diff --git a/src/audio/src/src_ipc4.c b/src/audio/src/src_ipc4.c index cf87bde47554..8ee9cba44aa6 100644 --- a/src/audio/src/src_ipc4.c +++ b/src/audio/src/src_ipc4.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -107,9 +108,17 @@ int src_set_params(struct processing_module *mod, struct sof_sink *sink) * as SRC uses period value to calculate its internal buffers, * it must be done here, right after setting sink parameters */ - if (dev->ipc_config.proc_domain == COMP_PROCESSING_DOMAIN_DP) - dev->period = 1000000 * sink_get_min_free_space(sink) / + if (dev->ipc_config.proc_domain == COMP_PROCESSING_DOMAIN_DP) { + uint32_t min_free_size = + sink_get_frame_bytes(sink) * (sink_get_rate(sink) / + (USEC_PER_SEC / LL_TIMER_PERIOD_US)); + min_free_size = MIN(min_free_size, sink_get_min_free_space(sink)); + + dev->period = 1000000 * min_free_size / (sink_get_frame_bytes(sink) * sink_get_rate(sink)); + /* Round down period to integer number of LL ticks */ + dev->period = (dev->period / LL_TIMER_PERIOD_US) * LL_TIMER_PERIOD_US; + } comp_info(dev, "SRC DP period calculated as: %u", dev->period);