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-rw-r--r--src/audio_format.h17
1 files changed, 15 insertions, 2 deletions
diff --git a/src/audio_format.h b/src/audio_format.h
index d2461a338..e45d79cd5 100644
--- a/src/audio_format.h
+++ b/src/audio_format.h
@@ -47,14 +47,27 @@ static inline int audio_format_equals(const struct audio_format *a,
a->channels == b->channels;
}
+/**
+ * Returns the size of each (mono) sample in bytes.
+ */
+static inline unsigned audio_format_sample_size(const struct audio_format *af)
+{
+ if (af->bits <= 8)
+ return 1;
+ else if (af->bits <= 16)
+ return 2;
+ else
+ return 4;
+}
+
static inline double audio_format_time_to_size(const struct audio_format *af)
{
- return af->sampleRate * af->bits * af->channels / 8.0;
+ return af->sampleRate * af->channels * audio_format_sample_size(af);
}
static inline double audioFormatSizeToTime(const struct audio_format *af)
{
- return 8.0 / af->bits / af->channels / af->sampleRate;
+ return 1.0 / audio_format_time_to_size(af);
}
#endif