]> git.sesse.net Git - vlc/blobdiff - modules/video_filter/crop.c
* Stringreview !!!
[vlc] / modules / video_filter / crop.c
index 73184183ab5715b4c1917d6d1aabdf0af7428653..96fa478b9d2a639ec92bc05fd784df5ef31ad16b 100644 (file)
@@ -1,8 +1,8 @@
 /*****************************************************************************
  * crop.c : Crop video plugin for vlc
  *****************************************************************************
- * Copyright (C) 2002 VideoLAN
- * $Id: crop.c,v 1.5 2002/12/06 16:34:07 sam Exp $
+ * Copyright (C) 2002, 2003 VideoLAN
+ * $Id: crop.c,v 1.15 2004/01/25 20:05:28 hartman Exp $
  *
  * Authors: Samuel Hocevar <sam@zoy.org>
  *
@@ -10,7 +10,7 @@
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- * 
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ -45,21 +45,25 @@ static void Render    ( vout_thread_t *, picture_t * );
 
 static void UpdateStats    ( vout_thread_t *, picture_t * );
 
+static int  SendEvents( vlc_object_t *, char const *,
+                        vlc_value_t, vlc_value_t, void * );
+
 /*****************************************************************************
  * Module descriptor
  *****************************************************************************/
-#define GEOMETRY_TEXT N_("crop geometry")
-#define GEOMETRY_LONGTEXT N_("Set the geometry of the zone to crop")
+#define GEOMETRY_TEXT N_("Crop geometry (pixels)")
+#define GEOMETRY_LONGTEXT N_("Set the geometry of the zone to crop. This is set as width x heigth + left offset + top offset.")
 
-#define AUTOCROP_TEXT N_("automatic cropping")
-#define AUTOCROP_LONGTEXT N_("Activate automatic black border cropping")
+#define AUTOCROP_TEXT N_("Automatic cropping")
+#define AUTOCROP_LONGTEXT N_("Activate automatic black border cropping.")
 
 vlc_module_begin();
-    add_category_hint( N_("Miscellaneous"), NULL );
-    add_string( "crop-geometry", NULL, NULL, GEOMETRY_TEXT, GEOMETRY_LONGTEXT );
-    add_bool( "autocrop", 0, NULL, AUTOCROP_TEXT, AUTOCROP_LONGTEXT );
-    set_description( _("image crop video module") );
+    set_description( _("Crop video filter") );
     set_capability( "video filter", 0 );
+
+    add_string( "crop-geometry", NULL, NULL, GEOMETRY_TEXT, GEOMETRY_LONGTEXT, VLC_FALSE );
+    add_bool( "autocrop", 0, NULL, AUTOCROP_TEXT, AUTOCROP_LONGTEXT, VLC_FALSE );
+
     add_shortcut( "crop" );
     set_callbacks( Create, Destroy );
 vlc_module_end();
@@ -98,7 +102,7 @@ static int Create( vlc_object_t *p_this )
     if( p_vout->p_sys == NULL )
     {
         msg_Err( p_vout, "out of memory" );
-        return 1;
+        return VLC_ENOMEM;
     }
 
     p_vout->pf_init = Init;
@@ -107,7 +111,7 @@ static int Create( vlc_object_t *p_this )
     p_vout->pf_render = Render;
     p_vout->pf_display = NULL;
 
-    return 0;
+    return VLC_SUCCESS;
 }
 
 /*****************************************************************************
@@ -118,11 +122,11 @@ static int Init( vout_thread_t *p_vout )
     int   i_index;
     char *psz_var;
     picture_t *p_pic;
-    
+
     I_OUTPUTPICTURES = 0;
 
     p_vout->p_sys->i_lastchange = 0;
-    p_vout->p_sys->b_changed = 0;
+    p_vout->p_sys->b_changed = VLC_FALSE;
 
     /* Initialize the output structure */
     p_vout->output.i_chroma = p_vout->render.i_chroma;
@@ -238,12 +242,16 @@ static int Init( vout_thread_t *p_vout )
     if( p_vout->p_sys->p_vout == NULL )
     {
         msg_Err( p_vout, "failed to create vout" );
-        return 0;
+        return VLC_EGENERIC;
     }
 
     ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
 
-    return 0;
+    ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
+
+    ADD_PARENT_CALLBACKS( SendEventsToChild );
+
+    return VLC_SUCCESS;
 }
 
 /*****************************************************************************
@@ -270,7 +278,12 @@ static void Destroy( vlc_object_t *p_this )
 {
     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 
+    DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
+    vlc_object_detach( p_vout->p_sys->p_vout );
     vout_Destroy( p_vout->p_sys->p_vout );
+
+    DEL_PARENT_CALLBACKS( SendEventsToChild );
+
     free( p_vout->p_sys );
 }
 
@@ -284,7 +297,7 @@ static int Manage( vout_thread_t *p_vout )
 {
     if( !p_vout->p_sys->b_changed )
     {
-        return 0;
+        return VLC_SUCCESS;
     }
 
     vout_Destroy( p_vout->p_sys->p_vout );
@@ -295,13 +308,13 @@ static int Manage( vout_thread_t *p_vout )
     if( p_vout->p_sys->p_vout == NULL )
     {
         msg_Err( p_vout, "failed to create vout" );
-        return 1;
+        return VLC_EGENERIC;
     }
 
-    p_vout->p_sys->b_changed = 0;
+    p_vout->p_sys->b_changed = VLC_FALSE;
     p_vout->p_sys->i_lastchange = 0;
 
-    return 0;
+    return VLC_SUCCESS;
 }
 
 /*****************************************************************************
@@ -339,9 +352,10 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
 
     for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
     {
-        u8 *p_in, *p_out, *p_out_end;
+        uint8_t *p_in, *p_out, *p_out_end;
         int i_in_pitch = p_pic->p[i_plane].i_pitch;
         const int i_out_pitch = p_outpic->p[i_plane].i_pitch;
+        const int i_copy_pitch = p_outpic->p[i_plane].i_visible_pitch;
 
         p_in = p_pic->p[i_plane].p_pixels
                 /* Skip the right amount of lines */
@@ -355,7 +369,7 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
 
         while( p_out < p_out_end )
         {
-            p_vout->p_vlc->pf_memcpy( p_out, p_in, i_out_pitch );
+            p_vout->p_vlc->pf_memcpy( p_out, p_in, i_copy_pitch );
             p_in += i_in_pitch;
             p_out += i_out_pitch;
         }
@@ -365,18 +379,17 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
     vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
 
     /* The source image may still be in the cache ... parse it! */
-    if( !p_vout->p_sys->b_autocrop )
+    if( p_vout->p_sys->b_autocrop )
     {
-        return;
+        UpdateStats( p_vout, p_pic );
     }
-
-    UpdateStats( p_vout, p_pic );
 }
 
 static void UpdateStats( vout_thread_t *p_vout, picture_t *p_pic )
 {
     uint8_t *p_in = p_pic->p[0].p_pixels;
     int i_pitch = p_pic->p[0].i_pitch;
+    int i_visible_pitch = p_pic->p[0].i_visible_pitch;
     int i_lines = p_pic->p[0].i_lines;
     int i_firstwhite = -1, i_lastwhite = -1, i;
 
@@ -391,8 +404,8 @@ static void UpdateStats( vout_thread_t *p_vout, picture_t *p_pic )
             const int i_col = i * i_pitch / i_lines;
 
             if( p_in[i_col/2] > 40
-                 && p_in[i_pitch / 2] > 40
-                 && p_in[i_pitch/2 + i_col/2] > 40 )
+                 && p_in[i_visible_pitch/2] > 40
+                 && p_in[i_visible_pitch/2 + i_col/2] > 40 )
             {
                 if( i_lastwhite == -1 )
                 {
@@ -457,5 +470,40 @@ static void UpdateStats( vout_thread_t *p_vout, picture_t *p_pic )
                             * p_vout->output.i_height / p_vout->p_sys->i_height
                             * p_vout->p_sys->i_width / p_vout->output.i_width;
 
-    p_vout->p_sys->b_changed = 1;
+    p_vout->p_sys->b_changed = VLC_TRUE;
+}
+
+/*****************************************************************************
+ * SendEvents: forward mouse and keyboard events to the parent p_vout
+ *****************************************************************************/
+static int SendEvents( vlc_object_t *p_this, char const *psz_var,
+                       vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
+{
+    vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
+    vlc_value_t sentval = newval;
+
+    /* Translate the mouse coordinates */
+    if( !strcmp( psz_var, "mouse-x" ) )
+    {
+        sentval.i_int += p_vout->p_sys->i_x;
+    }
+    else if( !strcmp( psz_var, "mouse-y" ) )
+    {
+        sentval.i_int += p_vout->p_sys->i_y;
+    }
+
+    var_Set( p_vout, psz_var, sentval );
+
+    return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * SendEventsToChild: forward events to the child/children vout
+ *****************************************************************************/
+static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
+                       vlc_value_t oldval, vlc_value_t newval, void *p_data )
+{
+    vout_thread_t *p_vout = (vout_thread_t *)p_this;
+    var_Set( p_vout->p_sys->p_vout, psz_var, newval );
+    return VLC_SUCCESS;
 }