snprintf(ctx->header, 512, "Acquisition with %d/%d probes at ", ctx->num_enabled_probes, num_probes);
if(samplerate >= GHZ(1))
snprintf(ctx->header + strlen(ctx->header), 512, "%"PRIu64" GHz", samplerate / 1000000000);
snprintf(ctx->header, 512, "Acquisition with %d/%d probes at ", ctx->num_enabled_probes, num_probes);
if(samplerate >= GHZ(1))
snprintf(ctx->header + strlen(ctx->header), 512, "%"PRIu64" GHz", samplerate / 1000000000);