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/* -*- Mode: c++ -*-
* vim: set expandtab tabstop=4 shiftwidth=4:
*
* Original Project
* MythTV http://www.mythtv.org
*
* Copyright (c) 2004, 2005 John Pullan <john@pullan.org>
* Copyright (c) 2009, Janne Grunau <janne-mythtv@grunau.be>
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* Or, point your browser to http://www.gnu.org/copyleft/gpl.html
*
*/
extern "C" {
#include "libswscale/swscale.h"
}
#include <QMutex>
#include <QMutexLocker>
#include "mythverbose.h"
#include "myth_imgconvert.h"
int myth_sws_img_convert(AVPicture *dst, PixelFormat dst_pix_fmt, AVPicture *src,
PixelFormat pix_fmt, int width, int height)
{
static QMutex ctx_lock;
static struct SwsContext *convert_ctx;
QMutexLocker locker(&ctx_lock);
convert_ctx = sws_getCachedContext(convert_ctx, width, height, pix_fmt,
width, height, dst_pix_fmt,
SWS_FAST_BILINEAR, NULL, NULL, NULL);
if (convert_ctx == NULL) {
VERBOSE(VB_IMPORTANT, "myth_sws_img_convert: Cannot initialize "
"the image conversion context");
return -1;
}
sws_scale(convert_ctx, src->data, src->linesize,
0, height, dst->data, dst->linesize);
return 0;
}
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