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System: Add srs duration api

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This commit is contained in:
winlin 2020-09-17 12:52:16 +08:00
parent f7faa13dc5
commit 7459f287e0
2 changed files with 12 additions and 0 deletions
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9
trunk/src/core/srs_core_time.cpp
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@ -23,3 +23,12 @@
#include <srs_core_time.hpp> #include <srs_core_time.hpp>
srs_utime_t srs_duration(srs_utime_t start, srs_utime_t end)
{
if (start == 0 || end == 0) {
return 0;
}
return end - start;
}

3
trunk/src/core/srs_core_time.hpp
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@ -36,6 +36,9 @@ typedef int64_t srs_utime_t;
#define srsu2ms(us) ((us) / SRS_UTIME_MILLISECONDS) #define srsu2ms(us) ((us) / SRS_UTIME_MILLISECONDS)
#define srsu2msi(us) int((us) / SRS_UTIME_MILLISECONDS) #define srsu2msi(us) int((us) / SRS_UTIME_MILLISECONDS)
// Them time duration = end - start. return 0, if start or end is 0.
srs_utime_t srs_duration(srs_utime_t start, srs_utime_t end);
// The time unit in ms, for example 120 * SRS_UTIME_SECONDS means 120s. // The time unit in ms, for example 120 * SRS_UTIME_SECONDS means 120s.
#define SRS_UTIME_SECONDS 1000000LL #define SRS_UTIME_SECONDS 1000000LL