diff options
author | Lennart Poettering <lennart@poettering.net> | 2008-08-28 17:53:01 +0200 |
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committer | Lennart Poettering <lennart@poettering.net> | 2008-08-28 17:53:01 +0200 |
commit | bb8263be6fbbb227989e8cb4f5dc7dc67216724d (patch) | |
tree | 4b5ac0c0714ac1d36db09ac8895b32a1061209d5 /src/pulsecore/sample-util.c | |
parent | f79c66581292fc76160e29c7e713354cb8037270 (diff) |
add byte-to-usec and usec-to-byte converters that round up, not down
Diffstat (limited to 'src/pulsecore/sample-util.c')
-rw-r--r-- | src/pulsecore/sample-util.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/pulsecore/sample-util.c b/src/pulsecore/sample-util.c index 4b2efe5e..b4234af5 100644 --- a/src/pulsecore/sample-util.c +++ b/src/pulsecore/sample-util.c @@ -31,6 +31,8 @@ #include <liboil/liboilfuncs.h> #include <liboil/liboil.h> +#include <pulse/timeval.h> + #include <pulsecore/log.h> #include <pulsecore/macro.h> #include <pulsecore/g711.h> @@ -981,3 +983,34 @@ void pa_sample_clamp(pa_sample_format_t format, void *dst, size_t dstr, const vo } } } + +/* Similar to pa_bytes_to_usec() but rounds up, not down */ + +pa_usec_t pa_bytes_to_usec_round_up(uint64_t length, const pa_sample_spec *spec) { + size_t fs; + pa_usec_t usec; + + pa_assert(spec); + + fs = pa_frame_size(spec); + length = (length + fs - 1) / fs; + + usec = (pa_usec_t) length * PA_USEC_PER_SEC; + + return (usec + spec->rate - 1) / spec->rate; +} + +/* Similar to pa_usec_to_bytes() but rounds up, not down */ + +size_t pa_usec_to_bytes_round_up(pa_usec_t t, const pa_sample_spec *spec) { + uint64_t u; + pa_assert(spec); + + u = (uint64_t) t * (uint64_t) spec->rate; + + u = (u + PA_USEC_PER_SEC - 1) / PA_USEC_PER_SEC; + + u *= pa_frame_size(spec); + + return (size_t) u; +} |