/* * RAW Dirac demuxer * Copyright (c) 2007 Marco Gerards <marco@gnu.org> * * 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" static int dirac_probe(const AVProbeData *p){    unsigned size;    if (AV_RL32(p->buf) != MKTAG('B', 'B', 'C', 'D'))        return 0;     size = AV_RB32(p->buf+5);    if (size < 13)        return 0;    if (size + 13LL > p->buf_size)        return AVPROBE_SCORE_MAX / 4;    if (AV_RL32(p->buf + size) != MKTAG('B', 'B', 'C', 'D'))        return 0;     return AVPROBE_SCORE_MAX;} FF_DEF_RAWVIDEO_DEMUXER(dirac, "raw Dirac", dirac_probe, NULL, AV_CODEC_ID_DIRAC)