LCOV - code coverage report
Current view: top level - src/libavutil - timestamp.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 8 8 100.0 %
Date: 2017-01-21 09:32:20 Functions: 2 2 100.0 %

          Line data    Source code
       1             : /*
       2             :  * This file is part of FFmpeg.
       3             :  *
       4             :  * FFmpeg is free software; you can redistribute it and/or
       5             :  * modify it under the terms of the GNU Lesser General Public
       6             :  * License as published by the Free Software Foundation; either
       7             :  * version 2.1 of the License, or (at your option) any later version.
       8             :  *
       9             :  * FFmpeg is distributed in the hope that it will be useful,
      10             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12             :  * Lesser General Public License for more details.
      13             :  *
      14             :  * You should have received a copy of the GNU Lesser General Public
      15             :  * License along with FFmpeg; if not, write to the Free Software
      16             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      17             :  */
      18             : 
      19             : /**
      20             :  * @file
      21             :  * timestamp utils, mostly useful for debugging/logging purposes
      22             :  */
      23             : 
      24             : #ifndef AVUTIL_TIMESTAMP_H
      25             : #define AVUTIL_TIMESTAMP_H
      26             : 
      27             : #include "common.h"
      28             : 
      29             : #if defined(__cplusplus) && !defined(__STDC_FORMAT_MACROS) && !defined(PRId64)
      30             : #error missing -D__STDC_FORMAT_MACROS / #define __STDC_FORMAT_MACROS
      31             : #endif
      32             : 
      33             : #define AV_TS_MAX_STRING_SIZE 32
      34             : 
      35             : /**
      36             :  * Fill the provided buffer with a string containing a timestamp
      37             :  * representation.
      38             :  *
      39             :  * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE
      40             :  * @param ts the timestamp to represent
      41             :  * @return the buffer in input
      42             :  */
      43       13676 : static inline char *av_ts_make_string(char *buf, int64_t ts)
      44             : {
      45       13676 :     if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS");
      46       13674 :     else                      snprintf(buf, AV_TS_MAX_STRING_SIZE, "%" PRId64, ts);
      47       13676 :     return buf;
      48             : }
      49             : 
      50             : /**
      51             :  * Convenience macro, the return value should be used only directly in
      52             :  * function arguments but never stand-alone.
      53             :  */
      54             : #define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts)
      55             : 
      56             : /**
      57             :  * Fill the provided buffer with a string containing a timestamp time
      58             :  * representation.
      59             :  *
      60             :  * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE
      61             :  * @param ts the timestamp to represent
      62             :  * @param tb the timebase of the timestamp
      63             :  * @return the buffer in input
      64             :  */
      65       14705 : static inline char *av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb)
      66             : {
      67       14705 :     if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS");
      68       14705 :     else                      snprintf(buf, AV_TS_MAX_STRING_SIZE, "%.6g", av_q2d(*tb) * ts);
      69       14705 :     return buf;
      70             : }
      71             : 
      72             : /**
      73             :  * Convenience macro, the return value should be used only directly in
      74             :  * function arguments but never stand-alone.
      75             :  */
      76             : #define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb)
      77             : 
      78             : #endif /* AVUTIL_TIMESTAMP_H */

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