]> git.sesse.net Git - vlc/blobdiff - modules/video_filter/clone.c
Use var_InheritString for --decklink-video-connection.
[vlc] / modules / video_filter / clone.c
index 9210b04678dcce6a94a637e3f973c668beff4dc1..33b461cbf55ed033be6653b355fb4c918f922db2 100644 (file)
@@ -1,8 +1,8 @@
 /*****************************************************************************
  * clone.c : Clone video plugin for vlc
  *****************************************************************************
- * Copyright (C) 2002 VideoLAN
- * $Id: clone.c,v 1.2 2002/11/23 02:40:30 sam Exp $
+ * Copyright (C) 2002-2009 the VideoLAN team
+ * $Id$
  *
  * 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
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  *****************************************************************************/
 
 /*****************************************************************************
  * Preamble
  *****************************************************************************/
-#include <stdlib.h>                                      /* malloc(), free() */
-#include <string.h>
 
-#include <vlc/vlc.h>
-#include <vlc/vout.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 
-#include "filter_common.h"
-
-/*****************************************************************************
- * Local prototypes
- *****************************************************************************/
-static int  Create    ( vlc_object_t * );
-static void Destroy   ( vlc_object_t * );
-
-static int  Init      ( vout_thread_t * );
-static void End       ( vout_thread_t * );
-static void Render    ( vout_thread_t *, picture_t * );
-
-static void RemoveAllVout  ( vout_thread_t *p_vout );
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_video_splitter.h>
 
 /*****************************************************************************
  * Module descriptor
  *****************************************************************************/
 #define COUNT_TEXT N_("Number of clones")
-#define COUNT_LONGTEXT N_("Select the number of video windows in which to "\
-    "clone the video")
-
-vlc_module_begin();
-    add_category_hint( N_("Miscellaneous"), NULL );
-    add_integer( "clone-count", 2, NULL, COUNT_TEXT, COUNT_LONGTEXT );
-    set_description( _("image clone video module") );
-    set_capability( "video filter", 0 );
-    add_shortcut( "clone" );
-    set_callbacks( Create, Destroy );
-vlc_module_end();
+#define COUNT_LONGTEXT N_("Number of video windows in which to "\
+    "clone the video.")
 
-/*****************************************************************************
- * vout_sys_t: Clone video output method descriptor
- *****************************************************************************
- * This structure is part of the video output thread descriptor.
- * It describes the Clone specific properties of an output thread.
- *****************************************************************************/
-struct vout_sys_t
-{
-    int    i_clones;
-    vout_thread_t **pp_vout;
-};
+#define VOUTLIST_TEXT N_("Video output modules")
+#define VOUTLIST_LONGTEXT N_("You can use specific video output modules " \
+        "for the clones. Use a comma-separated list of modules." )
 
-/*****************************************************************************
- * Create: allocates Clone video thread output method
- *****************************************************************************
- * This function allocates and initializes a Clone vout method.
- *****************************************************************************/
-static int Create( vlc_object_t *p_this )
-{
-    vout_thread_t *p_vout = (vout_thread_t *)p_this;
+#define CLONE_HELP N_("Duplicate your video to multiple windows " \
+        "and/or video output modules")
+#define CFG_PREFIX "clone-"
 
-    /* Allocate structure */
-    p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
-    if( p_vout->p_sys == NULL )
-    {
-        msg_Err( p_vout, "out of memory" );
-        return( 1 );
-    }
+static int  Open ( vlc_object_t * );
+static void Close( vlc_object_t * );
 
-    p_vout->pf_init = Init;
-    p_vout->pf_end = End;
-    p_vout->pf_manage = NULL;
-    p_vout->pf_render = Render;
-    p_vout->pf_display = NULL;
+vlc_module_begin ()
+    set_description( N_("Clone video filter") )
+    set_capability( "video splitter", 0 )
+    set_shortname( N_("Clone" ))
+    set_help(CLONE_HELP)
+    set_category( CAT_VIDEO )
+    set_subcategory( SUBCAT_VIDEO_VFILTER )
 
-    /* Look what method was requested */
-    p_vout->p_sys->i_clones = config_GetInt( p_vout, "clone-count" );
+    add_integer( CFG_PREFIX "count", 2, NULL, COUNT_TEXT, COUNT_LONGTEXT, false )
+    add_string ( CFG_PREFIX "vout-list", NULL, NULL, VOUTLIST_TEXT, VOUTLIST_LONGTEXT, true )
 
-    p_vout->p_sys->i_clones = __MAX( 1, __MIN( 99, p_vout->p_sys->i_clones ) );
+    add_shortcut( "clone" )
+    set_callbacks( Open, Close )
+vlc_module_end ()
 
-    msg_Dbg( p_vout, "spawning %i clone(s)", p_vout->p_sys->i_clones );
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static const char *const ppsz_filter_options[] = {
+    "count", "vout-list", NULL
+};
 
-    p_vout->p_sys->pp_vout = malloc( p_vout->p_sys->i_clones *
-                                     sizeof(vout_thread_t *) );
-    if( p_vout->p_sys->pp_vout == NULL )
-    {
-        msg_Err( p_vout, "out of memory" );
-        free( p_vout->p_sys );
-        return( 1 );
-    }
+#define VOUTSEPARATOR ','
 
-    return( 0 );
-}
+static int Filter( video_splitter_t *, picture_t *pp_dst[], picture_t * );
 
-/*****************************************************************************
- * Init: initialize Clone video thread output method
- *****************************************************************************/
-static int Init( vout_thread_t *p_vout )
+/**
+ * This function allocates and initializes a Clone splitter module
+ */
+static int Open( vlc_object_t *p_this )
 {
-    int   i_index, i_vout;
-    picture_t *p_pic;
-    
-    I_OUTPUTPICTURES = 0;
+    video_splitter_t *p_splitter = (video_splitter_t*)p_this;
 
-    /* Initialize the output structure */
-    p_vout->output.i_chroma = p_vout->render.i_chroma;
-    p_vout->output.i_width  = p_vout->render.i_width;
-    p_vout->output.i_height = p_vout->render.i_height;
-    p_vout->output.i_aspect = p_vout->render.i_aspect;
+    config_ChainParse( p_splitter, CFG_PREFIX, ppsz_filter_options,
+                       p_splitter->p_cfg );
 
-    /* Try to open the real video output */
-    msg_Dbg( p_vout, "spawning the real video outputs" );
-
-    for( i_vout = 0; i_vout < p_vout->p_sys->i_clones; i_vout++ )
+    char *psz_clonelist = var_CreateGetNonEmptyString( p_splitter,
+                                                       CFG_PREFIX "vout-list" );
+    if( psz_clonelist )
     {
-        p_vout->p_sys->pp_vout[ i_vout ] =
-                vout_CreateThread( p_vout,
-                            p_vout->render.i_width, p_vout->render.i_height,
-                            p_vout->render.i_chroma, p_vout->render.i_aspect );
-        if( p_vout->p_sys->pp_vout[ i_vout ] == NULL )
+        /* Count the number of defined vout */
+        p_splitter->i_output = 1;
+        for( int i = 0; psz_clonelist[i]; i++ )
         {
-            msg_Err( p_vout, "failed to clone %i vout threads",
-                             p_vout->p_sys->i_clones );
-            p_vout->p_sys->i_clones = i_vout;
-            RemoveAllVout( p_vout );
-            return 0;
+            if( psz_clonelist[i] == VOUTSEPARATOR )
+                p_splitter->i_output++;
         }
-    }
 
-    ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
+        /* */
+        p_splitter->p_output = calloc( p_splitter->i_output,
+                                       sizeof(*p_splitter->p_output) );
+        if( !p_splitter->p_output )
+        {
+            free( psz_clonelist );
+            return VLC_EGENERIC;
+        }
 
-    return( 0 );
-}
+        /* Tokenize the list */
+        char *psz_tmp = psz_clonelist;
+        for( int i = 0; psz_tmp && *psz_tmp; i++ )
+        {
+            char *psz_new = strchr( psz_tmp, VOUTSEPARATOR );
+            if( psz_new )
+                *psz_new++ = '\0';
 
-/*****************************************************************************
- * End: terminate Clone video thread output method
- *****************************************************************************/
-static void End( vout_thread_t *p_vout )
-{
-    int i_index;
+            p_splitter->p_output[i].psz_module = strdup( psz_tmp );
 
-    /* Free the fake output buffers we allocated */
-    for( i_index = I_OUTPUTPICTURES ; i_index ; )
-    {
-        i_index--;
-        free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
-    }
-}
+            psz_tmp = psz_new;
+        }
 
-/*****************************************************************************
- * Destroy: destroy Clone video thread output method
- *****************************************************************************
- * Terminate an output method created by CloneCreateOutputMethod
- *****************************************************************************/
-static void Destroy( vlc_object_t *p_this )
-{
-    vout_thread_t *p_vout = (vout_thread_t *)p_this;
+        free( psz_clonelist );
+    }
+    else
+    {
+        /* No list was specified. We will use the default vout, and get
+         * the number of clones from clone-count */
+        p_splitter->i_output = var_CreateGetInteger( p_splitter, CFG_PREFIX "count" );
+        if( p_splitter->i_output <= 0 )
+            p_splitter->i_output = 1;
 
-    RemoveAllVout( p_vout );
+        p_splitter->p_output = calloc( p_splitter->i_output,
+                                       sizeof(*p_splitter->p_output) );
 
-    free( p_vout->p_sys->pp_vout );
-    free( p_vout->p_sys );
-}
+        if( !p_splitter->p_output )
+            return VLC_EGENERIC;
 
-/*****************************************************************************
- * Render: displays previously rendered output
- *****************************************************************************
- * This function send the currently rendered image to Clone image, waits
- * until it is displayed and switch the two rendering buffers, preparing next
- * frame.
- *****************************************************************************/
-static void Render( vout_thread_t *p_vout, picture_t *p_pic )
-{
-    picture_t *p_outpic = NULL;
-    int i_vout, i_plane;
+        for( int i = 0; i < p_splitter->i_output; i++ )
+            p_splitter->p_output[i].psz_module = NULL;
+    }
 
-    for( i_vout = 0; i_vout < p_vout->p_sys->i_clones; i_vout++ )
+    /* */
+    for( int i = 0; i < p_splitter->i_output; i++ )
     {
-        while( ( p_outpic =
-            vout_CreatePicture( p_vout->p_sys->pp_vout[ i_vout ], 0, 0, 0 )
-               ) == NULL )
-        {
-            if( p_vout->b_die || p_vout->b_error )
-            {
-                vout_DestroyPicture(
-                    p_vout->p_sys->pp_vout[ i_vout ], p_outpic );
-                return;
-            }
-
-            msleep( VOUT_OUTMEM_SLEEP );
-        }
-
-        vout_DatePicture( p_vout->p_sys->pp_vout[ i_vout ],
-                          p_outpic, p_pic->date );
-        vout_LinkPicture( p_vout->p_sys->pp_vout[ i_vout ], p_outpic );
+        video_splitter_output_t *p_cfg = &p_splitter->p_output[i];
+        video_format_Copy( &p_cfg->fmt, &p_splitter->fmt );
+        p_cfg->window.i_x = 0;
+        p_cfg->window.i_y = 0;
+        p_cfg->window.i_align = 0;
+    }
 
-        for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
-        {
-            u8 *p_in, *p_in_end, *p_out;
-            int i_in_pitch = p_pic->p[i_plane].i_pitch;
-            const int i_out_pitch = p_outpic->p[i_plane].i_pitch;
+    /* */
+    p_splitter->pf_filter = Filter;
+    p_splitter->pf_mouse  = NULL;
 
-            p_in = p_pic->p[i_plane].p_pixels;
+    msg_Dbg( p_splitter, "spawning %i clone(s)", p_splitter->i_output );
 
-            p_in_end = p_in + p_outpic->p[i_plane].i_lines
-                               * p_pic->p[i_plane].i_pitch;
+    return VLC_SUCCESS;
+}
 
-            p_out = p_outpic->p[i_plane].p_pixels;
+/**
+ * This function closes a clone video splitter module
+ */
+static void Close( vlc_object_t *p_this )
+{
+    video_splitter_t *p_splitter = (video_splitter_t*)p_this;
 
-            while( p_in < p_in_end )
-            {
-                p_vout->p_vlc->pf_memcpy( p_out, p_in, i_out_pitch );
-                p_in += i_in_pitch;
-                p_out += i_out_pitch;
-            }
-        }
+    for( int i = 0; i < p_splitter->i_output; i++ )
+    {
+        video_splitter_output_t *p_cfg = &p_splitter->p_output[i];
 
-        vout_UnlinkPicture( p_vout->p_sys->pp_vout[ i_vout ], p_outpic );
-        vout_DisplayPicture( p_vout->p_sys->pp_vout[ i_vout ], p_outpic );
+        free( p_cfg->psz_module );
+        video_format_Clean( &p_cfg->fmt );
     }
+    free( p_splitter->p_output );
 }
 
-/*****************************************************************************
- * RemoveAllVout: destroy all the child video output threads
- *****************************************************************************/
-static void RemoveAllVout( vout_thread_t *p_vout )
+/**
+ * This function filter a picture
+ */
+static int Filter( video_splitter_t *p_splitter,
+                   picture_t *pp_dst[], picture_t *p_src )
 {
-    while( p_vout->p_sys->i_clones )
+    if( video_splitter_NewPicture( p_splitter, pp_dst ) )
     {
-         --p_vout->p_sys->i_clones;
-         vout_DestroyThread( p_vout->p_sys->pp_vout[p_vout->p_sys->i_clones] );
+        picture_Release( p_src );
+        return VLC_EGENERIC;
     }
+
+    for( int i = 0; i < p_splitter->i_output; i++ )
+        picture_Copy( pp_dst[i], p_src );
+
+    picture_Release( p_src );
+    return VLC_SUCCESS;
 }