LCOV - code coverage report
Current view: top level - libavformat - diracdec.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 8 11 72.7 %
Date: 2017-12-14 08:27:08 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * RAW Dirac demuxer
       3             :  * Copyright (c) 2007 Marco Gerards <marco@gnu.org>
       4             :  *
       5             :  * This file is part of FFmpeg.
       6             :  *
       7             :  * FFmpeg is free software; you can redistribute it and/or
       8             :  * modify it under the terms of the GNU Lesser General Public
       9             :  * License as published by the Free Software Foundation; either
      10             :  * version 2.1 of the License, or (at your option) any later version.
      11             :  *
      12             :  * FFmpeg is distributed in the hope that it will be useful,
      13             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15             :  * Lesser General Public License for more details.
      16             :  *
      17             :  * You should have received a copy of the GNU Lesser General Public
      18             :  * License along with FFmpeg; if not, write to the Free Software
      19             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      20             :  */
      21             : 
      22             : #include "libavutil/intreadwrite.h"
      23             : #include "avformat.h"
      24             : #include "rawdec.h"
      25             : 
      26        6130 : static int dirac_probe(AVProbeData *p)
      27             : {
      28             :     unsigned size;
      29        6130 :     if (AV_RL32(p->buf) != MKTAG('B', 'B', 'C', 'D'))
      30        6128 :         return 0;
      31             : 
      32           2 :     size = AV_RB32(p->buf+5);
      33           2 :     if (size < 13)
      34           0 :         return 0;
      35           2 :     if (size + 13LL > p->buf_size)
      36           0 :         return AVPROBE_SCORE_MAX / 4;
      37           2 :     if (AV_RL32(p->buf + size) != MKTAG('B', 'B', 'C', 'D'))
      38           0 :         return 0;
      39             : 
      40           2 :     return AVPROBE_SCORE_MAX;
      41             : }
      42             : 
      43             : FF_DEF_RAWVIDEO_DEMUXER(dirac, "raw Dirac", dirac_probe, NULL, AV_CODEC_ID_DIRAC)

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