+ 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;
+ }