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43 lines
1.4 KiB
43 lines
1.4 KiB
/* |
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* RAW Dirac demuxer |
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* Copyright (c) 2007 Marco Gerards <marco@gnu.org> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/intreadwrite.h" |
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#include "avformat.h" |
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#include "rawdec.h" |
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static int dirac_probe(const AVProbeData *p) |
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{ |
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unsigned size; |
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if (AV_RL32(p->buf) != MKTAG('B', 'B', 'C', 'D')) |
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return 0; |
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size = AV_RB32(p->buf+5); |
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if (size < 13) |
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return 0; |
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if (size + 13LL > p->buf_size) |
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return AVPROBE_SCORE_MAX / 4; |
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if (AV_RL32(p->buf + size) != MKTAG('B', 'B', 'C', 'D')) |
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return 0; |
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return AVPROBE_SCORE_MAX; |
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} |
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FF_DEF_RAWVIDEO_DEMUXER(dirac, "raw Dirac", dirac_probe, NULL, AV_CODEC_ID_DIRAC)
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