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/*****************************************************************************
* vdummy.c: Dummy video output display method for testing purposes
*****************************************************************************
* Copyright (C) 2000-2009 VLC authors and VideoLAN
* $Id: 94d1255fef952d3cf6cfdfd337c94b2f5e5c096a $
*
* Authors: Samuel Hocevar <sam@zoy.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_vout_display.h>
#define CHROMA_TEXT N_("Dummy image chroma format")
#define CHROMA_LONGTEXT N_( \
"Force the dummy video output to create images using a specific chroma " \
"format instead of trying to improve performances by using the most " \
"efficient one.")
static int OpenDummy( vlc_object_t * );
static int OpenStats( vlc_object_t * );
static void Close( vlc_object_t * );
vlc_module_begin ()
set_shortname( N_("Dummy") )
set_description( N_("Dummy video output") )
set_capability( "vout display", 0 )
set_callbacks( OpenDummy, Close )
add_shortcut( "dummy" )
set_category( CAT_VIDEO )
set_subcategory( SUBCAT_VIDEO_VOUT )
add_string( "dummy-chroma", NULL, CHROMA_TEXT, CHROMA_LONGTEXT, true )
add_submodule ()
set_description( N_("Statistics video output") )
set_capability( "vout display", 0 )
add_shortcut( "stats" )
set_callbacks( OpenStats, Close )
vlc_module_end ()
/*****************************************************************************
* Local prototypes
*****************************************************************************/
struct vout_display_sys_t {
picture_pool_t *pool;
};
static picture_pool_t *Pool(vout_display_t *, unsigned count);
static void Display(vout_display_t *, picture_t *, subpicture_t *);
static void DisplayStat(vout_display_t *, picture_t *, subpicture_t *);
static int Control(vout_display_t *, int, va_list);
/*****************************************************************************
* OpenVideo: activates dummy vout display method
*****************************************************************************/
static int Open(vlc_object_t *object,
void (*display)(vout_display_t *, picture_t *, subpicture_t *))
{
vout_display_t *vd = (vout_display_t *)object;
vout_display_sys_t *sys;
vd->sys = sys = calloc(1, sizeof(*sys));
if (!sys)
return VLC_EGENERIC;
sys->pool = NULL;
/* p_vd->info is not modified */
char *chroma = var_InheritString(vd, "dummy-chroma");
if (chroma) {
vlc_fourcc_t fcc = vlc_fourcc_GetCodecFromString(VIDEO_ES, chroma);
if (fcc != 0) {
msg_Dbg(vd, "forcing chroma 0x%.8x (%4.4s)", fcc, (char*)&fcc);
vd->fmt.i_chroma = fcc;
}
free(chroma);
}
vd->pool = Pool;
vd->prepare = NULL;
vd->display = display;
vd->control = Control;
vd->manage = NULL;
return VLC_SUCCESS;
}
static int OpenDummy(vlc_object_t *object)
{
return Open(object, Display);
}
static int OpenStats(vlc_object_t *object)
{
return Open(object, DisplayStat);
}
static void Close(vlc_object_t *object)
{
vout_display_t *vd = (vout_display_t *)object;
vout_display_sys_t *sys = vd->sys;
if (sys->pool)
picture_pool_Delete(sys->pool);
free(sys);
}
static picture_pool_t *Pool(vout_display_t *vd, unsigned count)
{
vout_display_sys_t *sys = vd->sys;
if (!sys->pool)
sys->pool = picture_pool_NewFromFormat(&vd->fmt, count);
return sys->pool;
}
static void Display(vout_display_t *vd, picture_t *picture, subpicture_t *subpicture)
{
VLC_UNUSED(vd);
VLC_UNUSED(subpicture);
picture_Release(picture);
}
static void DisplayStat(vout_display_t *vd, picture_t *picture, subpicture_t *subpicture)
{
VLC_UNUSED(vd);
VLC_UNUSED(subpicture);
if (vd->fmt.i_width*vd->fmt.i_height >= sizeof(mtime_t)) {
mtime_t date;
memcpy(&date, picture->p->p_pixels, sizeof(date));
msg_Dbg(vd, "VOUT got %"PRIu64" ms offset",
(mdate() - date) / 1000 );
}
picture_Release(picture);
}
static int Control(vout_display_t *vd, int query, va_list args)
{
VLC_UNUSED(vd);
VLC_UNUSED(query);
VLC_UNUSED(args);
return VLC_SUCCESS;
}
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