]> git.sesse.net Git - vlc/blobdiff - src/video_output/vout_subpictures.c
No functionnal changes.
[vlc] / src / video_output / vout_subpictures.c
index ff23e52083d476eac46a74ffa38fc154d4d11a5a..8b8a44825950b6758da8ea5d4858b9dd5bf1e910 100644 (file)
@@ -30,6 +30,9 @@
 # include "config.h"
 #endif
 
+#include <assert.h>
+#include <limits.h>
+
 #include <vlc_common.h>
 #include <vlc_vout.h>
 #include <vlc_block.h>
@@ -39,9 +42,6 @@
 #include "vout_internal.h"
 #include <vlc_image.h>
 
-#include <assert.h>
-#include <limits.h>
-
 /*****************************************************************************
  * Local prototypes
  *****************************************************************************/
@@ -184,21 +184,23 @@ static void FilterRelease( filter_t *p_filter );
 /*****************************************************************************
  * Public API
  *****************************************************************************/
+
+#undef spu_Create
 /**
  * Creates the subpicture unit
  *
  * \param p_this the parent object which creates the subpicture unit
  */
-spu_t *__spu_Create( vlc_object_t *p_this )
+spu_t *spu_Create( vlc_object_t *p_this )
 {
     spu_t *p_spu;
     spu_private_t *p_sys;
+
     p_spu = vlc_custom_create( p_this, sizeof(spu_t) + sizeof(spu_private_t),
                                VLC_OBJECT_GENERIC, "subpicture" );
-
     if( !p_spu )
         return NULL;
+    vlc_object_attach( p_spu, p_this );
 
     /* Initialize spu fields */
     p_spu->pf_control = SpuControl;
@@ -214,13 +216,11 @@ spu_t *__spu_Create( vlc_object_t *p_this )
     p_sys->p_scale = NULL;
     p_sys->p_scale_yuvp = NULL;
 
-    p_sys->i_margin = config_GetInt( p_spu, "sub-margin" );
+    p_sys->i_margin = var_InheritInteger( p_spu, "sub-margin" );
 
     /* Register the default subpicture channel */
     p_sys->i_channel = 2;
 
-    vlc_object_attach( p_spu, p_this );
-
     p_sys->psz_chain_update = NULL;
     p_sys->p_chain = filter_chain_New( p_spu, "sub filter", false,
                                        SubFilterAllocationInit,
@@ -302,6 +302,7 @@ void spu_Attach( spu_t *p_spu, vlc_object_t *p_this, bool b_attach )
     if( b_attach )
     {
         UpdateSPU( p_spu, VLC_OBJECT(p_input) );
+        var_Create( p_input, "highlight", VLC_VAR_BOOL );
         var_AddCallback( p_input, "highlight", CropCallback, p_spu );
         var_AddCallback( p_input, "sub-margin", MarginCallback, p_spu->p );
 
@@ -313,9 +314,10 @@ void spu_Attach( spu_t *p_spu, vlc_object_t *p_this, bool b_attach )
     }
     else
     {
-        /* Delete callback */
-        var_DelCallback( p_input, "highlight", CropCallback, p_spu );
+        /* Delete callbacks */
         var_DelCallback( p_input, "sub-margin", MarginCallback, p_spu->p );
+        var_DelCallback( p_input, "highlight", CropCallback, p_spu );
+        var_Destroy( p_input, "highlight" );
         vlc_object_release( p_input );
     }
 }
@@ -475,16 +477,8 @@ void spu_RenderSubpictures( spu_t *p_spu,
         p_region = p_subpic->p_region;
         if( !p_region->fmt.i_sar_num || !p_region->fmt.i_sar_den )
         {
-            if( p_region->fmt.i_aspect != 0 )
-            {
-                p_region->fmt.i_sar_den = p_region->fmt.i_aspect;
-                p_region->fmt.i_sar_num = VOUT_ASPECT_FACTOR;
-            }
-            else
-            {
-                p_region->fmt.i_sar_den = p_fmt_dst->i_sar_den;
-                p_region->fmt.i_sar_num = p_fmt_dst->i_sar_num;
-            }
+            p_region->fmt.i_sar_den = p_fmt_dst->i_sar_den;
+            p_region->fmt.i_sar_num = p_fmt_dst->i_sar_num;
         }
 
         /* Take care of the aspect ratio */
@@ -518,10 +512,17 @@ void spu_RenderSubpictures( spu_t *p_spu,
             if( p_subpic->b_subtitle )
             {
                 area = spu_area_unscaled( area, scale );
+                if( !p_subpic->b_absolute && area.i_width > 0 && area.i_height > 0 )
+                {
+                    p_region->i_x = area.i_x;
+                    p_region->i_y = area.i_y;
+                }
                 if( p_subtitle_area )
                     p_subtitle_area[i_subtitle_area++] = area;
             }
         }
+        if( p_subpic->b_subtitle )
+            p_subpic->b_absolute = true;
     }
 
     /* */
@@ -771,7 +772,6 @@ subpicture_t *subpicture_NewFromPicture( vlc_object_t *p_obj,
     p_subpic->i_original_picture_width  = fmt_out.i_width;
     p_subpic->i_original_picture_height = fmt_out.i_height;
 
-    fmt_out.i_aspect = 0;
     fmt_out.i_sar_num =
     fmt_out.i_sar_den = 0;
 
@@ -815,11 +815,10 @@ subpicture_region_t *subpicture_region_New( const video_format_t *p_fmt )
     if( p_fmt->i_chroma == VLC_CODEC_TEXT )
         return p_region;
 
-    p_region->p_picture = picture_New( p_fmt->i_chroma, p_fmt->i_width, p_fmt->i_height,
-                                       p_fmt->i_aspect );
+    p_region->p_picture = picture_NewFromFormat( p_fmt );
     if( !p_region->p_picture )
     {
-        free( p_fmt->p_palette );
+        free( p_region->fmt.p_palette );
         free( p_region );
         return NULL;
     }
@@ -959,7 +958,6 @@ static void FilterRelease( filter_t *p_filter )
     if( p_filter->p_module )
         module_unneed( p_filter, p_filter->p_module );
 
-    vlc_object_detach( p_filter );
     vlc_object_release( p_filter );
 }
 
@@ -1029,8 +1027,8 @@ static filter_t *CreateAndLoadScale( vlc_object_t *p_obj,
     p_scale->fmt_out.video.i_width =
     p_scale->fmt_out.video.i_height = b_resize ? 16 : 32;
 
-    p_scale->pf_vout_buffer_new = spu_new_video_buffer;
-    p_scale->pf_vout_buffer_del = spu_del_video_buffer;
+    p_scale->pf_video_buffer_new = spu_new_video_buffer;
+    p_scale->pf_video_buffer_del = spu_del_video_buffer;
 
     vlc_object_attach( p_scale, p_obj );
     p_scale->p_module = module_need( p_scale, "video filter2", NULL, false );
@@ -1192,15 +1190,12 @@ static bool spu_area_overlap( spu_area_t a, spu_area_t b )
  * Avoid area overlapping
  */
 static void SpuAreaFixOverlap( spu_area_t *p_dst,
-                               const spu_area_t *p_master,
                                const spu_area_t *p_sub, int i_sub, int i_align )
 {
     spu_area_t a = spu_area_scaled( *p_dst );
     bool b_moved = false;
     bool b_ok;
 
-    assert( p_master->i_x == 0 && p_master->i_y == 0 );
-
     /* Check for overlap
      * XXX It is not fast O(n^2) but we should not have a lot of region */
     do
@@ -1217,8 +1212,6 @@ static void SpuAreaFixOverlap( spu_area_t *p_dst,
             {
                 /* We go down */
                 int i_y = sub.i_y + sub.i_height;
-                if( i_y + a.i_height > p_master->i_height )
-                    break;
                 a.i_y = i_y;
                 b_moved = true;
             }
@@ -1226,8 +1219,6 @@ static void SpuAreaFixOverlap( spu_area_t *p_dst,
             {
                 /* We go up */
                 int i_y = sub.i_y - a.i_height;
-                if( i_y < 0 )
-                    break;
                 a.i_y = i_y;
                 b_moved = true;
             }
@@ -1248,13 +1239,31 @@ static void SpuAreaFixOverlap( spu_area_t *p_dst,
 }
 
 
+static void SpuAreaFitInside( spu_area_t *p_area, const spu_area_t *p_boundary )
+{
+  spu_area_t a = spu_area_scaled( *p_area );
+
+  const int i_error_x = (a.i_x + a.i_width) - p_boundary->i_width;
+  if( i_error_x > 0 )
+      a.i_x -= i_error_x;
+  if( a.i_x < 0 )
+      a.i_x = 0;
+
+  const int i_error_y = (a.i_y + a.i_height) - p_boundary->i_height;
+  if( i_error_y > 0 )
+      a.i_y -= i_error_y;
+  if( a.i_y < 0 )
+      a.i_y = 0;
+
+  *p_area = spu_area_unscaled( a, p_area->scale );
+}
+
 /**
  * Place a region
  */
 static void SpuRegionPlace( int *pi_x, int *pi_y,
                             const subpicture_t *p_subpic,
-                            const subpicture_region_t *p_region,
-                            int i_margin_y )
+                            const subpicture_region_t *p_region )
 {
     const int i_delta_x = p_region->i_x;
     const int i_delta_y = p_region->i_y;
@@ -1294,10 +1303,12 @@ static void SpuRegionPlace( int *pi_x, int *pi_y,
     }
 
     /* Margin shifts all subpictures */
+    /* NOTE We have margin only for subtitles, so we don't really need this here
     if( i_margin_y != 0 )
-        i_y -= i_margin_y;
+        i_y -= i_margin_y;*/
 
     /* Clamp offset to not go out of the screen (when possible) */
+    /* NOTE Again, useful only for subtitles, otherwise goes against the alignment logic above
     const int i_error_x = (i_x + p_region->fmt.i_width) - p_subpic->i_original_picture_width;
     if( i_error_x > 0 )
         i_x -= i_error_x;
@@ -1308,7 +1319,7 @@ static void SpuRegionPlace( int *pi_x, int *pi_y,
     if( i_error_y > 0 )
         i_y -= i_error_y;
     if( i_y < 0 )
-        i_y = 0;
+        i_y = 0;*/
 
     *pi_x = i_x;
     *pi_y = i_y;
@@ -1395,7 +1406,7 @@ static void SpuRenderRegion( spu_t *p_spu,
     /* Place the picture
      * We compute the position in the rendered size */
     SpuRegionPlace( &i_x_offset, &i_y_offset,
-                    p_subpic, p_region, i_margin_y );
+                    p_subpic, p_region );
 
     /* Save this position for subtitle overlap support
      * it is really important that there are given without scale_size applied */
@@ -1406,16 +1417,26 @@ static void SpuRenderRegion( spu_t *p_spu,
     /* Handle overlapping subtitles when possible */
     if( p_subpic->b_subtitle && !p_subpic->b_absolute )
     {
+        SpuAreaFixOverlap( p_area, p_subtitle_area, i_subtitle_area,
+                           p_region->i_align );
+    }
+
+    /* we copy the area: for the subtitle overlap support we want
+     * to only save the area without margin applied */
+    spu_area_t restrained = *p_area;
+
+    /* apply margin to subtitles and correct if they go over the picture edge */
+    if( p_subpic->b_subtitle )
+    {
+        restrained.i_y -= i_margin_y;
         spu_area_t display = spu_area_create( 0, 0, p_fmt->i_width, p_fmt->i_height,
                                               spu_scale_unit() );
-
-        SpuAreaFixOverlap( p_area, &display, p_subtitle_area, i_subtitle_area,
-                           p_region->i_align );
+        SpuAreaFitInside( &restrained, &display );
     }
 
     /* Fix the position for the current scale_size */
-    i_x_offset = spu_scale_w( p_area->i_x, p_area->scale );
-    i_y_offset = spu_scale_h( p_area->i_y, p_area->scale );
+    i_x_offset = spu_scale_w( restrained.i_x, restrained.scale );
+    i_y_offset = spu_scale_h( restrained.i_y, restrained.scale );
 
     /* */
     if( b_force_palette )
@@ -1662,8 +1683,6 @@ static int SubpictureCmp( const void *s0, const void *s1 )
         r = IntegerCmp( p_subpic0->i_channel, p_subpic1->i_channel );
     if( !r )
         r = IntegerCmp( p_subpic0->i_order, p_subpic1->i_order );
-    //NOTE We swap subtitle order so that newer subtitles push older ones higher.
-    if( p_subpic0->b_subtitle && p_subpic1->b_subtitle ) r = !r;
     return r;
 }
 
@@ -1843,8 +1862,7 @@ static picture_t *spu_new_video_buffer( filter_t *p_filter )
     const video_format_t *p_fmt = &p_filter->fmt_out.video;
 
     VLC_UNUSED(p_filter);
-    return picture_New( p_fmt->i_chroma,
-                        p_fmt->i_width, p_fmt->i_height, p_fmt->i_aspect );
+    return picture_NewFromFormat( p_fmt );
 }
 static void spu_del_video_buffer( filter_t *p_filter, picture_t *p_picture )
 {