Merge "visualizer: fix sub-overflow"

        if (context->state == EFFECT_STATE_ACTIVE) {

            int32_t latency_ms = visu_ctxt->latency;

            const uint32_t delta_ms = visualizer_get_delta_time_ms_from_updated_time(visu_ctxt);

            const int32_t delta_ms = visualizer_get_delta_time_ms_from_updated_time(visu_ctxt);

            latency_ms -= delta_ms;

            if (latency_ms < 0) {

                latency_ms = 0;

            }

            const uint32_t delta_smp = context->config.inputCfg.samplingRate * latency_ms / 1000;

            int32_t capture_point = visu_ctxt->capture_idx - visu_ctxt->capture_size - delta_smp;

            int32_t capture_size = visu_ctxt->capture_size;

            int64_t capture_point = visu_ctxt->capture_idx;

            capture_point -= visu_ctxt->capture_size;

            capture_point -= delta_smp;

            int64_t capture_size = visu_ctxt->capture_size;

            if (capture_point < 0) {

                int32_t size = -capture_point;

                int64_t size = -capture_point;

                if (size > capture_size)

                    size = capture_size;