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-rw-r--r--libhb/hb.c119
-rw-r--r--libhb/hb.h2
-rw-r--r--libhb/work.c70
3 files changed, 138 insertions, 53 deletions
diff --git a/libhb/hb.c b/libhb/hb.c
index a53bd1f4a..b2d672872 100644
--- a/libhb/hb.c
+++ b/libhb/hb.c
@@ -431,75 +431,90 @@ void hb_get_preview( hb_handle_t * h, hb_title_t * title, int picture,
* @param job Handle to hb_job_t.
* @param aspect Desired aspect ratio. Value of -1 uses title aspect.
* @param pixels Maximum desired pixel count.
+ * @param par If true, skip the cropping and keep-aspect-ratio stuff.
*/
-void hb_set_size( hb_job_t * job, int aspect, int pixels )
+void hb_set_size( hb_job_t * job, int aspect, int pixels, int par )
{
hb_title_t * title = job->title;
int croppedWidth = title->width - title->crop[2] - title->crop[3];
int croppedHeight = title->height - title->crop[0] - title->crop[1];
- int croppedAspect = title->aspect * title->height * croppedWidth /
- croppedHeight / title->width;
- int addCrop;
- int i, w, h;
-
- if( aspect <= 0 )
+
+ int croppedAspect;
+ if (par)
{
- /* Keep the best possible aspect ratio */
+ /* That means we're setting size for video with non-square pixels */
+ croppedAspect = croppedWidth * HB_ASPECT_BASE / croppedHeight;
aspect = croppedAspect;
}
-
- /* Crop if necessary to obtain the desired ratio */
- memcpy( job->crop, title->crop, 4 * sizeof( int ) );
- if( aspect < croppedAspect )
- {
- /* Need to crop on the left and right */
- addCrop = croppedWidth - aspect * croppedHeight * title->width /
- title->aspect / title->height;
- if( addCrop & 3 )
- {
- addCrop = ( addCrop + 1 ) / 2;
- job->crop[2] += addCrop;
- job->crop[3] += addCrop;
- }
- else if( addCrop & 2 )
- {
- addCrop /= 2;
- job->crop[2] += addCrop - 1;
- job->crop[3] += addCrop + 1;
- }
- else
- {
- addCrop /= 2;
- job->crop[2] += addCrop;
- job->crop[3] += addCrop;
- }
- }
- else if( aspect > croppedAspect )
+ else
{
- /* Need to crop on the top and bottom */
- addCrop = croppedHeight - croppedWidth * title->aspect *
- title->height / aspect / title->width;
- if( addCrop & 3 )
+ /* We're free to change cropping and maintain display aspect ratio */
+ croppedAspect = title->aspect * title->height * croppedWidth /
+ croppedHeight / title->width;
+
+ int addCrop;
+
+ if( aspect <= 0 )
{
- addCrop = ( addCrop + 1 ) / 2;
- job->crop[0] += addCrop;
- job->crop[1] += addCrop;
+ /* Keep the best possible aspect ratio */
+ aspect = croppedAspect;
}
- else if( addCrop & 2 )
+
+ /* Crop if necessary to obtain the desired ratio */
+ memcpy( job->crop, title->crop, 4 * sizeof( int ) );
+ if( aspect < croppedAspect )
{
- addCrop /= 2;
- job->crop[0] += addCrop - 1;
- job->crop[1] += addCrop + 1;
+ /* Need to crop on the left and right */
+ addCrop = croppedWidth - aspect * croppedHeight * title->width /
+ title->aspect / title->height;
+ if( addCrop & 3 )
+ {
+ addCrop = ( addCrop + 1 ) / 2;
+ job->crop[2] += addCrop;
+ job->crop[3] += addCrop;
+ }
+ else if( addCrop & 2 )
+ {
+ addCrop /= 2;
+ job->crop[2] += addCrop - 1;
+ job->crop[3] += addCrop + 1;
+ }
+ else
+ {
+ addCrop /= 2;
+ job->crop[2] += addCrop;
+ job->crop[3] += addCrop;
+ }
}
- else
+ else if( aspect > croppedAspect )
{
- addCrop /= 2;
- job->crop[0] += addCrop;
- job->crop[1] += addCrop;
+ /* Need to crop on the top and bottom */
+ addCrop = croppedHeight - croppedWidth * title->aspect *
+ title->height / aspect / title->width;
+ if( addCrop & 3 )
+ {
+ addCrop = ( addCrop + 1 ) / 2;
+ job->crop[0] += addCrop;
+ job->crop[1] += addCrop;
+ }
+ else if( addCrop & 2 )
+ {
+ addCrop /= 2;
+ job->crop[0] += addCrop - 1;
+ job->crop[1] += addCrop + 1;
+ }
+ else
+ {
+ addCrop /= 2;
+ job->crop[0] += addCrop;
+ job->crop[1] += addCrop;
+ }
}
- }
+ }
+
+ int i, w, h;
/* Compute a resolution from the number of pixels and aspect */
for( i = 0;; i++ )
{
diff --git a/libhb/hb.h b/libhb/hb.h
index 6f8af2aee..c33f70f62 100644
--- a/libhb/hb.h
+++ b/libhb/hb.h
@@ -77,7 +77,7 @@ hb_list_t * hb_get_titles( hb_handle_t * );
void hb_get_preview( hb_handle_t *, hb_title_t *, int,
uint8_t * );
-void hb_set_size( hb_job_t *, int ratio, int pixels );
+void hb_set_size( hb_job_t *, int ratio, int pixels, int par );
/* Handling jobs */
int hb_count( hb_handle_t * );
diff --git a/libhb/work.c b/libhb/work.c
index 5b3f914c2..70ca36a1e 100644
--- a/libhb/work.c
+++ b/libhb/work.c
@@ -128,6 +128,76 @@ static void do_job( hb_job_t * job, int cpu_count )
job->height=title->height-job->crop[0]-job->crop[1];
job->width=title->width-job->crop[2]-job->crop[3];
}
+ else if ( job->pixel_ratio == 2 )
+ {
+ /* "Loose" anamorphic.
+ - Uses mod16-compliant dimensions,
+ - Allows users to set the width
+ - Handles ITU pixel aspects
+ */
+ /* Use mod16 values for better compression */
+ job->width = MULTIPLE_16( job->width );
+ job->height = MULTIPLE_16( job->height );
+ job->width = MAX( 16, job->width );
+ job->height = MAX( 16, job->height );
+
+ /* Set up some variables to make the math easier to follow. */
+ int cropped_width = title->width - job->crop[2] - job->crop[3] ;
+ int cropped_height = title->height - job->crop[0] - job->crop[1] ;
+ int storage_aspect = cropped_width * HB_ASPECT_BASE / cropped_height;
+ int pixels = job->width * (job->width / storage_aspect * HB_ASPECT_BASE);
+
+ /* While keeping the DVD storage aspect, resize the job width and height
+ so they fit into the user's specified dimensions. */
+ hb_set_size(job, -1, pixels, 1);
+
+ if (cropped_width <= 706)
+ {
+ /* Handle ITU PARs */
+ if (title->height == 480)
+ {
+ /* It's NTSC */
+ if (title->aspect == 16)
+ {
+ /* It's widescreen */
+ job->pixel_aspect_width = 40;
+ job->pixel_aspect_height = 33;
+ }
+ else
+ {
+ /*It's 4:3 */
+ job->pixel_aspect_width = 10;
+ job->pixel_aspect_height = 11;
+ }
+ }
+ else if (title->height == 576)
+ {
+ /* It's PAL */
+ if(title->aspect == 16)
+ {
+ /* It's widescreen */
+ job->pixel_aspect_width = 16;
+ job->pixel_aspect_height = 11;
+ }
+ else
+ {
+ /* It's 4:3 */
+ job->pixel_aspect_width = 12;
+ job->pixel_aspect_height = 11;
+ }
+ }
+ }
+
+ /* Figure out what dimensions the source would display at. */
+ int source_display_width = cropped_width * ((float)job->pixel_aspect_width / (float)job->pixel_aspect_height) ;
+
+ /* The film AR is the source's display width / cropped source height.
+ The output display width is the output height * film AR.
+ The output PAR is the output display width / output storage width. */
+ job->pixel_aspect_width = job->height * source_display_width / cropped_height;
+ job->pixel_aspect_height = job->width;
+
+ }
/* Keep width and height within these boundaries */
if (job->maxHeight && (job->height > job->maxHeight) )
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 07:34:45 +0000