/*****************************************************************************
* video_text.c : text manipulation functions
*****************************************************************************
- * Copyright (C) 1999-2004 VideoLAN
+ * Copyright (C) 1999-2007 the VideoLAN team
* $Id$
*
- * Author: Sigmund Augdal <sigmunau@idi.ntnu.no>
+ * Author: Sigmund Augdal Helberg <dnumgis@videolan.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
*
* 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.
*****************************************************************************/
-#include <vlc/vout.h>
-#include "vlc_block.h"
-#include "vlc_filter.h"
-#include "osd.h"
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#include <assert.h>
+
+#include <vlc_common.h>
+#include <vlc_vout.h>
+#include <vlc_block.h>
+#include <vlc_filter.h>
+#include <vlc_osd.h>
+
+/* TODO remove access to private vout data */
+#include "vout_internal.h"
/**
* \brief Show text on the video for some time
* \param p_vout pointer to the vout the text is to be showed on
* \param i_channel Subpicture channel
* \param psz_string The text to be shown
- * \param p_style Pointer to a struct with text style info
+ * \param p_style Pointer to a struct with text style info (it is duplicated if non NULL)
* \param i_flags flags for alignment and such
* \param i_hmargin horizontal margin in pixels
* \param i_vmargin vertical margin in pixels
* \param i_duration Amount of time the text is to be shown.
*/
int vout_ShowTextRelative( vout_thread_t *p_vout, int i_channel,
- char *psz_string, text_style_t *p_style,
+ char *psz_string, const text_style_t *p_style,
int i_flags, int i_hmargin, int i_vmargin,
mtime_t i_duration )
{
- subpicture_t *p_subpic = NULL;
mtime_t i_now = mdate();
- if( p_vout->p_text && p_vout->p_text->p_module &&
- p_vout->p_text->pf_render_string )
- {
- block_t *p_block = block_New( p_vout, strlen(psz_string) + 1 );
- if( p_block )
- {
- memcpy( p_block->p_buffer, psz_string, p_block->i_buffer );
- p_block->i_pts = p_block->i_dts = i_now;
- p_block->i_length = i_duration;
-
- p_subpic = p_vout->p_text->pf_render_string( p_vout->p_text,
- p_block );
- if( p_subpic )
- {
- p_subpic->i_x = i_hmargin;
- p_subpic->i_y = i_vmargin;
- p_subpic->i_flags = i_flags;
- p_subpic->i_channel = i_channel;
-
- vout_DisplaySubPicture( p_vout, p_subpic );
- return VLC_SUCCESS;
- }
- }
- return VLC_EGENERIC;
- }
- else
- {
- msg_Warn( p_vout, "No text renderer found" );
- return VLC_EGENERIC;
- }
+ return vout_ShowTextAbsolute( p_vout, i_channel, psz_string,
+ p_style, i_flags, i_hmargin, i_vmargin,
+ i_now, i_now + i_duration );
}
/**
* \param p_vout pointer to the vout the text is to be showed on
* \param i_channel Subpicture channel
* \param psz_string The text to be shown
- * \param p_style Pointer to a struct with text style info
+ * \param p_style Pointer to a struct with text style info (it is duplicated if non NULL)
* \param i_flags flags for alignment and such
* \param i_hmargin horizontal margin in pixels
* \param i_vmargin vertical margin in pixels
* is about to be shown
*/
int vout_ShowTextAbsolute( vout_thread_t *p_vout, int i_channel,
- char *psz_string, text_style_t *p_style,
+ const char *psz_string, const text_style_t *p_style,
int i_flags, int i_hmargin, int i_vmargin,
mtime_t i_start, mtime_t i_stop )
{
- subpicture_t *p_subpic = NULL;
+ subpicture_t *p_spu;
+ video_format_t fmt;
- if( p_vout->p_text && p_vout->p_text->p_module &&
- p_vout->p_text->pf_render_string )
- {
- block_t *p_block = block_New( p_vout, strlen(psz_string) + 1 );
- if( p_block )
- {
- memcpy( p_block->p_buffer, psz_string, p_block->i_buffer );
- p_block->i_pts = p_block->i_dts = i_start;
- p_block->i_length = i_stop - i_start;
-
- p_subpic = p_vout->p_text->pf_render_string( p_vout->p_text,
- p_block );
- if( p_subpic )
- {
- p_subpic->i_x = i_hmargin;
- p_subpic->i_y = i_vmargin;
- p_subpic->i_flags = i_flags;
- p_subpic->i_channel = i_channel;
-
- vout_DisplaySubPicture( p_vout, p_subpic );
- return VLC_SUCCESS;
- }
- }
+ if( !psz_string ) return VLC_EGENERIC;
+
+ p_spu = subpicture_New( NULL );
+ if( !p_spu )
return VLC_EGENERIC;
- }
- else
+
+ p_spu->i_channel = i_channel;
+ p_spu->i_start = i_start;
+ p_spu->i_stop = i_stop;
+ p_spu->b_ephemer = true;
+ p_spu->b_absolute = false;
+ p_spu->b_fade = true;
+
+
+ /* Create a new subpicture region */
+ memset( &fmt, 0, sizeof(video_format_t) );
+ fmt.i_chroma = VLC_CODEC_TEXT;
+ fmt.i_width = fmt.i_height = 0;
+ fmt.i_x_offset = fmt.i_y_offset = 0;
+ p_spu->p_region = subpicture_region_New( &fmt );
+ if( !p_spu->p_region )
{
- msg_Warn( p_vout, "No text renderer found" );
+ msg_Err( p_vout, "cannot allocate SPU region" );
+ subpicture_Delete( p_spu );
return VLC_EGENERIC;
}
-}
+ p_spu->p_region->psz_text = strdup( psz_string );
+ p_spu->p_region->i_align = i_flags & SUBPICTURE_ALIGN_MASK;
+ p_spu->p_region->i_x = i_hmargin;
+ p_spu->p_region->i_y = i_vmargin;
+ if( p_style )
+ p_spu->p_region->p_style = text_style_Duplicate( p_style );
+
+ spu_DisplaySubpicture( vout_GetSpu( p_vout ), p_spu );
+
+ return VLC_SUCCESS;
+}
+#undef vout_OSDMessage
/**
* \brief Write an informative message at the default location,
* for the default duration and only if the OSD option is enabled.
* \param i_channel Subpicture channel
* \param psz_format printf style formatting
**/
-void __vout_OSDMessage( vlc_object_t *p_caller, int i_channel,
- char *psz_format, ... )
+void vout_OSDMessage( vlc_object_t *p_caller, int i_channel,
+ const char *psz_format, ... )
{
vout_thread_t *p_vout;
- char *psz_string;
+ char *psz_string = NULL;
va_list args;
- if( !config_GetInt( p_caller, "osd" ) ) return;
+ if( !var_InheritBool( p_caller, "osd" ) ) return;
p_vout = vlc_object_find( p_caller, VLC_OBJECT_VOUT, FIND_ANYWHERE );
-
if( p_vout )
{
va_start( args, psz_format );
- vasprintf( &psz_string, psz_format, args );
-
- vout_ShowTextRelative( p_vout, i_channel, psz_string, NULL,
- OSD_ALIGN_TOP|OSD_ALIGN_RIGHT, 30,20,1000000 );
-
+ if( vasprintf( &psz_string, psz_format, args ) != -1 )
+ {
+ vout_ShowTextRelative( p_vout, i_channel, psz_string, NULL,
+ OSD_ALIGN_TOP|OSD_ALIGN_RIGHT,
+ 30 + p_vout->p->fmt_in.i_width
+ - p_vout->p->fmt_in.i_visible_width
+ - p_vout->p->fmt_in.i_x_offset,
+ 20 + p_vout->p->fmt_in.i_y_offset, 1000000 );
+ free( psz_string );
+ }
vlc_object_release( p_vout );
- free( psz_string );
va_end( args );
}
}
+/* */
+text_style_t *text_style_New( void )
+{
+ text_style_t *p_style = calloc( 1, sizeof(*p_style) );
+ if( !p_style )
+ return NULL;
+
+ /* initialize to default text style */
+ p_style->psz_fontname = NULL;
+ p_style->i_font_size = 22;
+ p_style->i_font_color = 0xffffff;
+ p_style->i_font_alpha = 0xff;
+ p_style->i_style_flags = STYLE_OUTLINE;
+ p_style->i_outline_color = 0x000000;
+ p_style->i_outline_alpha = 0xff;
+ p_style->i_shadow_color = 0x000000;
+ p_style->i_shadow_alpha = 0xff;
+ p_style->i_background_color = 0xffffff;
+ p_style->i_background_alpha = 0x80;
+ p_style->i_karaoke_background_color = 0xffffff;
+ p_style->i_karaoke_background_alpha = 0xff;
+ p_style->i_outline_width = 1;
+ p_style->i_shadow_width = 0;
+ p_style->i_spacing = -1;
+
+ return p_style;
+}
+
+text_style_t *text_style_Copy( text_style_t *p_dst, const text_style_t *p_src )
+{
+ if( !p_src )
+ return p_dst;
+
+ /* */
+ *p_dst = *p_src;
+
+ if( p_src->psz_fontname )
+ p_dst->psz_fontname = strdup( p_src->psz_fontname );
+
+ return p_dst;
+}
+
+text_style_t *text_style_Duplicate( const text_style_t *p_src )
+{
+ if( !p_src )
+ return NULL;
+
+ text_style_t *p_dst = calloc( 1, sizeof(*p_dst) );
+ if( p_dst )
+ text_style_Copy( p_dst, p_src );
+ return p_dst;
+}
+
+void text_style_Delete( text_style_t *p_style )
+{
+ if( p_style )
+ free( p_style->psz_fontname );
+ free( p_style );
+}
+
projects / vlc / blobdiff