Oops.

src/control/video.c

+/*****************************************************************************
+ * video.c: libvlc new API video functions
+ *****************************************************************************
+ * Copyright (C) 2005 the VideoLAN team
+ *
+ * $Id: core.c 14187 2006-02-07 16:37:40Z courmisch $
+ *
+ * Authors: Cl�ent Stenac <zorglub@videolan.org>
+ *          Filippo Carone <littlejohn@videolan.org>
+ *          Jean-Paul Saman <jpsaman _at_ m2x _dot_ nl>
+ *          Damien Fouilleul <damienf a_t videolan dot org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * 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
+ * GNU General Public License for more details.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#include "libvlc_internal.h"
+#include <vlc/libvlc.h>
+#include <vlc_input.h>
+#include <vlc_vout.h>
+
+/*
+ * Remember to release the returned vout_thread_t since it is locked at
+ * the end of this function.
+ */
+static vout_thread_t *GetVout( libvlc_media_instance_t *p_mi,
+                               libvlc_exception_t *p_exception )
+{
+    input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi, p_exception );
+    vout_thread_t *p_vout = NULL;
+
+    if( p_input_thread )
+    {
+        p_vout = vlc_object_find( p_input_thread, VLC_OBJECT_VOUT, FIND_CHILD );
+        if( !p_vout )
+        {
+            libvlc_exception_raise( p_exception, "No active video output" );
+        }
+        vlc_object_release( p_input_thread );
+    }
+    return p_vout;
+}
+
+/**********************************************************************
+ * Exported functions
+ **********************************************************************/
+
+void libvlc_set_fullscreen( libvlc_media_instance_t *p_mi, int b_fullscreen,
+                            libvlc_exception_t *p_e )
+{
+    /* We only work on the first vout */
+    vout_thread_t *p_vout1 = GetVout( p_mi, p_e );
+    vlc_value_t val; int i_ret;
+
+    /* GetVout will raise the exception for us */
+    if( !p_vout1 )
+    {
+        return;
+    }
+
+    if( b_fullscreen ) val.b_bool = VLC_TRUE;
+    else               val.b_bool = VLC_FALSE;
+
+    i_ret = var_Set( p_vout1, "fullscreen", val );
+    if( i_ret )
+        libvlc_exception_raise( p_e,
+                        "Unexpected error while setting fullscreen value" );
+
+    vlc_object_release( p_vout1 );
+}
+
+int libvlc_get_fullscreen( libvlc_media_instance_t *p_mi,
+                            libvlc_exception_t *p_e )
+{
+    /* We only work on the first vout */
+    vout_thread_t *p_vout1 = GetVout( p_mi, p_e );
+    vlc_value_t val; int i_ret;
+
+    /* GetVout will raise the exception for us */
+    if( !p_vout1 )
+        return 0;
+
+    i_ret = var_Get( p_vout1, "fullscreen", &val );
+    if( i_ret )
+        libvlc_exception_raise( p_e,
+                        "Unexpected error while looking up fullscreen value" );
+
+    return val.b_bool == VLC_TRUE ? 1 : 0;
+}
+
+void libvlc_toggle_fullscreen( libvlc_media_instance_t *p_mi,
+                               libvlc_exception_t *p_e )
+{
+    /* We only work on the first vout */
+    vout_thread_t *p_vout1 = GetVout( p_mi, p_e );
+    vlc_value_t val; int i_ret;
+
+    /* GetVout will raise the exception for us */
+    if( !p_vout1 )
+        return;
+
+    i_ret = var_Get( p_vout1, "fullscreen", &val );
+    if( i_ret )
+        libvlc_exception_raise( p_e,
+                        "Unexpected error while looking up fullscreen value" );
+
+    val.b_bool = !val.b_bool;
+    i_ret = var_Set( p_vout1, "fullscreen", val );
+    if( i_ret )
+        libvlc_exception_raise( p_e,
+                        "Unexpected error while setting fullscreen value" );
+
+    vlc_object_release( p_vout1 );
+}
+
+void
+libvlc_video_take_snapshot( libvlc_media_instance_t *p_mi, char *psz_filepath,
+                       libvlc_exception_t *p_e )
+{
+    vout_thread_t *p_vout = GetVout( p_mi, p_e );
+    input_thread_t *p_input_thread;
+
+    /* GetVout will raise the exception for us */
+    if( !p_vout )
+    {
+        return;
+    }
+
+    if( !psz_filepath )
+    {
+        libvlc_exception_raise( p_e, "filepath is null" );
+        return;
+    }
+
+
+    p_input_thread = (input_thread_t*)vlc_object_get(
+                                 p_mi->p_libvlc_instance->p_libvlc_int,
+                                 p_mi->i_input_id );
+    if( !p_input_thread )
+    {
+        libvlc_exception_raise( p_e, "Input does not exist" );
+        return;
+    }
+
+    var_SetString( p_vout, "snapshot-path", psz_filepath );
+    var_SetString( p_vout, "snapshot-format", "png" );
+
+    vout_Control( p_vout, VOUT_SNAPSHOT );
+    vlc_object_release( p_vout );
+    vlc_object_release( p_input_thread );
+}
+
+int libvlc_video_get_height( libvlc_media_instance_t *p_mi,
+                             libvlc_exception_t *p_e ) 
+{
+    vout_thread_t *p_vout1 = GetVout( p_mi, p_e );
+    if( !p_vout1 )
+        return 0;
+
+    vlc_object_release( p_vout1 );
+
+    return p_vout1->i_window_height;
+}
+
+int libvlc_video_get_width( libvlc_media_instance_t *p_mi,
+                            libvlc_exception_t *p_e ) 
+{
+    vout_thread_t *p_vout1 = GetVout( p_mi, p_e );
+    if( !p_vout1 )
+        return 0;
+
+    vlc_object_release( p_vout1 );
+
+    return p_vout1->i_window_width;
+}
+
+vlc_bool_t libvlc_media_instance_has_vout( libvlc_media_instance_t *p_mi,
+                                  libvlc_exception_t *p_e )
+{
+    input_thread_t *p_input_thread = libvlc_get_input_thread(p_mi, p_e);
+    vlc_bool_t has_vout = VLC_FALSE;
+
+    if( p_input_thread )
+    {
+        vout_thread_t *p_vout;
+
+        p_vout = vlc_object_find( p_input_thread, VLC_OBJECT_VOUT, FIND_CHILD );
+        if( p_vout )
+        {
+            has_vout = VLC_TRUE;
+            vlc_object_release( p_vout );
+        }
+        vlc_object_release( p_input_thread );
+    }
+    return has_vout;
+}
+
+int libvlc_video_reparent( libvlc_media_instance_t *p_mi, libvlc_drawable_t d,
+                           libvlc_exception_t *p_e )
+{
+    vout_thread_t *p_vout = GetVout( p_mi, p_e );
+
+    if( p_vout )
+    {
+        vout_Control( p_vout , VOUT_REPARENT, d);
+        vlc_object_release( p_vout );
+    }
+    return 0;
+}
+
+void libvlc_video_resize( libvlc_media_instance_t *p_mi, int width, int height, libvlc_exception_t *p_e )
+{
+    vout_thread_t *p_vout = GetVout( p_mi, p_e );
+    if( p_vout )
+    {
+        vout_Control( p_vout, VOUT_SET_SIZE, width, height );
+        vlc_object_release( p_vout );
+    }
+}
+
+void libvlc_video_redraw_rectangle( libvlc_media_instance_t *p_mi,
+                           const libvlc_rectangle_t *area,
+                           libvlc_exception_t *p_e )
+{
+    if( (NULL != area)
+     && ((area->bottom - area->top) > 0)
+     && ((area->right - area->left) > 0) )
+    {
+        vout_thread_t *p_vout = GetVout( p_mi, p_e );
+        if( p_vout )
+        {
+            /* tell running vout to redraw area */
+            vout_Control( p_vout , VOUT_REDRAW_RECT,
+                               area->top, area->left, area->bottom, area->right );
+            vlc_object_release( p_vout );
+        }
+    }
+}
+
+/* global video settings */
+
+void libvlc_video_set_parent( libvlc_instance_t *p_instance, libvlc_drawable_t d,
+                              libvlc_exception_t *p_e )
+{
+    /* set as default for future vout instances */
+    var_SetInteger(p_instance->p_libvlc_int, "drawable", (int)d);
+
+    if( libvlc_playlist_isplaying(p_instance, p_e) )
+    {
+        libvlc_media_instance_t *p_mi = libvlc_playlist_get_media_instance(p_instance, p_e);
+        if( p_mi )
+        {
+            vout_thread_t *p_vout = GetVout( p_mi, p_e );
+            if( p_vout )
+            {
+                /* tell running vout to re-parent */
+                vout_Control( p_vout , VOUT_REPARENT, d);
+                vlc_object_release( p_vout );
+            }
             libvlc_media_instance_release(p_mi);
+        }
+    }
+}
+
+libvlc_drawable_t libvlc_video_get_parent( libvlc_instance_t *p_instance, libvlc_exception_t *p_e )
+{
+    libvlc_drawable_t result;
+    
+    result = var_GetInteger( p_instance->p_libvlc_int, "drawable" );
+    
+    return result;
+}
+
+
+void libvlc_video_set_size( libvlc_instance_t *p_instance, int width, int height,
+                           libvlc_exception_t *p_e )
+{
+    /* set as default for future vout instances */
+    config_PutInt(p_instance->p_libvlc_int, "width", width);
+    config_PutInt(p_instance->p_libvlc_int, "height", height);
+
+    if( libvlc_playlist_isplaying(p_instance, p_e) )
+    {
+        libvlc_media_instance_t *p_mi = libvlc_playlist_get_media_instance(p_instance, p_e);
+        if( p_mi )
+        {
+            vout_thread_t *p_vout = GetVout( p_mi, p_e );
+            if( p_vout )
+            {
+                /* tell running vout to re-size */
+                vout_Control( p_vout , VOUT_SET_SIZE, width, height);
+                vlc_object_release( p_vout );
+            }
             libvlc_media_instance_release(p_mi);
+        }
+    }
+}
+
+void libvlc_video_set_viewport( libvlc_instance_t *p_instance,
+                            const libvlc_rectangle_t *view, const libvlc_rectangle_t *clip,
+                           libvlc_exception_t *p_e )
+{
+    if( NULL == view )
+    {
+        libvlc_exception_raise( p_e, "viewport is NULL" );
+    }
+
+    /* if clip is NULL, then use view rectangle as clip */
+    if( NULL == clip )
+        clip = view;
+
+    /* set as default for future vout instances */
+    var_SetInteger( p_instance->p_libvlc_int, "drawable-view-top", view->top );
+    var_SetInteger( p_instance->p_libvlc_int, "drawable-view-left", view->left );
+    var_SetInteger( p_instance->p_libvlc_int, "drawable-view-bottom", view->bottom );
+    var_SetInteger( p_instance->p_libvlc_int, "drawable-view-right", view->right );
+    var_SetInteger( p_instance->p_libvlc_int, "drawable-clip-top", clip->top );
+    var_SetInteger( p_instance->p_libvlc_int, "drawable-clip-left", clip->left );
+    var_SetInteger( p_instance->p_libvlc_int, "drawable-clip-bottom", clip->bottom );
+    var_SetInteger( p_instance->p_libvlc_int, "drawable-clip-right", clip->right );
+
+    if( libvlc_playlist_isplaying(p_instance, p_e) )
+    {
+        libvlc_media_instance_t *p_mi = libvlc_playlist_get_media_instance(p_instance, p_e);
+        if( p_mi )
+        {
+            vout_thread_t *p_vout = GetVout( p_mi, p_e );
+            if( p_vout )
+            {
+                /* change viewport for running vout */
+                vout_Control( p_vout , VOUT_SET_VIEWPORT,
+                                   view->top, view->left, view->bottom, view->right,
+                                   clip->top, clip->left, clip->bottom, clip->right );
+                vlc_object_release( p_vout );
+            }
             libvlc_media_instance_release(p_mi);
+        }
+    }
+}
+
+char *libvlc_video_get_aspect_ratio( libvlc_media_instance_t *p_mi,
+                                     libvlc_exception_t *p_e )
+{
+    char *psz_aspect = 0;
+    vout_thread_t *p_vout = GetVout( p_mi, p_e );
+
+    if( !p_vout )
+        return 0;
+
+    psz_aspect = var_GetString( p_vout, "aspect-ratio" );
+    vlc_object_release( p_vout );
+    return psz_aspect;
+}
+
+void libvlc_video_set_aspect_ratio( libvlc_media_instance_t *p_mi,
+                                    char *psz_aspect, libvlc_exception_t *p_e )
+{
+    vout_thread_t *p_vout = GetVout( p_mi, p_e );
+    int i_ret = -1;
+
+    if( !p_vout )
+        return;
+
+    i_ret = var_SetString( p_vout, "aspect-ratio", psz_aspect );
+    if( i_ret )
+        libvlc_exception_raise( p_e,
+                        "Unexpected error while setting aspect-ratio value" );
+
+    vlc_object_release( p_vout );
+}
+
+int libvlc_video_get_spu( libvlc_media_instance_t *p_mi,
+                          libvlc_exception_t *p_e )
+{
+    input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi, p_e );
+    vlc_value_t val_list;
+    vlc_value_t val;
+    int i_spu = -1;
+    int i_ret = -1;
+    int i;
+
+    if( !p_input_thread )
+        return -1;
+
+    i_ret = var_Get( p_input_thread, "spu-es", &val );
+    if( i_ret < 0 )
+    {
+        libvlc_exception_raise( p_e, "Getting subtitle information failed" );
+        vlc_object_release( p_input_thread );
+        return i_ret;
+    }
+
+    var_Change( p_input_thread, "spu-es", VLC_VAR_GETCHOICES, &val_list, NULL );
+    for( i = 0; i < val_list.p_list->i_count; i++ )
+    {
+        vlc_value_t spu_val = val_list.p_list->p_values[i];
+        if( val.i_int == spu_val.i_int )
+        {
+            i_spu = i;
+            break;
+        }
+    }
+    vlc_object_release( p_input_thread );
+    return i_spu;
+}
+
+void libvlc_video_set_spu( libvlc_media_instance_t *p_mi, int i_spu,
+                           libvlc_exception_t *p_e )
+{
+    input_thread_t *p_input_thread = libvlc_get_input_thread( p_mi, p_e );
+    vlc_value_t val_list;
+    int i_ret = -1;
+    int i;
+
+    if( !p_input_thread )
+        return;
+
+    var_Change( p_input_thread, "spu-es", VLC_VAR_GETCHOICES, &val_list, NULL );
+    for( i = 0; i < val_list.p_list->i_count; i++ )
+    {
+        vlc_value_t val = val_list.p_list->p_values[i];
+        if( i_spu == i )
+        {
+            vlc_value_t new_val;
+
+            new_val.i_int = val.i_int;
+            i_ret = var_Set( p_input_thread, "spu-es", new_val );
+            if( i_ret < 0 )
+            {
+                libvlc_exception_raise( p_e, "Setting subtitle value failed" );
+            }
+            vlc_object_release( p_input_thread );
+            return;
+        }
+    }
+    libvlc_exception_raise( p_e, "Subtitle value out of range" );
+    vlc_object_release( p_input_thread );
+}
+
+char *libvlc_video_get_crop_geometry( libvlc_media_instance_t *p_mi,
+                                   libvlc_exception_t *p_e )
+{
+    char *psz_geometry = 0;
+    vout_thread_t *p_vout = GetVout( p_mi, p_e );
+
+    if( !p_vout )
+        return 0;
+
+    psz_geometry = var_GetString( p_vout, "crop" );
+    vlc_object_release( p_vout );
+    return psz_geometry;
+}
+
+void libvlc_video_set_crop_geometry( libvlc_media_instance_t *p_mi,
+                                    char *psz_geometry, libvlc_exception_t *p_e )
+{
+    vout_thread_t *p_vout = GetVout( p_mi, p_e );
+    int i_ret = -1;
+
+    if( !p_vout )
+        return;
+
+    i_ret = var_SetString( p_vout, "crop", psz_geometry );
+    if( i_ret )
+        libvlc_exception_raise( p_e,
+                        "Unexpected error while setting crop geometry" );
+
+    vlc_object_release( p_vout );
+}
+
+int libvlc_video_destroy( libvlc_media_instance_t *p_mi,
+                          libvlc_exception_t *p_e )
+{
+    vout_thread_t *p_vout = GetVout( p_mi, p_e );
+    vlc_object_detach( p_vout ); 
+    vlc_object_release( p_vout );
+    vout_Destroy( p_vout );
+
+    return 0;
+}