| /* |
| * 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 |
| */ |
| |
| /** |
| * @file |
| * timestamp utils, mostly useful for debugging/logging purposes |
| */ |
| |
| #ifndef AVUTIL_TIMESTAMP_H |
| #define AVUTIL_TIMESTAMP_H |
| |
| #include "common.h" |
| |
| #if defined(__cplusplus) && !defined(__STDC_FORMAT_MACROS) && !defined(PRId64) |
| #error missing -D__STDC_FORMAT_MACROS / #define __STDC_FORMAT_MACROS |
| #endif |
| |
| #define AV_TS_MAX_STRING_SIZE 32 |
| |
| /** |
| * Fill the provided buffer with a string containing a timestamp |
| * representation. |
| * |
| * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE |
| * @param ts the timestamp to represent |
| * @return the buffer in input |
| */ |
| static inline char *av_ts_make_string(char *buf, int64_t ts) |
| { |
| if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); |
| else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%"PRId64, ts); |
| return buf; |
| } |
| |
| /** |
| * Convenience macro, the return value should be used only directly in |
| * function arguments but never stand-alone. |
| */ |
| #define av_ts2str(ts) av_ts_make_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts) |
| |
| /** |
| * Fill the provided buffer with a string containing a timestamp time |
| * representation. |
| * |
| * @param buf a buffer with size in bytes of at least AV_TS_MAX_STRING_SIZE |
| * @param ts the timestamp to represent |
| * @param tb the timebase of the timestamp |
| * @return the buffer in input |
| */ |
| static inline char *av_ts_make_time_string(char *buf, int64_t ts, AVRational *tb) |
| { |
| if (ts == AV_NOPTS_VALUE) snprintf(buf, AV_TS_MAX_STRING_SIZE, "NOPTS"); |
| else snprintf(buf, AV_TS_MAX_STRING_SIZE, "%.6g", av_q2d(*tb) * ts); |
| return buf; |
| } |
| |
| /** |
| * Convenience macro, the return value should be used only directly in |
| * function arguments but never stand-alone. |
| */ |
| #define av_ts2timestr(ts, tb) av_ts_make_time_string((char[AV_TS_MAX_STRING_SIZE]){0}, ts, tb) |
| |
| #endif /* AVUTIL_TIMESTAMP_H */ |