static picture_t *Filter( filter_t *p_filter, picture_t *p_pic ) { picture_t *p_outpic; 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; } if( p_sys->p_motion != NULL ) { int i_angle = motion_get_angle( p_sys->p_motion ); store_trigo( p_sys, i_angle / 20.f ); } int i_sin, i_cos; fetch_trigo( p_sys, &i_sin, &i_cos ); for( int i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ ) { plane_t *p_srcp = &p_pic->p[i_plane]; plane_t *p_dstp = &p_outpic->p[i_plane]; const int i_visible_lines = p_srcp->i_visible_lines; const int i_visible_pitch = p_srcp->i_visible_pitch; const int i_aspect = __MAX( 1, ( 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 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( int y = 0; y < i_visible_lines; y++) { uint8_t *p_out = &p_dstp->p_pixels[y * p_dstp->i_pitch]; for( int x = 0; x < i_visible_pitch; x++, p_out++ ) { 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_srcp->p_pixels[i_line_orig * p_srcp->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 += p_srcp->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; } i_line_orig0 += i_sin; i_col_orig0 += i_cos; }
static void *RunIntf( void *data ) { intf_thread_t *p_intf = data; int i_oldx = 0; for( ;; ) { const char *psz_type; bool b_change = false; /* Wait a bit, get orientation, change filter if necessary */ #warning FIXME: check once (or less) per picture, not once per interval vlc_tick_sleep( INTF_IDLE_SLEEP ); int canc = vlc_savecancel(); int i_x = motion_get_angle( p_intf->p_sys->p_motion ); if( i_x < -HIGH_THRESHOLD && i_oldx > -LOW_THRESHOLD ) { b_change = true; psz_type = "90"; } else if( ( i_x > -LOW_THRESHOLD && i_oldx < -HIGH_THRESHOLD ) || ( i_x < LOW_THRESHOLD && i_oldx > HIGH_THRESHOLD ) ) { b_change = true; psz_type = NULL; } else if( i_x > HIGH_THRESHOLD && i_oldx < LOW_THRESHOLD ) { b_change = true; psz_type = "270"; } if( b_change ) { #warning FIXME: refactor this plugin as a video filter! input_thread_t *p_input = pl_CurrentInput( p_intf ); if( p_input ) { vout_thread_t *p_vout; p_vout = input_GetVout( p_input ); if( p_vout ) { if( psz_type != NULL ) { var_Create( p_vout, "transform-type", VLC_VAR_STRING ); var_SetString( p_vout, "transform-type", psz_type ); } else var_Destroy( p_vout, "transform-type" ); var_SetString( p_vout, "video-filter", psz_type != NULL ? "transform" : "" ); vlc_object_release( p_vout ); } vlc_object_release( p_input ); i_oldx = i_x; } } vlc_restorecancel( canc ); } vlc_assert_unreachable(); }