]> git.sesse.net Git - vlc/blobdiff - modules/video_filter/transform.c
* include/video_output.h, ALL: changed api for vout_Request()/vout_Create() to be...
[vlc] / modules / video_filter / transform.c
index dd960741d57f74be0e9ce6315083be2973832394..954b96b2dd559788d3bd838516475c366c4d90e2 100644 (file)
@@ -1,8 +1,8 @@
 /*****************************************************************************
- * transform.c : transform image plugin for vlc
+ * transform.c : transform image module for vlc
  *****************************************************************************
- * Copyright (C) 2000, 2001, 2002, 2003 VideoLAN
- * $Id: transform.c,v 1.7 2003/01/17 16:18:03 sam Exp $
+ * Copyright (C) 2000-2004 VideoLAN
+ * $Id$
  *
  * Authors: Samuel Hocevar <sam@zoy.org>
  *
@@ -54,17 +54,25 @@ static int  SendEvents( vlc_object_t *, char const *,
 /*****************************************************************************
  * Module descriptor
  *****************************************************************************/
-#define TYPE_TEXT N_("transform type")
+#define TYPE_TEXT N_("Transform type")
 #define TYPE_LONGTEXT N_("One of '90', '180', '270', 'hflip' and 'vflip'")
 
-static char *type_list[] = { "90", "180", "270", "hflip", "vflip", NULL };
+static char *type_list[] = { "90", "180", "270", "hflip", "vflip" };
+static char *type_list_text[] = { N_("Rotate by 90 degrees"),
+  N_("Rotate by 180 degrees"), N_("Rotate by 270 degrees"),
+  N_("Flip horizontally"), N_("Flip vertically") };
 
 vlc_module_begin();
-    add_category_hint( N_("Miscellaneous"), NULL );
-    add_string_from_list( "transform-type", "90", type_list, NULL,
-                          TYPE_TEXT, TYPE_LONGTEXT);
-    set_description( _("image transformation module") );
+    set_description( _("Video transformation filter") );
+    set_shortname( N_("Transformation"));
     set_capability( "video filter", 0 );
+    set_category( CAT_VIDEO );
+    set_subcategory( SUBCAT_VIDEO_VFILTER );
+
+    add_string( "transform-type", "90", NULL,
+                          TYPE_TEXT, TYPE_LONGTEXT, VLC_FALSE);
+        change_string_list( type_list, type_list_text, 0);
+
     add_shortcut( "transform" );
     set_callbacks( Create, Destroy );
 vlc_module_end();
@@ -82,6 +90,14 @@ struct vout_sys_t
     vout_thread_t *p_vout;
 };
 
+/*****************************************************************************
+ * Control: control facility for the vout (forwards to child vout)
+ *****************************************************************************/
+static int Control( vout_thread_t *p_vout, int i_query, va_list args )
+{
+    return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
+}
+
 /*****************************************************************************
  * Create: allocates Transform video thread output method
  *****************************************************************************
@@ -105,6 +121,7 @@ static int Create( vlc_object_t *p_this )
     p_vout->pf_manage = NULL;
     p_vout->pf_render = Render;
     p_vout->pf_display = NULL;
+    p_vout->pf_control = Control;
 
     /* Look what method was requested */
     psz_method = config_GetPsz( p_vout, "transform-type" );
@@ -153,7 +170,7 @@ static int Create( vlc_object_t *p_this )
         free( psz_method );
     }
 
-    return VLC_EGENERIC;
+    return VLC_SUCCESS;
 }
 
 /*****************************************************************************
@@ -163,6 +180,7 @@ static int Init( vout_thread_t *p_vout )
 {
     int i_index;
     picture_t *p_pic;
+    video_format_t fmt = {0};
 
     I_OUTPUTPICTURES = 0;
 
@@ -172,23 +190,31 @@ static int Init( vout_thread_t *p_vout )
     p_vout->output.i_height = p_vout->render.i_height;
     p_vout->output.i_aspect = p_vout->render.i_aspect;
 
+    fmt.i_width = fmt.i_visible_width = p_vout->render.i_width;
+    fmt.i_height = fmt.i_visible_height = p_vout->render.i_height;
+    fmt.i_x_offset = fmt.i_y_offset = 0;
+    fmt.i_chroma = p_vout->render.i_chroma;
+    fmt.i_aspect = p_vout->render.i_aspect;
+    fmt.i_sar_num = p_vout->render.i_aspect * fmt.i_height / fmt.i_width;
+    fmt.i_sar_den = VOUT_ASPECT_FACTOR;
+
     /* Try to open the real video output */
     msg_Dbg( p_vout, "spawning the real video output" );
 
     if( p_vout->p_sys->b_rotation )
     {
-        p_vout->p_sys->p_vout = vout_Create( p_vout,
-                           p_vout->render.i_height, p_vout->render.i_width,
-                           p_vout->render.i_chroma,
-                           (uint64_t)VOUT_ASPECT_FACTOR
-                            * (uint64_t)VOUT_ASPECT_FACTOR
-                            / (uint64_t)p_vout->render.i_aspect );
+        fmt.i_width = fmt.i_visible_width = p_vout->render.i_height;
+        fmt.i_height = fmt.i_visible_height = p_vout->render.i_width;
+        fmt.i_aspect = VOUT_ASPECT_FACTOR *
+            (uint64_t)VOUT_ASPECT_FACTOR / p_vout->render.i_aspect;
+        fmt.i_sar_num = VOUT_ASPECT_FACTOR;
+        fmt.i_sar_den = p_vout->render.i_aspect * fmt.i_height / fmt.i_width;
+
+        p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
     }
     else
     {
-        p_vout->p_sys->p_vout = vout_Create( p_vout,
-                           p_vout->render.i_width, p_vout->render.i_height,
-                           p_vout->render.i_chroma, p_vout->render.i_aspect );
+        p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
     }
 
     /* Everything failed */
@@ -202,6 +228,8 @@ static int Init( vout_thread_t *p_vout )
 
     ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
 
+    ADD_PARENT_CALLBACKS( SendEventsToChild );
+
     return VLC_SUCCESS;
 }
 
@@ -229,8 +257,14 @@ 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 );
-    vout_Destroy( p_vout->p_sys->p_vout );
+    if( p_vout->p_sys->p_vout )
+    {
+        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 );
 }
@@ -271,8 +305,9 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
                 uint8_t *p_in = p_pic->p[i_index].p_pixels;
 
                 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
-                uint8_t *p_out_end = p_out + p_outpic->p[i_index].i_lines
-                                              * p_outpic->p[i_index].i_pitch;
+                uint8_t *p_out_end = p_out +
+                    p_outpic->p[i_index].i_visible_lines *
+                    p_outpic->p[i_index].i_pitch;
 
                 for( ; p_out < p_out_end ; )
                 {
@@ -280,7 +315,8 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
 
                     p_out_end -= p_outpic->p[i_index].i_pitch
                                   - p_outpic->p[i_index].i_visible_pitch;
-                    p_line_end = p_in + p_pic->p[i_index].i_lines * i_pitch;
+                    p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
+                        i_pitch;
 
                     for( ; p_in < p_line_end ; )
                     {
@@ -297,7 +333,7 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
             for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
             {
                 uint8_t *p_in = p_pic->p[i_index].p_pixels;
-                uint8_t *p_in_end = p_in + p_pic->p[i_index].i_lines
+                uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
                                             * p_pic->p[i_index].i_pitch;
 
                 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
@@ -328,14 +364,16 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
                 uint8_t *p_in = p_pic->p[i_index].p_pixels;
 
                 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
-                uint8_t *p_out_end = p_out + p_outpic->p[i_index].i_lines
-                                              * p_outpic->p[i_index].i_pitch;
+                uint8_t *p_out_end = p_out +
+                    p_outpic->p[i_index].i_visible_lines *
+                    p_outpic->p[i_index].i_pitch;
 
                 for( ; p_out < p_out_end ; )
                 {
                     uint8_t *p_in_end;
 
-                    p_in_end = p_in + p_pic->p[i_index].i_lines * i_pitch;
+                    p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
+                        i_pitch;
 
                     for( ; p_in < p_in_end ; )
                     {
@@ -350,11 +388,11 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
             }
             break;
 
-        case TRANSFORM_MODE_VFLIP:
+        case TRANSFORM_MODE_HFLIP:
             for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
             {
                 uint8_t *p_in = p_pic->p[i_index].p_pixels;
-                uint8_t *p_in_end = p_in + p_pic->p[i_index].i_lines
+                uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
                                             * p_pic->p[i_index].i_pitch;
 
                 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
@@ -369,11 +407,11 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
             }
             break;
 
-        case TRANSFORM_MODE_HFLIP:
+        case TRANSFORM_MODE_VFLIP:
             for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
             {
                 uint8_t *p_in = p_pic->p[i_index].p_pixels;
-                uint8_t *p_in_end = p_in + p_pic->p[i_index].i_lines
+                uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
                                             * p_pic->p[i_index].i_pitch;
 
                 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
@@ -462,3 +500,13 @@ static int SendEvents( vlc_object_t *p_this, char const *psz_var,
     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;
+}