title->height - (job->crop[0] + job->crop[1]),
PIX_FMT_YUV420P,
job->width, job->height, PIX_FMT_YUV420P,
- SWS_LANCZOS|SWS_ACCURATE_RND, NULL, NULL, NULL);
+ (uint16_t)(SWS_LANCZOS|SWS_ACCURATE_RND), NULL, NULL, NULL);
// Scale
sws_scale(context,
// Get preview context
context = sws_getContext(job->width, job->height, PIX_FMT_YUV420P,
job->width, job->height, PIX_FMT_RGBA32,
- SWS_LANCZOS|SWS_ACCURATE_RND, NULL, NULL, NULL);
+ (uint16_t)(SWS_LANCZOS|SWS_ACCURATE_RND), NULL, NULL, NULL);
// Create preview
sws_scale(context,
}
/**
+ * Calculates job width and height for anamorphic content.
+ * @param job Handle to hb_job_t.
+ */
+void hb_set_anamorphic_size( hb_job_t * job)
+{
+ hb_title_t * title = job->title;
+
+ /* "Loose" anamorphic.
+ - Uses mod16-compliant dimensions,
+ - Allows users to set the width
+ - Handles ITU pixel aspects
+ */
+
+ /* 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 * 10000 / cropped_height;
+
+ /* Gotta handle bounding dimensions differently
+ than for non-anamorphic encodes:
+ If the width is too big, just reset it with no rescaling.
+ Instead of using the aspect-scaled job height,
+ we need to see if the job width divided by the storage aspect
+ is bigger than the max. If so, set it to the max (this is sloppy).
+ If not, set job height to job width divided by storage aspect.
+ */
+ if ( job->maxWidth && (job->maxWidth < job->width) )
+ job->width = job->maxWidth;
+
+ if ( job->maxHeight && (job->maxHeight < (job->width / storage_aspect * 10000)) )
+ {
+ job->height = job->maxHeight;
+ }
+ else
+ {
+ job->height = job->width * 10000 / storage_aspect;
+ }
+
+ /* Time to get picture dimensions that divide cleanly.
+ These variables will store temporary dimensions as we iterate. */
+ int i, w, h, mod;
+
+ /* In case the user specified a modulus, use it */
+ if (job->modulus)
+ mod = job->modulus;
+ else
+ mod = 16;
+
+ /* Iterate through multiples of mod to find one close to job->width. */
+ for( i = 1;; i++ )
+ {
+ w = mod * i;
+
+ if (w < job->width)
+ {
+ if ( ( job->width - w ) <= ( mod / 2 ) )
+ /* We'll take a width that's
+ smaller, but close enough. */
+ break;
+ }
+ if (w == job->width)
+ /* Mod 16 dimensions, how nice! */
+ break;
+ if( w > job->width )
+ {
+ if ( ( w - job->width ) < (mod/2) )
+ /* We'll take a width that's bigger, if we have to. */
+ break;
+ }
+ }
+ job->width = mod * (i);
+
+ /* Now do the same for a mod-friendly value near job->height. */
+ for( i = 1;; i++)
+ {
+ h = i * mod;
+
+ if (h < job->height)
+ {
+ if ( ( job->height - h ) <= ( mod / 2 ))
+ /* Go with a smaller height,
+ if it's close enough. */
+ break;
+ }
+ if (h == job->height)
+ /* Mod 16 dimensions, how nice! */
+ break;
+
+ if ( h > job->height)
+ {
+ if ( ( h - job->height ) < ( mod / 2 ))
+ /* Use a taller height if necessary */
+ break;
+ }
+ }
+ job->height = mod * (i);
+
+ 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;
+
+ /* While x264 is smart enough to reduce fractions on its own, libavcodec
+ needs some help with the math, so lose superfluous factors. */
+ hb_reduce( &job->pixel_aspect_width, &job->pixel_aspect_height,
+ job->pixel_aspect_width, job->pixel_aspect_height );
+}
+
+/**
* Calculates job width, height, and cropping parameters.
* @param job Handle to hb_job_t.
* @param aspect Desired aspect ratio. Value of -1 uses title aspect.
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