/*
 * Copyright (C) 2010-2011 Teluu Inc. (http://www.teluu.com)
 *
 * 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
 */

/*
 * This file contains common utilities that are useful for pjmedia components
 * that use ffmpeg. This is not a public API.
 */

#ifndef __PJMEDIA_FFMPEG_UTIL_H__
#define __PJMEDIA_FFMPEG_UTIL_H__

#include <pjmedia/format.h>

#ifdef _MSC_VER
#   ifndef __cplusplus
#       define inline _inline
#   endif
#   pragma warning(disable:4244) /* possible loss of data */
#endif

#include <libavutil/avutil.h>
#include <libavcodec/avcodec.h>


#ifdef PJMEDIA_USE_OLD_FFMPEG
#   define AVPixelFormat        PixelFormat
#   define AV(str)              str
#   define PIX_FMT_GBRP         PIX_FMT_GBR24P
#else
#   define AV(str)              AV_ ## str
#endif

#define LIBAVCODEC_VER_AT_LEAST(major,minor)  (LIBAVCODEC_VERSION_MAJOR > major || \
                                               (LIBAVCODEC_VERSION_MAJOR == major && \
                                                LIBAVCODEC_VERSION_MINOR >= minor))

#define LIBAVFORMAT_VER_AT_LEAST(major,minor)  (LIBAVFORMAT_VERSION_MAJOR > major || \
                                                (LIBAVFORMAT_VERSION_MAJOR == major && \
                                                 LIBAVFORMAT_VERSION_MINOR >= minor))

#define LIBAVUTIL_VER_AT_LEAST(major,minor)  (LIBAVUTIL_VERSION_MAJOR > major || \
                                              (LIBAVUTIL_VERSION_MAJOR == major && \
                                               LIBAVUTIL_VERSION_MINOR >= minor))

#if LIBAVCODEC_VER_AT_LEAST(60,39)
#   define avcodec_close(x)     ((void)0)
#endif

void pjmedia_ffmpeg_add_ref();
void pjmedia_ffmpeg_dec_ref();

pj_status_t pjmedia_format_id_to_PixelFormat(pjmedia_format_id fmt_id,
                                             enum AVPixelFormat *pixel_format);

pj_status_t PixelFormat_to_pjmedia_format_id(enum AVPixelFormat pf,
                                             pjmedia_format_id *fmt_id);

pj_status_t pjmedia_format_id_to_CodecID(pjmedia_format_id fmt_id,
                                         unsigned *codec_id);

pj_status_t CodecID_to_pjmedia_format_id(unsigned codec_id,
                                         pjmedia_format_id *fmt_id);

#endif /* __PJMEDIA_FFMPEG_UTIL_H__ */
