter, picture_t *p_pic ) +{ + picture_t *p_outpic; + filter_sys_t *p_sys = p_filter->p_sys; + const int i_sin = p_sys->i_sin, i_cos = p_sys->i_cos; + + if( !p_pic ) return NULL; + + int i_u_offset, i_v_offset, i_y_offset; + + 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; + } - for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ ) + p_outpic = filter_NewPicture( p_filter ); + if( !p_outpic ) { - int i_line, i_num_lines, i_line_center, i_col, i_num_cols, i_col_center; - uint8_t black_pixel; - uint8_t *p_in, *p_out; + picture_Release( p_pic ); + return NULL; + } - p_in = p_pic->p[i_index].p_pixels; - p_out = p_outpic->p[i_index].p_pixels; + const uint8_t *p_in = p_pic->p->p_pixels+i_y_offset; + const uint8_t *p_in_u = p_pic->p->p_pixels+i_u_offset; + const uint8_t *p_in_v = p_pic->p->p_pixels+i_v_offset; - i_num_lines = p_pic->p[i_index].i_visible_lines; - i_num_cols = p_pic->p[i_index].i_visible_pitch; - i_line_center = i_num_lines/2; - i_col_center = i_num_cols/2; + const int i_pitch = p_pic->p->i_pitch; + const int i_visible_pitch = p_pic->p->i_visible_pitch>>1; /* In fact it's i_visible_pixels */ + const int i_visible_lines = p_pic->p->i_visible_lines; - black_pixel = ( i_index == Y_PLANE ) ? 0x00 : 0x80; + uint8_t *p_out = p_outpic->p->p_pixels+i_y_offset; + uint8_t *p_out_u = p_outpic->p->p_pixels+i_u_offset; + uint8_t *p_out_v = p_outpic->p->p_pixels+i_v_offset; - /* Ok, we do 3 times the sin() calculation for each line. So what ? */ - for( i_line = 0 ; i_line < i_num_lines ; i_line++ ) + const int i_line_center = i_visible_lines>>1; + const int i_col_center = i_visible_pitch>>1; + + int i_col, i_line; + for( i_line = 0; i_line < i_visible_lines; i_line++ ) + { + for( i_col = 0; i_col < i_visible_pitch; i_col++ ) { - for( i_col = 0; i_col < i_num_cols ; i_col++ ) + int i_line_orig; + int i_col_orig; + /* Handle "1st Y", U and V */ + i_line_orig = i_line_center + + ( ( i_sin * ( i_col - i_col_center ) + + i_cos * ( i_line - i_line_center ) )>>12 ); + i_col_orig = i_col_center + + ( ( i_cos * ( i_col - i_col_center ) + - i_sin * ( i_line - i_line_center ) )>>12 ); + if( 0 <= i_col_orig && i_col_orig < i_visible_pitch + && 0 <= i_line_orig && i_line_orig < i_visible_lines ) { - int i_line_orig, i_col_orig; - i_line_orig = (int)( f_cos * (double)(i_line-i_line_center) - + f_sin * (double)(i_col-i_col_center) ) - + i_line_center; - i_col_orig = (int)(-f_sin * (double)(i_line-i_line_center) - + f_cos * (double)(i_col-i_col_center) ) - + i_col_center; - - if( 0 <= i_line_orig && i_line_orig < i_num_lines - && 0 <= i_col_orig && i_col_orig < i_num_cols ) - { + p_out[i_line*i_pitch+2*i_col] = p_in[i_line_orig*i_pitch+2*i_col_orig]; + i_col_orig /= 2; + p_out_u[i_line*i_pitch+2*i_col] = p_in_u[i_line_orig*i_pitch+4*i_col_orig]; + p_out_v[i_line*i_pitch+2*i_col] = p_in_v[i_line_orig*i_pitch+4*i_col_orig]; + } + else + { + p_out[i_line*i_pitch+2*i_col] = 0x00; + p_out_u[i_line*i_pitch+2*i_col] = 0x80; + p_out_v[i_line*i_pitch+2*i_col] = 0x80; + } - p_out[i_line*i_num_cols+i_col] = - p_in[i_line_orig*i_num_cols+i_col_orig]; - } - else - { - p_out[i_line*i_num_cols+i_col] = black_pixel; - } + /* Handle "2nd Y" */ + i_col++; + if( i_col >= i_visible_pitch ) + break; + + i_line_orig = i_line_center + + ( ( i_sin * ( i_col - i_col_center ) + + i_cos * ( i_line - i_line_center ) )>>12 ); + i_col_orig = i_col_center + + ( ( i_cos * ( i_col - i_col_center ) + - i_sin * ( i_line - i_line_center ) )>>12 ); + if( 0 <= i_col_orig && i_col_orig < i_visible_pitch + && 0 <= i_line_orig && i_line_orig < i_visible_lines ) + { + p_out[i_line*i_pitch+2*i_col] = p_in[i_line_orig*i_pitch+2*i_col_orig]; + } + else + { + p_out[i_line*i_pitch+2*i_col] = 0x00; } } } - p_outpic->date = p_pic->date; - p_outpic->b_force = p_pic->b_force; - p_outpic->i_nb_fields = p_pic->i_nb_fields; - p_outpic->b_progressive = p_pic->b_progressive; - p_outpic->b_top_field_first = p_pic->b_top_field_first; + return CopyInfoAndRelease( p_outpic, p_pic ); +} - if( p_pic->pf_release ) - p_pic->pf_release( p_pic ); +/***************************************************************************** + * Angle modification callbacks. + *****************************************************************************/ +static int RotateCallback( 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(psz_var); VLC_UNUSED(oldval); + filter_sys_t *p_sys = (filter_sys_t *)p_data; + p_sys->i_angle = newval.i_int*10; + cache_trigo( p_sys->i_angle, &p_sys->i_sin, &p_sys->i_cos ); + return VLC_SUCCESS; +} - return p_outpic; +static int PreciseRotateCallback( 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(psz_var); VLC_UNUSED(oldval); + filter_sys_t *p_sys = (filter_sys_t *)p_data; + p_sys->i_angle = newval.i_int; + cache_trigo( p_sys->i_angle, &p_sys->i_sin, &p_sys->i_cos ); + return VLC_SUCCESS; }