LCOV - code coverage report
Current view: top level - libavformat - wv.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 15 17 88.2 %
Date: 2017-12-12 11:08:38 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * WavPack shared functions
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg is free software; you can redistribute it and/or
       7             :  * modify it under the terms of the GNU Lesser General Public
       8             :  * License as published by the Free Software Foundation; either
       9             :  * version 2.1 of the License, or (at your option) any later version.
      10             :  *
      11             :  * FFmpeg is distributed in the hope that it will be useful,
      12             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :  * Lesser General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public
      17             :  * License along with FFmpeg; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : #include <stdint.h>
      22             : #include <string.h>
      23             : 
      24             : #include "libavutil/common.h"
      25             : #include "libavutil/intreadwrite.h"
      26             : 
      27             : #include "wv.h"
      28             : 
      29        8334 : int ff_wv_parse_header(WvHeader *wv, const uint8_t *data)
      30             : {
      31        8334 :     memset(wv, 0, sizeof(*wv));
      32             : 
      33        8334 :     if (AV_RL32(data) != MKTAG('w', 'v', 'p', 'k'))
      34           0 :         return AVERROR_INVALIDDATA;
      35             : 
      36        8334 :     wv->blocksize     = AV_RL32(data + 4);
      37        8334 :     if (wv->blocksize < 24 || wv->blocksize > WV_BLOCK_LIMIT)
      38           0 :         return AVERROR_INVALIDDATA;
      39        8334 :     wv->blocksize -= 24;
      40             : 
      41        8334 :     wv->version       = AV_RL16(data + 8);
      42        8334 :     wv->total_samples = AV_RL32(data + 12);
      43        8334 :     wv->block_idx     = AV_RL32(data + 16);
      44        8334 :     wv->samples       = AV_RL32(data + 20);
      45        8334 :     wv->flags         = AV_RL32(data + 24);
      46        8334 :     wv->crc           = AV_RL32(data + 28);
      47             : 
      48        8334 :     wv->initial = !!(wv->flags & WV_FLAG_INITIAL_BLOCK);
      49        8334 :     wv->final   = !!(wv->flags & WV_FLAG_FINAL_BLOCK);
      50             : 
      51        8334 :     return 0;
      52             : }

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