diff options
Diffstat (limited to 'libhb/rotate.c')
| -rw-r--r-- | libhb/rotate.c | 91 |
1 files changed, 75 insertions, 16 deletions
diff --git a/libhb/rotate.c b/libhb/rotate.c index f67759ea4..090a1b418 100644 --- a/libhb/rotate.c +++ b/libhb/rotate.c @@ -12,9 +12,25 @@ #include "taskset.h" #define MODE_DEFAULT 3 -// Mode 1: Flip vertically (y0 becomes yN and yN becomes y0) -// Mode 2: Flip horizontally (x0 becomes xN and xN becomes x0) -// Mode 3: Flip both horizontally and vertically (modes 1 and 2 combined) +// Settings: +// degrees:mirror +// +// degrees - Rotation angle, may be one of 90, 180, or 270 +// mirror - Mirror image around x axis +// +// Examples: +// Mode 180:1 Mirror then rotate 180' +// Mode 0:1 Mirror +// Mode 180:0 Rotate 180' +// Mode 90:0 Rotate 90' +// Mode 270:0 Rotate 270' +// +// Legacy Mode Examples (also accepted): +// Mode 1: Flip vertically (y0 becomes yN and yN becomes y0) (aka 180:1) +// Mode 2: Flip horizontally (x0 becomes xN and xN becomes x0) (aka 0:1) +// Mode 3: Flip both horizontally and vertically (aka 180:0) +// Mode 4: Rotate 90' (aka 90:0) +// Mode 7: Flip horiz & vert plus Rotate 90' (aka 270:0) typedef struct rotate_arguments_s { hb_buffer_t *dst; @@ -221,13 +237,38 @@ static int hb_rotate_init( hb_filter_object_t * filter, filter->private_data = calloc( 1, sizeof(struct hb_filter_private_s) ); hb_filter_private_t * pv = filter->private_data; - pv->mode = MODE_DEFAULT; + int degrees = MODE_DEFAULT, mirror = 0, num_params = 0; if( filter->settings ) { - sscanf( filter->settings, "%d", - &pv->mode ); + num_params = sscanf(filter->settings, "%d:%d", °rees, &mirror); } + switch (degrees) + { + case 0: + pv->mode = 0; + break; + case 90: + pv->mode = 4; + break; + case 180: + pv->mode = 3; + break; + case 270: + pv->mode = 7; + break; + default: + if (degrees & ~7) + { + // Unsupported rotation angle + hb_error("Unsupported rotate mode %d", degrees); + } + // Legacy "mode" supplied in settings + pv->mode = degrees & 7; + break; + } + if (num_params > 1 && mirror) + pv->mode ^= 2; pv->cpu_count = hb_get_cpu_count(); @@ -293,19 +334,30 @@ static int hb_rotate_info( hb_filter_object_t * filter, info->out.geometry.height = pv->height; info->out.geometry.par = pv->par; int pos = 0; - if( pv->mode & 1 ) - pos += sprintf( &info->human_readable_desc[pos], "flip vertical" ); - if( pv->mode & 2 ) + + int mirror_x = !!(pv->mode & 2); + int mirror_y = !!(pv->mode & 1); + int degrees = 0; + if (mirror_y) { - if( pos ) - pos += sprintf( &info->human_readable_desc[pos], "/" ); - pos += sprintf( &info->human_readable_desc[pos], "flip horizontal" ); + degrees += 180; + mirror_x ^= 1; + mirror_y ^= 1; } - if( pv->mode & 4 ) + degrees += !!(pv->mode & 4) * 90; + + if (degrees > 0) + { + sprintf(&info->human_readable_desc[pos], "Rotate %d%s", degrees, + mirror_x ? " / mirror image" : ""); + } + else if (mirror_x) + { + sprintf(&info->human_readable_desc[pos], "Mirror image"); + } + else { - if( pos ) - pos += sprintf( &info->human_readable_desc[pos], "/" ); - pos += sprintf( &info->human_readable_desc[pos], "rotate 90" ); + sprintf(&info->human_readable_desc[pos], "No rotation or mirror!"); } return 0; } @@ -343,6 +395,13 @@ static int hb_rotate_work( hb_filter_object_t * filter, *buf_in = NULL; return HB_FILTER_DONE; } + if (pv->mode == 0) + { + // Short circuit case where filter does nothing + *buf_out = in; + *buf_in = NULL; + return HB_FILTER_OK; + } int width_out, height_out; if ( pv->mode & 4 ) |