/*

 * RAW DNxHD (SMPTE VC-3) demuxer

 * Copyright (c) 2008 Baptiste Coudurier <baptiste.coudurier@gmail.com>

 * Copyright (c) 2009 Reimar Döffinger <Reimar.Doeffinger@gmx.de>

 *

 * This file is part of FFmpeg.

 *

 * FFmpeg 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.

 *

 * FFmpeg 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 FFmpeg; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

#include "libavutil/intreadwrite.h"

#include "avformat.h"

#include "rawdec.h"

#include "libavcodec/dnxhddata.h"

static int dnxhd_probe(const AVProbeData *p)

{

    int w, h, compression_id;

    if (p->buf_size < 0x2c)

        return 0;

    if (ff_dnxhd_parse_header_prefix(p->buf) == 0)

        return 0;

    h = AV_RB16(p->buf + 0x18);

    w = AV_RB16(p->buf + 0x1a);

    if (!w || !h)

        return 0;

    compression_id = AV_RB32(p->buf + 0x28);

    if ((compression_id < 1235 || compression_id > 1260) &&

        (compression_id < 1270 || compression_id > 1274))

        return 0;

    return AVPROBE_SCORE_MAX;

}

FF_DEF_RAWVIDEO_DEMUXER(dnxhd, "raw DNxHD (SMPTE VC-3)", dnxhd_probe, NULL, AV_CODEC_ID_DNXHD)